Demilec Home Energy Audit in Yorba Linda: What to Know First
We provide independent Demilec home energy audit in Yorba Linda for homeowners who need blower-door testing, thermal imaging, and insulation inspection on homes with Demilec spray foam systems. Most audits are scheduled within 48 hours and completed in 2-4 hours on site. You’ll get a written price before we start, a documented photo record of what we find, and printed blower-door numbers you can compare against your next energy bill. This page is for Yorba Linda homeowners who know they have Demilec foam in their attic or walls and want to understand whether it’s performing as specified. Call (909) 323-1675 to schedule or text us if that’s easier.
How Demilec Products Fail - and How We Fix Them
- Demilec SEALECTION 500 open-cell foam shrinkage at roof decks. In Yorba Linda’s inland heat, attic temperatures at roof sheathing regularly exceed 150°F in August. SEALECTION 500 can pull away from rafter bays after 8-12 years, creating convection channels that bypass the foam entirely. We map these gaps with thermal imaging, then seal with Demilec-compatible low-expansion foam before adding targeted dense-pack cellulose where the original application has failed.
- Demilec HEATLOK Soya closed-cell thermal drift in hillside homes. The blowing-agent blend in early HEATLOK Soya batches can lose R-value over time, especially in homes off Bastanchury Road where temperature swings between 40°F winter nights and 110°F summer days stress the polymer matrix. Our audit includes core sampling with a calibrated thermal probe to check actual in-situ R-value against the labeled spec.
- Demilec DEMILEC APX overspray into soffit vents blocking intake airflow. APX’s fast-rise chemistry can bridge the gap between rafter tails and soffit baffles during original installation, choking the ventilation path that Yorba Linda’s Title 24 compliance depends on. We remove the blockage with controlled cutting, reinstall proper baffles, and document the correction with photos for your records.
- Demilec SEALECTION AGENDA moisture trapping in top plates. When open-cell foam is applied directly over unsealed top plates in two-story homes, seasonal humidity from Yorba Linda’s Santa Ana wind cycles can condense at the plate line. We find this with moisture meters and infrared during our audit, then cut back the foam, seal the plate with closed-cell flash, and reinstall.
- Demilec HEATLOK XT improper lift thickness causing cold joints. Installers working fast in summer heat sometimes exceed the maximum per-lift thickness, leaving laminations inside the foam that read as thermal bridges on our FLIR. We identify the pattern, mark the affected bays, and specify whether localized removal or supplemental insulation is the cost-effective fix.
Our Demilec Home Energy Audit Process
- 1
Call intake with product verification. We ask for the Demilec product name, install year, and any paperwork you have. Our dispatcher texts you a 30-minute arrival window and the technician’s name.
- 2
Visual and thermal inspection. The technician walks the attic and crawl with a FLIR T540, looking for the failure modes above. We photograph every anomaly and mark locations on a floor plan.
- 3
Blower-door depressurization test. We run a multi-point test to measure CFM50 and identify the dominant leakage paths. If your home was previously tested, we compare against baseline.
- 4
Written scope and price. Before any repair work, you get a flat price, a written description of what we’ll do, and the warranty terms. Haven Standard Clause 1: no work starts without it.
- 5
Repair and verification. We complete the air sealing or remediation, then re-run the blower door to generate your before-and-after numbers. The photo record and test report go home with you.
- 6
365-Day Done Right follow-up. We call at 90 days to check performance. If the numbers don’t hold, we return under our promise.
What Demilec Home Energy Audit Costs in Yorba Linda
Most Demilec home energy audits in Yorba Linda run between $350 and $650 for a single-family home under 3,500 square feet. That covers the blower-door test, full thermal imaging survey, insulation inspection, and written report with photos.
If we find duct leakage and you want a duct-blaster test added, figure another $200-$350. Homes with conditioned attics or multiple HVAC zones take longer to test and sit at the higher end. Remediation work, if needed, is priced separately with the same written-price rule.
What moves the price: attic accessibility (steep pitches off Lakeview Avenue add time), the age of the foam (older Demilec formulations need more diagnostic care), and whether we’re working around stored belongings. We also service Reflectix radiant barrier systems if your home has hybrid insulation.
Call (909) 323-1675 for an exact quote. Estimates are free, and we offer a free second opinion on any written estimate you’ve already received.
Why Yorba Linda Homeowners Call Topside Attic Insulation Yorba Linda for Demilec Work
We’ve audited and repaired Demilec foam in Yorba Linda homes since 2016, from the original ranch builds near Savi Ranch to the newer two-stories in Eastlake. Wes Okafor, our owner, learned building science through Kennedy-King College’s HVAC and weatherization program before running crews in Orange County for over a decade. He knows that a blower-door reading of 4,200 CFM50 in July means something different in Yorba Linda than it does in coastal Newport Beach, and he prices accordingly.
Every applicable job gets before-and-after blower-door numbers published in your report. Our 365-Day Done Right Promise covers all completed work. Calls are answered by a live person 24/7, and our technicians are background-checked, uniformed, and trained on Demilec’s specific failure patterns. We carry Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber materials, so we specify what fits your home rather than what fits our inventory.
Seal the leaks first. Then insulate. The numbers will tell you whether it worked.
FAQs
No. Demilec’s material warranty covers product defect, not installation workmanship, and it does not require manufacturer-authorized service for the warranty to remain valid. We document our findings with photos and thermal data, which actually strengthens any future claim you might file with Demilec directly. If you’re unsure about your coverage, we can review your paperwork during the audit. Call (909) 323-1675 to schedule.
We can source OEM Demilec products for repairs where matching the original formulation matters, particularly with HEATLOK Soya and HEATLOK XT where thermal performance depends on the specific blowing-agent blend. For smaller touch-ups and air-sealing corrections, we often use compatible third-party low-expansion foams that meet the same ASTM standards at lower cost. We tell you which we’re proposing and why before any material goes in.
The blower-door test answers this. If the foam itself is intact but your home still leaks 3,000+ CFM50, the problem is likely bypass air at top plates, can lights, and penetrations that the original installer missed. If thermal imaging shows shrinkage, drift, or moisture damage inside the foam matrix, removal and replacement is the honest call. We show you both readings and explain the difference before you decide.
We typically schedule within 48 hours, and we offer same-day service for homes with active moisture issues or HVAC performance problems. Our dispatcher texts your technician’s name and ETA. Call (909) 323-1675 or text us to check today’s availability.
Localized repair of failed Demilec foam usually runs $800-$2,400, while full removal and replacement with alternative insulation in a typical Yorba Linda attic can reach $4,500-$8,000. We only recommend full replacement when the failure pattern is widespread or the original product has aged past its useful life. Our audit gives you both options in writing so you can compare actual numbers, not guesses.
Written by Wes Okafor, Owner, Topside Attic Insulation Yorba Linda at Topside Attic Insulation Yorba Linda, serving Yorba Linda and nearby areas.