Demilec Spray Foam Insulation Nationwide

Demilec Spray Foam Insulation in Cedar Park: What to Know First

We provide independent Demilec spray foam insulation in Cedar Park, typically completing diagnostic-to-installation jobs in one to two days. Most homeowners receive a written price before we lift a tool, and every job closes with a documented photo record. We’re not affiliated with or authorized by Demilec - we work on their products as an independent service provider with no proprietary lock-in.

Call (737) 245-6428

This page is for Cedar Park homeowners who need open-cell, closed-cell, rim joist, or garage ceiling spray foam work and want to know what they’re actually paying for before anyone shows up. If your home is in Buttercup Creek, Ranch at Deer Creek, or anywhere in the 78613 zip, the climate realities here - 140°F attic peaks in July, hard freezes every few winters - change how foam performs and how it fails. Call (737) 245-6428 for a free estimate with a written price.

How Demilec Products Fail - and How We Fix Them

• Heat-Flex 1000 series shrinkage in roof decks. Demilec’s Heat-Flex 1000 open-cell foam, common in Cedar Park builds from 2018-2022, can pull away from roof decking when attic temperatures cycle above 130°F repeatedly. The gap isn’t always visible from below; we find it with thermal imaging during our pre-install infiltration test. We cut back the failed section, re-foam with compatible density, and re-test.
• Sealection 500 overspray on HVAC flex duct. Sealection 500’s aggressive expansion rate makes it a strong performer for wall cavities, but overspray onto flex duct in tight Cedar Park attics hardens the jacket and cracks it within two heating seasons. We mask and protect before spraying, or if we inherit the damage, we replace the affected duct runs and document the cause in your photo record.
• Demilec 500 closed-cell delamination from OSB sheathing. In Cedar Park’s spring humidity spikes, 500 closed-cell can release from OSB if the substrate moisture content was above 19% at install - a specification many crews skip checking. We moisture-test every substrate with a pinned meter before we spray; if it’s wet, we dry it first. The fix for existing delamination is removal, drying, and re-application.
• Agribalance off-gassing odor persistence. Agribalance, Demilec’s soy-based open-cell line, can retain a faint amine odor for weeks if the A/B mix was off-ratio during install or if the substrate temperature in a shaded Cedar Park garage was below 60°F. We verify mix ratios with our supplier certificates and check substrate temp with an infrared gun before every pass. Persistent odor jobs require targeted venting, not cover-up.
• Rim joist foam cracking in pier-and-beam homes. Demilec foam in rim joists of older Cedar Park homes near Cypress Creek shrinks where foundation settling creates shear stress. We see this in 1970s-1980s construction on the west side of town. Our fix is strategic joint placement in the foam layer, not a solid monolithic fill, so the assembly can move without cracking the air seal.

Our Demilec Spray Foam Insulation Process

1. 1
   Call and schedule. A live person answers 24/7. We book a diagnostic visit with a named technician and text you when they’re en route - Haven Standard: Arrive on schedule.
2. 2
   Pre-install infiltration test. We run a blower-door test - a pressurization reading that shows, in one number, how much conditioned air your building envelope is losing. We record CFM50 and ACH50 before any work starts. In Buttercup Creek homes, we regularly see 4,200+ CFM50 before we touch anything.
3. 3
   Diagnose and price. We identify the Demilec product line, the failure mode, and the fix. You get a written price, a written scope, and a written warranty before anyone lifts a tool. Haven Standard Clause 1.
4. 4
   Air seal first, then foam. We seal top plates, can lights, and penetrations before any insulation goes in. Seal the leaks first. Then insulate. The order matters more than the product.
5. 5
   Spray with documented parameters. We record substrate temperature, ambient humidity, and mix ratio for every pass. You get a documented photo record of the work area, the application, and the finished assembly.
6. 6
   Post-install test and handoff. On applicable jobs, we run a second blower-door test and hand you the before-and-after ACH50 numbers. The 365-Day Done Right Promise begins when we leave.

What Demilec Spray Foam Insulation Costs in Cedar Park

These are real ranges for Cedar Park’s market in 2024-2025. Your exact price depends on what we find in the pre-install infiltration test and the photo documentation we take. We also offer a free second opinion on any written estimate you’ve already received - bring us a competing quote and we’ll read it with you. Call (737) 245-6428 for your written price.

Why Cedar Park Homeowners Call Topside Attic Insulation Cedar Park for Demilec Work

We’ve sealed and insulated 9,000+ homes since 2016, and we don’t blow insulation over an unsealed attic floor - period. Every Demilec job gets the same documentation: written price first, photo record during, and before-and-after blower-door numbers when the work involves air sealing. Our technicians are background-checked and uniformed; they know the difference between Heat-Flex 1000 and Sealection 500, and they carry both OEM Demilec materials and quality alternatives from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, and GreenFiber. No proprietary lock-in means we specify what’s right for your assembly, not what a manufacturer requires us to move.

Wes Okafor, our owner, learned blower-door discipline at Olive-Harvey College on Chicago’s South Side before bringing that air-sealing rigor to Central Texas. He’s spent years running jobs across Cedar Park, and his crew still finds attics in Ranch at Deer Creek reading 140°F before anyone touches them. The 365-Day Done Right Promise applies to every completed job. If it’s not done right, we make it right.

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