Demilec Insulation Removal & Replacement in Round Rock: What to Know First
As an independent Demilec service provider, we remove and replace Demilec spray foam and hybrid insulation systems in Round Rock homes, typically completing attic jobs in one to two days with a written price locked before any work starts. Most Demilec removal and replacement projects in this market run between $3,800 and $8,500 depending on attic square footage, foam thickness, and whether the substrate needs repair after extraction. This page is for Round Rock homeowners who’ve discovered deteriorating, off-gassing, or improperly applied Demilec foam and need it removed safely and replaced with a documented, performance-verified system. Call (737) 259-7528 for a free estimate with a written scope.
How Demilec Products Fail - and How We Fix Them
- Demilec Heatlok HFO High Lift shrinkage and pull-away. The HFO blowing agent in newer Heatlok formulations can contract more aggressively in attics that cycle through Round Rock’s 100°F summer days and 30°F winter nights, leaving visible gaps between foam and roof deck. We remove the separated foam mechanically, assess the sheathing for moisture staining, then re-seal with targeted air sealing before installing replacement insulation.
- Demilec SEALECTION 500 overspray and misapplication in retrofits. SEALECTION 500 demands precise substrate temperature and mix ratios; when previous installers skipped prep in older Round Rock homes near Old Town, we’ve found foam that never achieved full rise density, creating pockets that trap condensation. We extract the failed material and document substrate damage with photos the homeowner keeps.
- Demilec Heatlok XT yellowing and odor complaints. The XT line’s isocyanate chemistry can emit a persistent chemical smell when applied too thick in a single pass, a mistake we see in attics with limited access where installers rushed to finish. Removal requires controlled ventilation and PPE; we replace with a layered approach that eliminates the odor source entirely.
- Demilec Agribalance degradation in high-humidity crawl spaces. Agribalance’s bio-based content absorbs more atmospheric moisture than petroleum-based foams, and in Round Rock’s clay-soil crawl spaces near Brushy Creek, we’ve pulled saturated foam that lost its adhesion and R-value. We remove it, install proper vapor barrier, then replace with material suited to that microclimate.
- Demilec open-cell foam in unvented attics without proper vapor management. Open-cell Demilec products in Round Rock’s humid subtropical climate can allow moisture vapor to reach cold roof sheathing, leading to mold and wood rot. We remove the compromised foam, treat affected substrates, and redesign the assembly with correct vapor retarder placement and insulation strategy.
Our Demilec Insulation Removal & Replacement Process
- 1
Call and scope. A live person answers 24/7. We schedule a site visit in Round Rock, usually within 48 hours.
- 2
Blower-door test and attic inspection. We pressurize the house to measure current air leakage in CFM50, then photograph the Demilec installation condition, substrate state, and any moisture damage. You get these photos.
- 3
Written price and material selection. We deliver a flat price with scope, warranty, and material specification before any work starts. For Demilec replacement, we may recommend Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, or GreenFiber based on your assembly and budget - no proprietary lock-in.
- 4
Controlled removal and substrate repair. Our crew uses mechanical extraction and HEPA containment to remove failed Demilec foam without spreading particulate through your HVAC system. Damaged sheathing or drywall is repaired now, not hidden under new insulation.
- 5
Air sealing, then insulation. Seal the leaks first. The insulation has nowhere to go until you do. We seal top plates, can lights, and penetrations, then install replacement insulation.
- 6
Post-install blower-door test and documentation. We run the pressurization test again and give you the before-and-after CFM50 numbers, plus the photo record and written warranty under our 365-Day Done Right Promise.
What Demilec Insulation Removal & Replacement Costs in Round Rock
| Scenario | Typical Range |
|---|---|
| Partial Demilec removal (localized failure, under 300 sq ft) | $3,800 - $5,200 |
| Full attic Demilec extraction, standard substrate | $5,500 - $7,800 |
| Full removal with substrate repair/replacement | $6,800 - $9,500 |
| Crawl space Demilec removal with vapor barrier install | $4,200 - $6,900 |
What moves the price: foam thickness and coverage area, whether the substrate needs repair after extraction, accessibility (steep pitches and tight scuttles add labor), and whether hazardous material protocols apply. We also provide a Free Second Opinion on any written estimate you’ve already received. Call (737) 259-7528 for your exact number - estimates are free, and the price we write is the price you pay.
Why Round Rock Homeowners Call Topside Attic Insulation Round Rock for Demilec Work
We’ve sealed and insulated over 9,000 homes since 2016, and enough of them in Round Rock’s neighborhoods - from Behrens Ranch to Fern Bluff - that we know which attic configurations in this part of Williamson County hide the bypasses that ruin insulation performance. Wes Okafor and our crew don’t blow new material over unsealed top plates or recessed cans; we document every job with before-and-after blower-door numbers and a photo record you keep. The 365-Day Done Right Promise means if it’s not done right, we make it right - backed by a written scope and warranty delivered before anyone starts. We also service Reflectix and other systems, so if your assembly needs a hybrid approach, we’re not locked into a single product line.
FAQs
The original Demilec installation warranty was between you and that contractor; removing failed foam doesn’t create a new claim, but it does end coverage on the removed material. We document pre-existing conditions with photos so you have a record if disputes arise. Call (737) 259-7528 and we’ll review your paperwork with you.
Yes - and usually improve it. Demilec closed-cell foam runs about R-6.5 per inch; we can achieve equivalent or better performance with layered assemblies using Rockwool, Owens Corning, or other materials, properly air-sealed. The blower-door test proves the result.
Most Round Rock attic removals finish in one long day; full replacements with substrate repair typically take two days. We don’t rush the extraction - disturbed isocyanate dust requires containment protocols that protect your air quality.
Spot repairs on isolated shrinkage or pull-away can work if the surrounding foam is sound and properly adhered. But when we find systematic misapplication, overspray, or moisture degradation, partial repair usually fails within two years and costs more than doing it right once. We give you both options in writing.
We typically inspect within 48 hours in Round Rock, and schedule removal within one to two weeks depending on crew availability. Emergency situations - active roof leaks through compromised foam, for example - get prioritized. Call (737) 259-7528 to check current scheduling.
Written by Wes Okafor, Owner, Topside Attic Insulation Round Rock at Topside Attic Insulation Round Rock, serving Round Rock and nearby areas.