Demilec Insulation Removal & Replacement in Boerne: What to Know First
As an independent Demilec service provider in Boerne, we remove and replace failed Demilec insulation systems and install correctly specified replacements, with most residential jobs completed in one to two days. Every job starts with a written price before any work starts - no exceptions - and ends with a Documented Photo Record plus before-and-after blower-door numbers when air sealing is part of the scope. If your Demilec spray foam has shrunk, your open-cell attic application is trapping moisture, or you’re dealing with contaminated insulation that needs complete extraction, call (830) 529-7780. We answer live, 24/7.
How Demilec Products Fail - and How We Fix Them
- Heatlok HFO High Lift shrinkage in vented Boerne attics. The HFO blowing agent in this closed-cell series can pull away from rafter bays during our Hill Country temperature swings, especially in homes near the Cibolo Nature Center where morning lows hit the 40s and afternoon attic temps push 140°F. We remove the detached foam mechanically, verify the substrate moisture content stays below 19% with a pin meter, then reinstall at the correct pass thickness so the exothermic reaction completes without stress cracking.
- Demilec Sealection 500 open-cell moisture retention in cathedral ceilings. This 0.5 lb/ft³ open-cell foam is vapor-permeable, which means when it’s sprayed directly against roof decking in Boerne’s humid shoulder seasons without a vented channel above, the underside of the OSB can hit dew point. We extract the saturated foam, assess the decking for delamination, and replace with a properly ventilated assembly or spec a closed-cell alternative if the cavity depth allows.
- Heatlok XT two-component density inconsistencies in older Hill Country ranches. We’ve pulled XT from 1980s Boerne homes where the B-side resin had begun to stratify, leaving soft pockets that read 1.2 lb/ft³ next to areas at 2.0+. The fix is full removal with cold-cutting tools to protect electrical runs, then reapplication with real-time core density sampling - we pull a 2″ cube from a witness strip and weigh it before the crew leaves.
- Sealection Agribalance degradation in agricultural-adjacent properties. The bio-based polyol in this series can attract rodent activity once the soy-derived content becomes detectable, particularly near Boerne’s horse properties and hobby farms. We remove the compromised foam along with nesting debris, rodent-proof with steel mesh at all penetrations, and replace with a synthetic-blend foam or alternate insulation strategy depending on the building use.
- Demilec overspray and off-ratio curing from original contractor error. We find this more often than we should - foam that never hit the 1:1 volumetric ratio, leaving tacky, uncured surfaces that off-gas for years. In a 2019 Fair Oaks Ranch job, we measured isocyanate residue at 340 ppm three years after installation. Full removal is the only fix; we use controlled mechanical extraction with negative air containment, then start fresh with ratio-verified equipment and printed yield tickets.
Our Demilec Insulation Removal & Replacement Process
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Call and scheduling. A live person answers. We book a site visit, text you the technician’s name and ETA the morning of.
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Diagnostics and written price. We inspect the Demilec installation, run a blower-door test if air sealing is in scope, and deliver a flat written price with scope and warranty before anyone lifts a tool - Haven Standard Clause 1.
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Controlled removal. We contain the work zone with negative air, extract the failed Demilec foam mechanically or with cold-cutting methods depending on substrate sensitivity, and bag all debris per Texas disposal requirements for isocyanate-containing materials.
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Substrate prep and air sealing. Seal the envelope first. Then fill it. We seal top plates, can lights, and penetrations before any new insulation goes in.
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Replacement and verification. New insulation installed to spec; on applicable jobs, we run the blower-door again and hand you the printed pressure-differential report in pascals.
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Documentation and closeout. Documented Photo Record delivered, written warranty in hand, 365-Day Done Right Promise active.
What Demilec Insulation Removal & Replacement Costs in Boerne
Most partial Demilec removal and replacement in a Boerne attic runs between $2,800 and $5,400. Full extraction of a failed open-cell cathedral ceiling application, including decking assessment and reinstallation, typically falls between $6,200 and $11,000. What moves the price: square footage of foam to remove, accessibility of the cavity, whether the substrate needs repair after extraction, and whether we’re correcting an unsealed envelope at the same time. Contaminated insulation removal with rodent debris adds $800-$1,600 for HEPA containment and sanitization. We also service Reflectix and other brands if your project involves mixed insulation types.
Bring us any written estimate - we offer a Free Second Opinion and will read it with you line by line. Call (830) 529-7780 for your written price.
Why Boerne Homeowners Call Topside Attic Insulation Boerne for Demilec Work
We’ve been independently owned and operated under The Haven Standard since 2016, and Wes Okafor has been running blower-door tests on Hill Country homes for going on eighteen years. Our crews know the difference between a Heatlok HFO failure and a Sealection moisture issue - and we document which one we found, with photos, before we quote a fix. The 365-Day Done Right Promise applies to every completed job. Calls are answered by a live person 24/7, and our technicians are background-checked and uniformed. When Demilec parts are back-ordered, we have relationships with Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, and GreenFiber - no proprietary lock-in means we spec what performs, not what a manufacturer needs to move.
FAQs
The original Demilec installation warranty is voided once the product is altered or removed by anyone other than the original applicator - that’s standard in spray-foam warranties. As an independent Demilec service provider, our work carries its own 365-Day Done Right Promise and written scope, so you’re covered on the replacement. Call (830) 529-7780 and we’ll review what documentation you have.
Most residential Demilec extractions in Boerne finish in one to two days; full attic jobs with contaminated insulation and rodent debris may run three days for proper HEPA containment and sanitization. We give you a day-by-day schedule in the written scope before work starts. Call for a specific timeline on your job.
Spot repair works when the failure is isolated - a single shrunken bay, a small overspray area. We recommend full replacement when the foam is systematically off-ratio, moisture-compromised across the assembly, or when the original application skipped air sealing and the envelope is leaking. We’ll show you the blower-door numbers and let you decide. Estimates are free.
Yes - R-value is a material property, not a brand property. We source from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, and GreenFiber, and we spec to the same R-value and assembly performance. The difference is in the installation detail: air sealing first, verified with a blower-door test, which is where the actual efficiency lives. Call (830) 529-7780 to compare options.
For most residential jobs, you can stay in the home - we run negative air containment and real-time VOC monitoring during mechanical extraction. You’ll need to vacate for four to six hours if we use solvent-assisted removal on large surfaces, which we discuss in the written scope before work starts. Call us to review your specific situation.
Written by Wes Okafor, Owner, Topside Attic Insulation Boerne at Topside Attic Insulation Boerne, serving Boerne and nearby areas.