Demilec Home Energy Audit in New Braunfels: What to Know First
We provide independent Demilec home energy audit in New Braunfels, typically completing the full diagnostic and written report within a single visit that runs two to three hours. Most Demilec systems we test in this market are original to homes built between 2010 and 2019, and we publish before-and-after blower-door numbers on every job so you see the performance change in CFM50, not just a verbal summary. This page is for homeowners who need a home energy audit on a Demilec-insulated home and want the price, the process, and the documentation spelled out before anyone arrives. Call (830) 243-6352 to schedule or to bring us a competing written estimate for a free second opinion.
How Demilec Products Fail - and How We Fix Them
- Demilec SEALECTION 500 open-cell spray foam shrinkage at top plates. In New Braunfels, the combination of summer attic temperatures exceeding 140°F and winter humidity swings causes this open-cell line to pull back from framing members at the attic perimeter, typically 3-8 mm. We find this with thermal imaging during our home energy audit, then cut back the affected foam, seal the gap with closed-cell touch-up, and re-test with the blower door to confirm the bypass is eliminated.
- Demilec Heatlok XT closed-cell delamination from OSB roof decks in vented attics. This high-R closed-cell product bonds aggressively when applied, but in homes with cathedral ceilings or conditioned attics where roof ventilation was added after the fact, moisture cycling can break the adhesive interface. We map the delaminated zones with infrared during the audit, then either re-foam after proper substrate prep or recommend a hybrid approach depending on the percentage of affected area.
- Demilec Heatlok Soy 200 overspray into soffits blocking intake ventilation. Installers working fast on production homes in Comal County sometimes carried foam into eave chutes. We spot this with visual inspection and smoke-pencil testing during the audit, then remove the blockage mechanically and install proper baffles before any additional insulation goes in.
- Demilec Agribalance density inconsistencies in wall cavities. This mid-density open-cell product can vary in installed density when substrate temperatures drift outside manufacturer spec during application, which we see in New Braunfels spring and fall jobs where morning dew wasn’t accounted for. Low-density pockets read hotter on thermal imaging; we note them in the audit report and recommend targeted injection or removal and reapplication depending on cavity access.
- Demilec SEALECTION Agri Cure off-ratio curing in crawl spaces. The B-side isocyanate component is moisture-sensitive, and in encapsulation jobs where the crawl space vapor barrier was incomplete at time of foam application, off-ratio cure produces a tacky, underperforming surface that holds odor. We test hardness with a durometer during the audit, document the failure mode photographically, and specify removal and reinstallation with proper moisture management as a prerequisite.
Our Demilec Home Energy Audit Process

- 1
Call and scheduling. A live person answers, confirms your Demilec product line if you know it, and schedules a two-to-three-hour window. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
- 2
Pre-test blower-door run. We pressurize the house to 50 Pascals and record the CFM50 baseline - the number that tells us how much conditioned air your building envelope is losing before we touch anything. The number on the blower-door printout tells you what the insulation did. Everything else is just talk.
- 3
Thermal imaging and visual inspection. We scan all Demilec-insulated surfaces with FLIR, noting shrinkage, delamination, density variation, and overspray blockages specific to the product line installed. Photos are geotagged and time-stamped.
- 4
Duct leakage testing if applicable. Many Demilec homes in New Braunfels have ductwork in the conditioned attic; we run a Duct Blaster to measure leakage to outside and identify whether the foam envelope is performing or if the ducts are undermining it.
- 5
Written scope and pricing. Before any work starts, you receive a flat price, written scope, and written warranty - Haven Standard Clause 1. No exceptions. We also note whether OEM Demilec foam or a compatible aftermarket product is specified for any remediation.
- 6
Post-work verification and documentation. After any air sealing or remediation, we re-run the blower door and publish the before-and-after numbers. You leave with printed readings, a photo record, and a copy filed by your address.
Before
AfterWhat Demilec Home Energy Audit Costs in New Braunfels
Most Demilec home energy audits in New Braunfels run between $350 and $650 for a single-family home under 3,500 square feet. The price moves based on three factors: whether the home has a conditioned attic requiring roof-deck thermal scanning, whether duct leakage testing is added, and how many Demilec application zones need documented assessment.
Remediation found during the audit is priced separately with the same upfront written quote. A typical top-plate seal and touch-up on SEALECTION 500 shrinkage runs $800-$1,400. Heatlok XT delamination repair on a cathedral ceiling section runs $1,800-$3,200 depending on square footage and access. We also service Reflectix radiant barrier systems where they were installed in conjunction with Demilec foam, and we price those inspections concurrently if requested.
Estimates are free. Call (830) 243-6352 for an exact quote on your Demilec home energy audit - we will read any competing written estimate with you at no charge.
Why New Braunfels Homeowners Call Topside Attic Insulation New Braunfels for Demilec Work

We are an independent Demilec service provider, not a manufacturer affiliate, which means we specify what the house actually needs rather than what a brand protocol demands. Wes Okafor and our crew have worked neighborhoods all over the New Braunfels area, including jobs off the River Road corridor near the Guadalupe, where stack-effect air leakage in older slab homes tends to run higher than homeowners expect. We have sealed and insulated 9,000+ homes since 2016, every one with a written price before work started and a documented record when the crew left. The 365-Day Done Right Promise applies to all completed work. Calls are answered by a live person 24/7, and our technicians are background-checked and uniformed.
FAQs
No. A properly conducted diagnostic audit does not void the Demilec material warranty, though any remediation work must follow manufacturer installation guidelines to preserve coverage. We document our methods photographically so there is a record if warranty questions arise later. Call (830) 243-6352 if you need us to review your warranty documents with you.
We can specify OEM Demilec products where the application and budget warrant it, and we also use compatible aftermarket foams from Owens Corning, Johns Manville, Knauf, Icynene, and other manufacturers we source regularly. We explain the trade-offs in writing before you decide - no proprietary lock-in. Bring us any competing quote for a free second opinion.
Replacement is typically indicated when more than 30% of the installed foam area shows failure modes like delamination, off-ratio cure, or density variation, or when the product was applied before proper air sealing and the cost of remediation approaches that of full removal and reinstallation. We state this threshold explicitly in your written audit report. Call (830) 243-6352 to schedule the diagnostic that answers this for your specific home.
We typically schedule within two to four business days, and we offer same-week availability for homes under contract or experiencing active comfort issues. A live person answers calls 24/7 to book your slot. The audit itself takes two to three hours on site, and your written report with blower-door numbers and photo documentation is delivered within 24 hours.
You receive printed pre- and post-work blower-door readings in CFM50, geotagged thermal images with annotations, a written scope of any recommended remediation with flat pricing, and a copy of our warranty terms. This documentation is also filed by your address in our records, which has proven useful when New Braunfels homeowners later sell and the buyer’s inspector asks questions.
Written by Wes Okafor, Owner, Topside Attic Insulation New Braunfels at Topside Attic Insulation New Braunfels, serving New Braunfels and nearby areas.