CertainTeed Home Energy Audit in San Antonio: What to Know First
We provide independent CertainTeed home energy audits in San Antonio, typically completed in two to three hours with a full written report handed to you before we leave. Our audits run $199 to $449 depending on home size and how many tests you want, and that fee is credited back if you hire us for the insulation or air sealing work we recommend. If you own a San Antonio home with CertainTeed insulation or CertainTeed building products and your energy bills keep climbing, call (866) 751-4428 and we’ll schedule a time that works.
This page is for homeowners who already have CertainTeed products in their house and want straight answers about whether those products are still doing their job. We are an independent CertainTeed service provider, which means we tell you the truth about what’s working and what isn’t without any manufacturer spin.
How CertainTeed Products Fail and How We Fix Them
CertainTeed makes solid insulation products, but twenty-plus years of crawling through San Antonio attics has shown us exactly where they break down in this climate. Here are the failure modes we see most often.
- CertainTeed InsulSafe blown-in fiberglass settling in older homes. InsulSafe was a popular CertainTeed blow-in product installed throughout San Antonio subdivisions in the 1990s and early 2000s. In Alamo Heights and Terrell Hills attics, we regularly find it has settled from R-30 down to R-13 or worse. Settled InsulSafe loses its air-trapping loft, which means heat pours into the house from the attic in August. We remove or top it off depending on condition, and the blower door test before and after shows the exact difference.
- CertainTeed DryRight fiberglass batts losing R-value from moisture exposure. DryRight is designed to resist moisture, but San Antonio’s humidity plus a small roof leak turns those batts into dense, flattened mats. We see this in Leon Valley and Castle Hills homes where attic ventilation isn’t adequate. A thermal imaging scan shows the cold spots where wet batts sit against the ceiling, and our fix is removal, air sealing, and reinstallation with proper baffles so it doesn’t happen again.
- CertainTeed MemBrain smart vapor retarder installed on the wrong side of the wall assembly. MemBrain is a genuinely good product when it’s installed correctly, but we’ve audited homes in Stone Oak where a previous contractor put it on the exterior side of the wall cavity. In a cooling-dominated climate like San Antonio, that pulls moisture into the wall cavity instead of letting it dry to the interior. The thermal camera picks up the condensation pattern, and we correct the assembly during the wall insulation portion of the audit.
- Air barrier gaps around CertainTeed DryRight or Optima board edges. The most common CertainTeed-related energy loss isn’t the product failing, it’s the installation around it. In older San Antonio homes near McCreless Mall and Brooks, we find half-inch gaps between board edges and framing studs that add up to the equivalent of a basketball-sized hole in the wall. Our duct leakage test and blower door test quantify it, then we seal the gaps with foam and mastic before re-testing to show the improvement.
- CertainTeed duct wrap delaminating in high-heat attics. CertainTeed’s fiberglass duct wrap has a foil facing that degrades in a San Antonio attic that hits 140 degrees in July. We see delaminated wrap in houses north of Loop 1604 all the time. The ducts then sweat, the wrap sags, and conditioned air warms before it reaches the register. During the audit we inspect every accessible duct run and report exactly how much conditioned air you’re losing.
Our CertainTeed Home Energy Audit Process
Here’s what happens when you call us for a CertainTeed home energy audit in San Antonio, from the first phone call to the final report.
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Call and talk to a person. We answer the phone live, 24/7. Tell us your home’s age, square footage, and what’s bothering you, and we’ll schedule the audit at a time that works for you. No trip charge inside the service county.
- 2
We walk the house with you. Our uniformed, background-checked technician arrives on time and does a full visual inspection of the attic, walls, crawl space if you have one, and ductwork. We look for CertainTeed-specific issues like InsulSafe settling, DryRight moisture damage, and MemBrain placement problems.
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We run the diagnostics. We set up the blower door test to measure whole-house air leakage, then run a thermal imaging inspection to find exactly where heat is entering and conditioned air is escaping. We also perform a duct leakage test if your home has a forced-air system.
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We explain what we found in plain English. No jargon, no scare tactics. We show you the thermal images and the blower door numbers, and we tell you what matters and what can wait. If it’s not worth fixing, we say so.
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We give you a written report with exact pricing. You get a line-item report showing what needs attention, what it costs, and what you can expect to save. If you have a written estimate from another company, bring it, and we’ll give you a free second opinion on it.
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We book the fix right then if you want it. Everything we recommend is covered by our Done Right Promise, which means if it’s not done right, we make it right. No runaround, no phone tag.
What CertainTeed Home Energy Audit Costs in San Antonio
A full CertainTeed home energy audit in San Antonio typically runs between $199 and $449. Homes under 1,800 square feet usually land at the lower end, and larger homes or those with a crawl space run higher because there’s more to inspect and test. If you only want a blower door test or a thermal imaging inspection without the full audit, those start at $149 each.
Here’s a breakdown of what moves the price:
- Blower door test only: $149-$199
- Thermal imaging inspection only: $149-$249
- Full audit, under 1,800 sq ft: $199-$299
- Full audit, 1,800-3,000 sq ft: $299-$399
- Full audit, over 3,000 sq ft or with crawl space: $399-$449
Here’s the part people like: the audit fee is credited back to you if you hire us for any of the insulation or air sealing work we recommend. Homeowners in San Antonio also get $40 off any repair over $200, and seniors and veterans always get 10% off. Call (866) 751-4428 for an exact quote, estimates are free.
Why San Antonio Homeowners Call Walt’s Insulation for CertainTeed Work
We’ve been doing this since 2000, and we’re the one down the road, not a franchise with a call center three states away. Walt Brenner started this company because he got tired of watching San Antonio homeowners get sold insulation methods that don’t work in South Texas heat. We’re locally owned, owner-operated, and our license number and address are published, so you know exactly who you’re dealing with.
Our technicians are background-checked and uniformed, and they know CertainTeed products because they’ve been auditing and repairing them in San Antonio attics for two decades. We also work with other major brands including Owens Corning, Johns Manville, Knauf, Rockwool, Icynene, Demilec, GreenFiber, and Reflectix, so if your home has a mix of products, we can handle all of it in one visit. Every audit and every repair is backed by our lifetime Done Right Promise. If it’s not done right, we make it right.
FAQs
No. Diagnostic testing like a blower door test or thermal imaging inspection does not void a CertainTeed manufacturer warranty. In fact, a documented audit can strengthen a warranty claim because it provides evidence of what was installed and how it’s performing. We stay away from any repair that would compromise your coverage.
Yes. Part of the audit is identifying exactly what insulation and building products are in your home, including which CertainTeed line or series was installed. Many San Antonio homeowners inherit insulation from a previous owner and have no idea what’s up there, so we document everything with photos during the inspection.
That depends on the condition of what’s installed. Settled CertainTeed InsulSafe can often be topped off for less than a full removal, but moisture-damaged DryRight batts usually need to come out. We’ll give you both options with pricing so you can decide, and we’ll never recommend a full replacement when a top-off will do the job.
We typically schedule within two to five business days, and we answer the phone live 24/7, talk to a real person, get a straight answer. If you have a specific concern, like a cold room or a spike in your CPS Energy bill, mention it when you call and we’ll prioritize the areas that matter most to you.
Yes, if you have a forced-air system, duct leakage testing is included in the full audit and available as a standalone test. San Antonio homes routinely lose 20 to 30 percent of conditioned air through leaky ducts, which is one of the most cost-effective fixes we find. Call (866) 751-4428 and ask about adding it to your audit.
Written by Walt Brenner, Owner, Walt’s Insulation at Walt’s Insulation, serving San Antonio and nearby areas.