Trusted Home Energy Audit for Canyon Lake Homeowners
A professional Canyon Lake Home Energy Audit typically costs between $350 and $850 depending on home size and test scope, and most audits are completed in 3 to 5 hours with same-day scheduling available. At Topside Attic Insulation Canyon Lake, we’ve performed building-envelope diagnostics on homes throughout the Hill Country since 2016, and we publish before-and-after blower-door numbers on every job so you can verify the result in a single figure. Call (737) 227-6219 to book your audit; a live person answers 24/7, and you’ll receive a written price before any work starts.
Canyon Lake sits in a tricky spot for energy performance. The combination of Texas heat, Hill Country temperature swings, and older construction in neighborhoods like Canyon Lake Hills or Startzville means air leaks and insulation gaps cost homeowners real money every month. We’ve audited homes near the lake that were losing 35% of conditioned air through the attic alone, and the owners had no idea until the blower-door test showed the number. Our process follows the Haven Standard: flat price, written scope, documented photo record, and a 365-Day Done Right Promise on all work.
Wes Okafor leads our team, and every technician is background-checked and uniformed. You get a named technician, a text when they’re on the way, and a full report with thermal images, blower-door readings, and a prioritized repair list before we leave.
What Our Home Energy Audit Service Includes
Blower Door Test
A blower-door test is a pressurization reading that shows, in one number, how much air your building envelope is losing. We depressurize your home with a calibrated fan mounted in an exterior door, then measure the airflow required to maintain a 50-pascal pressure difference, expressed as CFM50. In Canyon Lake, we regularly see readings between 3,500 and 6,000 CFM50 on homes built before 2010, which translates to complete air replacement every 20 to 30 minutes under peak load conditions. After air sealing, we run the test again and publish both numbers so you can see the exact reduction. Most homeowners in Canyon Lake see a 30% to 50% improvement after proper sealing.
You’ll want this test if your energy bills spike during summer cooling season, if rooms near the lake side of the house stay uncomfortable, or if you’re planning insulation upgrades and need to know whether the attic floor is leaking first. We never recommend adding insulation over an unsealed attic; the blower-door test tells us whether sealing needs to happen first.
At Topside Attic Insulation Canyon Lake, we use a Retrotec or Minneapolis Blower Door system calibrated annually. The test takes 45 minutes to an hour, and you receive the CFM50 reading, the equivalent air changes per hour at 50 pascals (ACH50), and a leakage-location summary with photos.

Thermal Imaging Inspection
Thermal imaging, or infrared thermography, uses a FLIR camera to visualize surface temperature differences that indicate missing insulation, air leaks, or moisture intrusion. During a Canyon Lake audit, we scan walls, ceilings, and ductwork after establishing a minimum 18-degree temperature difference between indoors and outdoors, which is easy to achieve on most mornings even in mild weather. The camera doesn’t see through walls; it sees the thermal signature of what’s happening behind them. A dark blue streak on a cathedral ceiling in a Canyon Lake Hills home, for instance, usually means a missing insulation batt or a thermal bypass at a framing intersection.
Schedule thermal imaging if you’ve noticed persistent cold spots, if your HVAC runs constantly without reaching setpoint, or if you’re buying a home and want to verify the seller’s claims about recent insulation upgrades. We’ve caught cases where new blown-in fiberglass was installed over old, compressed material, creating a void that looked fine from the attic but read as a 15-degree surface temperature drop on the ceiling below.
Our inspection includes full-resolution thermal images with annotations, delivered as part of your documented photo record. We flag moisture anomalies for follow-up, since thermal bridging and air leaks in Canyon Lake’s humid seasons can lead to condensation and mold risk in wall cavities.

Insulation Inspection
An insulation inspection assesses the type, depth, condition, and installation quality of existing thermal barriers in your attic, walls, and crawl spaces. In Canyon Lake, we commonly find original fiberglass batts in homes from the 1970s and 1980s, often displaced by wind, compressed by storage traffic, or installed with gaps at the eaves that defeat the R-value on the label. R-value measures resistance to heat flow; a batt rated R-30 performs like R-15 if it’s compressed or has a 2-inch gap along the top plate.
You need this inspection if your home was built before 2012, if you’ve had rodent activity in the attic, or if you’re comparing your energy bills to neighbors with similar homes and seeing a 25% or higher difference. We’ve audited homes in Timberwood Park where the attic had multiple insulation types layered by different contractors over decades, creating thermal reversals and moisture traps that only a physical inspection reveals.
We document insulation depth at multiple points, identify compression or displacement, check for proper ventilation baffles at soffits, and note any signs of past water intrusion or pest damage. If removal and replacement are needed, we specify the exact product, whether that’s Owens Corning blown-in fiberglass, Knauf EcoFill, or GreenFiber cellulose, and we explain why that choice fits your home’s construction and your budget.

Duct Leakage Test
A duct leakage test pressurizes your HVAC duct system to measure how much conditioned air escapes into unconditioned spaces like the attic or crawl space. We seal the registers and use a Duct Blaster fan to apply 25 pascals of pressure, then read the airflow required to maintain that pressure. In Texas, the IRC requires new duct systems to leak no more than 4% of system airflow; we regularly test existing Canyon Lake homes showing 20% to 40% leakage, which means you’re paying to cool your attic.
Request this test if your upstairs rooms never reach temperature, if you find dust accumulation near ceiling vents, or if your HVAC contractor has suggested a larger unit without checking whether the ducts can deliver. We’ve seen homeowners in Selma and Cibolo quoted for 4-ton replacements when a $1,200 duct-sealing job would have solved the comfort problem.
Our test protocol follows ANSI/ACCA 12 QH-2014 standards. You receive the total leakage CFM25, the leakage-to-outside figure, and a register-by-register airflow balance check. If sealing is warranted, we specify mastic-based repair, not tape, because tape fails in attic heat; we use materials from Johns Manville or Knauf where supplemental insulation is needed after sealing.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Home Energy Audit

We’ve worked extensively with Owens Corning systems, particularly their AttiCat blown-in fiberglass and ProCat loose-fill products, which we encounter in many Canyon Lake homes from the 2000s and 2010s. We know the density requirements and the common installation errors, like insufficient depth at the eaves or failure to install proper baffling, and we can tell you whether your existing Owens Corning installation is performing to spec or needs correction.
Knauf insulation products, including their EcoFill blown-in fiberglass and Jet Stream MAX, are another frequent find in our service area. We’ve serviced hundreds of homes with Knauf installations and stock compatible materials for repairs or upgrades. GreenFiber cellulose, made from recycled paper with borate fire retardant, appears often in older Canyon Lake homes and in retrofits where homeowners prioritized sound dampening and higher R-value per inch. We understand cellulose’s settling characteristics and moisture management requirements, which differ significantly from fiberglass.
Whether you have Owens Corning, Knauf, GreenFiber, or any other make, we can help. Our audit evaluates performance, not brand loyalty, and we’ll recommend the right material for your specific building envelope condition.
Before
AfterSigns You Need Home Energy Audit Right Now
- Your summer electric bill exceeds $300 for a home under 2,500 square feet. In Canyon Lake, where summer design temperatures hit 100°F and humidity lingers, oversized bills often trace to air leakage and duct losses rather than HVAC equipment failure. We’ve audited homes where the unit was properly sized but delivering 30% of its output to the attic.
- One room stays 5 to 10 degrees different from the thermostat reading. Temperature stratification usually indicates duct imbalance, missing insulation, or a thermal bypass at a kneewall or cantilever. In lake-adjacent homes, wind exposure compounds the problem by driving air through framing gaps.
- You smell attic or crawl space odors when the HVAC runs. This means your duct system is pulling air from unconditioned spaces and distributing it through your living area. It’s an indoor air quality issue, not just an efficiency problem, and it requires immediate duct leakage testing.
- Your insulation is visibly dirty or discolored. Dark streaks on attic insulation are dust filtration marks, proving that air is moving through the material rather than across it. Clean insulation with dirty spots at the edges is a textbook sign of bypass leakage at top plates and electrical penetrations.
- You’re planning a major insulation upgrade without a baseline measurement. Spending $3,000 to $8,000 on new insulation without knowing your current air leakage rate is guesswork. The blower-door test establishes the starting point and validates the result, so you know whether the investment actually changed your home’s performance.
Our Home Energy Audit Process - Step by Step

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Schedule and confirm. Call (737) 227-6219 or text us; a live person answers 24/7. We confirm your address in Canyon Lake, ask about your primary concern (high bills, comfort complaints, pre-purchase verification), and schedule a 4-hour window. You receive a written price before we arrive, under Haven Standard Clause 1, with no deposit required.
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Arrival and walkthrough. Your named technician arrives in a marked vehicle, texts you 15 minutes out, and conducts a brief interview about your home’s history, recent energy bills, and any known issues. We review prior insulation work, HVAC maintenance records, and any moisture or pest events. This context shapes which tests we prioritize.
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Diagnostic testing. We perform the blower-door test first to establish baseline envelope leakage, then run thermal imaging while the house is depressurized to make leaks visible. Insulation inspection follows in the attic and any accessible crawl spaces. If duct leakage is suspected, we seal registers and run the Duct Blaster. Total testing time is 2.5 to 3.5 hours for a typical single-family home.
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Documentation and report. Before we leave, you receive a Documented Photo Record including thermal images, blower-door readings (CFM50 and ACH50), insulation depth measurements, and duct leakage CFM25 if tested. The report includes a prioritized repair list with estimated impact and pricing for each item.
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Review and next steps. We sit down with you, explain the findings in plain language, and answer questions. There’s no pressure to book repairs immediately. If you bring us a competing quote for any recommended work, we provide a Free Second Opinion and read it with you line by line. The 365-Day Done Right Promise applies to all work we perform.
How Much Does Home Energy Audit Cost in Canyon Lake?
A standard home energy audit for a 1,500 to 2,500 square foot home in Canyon Lake typically runs $350 to $550, and you can read more about how much Home Energy Audit costs on our pricing page. This includes the blower-door test, thermal imaging inspection, attic insulation inspection, and a written report with photos. Larger homes between 2,500 and 4,000 square feet, or homes with multiple HVAC zones, generally fall in the $550 to $750 range due to extended testing time and additional register scanning. A full audit with duct leakage testing added usually runs $650 to $850, depending on system accessibility and the number of air handlers.
Several factors affect where you land in these ranges. Homes with complex rooflines, multiple attic accesses, or finished attics require more thermal imaging time and more blower-door setup adjustments. Crawl space encapsulation inspections add 30 to 60 minutes if we need to evaluate vapor barrier condition and subfloor insulation. Travel beyond standard service radius for remote Canyon Lake properties may apply; most homes in the city limits and nearby Bulverde or New Braunfels areas incur no travel charge.
To avoid overpaying, verify what’s included in any quoted price. Some providers offer a “cheap energy audit” at $199 that consists of a visual walkthrough and a generic report with no diagnostic testing. We don’t perform those; without a blower-door number, you have no baseline and no way to verify improvement. Our price includes calibrated equipment, a trained technician, and the documented record you take with you.
Every estimate is free and carries no obligation. We’ll discuss your home’s specifics by phone, give you a firm price range, and schedule only when you’re ready. Under the Haven Standard, the written price you receive before work starts is the price you pay; no surprises, no upsells during the audit.
Home Energy Audit Near Canyon Lake - Our Service Area

We perform home energy audits throughout Canyon Lake and surrounding communities including Bulverde, New Braunfels, Timberwood Park, Selma, Cibolo, Schertz, Universal City, Live Oak, Fair Oaks Ranch, Converse, and Windcrest. Most Canyon Lake appointments are available within 2 to 3 business days; same-day service is often possible for urgent comfort or indoor air quality concerns. Response to Bulverde and Timberwood Park is typically next-day; New Braunfels and Cibolo usually within 48 hours. If you’re unsure whether your address falls in our service area, call (737) 227-6219 and we’ll confirm immediately.
Serving Canyon Lake, TX - Our Local Coverage Area
We’re based in the Canyon Lake area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Home Energy Audit in Canyon Lake

A home energy audit is a systematic evaluation of your building’s thermal envelope, HVAC distribution, and moisture management using calibrated diagnostic tools. At Topside Attic Insulation Canyon Lake, our standard Home Energy Audit in New Braunfels includes a blower-door test, thermal imaging, insulation inspection, and optional duct leakage testing, all documented with photos and numerical readings you keep. The result is a prioritized list of repairs with estimated savings impact, not a vague recommendation to “add more insulation.” Call (737) 227-6219 to schedule; estimates are free.
A complete audit takes 3 to 5 hours depending on home size, accessibility, and which tests are performed. A 1,800 square foot single-story home with one attic access typically finishes in 3 hours; a two-story with crawl space, multiple zones, and duct leakage testing may take 5. We schedule 4-hour windows and communicate if we need more time based on what we find. You’ll know your technician’s ETA by text, and we don’t leave until you’ve reviewed the findings.
Most Canyon Lake homeowners pay between $350 and $750 for a standard audit, with full diagnostics including duct testing at the higher end. The exact price depends on square footage, number of HVAC systems, and whether crawl space inspection is needed. We provide a written price before scheduling, and there’s no charge for the initial estimate consultation. Call (737) 227-6219 for your specific quote.
Yes. We’ve audited and upgraded hundreds of homes with Owens Corning AttiCat, ProCat, and QuietZone installations throughout the Canyon Lake area. We evaluate whether existing Owens Corning products are performing to manufacturer spec and can specify compatible materials for repairs or upgrades without locking you into a single brand. Bring us any prior contractor’s proposal for a Free Second Opinion.
We don’t classify audits as emergencies, but we do prioritize same-day response for urgent comfort or indoor air quality concerns, such as suspected carbon monoxide backdrafting, visible mold linked to thermal bridging, or sudden spikes in energy use indicating possible duct collapse. A live person answers (737) 227-6219 24/7, and we’ll triage your situation to determine whether an audit, an HVAC contractor, or another specialist is the right first call.
The audit itself is a diagnostic service, so warranty applies to any repair work we perform afterward. All completed work carries our 365-Day Done Right Promise: if it’s not done right, we make it right, backed by a written scope and written warranty delivered before anyone starts. Haven Standard Clause 1 requires the written price, scope, and warranty in your hand before tools touch your home. The documented photo record from your audit becomes the baseline if we perform subsequent work.
Close all windows and exterior doors at least 4 hours before arrival, set your thermostat to normal occupied settings, and gather 12 months of electric and gas bills if available. Don’t close interior doors or adjust dampers; we need normal airflow patterns for accurate testing. If you have fireplaces, ensure they’re cool with dampers closed, and remove ashes if possible. Pets should be secured, as the blower-door fan noise can disturb them. Your technician will confirm these steps when scheduling.
Schedule Your Home Energy Audit Service in Canyon Lake Today
Call (737) 227-6219 now to book your Home Energy Audit - Bulverde or Canyon Lake visit. A live person answers 24/7, and you’ll receive a written price before any work starts under Haven Standard Clause 1. Whether your bills are climbing, one room won’t stay comfortable, or you’re verifying a home purchase, we’ll give you the numbers, the photos, and the prioritized plan to fix it. Estimates are free, and there’s no obligation to proceed with repairs. Text or call today.
Written by Wes Okafor, Owner at Topside Attic Insulation Canyon Lake, serving Canyon Lake since 2016.