Demilec Home Energy Audit in Leander: What to Know First
We provide independent Demilec home energy audit in Leander, typically scheduled within 48 hours and completed in a single visit. Most audits run between $280 and $550 depending on home size and test scope, and you’ll get a written price before we start - no exceptions. This page is for Demilec owners in Leander, including the Crystal Falls and Mason Hills neighborhoods, who want to know whether their spray foam or air-barrier system is performing as specified. Call (737) 252-7159 to schedule or text us a photo of your Demilec label.
How Demilec Products Fail - and How We Fix Them
- Heatlok HFO Pro shrinkage at rim joists. The high-R HFO blowing agent can contract 3-5% during cure in Leander’s low winter humidity, pulling away from sill plates and creating thermal bypasses. We find this with blower-door-directed infrared; the fix is surgical removal and reapplication with proper substrate conditioning, not just “touching up” the gap.
- Demilec Sealection 500 density drift in cathedral ceilings. Open-cell foam specified at 0.5 lb/ft³ sometimes drops below 0.4 in hot-side-down applications, losing its air-barrier qualification. Our audit includes a core sample check; if density reads low, we document it and specify removal or supplemental dense-pack cellulose depending on cavity depth.
- Heatlok XT adhesive failure on OSB sheathing with >18% moisture content. Leander’s spring storms can push sheathing moisture past the substrate limit before foam crews arrive. We see this in 2019-2021 builds where scheduling pressure put foam ahead of dry-in. Our fix: moisture-meter verification, targeted drying protocol, then refoam - never foam over wet wood.
- Sealection Agribalance off-ratio curing in band joists. The soy-based formulation is more sensitive to temperature stratification than petroleum variants; when the B-side runs cool, the foam stays tacky and underperforms. We identify this by odor persistence and Shore A hardness testing, then specify mechanical removal and reinstallation with drum conditioning.
- Demilec air-barrier continuity gaps at electrical penetrations. Even quality foam jobs often miss the 1-inch gap around recessed cans and wire holes required by IECC. We trace these with blower-door smoke pencil and IR; sealing them with acoustical sealant or expanding foam restores the envelope continuity the original Demilec application intended.
Our Demilec Home Energy Audit Process

- 1
Call and label verification. You text us a photo of your Demilec product label or invoice. We confirm the series, application date, and original installer if known.
- 2
Written price delivery. Under Haven Standard Clause 1, we email a flat price for the audit scope before we schedule. No “trip charge” surprises.
- 3
Blower-door baseline and thermal imaging. We run a pressurization test - typically targeting 50 Pascals - to establish CFM50, then use FLIR to map anomalies against the Demilec application drawings if you have them.
- 4
Targeted diagnostics. For Heatlok jobs, we core-sample density. For Sealection, we check hardness and odor. For all jobs, we moisture-map substrates and photograph every finding.
- 5
Written report with options. You get a documented photo record, blower-door numbers, and prioritized fixes with prices. We also note if the Demilec warranty may apply and how to pursue it.
- 6
Schedule repair or file for warranty. If you proceed with us, we book the fix. If warranty coverage looks viable, we give you the documentation package Demilec requires.
Before
AfterWhat Demilec Home Energy Audit Costs in Leander
| Service | Typical Range |
|---|---|
| Basic blower-door + IR audit, under 2,500 sq ft | $280 - $380 |
| Full audit with duct blaster and zonal pressure | $420 - $550 |
| Core density testing (per sample, Heatlok/Sealection) | $85 - $120 |
| Moisture mapping with documented photo record | Included |
What moves the price: home size over 3,500 square feet, multiple HVAC zones requiring additional duct testing, and accessibility issues like finished attic spaces where we need to cut inspection ports. What doesn’t move it: the Demilec series name. We don’t upcharge for brand complexity.
Free estimates are part of our standard process. Call (737) 252-7159 for your written price.
Why Leander Homeowners Call Topside Attic Insulation Leander for Demilec Work

We’ve audited Demilec applications in Leander since 2019, including a cluster of Heatlok HFO Pro jobs in Crystal Falls where summer attic temperatures hit 140°F and shrinkage shows up predictably. Wes Okafor learned blower-door diagnostics at Triton College in River Grove, Illinois, and we still sequence every job the same way: seal the envelope first. Then fill it.
Our 365-Day Done Right Promise applies to any correction work we perform. We also service Reflectix radiant barrier systems when your audit reveals they’re stapled directly over old fiberglass - a shortcut that tells us plenty about who was in your attic before us. Every job closes with a documented photo record and, on applicable work, before-and-after blower-door numbers you can verify yourself.
FAQs
No. Demilec’s limited warranty covers product defect and qualified application; third-party inspection does not void it. We document findings in the format Demilec accepts if you need to file a claim. Call (737) 252-7159 and we’ll walk you through what documentation to gather.
Most Leander appointments are available within 48 hours, and we answer calls 24/7. Same-week scheduling is typical unless we’re in peak season after a major weather event. Text (737) 252-7159 with your address and product photo for first available.
Repair makes sense for isolated shrinkage or small gaps under 10% of total area; removal and reapplication is justified when density is below spec, moisture damage is present, or the original application missed code-required coverage. We give you both numbers in the written report so you can decide. Estimates are free.
We use OEM Demilec when the repair is warranty-adjacent or you specifically request matched material. For non-warranty corrections, we also install quality aftermarket foams from Icynene, Johns Manville, and other manufacturers we stock - no proprietary lock-in. We explain the performance difference, if any, before you choose.
A written report with blower-door CFM50, thermal images with temperature annotations, moisture readings, density data if sampled, and prioritized fix options with flat prices. This is your documentation for warranty claims, resale disclosure, or contractor comparison. We deliver it within 24 hours of the visit.
Written by Wes Okafor, Owner, Topside Attic Insulation Leander at Topside Attic Insulation Leander, serving Leander and nearby areas.