Home Energy Audit Tucson AZ

Tucson's extreme climate creates unique energy challenges for homeowners—and unprecedented opportunities for savings. In Southern Arizona where summer temperatures exceed 110°F for months and air conditioning systems run 2,500-3,000 hours annually (nearly triple the national average), inefficient homes waste staggering amounts of energy and money. Most Tucson homeowners spend $2,400-$3,600 annually on electricity, with 60-70% going directly to heating and cooling. Yet studies consistently show that typical Arizona homes waste 30-45% of this energy through preventable inefficiencies: leaking ductwork losing 20-40% of conditioned air into scorching attics, inadequate insulation allowing intense desert heat to penetrate living spaces, outdated AC systems operating at 50-60% of original efficiency, and air leakage through gaps and cracks forcing HVAC equipment to run constantly just to maintain comfort. For average households, these inefficiencies waste $720-$1,620 every single year—money literally escaping through leaky ducts, thin insulation, and aging equipment.

At Intelligent Design Air Conditioning, Plumbing, Solar, & Electric, we provide comprehensive home energy audits specifically designed for Tucson's punishing climate, using advanced diagnostic equipment and certified energy auditors to identify exactly where your home wastes energy and money. Our detailed assessments go far beyond basic visual inspections—we use thermal imaging cameras revealing hidden air leaks and insulation gaps, blower door testing quantifying whole-house air tightness, duct blaster testing measuring ductwork leakage, energy monitoring equipment tracking real-time consumption patterns, and infrared thermography identifying temperature variations invisible to the naked eye. Every audit produces a detailed written report identifying specific improvements with projected costs, annual savings, and simple payback periods—giving you a clear roadmap to reduce energy consumption by 25-40% while improving comfort, indoor air quality, and home value. With over 46 years of experience serving Tucson families and recognition in thousands of verified customer reviews, we understand that desert living requires specialized expertise and proven solutions.

Why Energy Audits Are Critical in Tucson's Climate: Southern Arizona's extreme conditions create energy challenges unlike anywhere else in the nation. Daily temperature swings of 30-40°F stress building materials and HVAC systems. Intense UV radiation degrades roofing, insulation, and duct materials. Low humidity causes wood framing and seals to dry out and crack. Monsoon humidity creates condensation problems in poorly insulated homes. These combined factors mean Tucson homes lose efficiency faster than homes in moderate climates—making professional energy audits not just beneficial, but essential for controlling costs and maintaining comfort. Our certified auditors understand these regional challenges and focus on improvements specifically proven effective in desert environments, from duct sealing that addresses extreme attic temperatures to insulation strategies optimized for intense solar heat gain.

Rapid Response & Expert Service: Our ServiceTitan-powered dispatch system delivers industry-leading response times for energy audit scheduling: average 3.8-hour booking for initial consultations and next-business-day appointments available across metro Tucson. We maintain 42 fully-equipped service vehicles strategically positioned throughout Tucson, Oro Valley, Marana, Sahuarita, and Vail, each carrying thermal imaging cameras, blower door equipment, duct blasters, energy monitors, and comprehensive testing instruments. Our certified energy auditors average 15+ years of hands-on experience and complete 80+ hours of annual training on the latest diagnostic technologies, energy efficiency standards, and solar readiness evaluation. Whether you need immediate assessment before peak summer cooling season, coordination with planned HVAC upgrades, or comprehensive evaluation before solar installation, our professionals deliver detailed audits typically completed within 3-5 hours with minimal disruption to your daily routine.

Proven Track Record & Community Trust: Intelligent Design has earned the trust of over 85,000 Tucson-area families with a nearly perfect 4.97-star Google rating from 23,000+ verified reviews—the highest-rated energy efficiency and HVAC company in Southern Arizona. We've been the #1 rated home energy audit provider in Tucson for 6 consecutive years (2019-2024 Best of Tucson awards), maintaining BBB A+ accreditation since 1979. Our commitment to honest assessments, verified results through documented testing, and customer satisfaction has made us the most-referred energy audit provider in Pima County. When you're investing in efficiency improvements that will save thousands of dollars over your home's lifetime, you're choosing the company your neighbors trust for family-owned, veteran-operated service with industry-leading expertise and guaranteed results.

Complete Solutions Provider Advantage: Unlike standalone energy auditors who only provide reports, Intelligent Design offers complete implementation services for every recommended improvement. Our multi-trade expertise means one company can handle HVAC system upgrades, duct sealing, duct repair, insulation improvements, smart thermostat installation, water heater replacement, electrical upgrades, and solar installation. This single-source approach eliminates coordination challenges working with multiple contractors, ensures audit recommendations are properly implemented, and allows us to optimize improvements across all home systems—maximizing energy savings and return on investment. Many homeowners implement improvements in phases over 1-3 years, progressively reducing energy consumption and preparing for solar installation while spreading costs across multiple budget periods.

The true value of professional energy audits isn't just identifying problems—it's delivering verified savings and lasting comfort improvements. These detailed case studies from recent Tucson-area projects demonstrate the dramatic energy reductions, cost savings, and return on investment our clients experience with comprehensive energy audits and strategic efficiency improvements. Every project includes documented before-and-after testing, utility bill analysis, and customer satisfaction verification.

Challenge: A 2,800 sq ft single-story home in Oro Valley built in 2005 experienced escalating energy costs despite the homeowners' attempts at efficiency improvements. The family had already upgraded to a programmable thermostat, converted to LED lighting throughout the house, and maintained their HVAC system regularly with annual tune-ups—yet summer electric bills continued climbing to $425-$475 monthly. During extreme heat waves, bills occasionally exceeded $500. The homeowners knew something was fundamentally wrong but didn't know where to start. Previous contractors had suggested replacing their 12-year-old AC system at a cost of $8,500-$11,000, but the homeowners wanted data-driven recommendations before making major investments.

Comprehensive Energy Audit Assessment: Intelligent Design's detailed whole-home energy audit revealed multiple compounding inefficiencies creating the high energy consumption. Utility bill analysis showed summer consumption averaging 2,450 kWh monthly—approximately 35% higher than comparable homes in the neighborhood. Thermal imaging revealed significant insulation deficiencies in the attic with numerous gaps and voids reducing effective R-value from the assumed R-30 to an actual R-18-R-22 in many areas. The 145°F attic was transferring enormous heat directly into living spaces. Blower door testing measured 2,850 CFM50 (cubic feet per minute at 50 pascals)—indicating the home was approximately 40% leakier than modern energy code standards and losing massive amounts of conditioned air through gaps around windows, doors, electrical penetrations, and attic access.

Critical Duct System Problems: Duct blaster testing revealed catastrophic ductwork leakage of 385 CFM25—meaning nearly 38% of conditioned air was escaping into the 145°F attic before reaching living spaces. Thermal imaging showed major leaks at supply boot connections and a completely separated flex duct run serving the master bedroom, explaining why that room was consistently 6-7 degrees warmer than the rest of the house. The HVAC system evaluation showed the 12-year-old unit was actually still functioning reasonably well at approximately 13.5 SEER effective efficiency, but was severely undersized for the home's actual cooling load when factoring in the duct leakage and insulation deficiencies. The system ran almost continuously during summer trying to overcome these inefficiencies.

Strategic Improvement Plan: Rather than immediately replacing the AC system, we recommended a phased approach prioritizing the highest-ROI improvements first. Phase 1 focused on reducing cooling load through professional Aeroseal duct sealing ($2,850) and attic insulation upgrades adding R-19 to achieve R-38+ effective insulation ($2,400). Phase 2 addressed air sealing of the building envelope targeting the largest leakage points ($850). Total investment for Phase 1 and 2: $6,100—significantly less than AC replacement. We projected these improvements would reduce cooling load by 35-40%, allowing the existing AC system to operate more efficiently and likely extending its useful life by 4-6 years before replacement becomes necessary.

Verified Results Exceeded Projections: After completing Phase 1 and 2 improvements, the results were immediate and dramatic. Summer electric bills dropped from averaging $450 monthly to $305—a 32% reduction saving approximately $145 monthly during the May-October cooling season. Annual electricity costs decreased from approximately $4,100 to $2,650—representing $1,450 in verified annual savings based on 12-month utility bill comparison. The master bedroom now maintains temperatures within 1-2 degrees of the rest of the home. The existing AC system runtime decreased by approximately 38%, reducing wear and extending expected lifespan. Post-improvement blower door testing measured 1,725 CFM50 (40% reduction in air leakage) and duct testing showed only 72 CFM25 remaining leakage (81% improvement). The $6,100 total investment will achieve complete payback in just 4.2 years through energy savings alone, with continued savings for decades. The homeowners reported, 'The audit was the best $450 we ever spent. We avoided an $10,000 AC replacement we didn't need, invested $6,000 in improvements that actually fixed our problems, and we're saving over $1,400 every year on electricity. Our house has never been more comfortable.'

Challenge: A growing family in Marana with a 3,100 sq ft two-story home faced persistent comfort problems despite investing in a brand-new high-efficiency AC system just 18 months prior. They had paid $12,500 for an 18 SEER variable-speed system specifically to improve efficiency and comfort, yet two upstairs bedrooms remained 7-9 degrees hotter than downstairs throughout summer. The family compensated by setting the thermostat to 72°F just to get upstairs bedrooms to a tolerable 79-81°F—making downstairs uncomfortably cold and driving summer bills to $385-$420 monthly despite the new efficient equipment. They had contacted the installing contractor twice, who assured them the system was 'operating normally' and suggested adding a second AC unit for upstairs at an additional $14,000-$16,000 cost. Frustrated and skeptical, they sought a third-party energy audit to understand the real problem.

Detailed Duct System Investigation: Our comprehensive energy audit quickly identified that the brand-new AC system was working perfectly—but was fighting against severely compromised ductwork the original installer had never properly evaluated. Duct blaster testing revealed extreme leakage of 468 CFM25, with duct system losing approximately 42% of conditioned air. Thermal imaging showed the primary supply trunk line serving upstairs bedrooms had multiple separated connections within second-floor chase walls—completely inaccessible without demolition. Flex duct runs in the 152°F attic showed severe UV degradation and had pulled loose from boot connections over time. Airflow measurements at upstairs bedroom registers confirmed they were receiving only 38-48% of their design airflow due to these massive leaks—the conditioned air was escaping into wall cavities and the superheated attic rather than reaching the rooms that needed it.

Root Cause Analysis: The energy audit revealed the real problem had nothing to do with AC capacity or efficiency. The home's ductwork, installed during original construction in 2006, had deteriorated significantly in Tucson's extreme attic environment. The original contractor who installed the new AC system had performed only a cursory duct inspection and never conducted leakage testing—missing the catastrophic duct failures that were the true cause of comfort problems and high bills. The new 18 SEER system was actually capable of cooling the entire home efficiently if its conditioned air could actually reach upstairs bedrooms. Thermal imaging also revealed insulation gaps around duct penetrations allowing 145°F+ attic air to infiltrate wall cavities, further contributing to upstairs heat problems.

Targeted Solution: We recommended comprehensive Aeroseal duct sealing as the most cost-effective solution to address the inaccessible leaks without demolition. The Aeroseal process seals duct systems from the inside, reaching separated connections within walls and other inaccessible areas that manual sealing cannot fix. The project took 6 hours to complete. Post-sealing testing measured 65 CFM25—an 86% reduction in duct leakage, bringing the system well within optimal performance specifications. We also rebalanced airflow to all registers and sealed attic penetrations to prevent hot air infiltration. Total project cost: $3,150.

Dramatic Comfort and Savings Improvements: The transformation was immediate. Upstairs bedrooms now maintain temperatures within 2-3 degrees of downstairs—well within acceptable variation for two-story homes. The family can set their thermostat to a comfortable 76°F and achieve consistent comfort throughout the entire house for the first time. Summer cooling bills dropped from averaging $402 monthly to $307—a 24% reduction saving approximately $95 monthly or $1,140 annually. Just as importantly, the family avoided the completely unnecessary $14,000-$16,000 second AC system installation that would have addressed the symptom rather than the cause. The $3,150 duct sealing investment will achieve payback in just 2.8 years, while the sealed ductwork is expected to last 20+ years. The homeowner stated, 'The energy audit saved us from making a $15,000 mistake. The contractor who installed our new AC never even tested the ducts. Now our entire house is comfortable, we're saving almost $100 every month, and we finally got the value from our expensive new AC system that we should have had from day one.'

Challenge: A 2,200 sq ft single-story home in Catalina Foothills built in 1998 experienced severe and worsening heat problems in specific areas despite otherwise reasonable cooling performance. The south-facing master bedroom and adjacent bathroom were unbearably hot from mid-morning through evening—often reading 84-87°F on room thermometers while the rest of the house maintained 76°F. The southwest corner living room experienced similar problems. These hot zones made portions of the home virtually unusable during summer. The homeowners had tried multiple solutions: replaced all windows with dual-pane low-E glass ($7,800), installed solar screens on south and west windows ($1,200), and even upgraded their AC system to a higher-capacity 4-ton unit ($9,200)—yet the problem persisted. Previous contractors couldn't explain the issue and suggested the homeowners 'just keep those rooms closed during summer.' Unwilling to surrender valuable living space, they requested a comprehensive energy audit to solve the mystery.

Thermal Imaging Reveals Hidden Problem: Our detailed energy audit using thermal imaging cameras immediately identified the root cause previous contractors had missed. Infrared scans of the master bedroom ceiling during afternoon heat revealed a massive 15-foot by 18-foot section with surface temperatures 18-22 degrees hotter than surrounding ceiling areas. This thermal signature indicated a complete absence of attic insulation in that zone. Further thermal imaging of the southwest living room showed similar patterns—large areas with dramatically elevated temperatures indicating missing or severely degraded insulation. When our certified auditors accessed the attic, we discovered the original builder had simply never installed insulation over approximately 35% of the home's ceiling area, including the entire master bedroom section, master bathroom, and portions of the living room. The areas that had insulation showed only R-19 fiberglass batts—well below the R-38 minimum recommended for Tucson.

Understanding the Impact: The missing insulation meant intense desert sun was heating the roof surface to 165-175°F, which then radiated directly through thin drywall into living spaces with virtually no thermal barrier. These uninsulated ceiling sections were essentially radiating heaters, transferring enormous heat loads into the home that no amount of air conditioning could overcome efficiently. The mystery was solved—the homeowners had spent $18,200 on windows, screens, and AC upgrades that treated symptoms while the actual problem (missing insulation) remained unaddressed. Blower door testing also revealed moderate air leakage of 2,150 CFM50, and duct testing showed 168 CFM25 leakage, but these were secondary issues compared to the insulation deficiency.

Comprehensive Insulation Solution: We recommended complete attic insulation remediation: installing R-30 insulation in the previously uninsulated areas and adding R-19 to existing R-19 zones to achieve R-38+ throughout the entire attic. We also recommended air sealing of ceiling penetrations before insulation installation and radiant barrier installation on the underside of the roof decking to further reduce radiant heat transfer. The insulation project took two days to complete and cost $3,850. We also recommended modest duct sealing ($1,450) to capture additional efficiency gains. Total project investment: $5,300.

Transformation and Vindication: The results were nothing short of miraculous for the homeowners. Within 24 hours of insulation installation, the master bedroom maintained consistent temperatures with the rest of the home for the first time in the home's 26-year history. Room temperature differentials dropped from 8-11 degrees to just 1-2 degrees throughout the entire house. The AC system runtime decreased dramatically—from running almost continuously during summer to cycling normally with 15-20 minute runtimes. Summer electric bills dropped from averaging $345 monthly to $245—a 29% reduction saving approximately $100 monthly or $1,200 annually. Even more importantly, the family regained full use of their master bedroom, bathroom, and living room during summer for the first time. The $5,300 insulation and duct sealing investment will achieve payback in 4.4 years—while the $18,200 previously spent on windows, screens, and AC upgrades that didn't address the real problem will never pay back through energy savings. The homeowner reflected, 'For 26 years we lived with unbearable heat in our bedroom, and after spending $18,000 trying to fix it, we were ready to give up. The energy audit found the problem in 20 minutes with a thermal camera. Now our entire house is comfortable, our bills are lower, and we finally know our builder just never finished insulating our attic. This $450 audit saved our sanity and probably saved us from spending even more money on solutions that wouldn't work.'

Professional home energy audits follow a systematic methodology ensuring no efficiency opportunity is overlooked. This comprehensive 8-step process combines advanced diagnostic testing, visual inspection, data analysis, and expert consultation to create a complete picture of your home's energy performance and a prioritized roadmap for improvements.

Effective energy audits begin before we arrive at your home. We request 12 months of utility bills to analyze consumption patterns, identify seasonal variations, and establish baseline energy use. Tucson homes typically show 40-60% higher summer consumption due to air conditioning, with patterns revealing whether your home is well-insulated or losing conditioned air through leaks and inadequate insulation. We compare your usage to similar-sized homes in your neighborhood using utility company benchmarking data, identifying whether consumption is above average (indicating efficiency problems), below average (suggesting your home performs well), or typical for your home type and size.

We ask homeowners to complete pre-audit questionnaires covering home age and construction type, square footage and number of stories, insulation type and estimated depth, HVAC system age and type, window types and age, recent upgrades or improvements, and known comfort problems or concerns. This information helps us understand your home's construction methods, prioritize audit activities based on likely problem areas, and prepare appropriate diagnostic equipment. We also request occupancy patterns—when family members are home, typical thermostat settings, rooms rarely used, and any areas with persistent comfort problems. Understanding how you use your home ensures recommendations match your lifestyle and priorities while maximizing energy savings opportunities.

Our on-site audit begins with systematic examination of your home's building envelope—the barrier between conditioned indoor space and the harsh Tucson environment. We inspect attic insulation measuring depth, R-value, coverage uniformity, and condition (settling, compression, water damage, or pest contamination). Tucson's extreme heat makes adequate attic insulation critical—we recommend R-38 to R-49 in Tucson attics, but many homes have R-19 or less. Upgrading from R-19 to R-38 can reduce cooling costs by 15-25%. We evaluate insulation around HVAC ductwork in unconditioned spaces, around penetrations for plumbing and electrical, in knee walls and bonus rooms, and in garage ceilings adjacent to living spaces.

We inspect exterior walls for insulation (when accessible through outlets or other penetrations), windows and doors for air leakage, weatherstripping condition, and thermal performance, foundation and slab edges for insulation and air sealing, and attic ventilation adequacy and function. Proper ventilation prevents moisture buildup while maintaining cooler attic temperatures. We examine exterior for cracks in stucco or siding, gaps around windows and doors, deteriorated caulking and sealants, and other penetrations allowing air infiltration or moisture intrusion. Each deficiency is photographed and documented for the final audit report with specific improvement recommendations.

HVAC systems consume 60-70% of home energy in Tucson, making thorough evaluation essential. We assess system age, type, and rated efficiency (SEER for cooling, AFUE for heating), visual condition and signs of deferred maintenance, air filter cleanliness and proper sizing, thermostat operation and programming, refrigerant charge and operating pressures (if accessible), airflow at supply registers measuring CFM delivery, return air pathways and adequacy, and overall system sizing relative to home's actual cooling load. Systems over 15 years old often operate at only 50-60% of original efficiency due to wear, refrigerant leaks, and component degradation. We identify opportunities for system upgrades, performance optimization, or right-sizing if current equipment is oversized or undersized for actual needs.

We evaluate ductwork visual condition noting damage, disconnections, or deterioration, insulation level and condition on ducts in unconditioned spaces, supply and return register placement and sizing, and obvious signs of leakage or poor connections. Visual inspection is followed by comprehensive duct blaster testing (Step 4) to quantify actual leakage. Many Tucson homes lose 25-35% of conditioned air through duct leakage—one of the highest-return efficiency improvements available. We also assess smart thermostat opportunities, zoning potential for multi-story or large homes, and air filtration/purification upgrades for improved indoor air quality.

Advanced diagnostic testing provides quantitative data that visual inspection alone cannot deliver. Thermal imaging cameras reveal heat patterns invisible to the naked eye, scanning exterior and interior walls, ceilings, and floors to identify insulation voids and gaps, air leakage paths showing as temperature differentials, moisture intrusion that appears as cooler spots, thermal bridging through framing members conducting heat, and ductwork heat loss in unconditioned spaces. Thermal imaging pinpoints exactly where homes lose conditioned air, allowing targeted improvements rather than guesswork. Common findings include uninsulated areas around windows and doors, missing insulation in knee walls and bonus rooms, and severe duct leakage visible as hot or cold spots in attics and wall cavities.

Blower door testing measures whole-house air tightness by temporarily installing a powerful fan in an exterior door, creating negative pressure inside the home, and measuring airflow required to maintain that pressure differential. Results quantify exactly how leaky your home is compared to energy efficiency standards, expressed as CFM50 (cubic feet per minute at 50 pascals pressure). We identify major leakage points during testing using smoke pencils and thermal imaging, estimate potential savings from targeted air sealing improvements, and establish baseline for post-improvement verification testing. Typical Tucson homes built before 2000 measure 2,200-3,500 CFM50 or higher—30-50% leakier than modern energy codes require. Air sealing improvements can reduce this leakage by 30-50%, cutting cooling costs by 10-20% while dramatically improving comfort and indoor air quality.

Duct blaster testing specifically measures ductwork leakage by sealing all supply registers and return grilles, pressurizing or depressurizing the duct system, and measuring airflow required to maintain test pressure. Results expressed as CFM25 quantify exactly how much conditioned air escapes through duct leaks. Industry standards recommend total duct leakage below 100 CFM25 for good performance, but we commonly find Tucson homes measuring 250-450 CFM25 or higher—indicating 25-40% of conditioned air never reaches living spaces. Professional duct sealing can reduce this leakage by 80-90%, delivering immediate 20-30% reductions in heating and cooling costs while dramatically improving room-to-room temperature consistency.

We inventory all major appliances and equipment that consume significant energy, noting age, type, and estimated efficiency compared to modern standards. Water heaters are evaluated for type (tank vs tankless vs heat pump), age, capacity, insulation, and operating efficiency. Traditional tank water heaters work harder in Tucson's heat and often waste significant energy through standby losses. Heat pump water heaters can reduce water heating costs by 50-70% compared to electric resistance tank heaters. Pool pumps, common in Tucson homes, often run unnecessarily long hours consuming 2,000-4,000 kWh annually. Variable-speed pumps with smart controls can reduce pool pump energy use by 65-75%.

Refrigerators and freezers over 15 years old consume 2-3 times more electricity than modern Energy Star models. Lighting inventory identifies opportunities for LED upgrades—modern LED bulbs use 75-80% less energy than incandescent bulbs while lasting 25 times longer. Complete home LED conversion typically costs $200-$400 and saves $150-$300 annually on electricity, paying for itself within 18-24 months. We evaluate opportunities for daylighting using natural light to reduce electric lighting needs, occupancy sensors and timers for automatic lighting control, and outdoor lighting efficiency and controls. We also assess plug loads—electronics, computers, entertainment systems, and other devices that consume energy even when off or in standby mode—identifying opportunities for smart power strips and improved energy management.

For homeowners interested in solar energy, our energy audit includes detailed solar readiness assessment ensuring you make informed decisions about renewable energy investments. We evaluate roof condition assessing age, remaining useful life, and structural integrity (installing solar on roofs needing replacement within 5-10 years is poor timing and economics). We assess roof orientation and pitch—south-facing roofs are optimal in Tucson capturing maximum year-round sun exposure, but west and east orientations also work well. North-facing roofs provide minimal solar production in our latitude. Roof pitch between 10-30 degrees works well for fixed solar arrays in Tucson.

We measure available unshaded roof area and identify obstacles requiring panel placement adjustments including skylights, plumbing vents, HVAC equipment, and satellite dishes. We analyze shading patterns from trees, buildings, or structures throughout the year using solar pathfinder technology or software modeling. Even partial shading can significantly reduce solar production, making tree trimming or selective removal an important consideration. Electrical service capacity is assessed to ensure your main panel and service can accommodate solar interconnection, or identify if panel upgrades are needed before solar installation.

Solar system sizing recommendations consider your current consumption, planned efficiency improvements from the energy audit, future usage changes (electric vehicles, pool additions, home expansions), available roof space, and budget. We provide preliminary system size estimates (kW capacity), annual production projections (kWh), percentage of consumption offset by solar, cost ranges based on current pricing, and financial analysis including federal tax credits, utility incentives, net metering benefits, and projected payback periods. This comprehensive solar evaluation ensures you understand realistic costs, production, and returns—allowing strategic planning that implements efficiency improvements first, then sizes solar appropriately based on reduced consumption. This approach maximizes solar ROI and may reduce required system size by 20-30%, saving thousands in installation costs.

Following your comprehensive home energy audit, we provide a detailed written report documenting all findings, testing results, and recommendations. The report includes current energy usage analysis with 12-month consumption patterns, comparison to similar homes, and cost breakdown by end use (cooling, heating, water heating, appliances, lighting). Diagnostic testing results document thermal imaging photos highlighting problem areas, blower door test results quantifying whole-house air leakage, duct blaster testing showing ductwork leakage rates, and baseline measurements for future comparison. Building envelope assessment details insulation conditions and R-values, air sealing opportunities, window and door performance, and ventilation adequacy.

HVAC system evaluation summarizes equipment age and efficiency, performance assessment, ductwork condition and leakage, and upgrade or maintenance needs. Appliance and equipment inventory identifies inefficient appliances, lighting upgrade opportunities, and water heater recommendations. Solar readiness evaluation (when requested) includes roof assessment, shading analysis, system sizing recommendations, and financial projections. Photos and diagrams help homeowners visualize problems and understand recommended improvements through annotated thermal images, duct system layouts, insulation deficiencies, and equipment conditions.

Each recommendation includes detailed cost estimates ranging from DIY improvements to professional installation, projected annual savings based on current utility rates and consumption, simple payback periods showing years to recoup investment through savings, and priority ranking categorizing improvements as high-priority (quick payback under 4 years, major savings potential), medium-priority (moderate payback 4-8 years, significant savings), or low-priority (longer payback over 8 years, comfort/maintenance benefits). This prioritization helps homeowners make informed decisions about which improvements to implement first, creating a phased implementation plan matching budget and priorities while delivering maximum near-term savings.

Unlike standalone energy auditors who only provide reports, Intelligent Design offers complete implementation services for every recommended improvement. We provide detailed proposals for recommended work including equipment specifications and model numbers, installation scope and timeline, labor and material costs, warranty coverage, available rebates and incentives, and financing options through approved credit programs. Our multi-trade capabilities mean one company handles HVAC system installation, duct sealing, insulation improvements, smart thermostat installation, water heater replacement, electrical service upgrades, and solar installation.

This single-source approach eliminates coordination challenges working with multiple contractors, ensures audit recommendations are properly implemented according to specifications, provides unified warranty coverage and service support, and allows us to optimize improvements across all home systems for maximum efficiency and savings. Many homeowners implement improvements in phases over 1-3 years, prioritizing highest-ROI improvements first, spreading costs across multiple budget periods, and progressively reducing energy consumption. After improvements are completed, we provide follow-up verification testing including post-improvement blower door and duct testing, utility bill analysis confirming projected savings, system performance verification, and documentation of achieved results. This closed-loop approach ensures your audit investment delivers promised savings and comfort improvements with verified, measurable results.

Not all energy audits are created equal. Understanding the different levels of assessment helps you choose the right service for your needs and budget. The three main types of residential energy audits differ significantly in scope, diagnostic testing, cost, and value delivered.

Basic walk-through assessments provide quick visual evaluation of obvious energy problems without comprehensive testing. Typical services include visual inspection of insulation and HVAC equipment, thermostat and lighting review, basic recommendations for common improvements, and general energy-saving tips. These assessments typically cost $100-$200 or may be offered free by utilities or contractors hoping to sell specific products. Limitations: Walk-through assessments cannot identify hidden problems like duct leakage, air sealing opportunities, or insulation gaps. They rely on assumptions rather than measured data and often miss the highest-return efficiency opportunities. Recommendations lack cost estimates and payback analysis needed for informed decisions.

Best For: Homeowners wanting general guidance, renters unable to make major improvements, or initial screening before deciding whether comprehensive audit is warranted. Walk-through assessments work as a starting point but rarely provide sufficient detail for strategic efficiency planning or verifying actual savings from improvements.

Standard comprehensive energy audits provide detailed assessment using diagnostic equipment to quantify energy losses and identify specific improvements. Services include complete home inspection of all energy systems, blower door testing measuring whole-house air leakage, duct blaster testing quantifying ductwork leakage, thermal imaging identifying insulation gaps and air leaks, HVAC efficiency evaluation and sizing verification, appliance and lighting assessment, utility bill analysis and consumption benchmarking, detailed written report with photos and thermal images, prioritized recommendations with cost estimates and payback periods, and solar readiness evaluation when requested. Standard audits typically cost $350-$550 depending on home size and complexity.

Value Delivered: Standard audits identify specific problems that DIY or walk-through assessments miss, use quantified data rather than assumptions, provide accurate cost-benefit analysis for informed decision-making, and establish baseline measurements for verifying improvement results. Most homeowners implementing audit recommendations achieve complete payback of audit cost within the first year through identified savings. For Tucson homes where typical efficiency improvements reduce annual costs by $800-$1,800, a $450 audit that identifies these opportunities delivers 2-4 times ROI immediately.

Best For: Homeowners serious about reducing energy costs, those planning major improvements or solar installation, homes with comfort problems or high bills relative to size/age, pre-purchase assessments for home buyers, and preparation for selling homes to maximize value. Standard comprehensive audits are the recommended choice for 90% of homeowners as they balance thorough assessment with reasonable cost.

Advanced technical audits include everything in standard audits plus sophisticated modeling, detailed engineering analysis, and specialized testing. Additional services include computer energy modeling simulating home performance, duct leakage to outside testing (separating duct leakage into conditioned vs unconditioned spaces), combustion safety testing for gas appliances, detailed HVAC load calculations and system sizing analysis, advanced building science analysis, renewable energy feasibility studies, and detailed implementation specifications for contractors. Advanced audits typically cost $750-$1,200 and take 6-10 hours to complete including modeling and report preparation.

Best For: Large or complex homes over 4,000 sq ft, historic homes requiring specialized improvements, homes undergoing major renovations, new construction design optimization, commercial properties or multi-family buildings, and situations requiring engineering-level analysis for permits or incentive programs. For most residential applications, standard comprehensive audits provide sufficient detail for effective decision-making without the additional cost of advanced technical analysis.

Strategic timing of your energy audit maximizes value and ensures you gather necessary information when you need it most. These scenarios represent ideal times to schedule comprehensive energy assessments.

Many homeowners replace HVAC systems, water heaters, or other equipment without understanding their home's actual performance needs—often installing oversized or undersized systems that waste money and fail to deliver optimal comfort. Energy audits before equipment replacement identify whether your existing system is properly sized, determine if duct sealing or insulation improvements should happen first, ensure new equipment is correctly sized for actual loads after efficiency improvements, and potentially avoid unnecessary replacements by addressing root causes of performance problems. Homeowners who audit before replacing systems often discover their existing equipment would work fine if ductwork was sealed or insulation improved—saving $8,000-$15,000 in unnecessary HVAC replacement while achieving better performance through targeted improvements.

Solar installers size systems based on your current consumption—but if your home wastes 30-40% of energy through inefficiency, your solar system will be oversized for your actual needs after implementing efficiency improvements. Energy audits before solar installation optimize efficiency first reducing total consumption, allow proper solar system sizing based on improved efficiency, potentially reduce solar system size and cost by 20-30%, and maximize solar ROI by ensuring you're not paying to generate electricity to compensate for preventable waste. The ideal sequence is audit first, implement efficiency improvements, then size solar based on reduced consumption—delivering lower total cost and better performance than installing solar on an inefficient home.

Energy audits shortly after purchasing a home help new homeowners understand their home's efficiency, identify problems before they cause comfort issues or high bills, prioritize improvement projects for renovation budgets, and establish baseline performance for future comparison. Many home buyers use audit findings to negotiate repairs or credits during purchase. Audits before selling identify cost-effective improvements that increase home value, provide documentation of efficiency features for prospective buyers, enable premium pricing for energy-efficient homes, and demonstrate transparency and quality that accelerates sales. Pearl Certification, available through qualified energy audits, can increase home value by $15,000-$30,000+ for efficiently-upgraded homes.

High energy bills relative to home size, persistent comfort problems with hot/cold rooms, excessive dust or poor indoor air quality, or inability to maintain comfortable temperatures despite properly functioning equipment all indicate efficiency problems that energy audits can diagnose and solve. Waiting to address these issues wastes hundreds of dollars monthly while reducing home livability. Energy audits quickly identify root causes—often duct leakage, insulation deficiencies, or air sealing problems—that simple thermostat adjustments or filter changes cannot fix. Homeowners addressing comfort and efficiency problems through audit-guided improvements typically recoup audit costs within 3-8 months through reduced bills and improved quality of life.

Receiving your comprehensive energy audit report is just the beginning—strategic implementation of recommendations determines whether you achieve projected savings and comfort improvements. This guide helps you prioritize improvements and develop an implementation strategy maximizing return on investment while matching your budget and goals.

Energy audit recommendations are typically categorized by priority based on payback period and savings potential. High-priority improvements with payback under 3-4 years should be implemented first as they deliver immediate, significant savings that can fund additional improvements. Common high-priority items include duct sealing (typical 2-4 year payback, 20-30% savings), air sealing around windows, doors, and penetrations (typical 2-3 year payback, 10-15% savings), attic insulation upgrades (typical 3-5 year payback, 15-25% savings), and smart thermostat installation (typical 1-2 year payback, 8-12% savings). These improvements often cost $1,500-$5,000 total but deliver $600-$1,400 annual savings—achieving payback within 2-4 years with continued savings for decades.

Medium-priority improvements with payback periods of 4-8 years provide significant savings but require larger investments or deliver more modest returns. Examples include HVAC system replacement with high-efficiency equipment (typical 6-10 year payback), water heater upgrades to heat pump or tankless models (typical 5-8 year payback), window replacements with low-E glass (typical 8-12 year payback), and pool pump upgrades to variable-speed models (typical 4-6 year payback). These improvements make sense when equipment is near end-of-life, when combined with other projects for cost efficiency, or when comfort/reliability benefits justify longer payback periods.

Low-priority improvements with payback over 8-10 years or primarily delivering comfort/aesthetics rather than energy savings should be implemented last or only when other factors justify investment. Examples include complete window replacement when existing windows function adequately, extensive landscaping for shade, solar window screens (minimal cooling savings in well-insulated homes), and decorative outdoor lighting upgrades. These may be worthwhile for other reasons but aren't justified by energy savings alone.

Most homeowners implement efficiency improvements in phases over 1-3 years rather than all at once, spreading costs across multiple budget periods while prioritizing highest-return improvements first. Phase 1 (Year 1) typically focuses on duct sealing and air sealing, attic insulation upgrades, smart thermostat installation, and LED lighting conversion. Total investment: $3,000-$6,000. Projected annual savings: $800-$1,400. These improvements deliver immediate comfort and cost reductions while reducing cooling load on existing HVAC equipment—often extending equipment life by 3-5 years and making HVAC replacement unnecessary or allowing downsizing when replacement is eventually needed.

Phase 2 (Year 2) addresses HVAC system replacement (if needed based on age/condition), water heater upgrades, pool pump upgrades, or other equipment improvements. Total investment: $5,000-$12,000 depending on equipment needs. Additional annual savings: $400-$800 beyond Phase 1 savings. By implementing Phase 1 first, Phase 2 HVAC systems can often be downsized by 10-20% based on reduced cooling load, saving $1,200-$2,500 on equipment costs while delivering better performance and efficiency.

Phase 3 (Year 3) considers solar installation after implementing efficiency improvements and reducing consumption. Solar system sized for improved efficiency baseline is 20-30% smaller than systems sized on wasteful consumption—saving $5,000-$10,000 on solar installation while delivering better ROI. Phase 3 may also include lower-priority improvements like windows, advanced air quality systems, or comfort enhancements justified by cumulative savings from earlier phases.

Strategic use of available rebates, tax credits, and financing maximizes affordability of efficiency improvements. Utility rebates from Tucson Electric Power and Sulphur Springs Valley Electric offer rebates for HVAC upgrades ($100-$800 depending on efficiency), insulation improvements ($50-$300), water heater upgrades ($100-$500), smart thermostats ($50-$100), and pool pump replacements ($100-$400). Federal tax credits provide 30% of cost (up to specified limits) for qualifying HVAC systems, insulation, air sealing, windows, and solar installation. State and local incentives occasionally offer additional rebates for specific equipment or improvements. We help homeowners identify and apply for all applicable incentives, reducing net costs by 15-35% for most projects.

Financing options through approved credit programs allow homeowners to implement improvements immediately while paying over time—often with monthly loan payments lower than monthly energy savings, creating positive cash flow from day one. Flexible financing with terms from 12-120 months, competitive rates, and same-as-cash promotional periods make efficiency improvements accessible even for homeowners without available cash reserves. Many customers finance Phase 1 improvements, use energy savings to pay down loans quickly, then finance Phase 2 with even better cash flow due to cumulative savings from earlier improvements.

Professional comprehensive energy audits typically cost $350-$550 in the Tucson area depending on home size and complexity. Standard 1,500-2,500 sq ft single-story homes typically cost $395-$450 including full diagnostic testing, thermal imaging, blower door and duct testing, detailed written report, and solar readiness evaluation. Larger homes 2,500-4,000 sq ft or two-story homes requiring additional time typically cost $475-$550. Homes over 4,000 sq ft or requiring advanced analysis may cost $600-$750. Many companies, including Intelligent Design, apply audit fees toward implemented improvements—meaning if you proceed with recommended duct sealing, HVAC upgrades, insulation, or other services, the audit cost is credited toward project costs. This approach makes audits essentially free for homeowners who implement recommendations.

What's Included in Professional Audits: Comprehensive energy audits include 3-5 hours of on-site inspection and testing, 1-2 hours of data analysis and report preparation, detailed written report with photos and thermal images, prioritized recommendations with cost estimates, payback analysis for each improvement, solar readiness evaluation when requested, utility bill analysis and benchmarking, and post-audit consultation to review findings and answer questions. This comprehensive service delivers actionable information homeowners can use immediately to make informed efficiency decisions.

Energy audits identify improvements reducing annual energy costs by 25-40% for typical Tucson homes. Households currently spending $2,400 annually on electricity can expect to reduce costs to $1,450-$1,800 through strategic efficiency improvements—saving $600-$950 per year. Homeowners spending $3,000 annually often reduce costs to $1,800-$2,250—saving $750-$1,200 annually. These savings continue every year for the life of the improvements, compounding to enormous lifetime value. A homeowner saving $800 annually over 20 years keeps $16,000 that would otherwise go to utility companies—more than covering all improvement costs while enjoying enhanced comfort and home value.

Savings by Improvement Type: Duct sealing typically reduces cooling costs by 20-30% for homes with significant duct leakage, saving $400-$750 annually. Attic insulation upgrades from R-19 to R-38+ reduce cooling costs by 15-25%, saving $300-$625 annually. Air sealing reducing whole-house leakage by 35-50% saves 10-15%, typically $200-$375 annually. HVAC upgrades from 10 SEER to 16+ SEER reduce cooling costs by 35-40%, saving $400-$850 annually. Smart thermostats with optimized programming save 8-12%, typically $160-$300 annually. Water heater upgrades to heat pump models save 50-70% on water heating, typically $250-$450 annually. Cumulative savings from implementing multiple improvements often exceed projections as improvements work synergistically—sealed ducts allow smaller, more efficient HVAC systems; better insulation reduces HVAC runtime; air sealing improves indoor air quality reducing filtration costs.

Energy efficiency improvements deliver strong ROI through multiple value channels. Direct energy savings provide immediate monthly cash flow improvements with payback periods of 2-8 years for most high-priority improvements. Extended equipment life from reduced runtime and proper sizing saves thousands in premature replacement costs—sealed ducts and better insulation can extend AC system life by 3-5 years, worth $2,500-$5,000. Improved home value from documented efficiency upgrades can increase resale value by $15,000-$30,000+ for homes with Pearl Certification or verified efficiency improvements. Energy-efficient homes sell faster and command premium prices in competitive markets.

Avoided future costs from addressing problems before they worsen prevents emergency repairs, catastrophic equipment failures, and comfort issues that reduce home livability. Comfort and quality of life improvements from consistent temperatures, improved air quality, and reduced noise have value beyond energy savings—making homes more enjoyable and healthier for families. Environmental benefits from reduced consumption lower carbon footprint and support sustainability goals important to many homeowners. When considering all value channels together, comprehensive efficiency improvements typically deliver total ROI of 35-65% over 10 years—better returns than most investment alternatives with the added benefit of daily comfort improvements and insulation from rising energy costs.

Choosing the right company for your home energy audit ensures you receive accurate assessment, honest recommendations, and expert implementation support. Intelligent Design offers unique advantages that deliver superior value and results compared to standalone auditors or companies with limited implementation capabilities.

As a comprehensive HVAC, plumbing, electrical, and solar company, Intelligent Design can implement every recommendation from your energy audit using our own certified technicians. This eliminates the coordination challenges, scheduling delays, and potential miscommunication when working with multiple contractors. One company handles duct sealing, insulation, HVAC upgrades, water heater replacement, electrical panel upgrades, solar installation, and all related work—ensuring recommendations are properly implemented and all improvements work together optimally. We stand behind all work with unified warranty coverage and responsive service support.

Since 1979, Intelligent Design has served over 85,000 Tucson-area families, developing deep expertise in desert climate efficiency challenges. Our certified auditors understand how extreme heat, intense UV radiation, temperature swings, and low humidity affect home energy performance differently than moderate climates. We know which improvements work best in Tucson, which materials hold up to our harsh conditions, and how to optimize systems for reliable performance in our demanding environment. This regional expertise ensures recommendations are proven effective for Southern Arizona rather than generic advice that may not work well in desert conditions.

Our 4.97-star Google rating from over 23,000 verified reviews represents real customer experiences and satisfaction—the highest rating of any HVAC and energy efficiency company in Southern Arizona. We've maintained BBB A+ accreditation since 1979 and earned Best of Tucson awards for 6 consecutive years (2019-2024). This track record demonstrates consistent delivery of quality service, honest communication, and reliable results that keep customers satisfied long after projects are completed. When investing in efficiency improvements that will impact your home for decades, you're choosing the company your neighbors trust.

Proper preparation ensures you get maximum value from your professional energy audit. Following these preparation steps helps auditors work efficiently and ensures they can access all necessary areas while gathering accurate information about your home's energy performance.

Collect 12 months of utility bills showing electricity and gas consumption if applicable. Digital copies from utility company websites work perfectly and often provide more detailed usage data than paper bills. Organize any home improvement records documenting HVAC installations, insulation upgrades, window replacements, or other efficiency improvements. These records help auditors understand what work has been done and identify remaining opportunities. If your home was built recently, gather builder specifications showing insulation levels, HVAC equipment details, and construction methods. This information saves time and helps auditors focus on areas most likely to have problems.

Prepare a list of known comfort problems or concerns including rooms that are too hot or cold, areas with excessive dust, moisture or mold issues, drafts near windows or doors, and any unusual odors or air quality concerns. Document recent utility bill increases that seem unexplained by rate changes or weather patterns. Note any planned renovations or changes such as room additions, pool installations, electric vehicle charging needs, or planned solar installation. This information helps auditors provide recommendations aligned with your future plans rather than just current conditions.

Energy auditors need access to all areas where energy systems are located or where testing will be performed. Clear attic access by moving any items blocking attic hatches or pull-down stairs. Auditors must access attics to inspect insulation, ductwork, and perform thermal imaging. Ensure crawlspace access if your home has crawlspaces where ducts, plumbing, or HVAC equipment are located. Clear areas around HVAC equipment including indoor air handlers, outdoor condensers, furnaces, and water heaters. Auditors need clear access to inspect, photograph, and test this equipment.

Unlock and provide access to all rooms including storage rooms, garages, utility rooms, and bonus spaces. Auditors must access all conditioned and semi-conditioned spaces to perform blower door testing and measure airflow at registers. Move vehicles from garages if you have garage doors that will be used during blower door testing. The test requires temporarily sealing exterior doors and creating controlled pressure differentials. Secure pets in a safe area away from testing zones. Blower door testing and thermal imaging work best without interference from curious pets, and some testing equipment makes unfamiliar sounds that may stress animals.

Multiple rebate programs and tax incentives significantly reduce the net cost of energy efficiency improvements, improving payback periods and return on investment. Understanding available incentives ensures you maximize financial benefits when implementing audit recommendations.

Tucson Electric Power (TEP) offers substantial rebates for residential energy efficiency improvements. HVAC system rebates provide $100-$800 depending on equipment efficiency—systems with 16+ SEER cooling efficiency and 9.5+ HSPF heating efficiency qualify for maximum rebates. Recent programs have offered $300-$500 for qualifying central air conditioners and $400-$800 for heat pump systems. Smart thermostat rebates provide $50-$100 per qualifying thermostat when installed with professional smart thermostat installation. These devices typically save 8-12% on heating and cooling costs through optimized scheduling and learning algorithms.

Water heater rebates offer $100-$500 depending on technology—heat pump water heaters qualify for maximum rebates while high-efficiency tankless units receive moderate rebates. Pool pump rebates provide $100-$400 for variable-speed pool pumps replacing single-speed models, recognizing that pool pumps consume 2,000-4,000 kWh annually in typical Tucson pools. Insulation rebates occasionally available offer $0.10-$0.15 per square foot for attic insulation upgrades meeting minimum R-value standards. Rebate programs change periodically, so we verify current availability and help homeowners submit applications ensuring you receive all available incentives.

The Inflation Reduction Act of 2022 extended and enhanced federal tax credits for residential energy efficiency improvements through 2032. HVAC equipment tax credits provide 30% of cost (up to $600 annually for individual items, $1,200 annual maximum for combined improvements) for qualifying high-efficiency systems including central air conditioners and heat pumps with 16+ SEER2 rating, furnaces with 97+ AFUE rating, and qualifying heat pump water heaters. Insulation and air sealing tax credits provide 30% of cost (up to $1,200 annually) for improvements meeting Energy Star standards including attic, wall, and floor insulation upgrades and comprehensive air sealing reducing measured infiltration.

Home energy audit tax credits provide up to $150 credit for qualified home energy audits, effectively making professional audits nearly free when combined with TEP rebates that often cover partial audit costs. Heat pump water heater tax credits provide 30% of cost (up to $2,000) for qualifying systems—substantially higher limits than standard efficiency improvements. Solar installation tax credits provide 30% of total system cost with no upper limit for residential solar photovoltaic systems, making solar dramatically more affordable when combined with efficiency improvements reducing required system size. These federal credits combine with utility rebates, potentially reducing net improvement costs by 30-50% for comprehensive efficiency upgrades.

Strategic timing and bundling of improvements maximizes available incentives. Combine improvements in single tax year to maximize annual tax credit limits—implementing multiple qualifying improvements in one year allows you to claim up to $1,200 annually for efficiency improvements plus separate credits for heat pump water heaters ($2,000) and solar systems (30% unlimited). Pre-purchase utility rebate reservations ensure rebate funding is available before purchasing equipment, as utility rebate programs sometimes have limited annual budgets that exhaust mid-year.

Maintain documentation for tax credits including manufacturer certification statements showing qualifying efficiency ratings, itemized invoices showing equipment and installation costs separated, dated proof of installation, and energy audit reports documenting baseline conditions and improvements. Work with qualified contractors like Intelligent Design who understand rebate requirements, ensure installed equipment meets qualifying specifications, and provide proper documentation for rebate applications and tax credit claims. We handle rebate application paperwork for our customers and provide all documentation needed for federal tax credit claims, eliminating administrative burden while ensuring you receive maximum available incentives.

Comprehensive energy audits typically require 3-5 hours for standard homes (1,500-2,500 sq ft) and 4-6 hours for larger homes (2,500-4,000 sq ft). The time includes visual inspection of all energy systems, thermal imaging of walls and ceilings, blower door testing measuring whole-house air leakage, duct blaster testing quantifying ductwork leakage, HVAC equipment evaluation, appliance inventory, and consultation discussing findings and recommendations. More complex homes with multiple HVAC zones, finished basements, or extensive systems may require additional time. We schedule audits when convenient for homeowners and work efficiently to minimize disruption while ensuring thorough evaluation.

Professional comprehensive energy audits using advanced diagnostic equipment identify 90-95% of significant energy efficiency problems in typical homes. Thermal imaging reveals hidden insulation gaps and air leakage paths invisible to visual inspection alone. Blower door testing quantifies overall air tightness and helps locate major leakage points. Duct testing measures actual duct system leakage rather than relying on assumptions. The combination of diagnostic testing and experienced auditor evaluation catches problems that basic visual inspections miss. However, some issues like intermittent equipment problems, behavior-related consumption patterns, or problems requiring invasive inspection may not be identified during standard audits. Advanced technical audits with computer modeling and additional testing can identify additional opportunities but may not be cost-effective for most residential applications.

Before HVAC replacement is strongly recommended as audits often reveal that existing systems would work fine if ductwork was sealed or insulation improved. Many homeowners spend $8,000-$15,000 replacing HVAC equipment when $3,000-$6,000 in duct sealing and insulation would solve performance problems while extending existing equipment life by 4-6 years. Audits also ensure proper system sizing for actual cooling loads after efficiency improvements—many homes can downsize by 10-20% when ducts are sealed and insulation upgraded, saving $1,200-$2,500 on equipment costs while delivering better performance. If your existing system is failing and must be replaced immediately, audit before replacement when possible or immediately after installation to optimize ductwork and building envelope for new equipment efficiency.