Demilec Insulation Removal & Replacement Nationwide

Demilec Insulation Removal & Replacement in Santa Clarita: What to Know First

As an independent Demilec service provider, we remove and replace Demilec insulation systems in Santa Clarita 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 $2,800 and $6,400 depending on square footage, contamination level, and whether the original install was closed-cell or open-cell foam. This page is for homeowners who found Demilec labeled on their attic rafters or crawl space walls and need it out - whether it’s degraded, contaminated, or simply the wrong product for the space it was shot into. Call (747) 294-2764 for a free estimate with a written scope delivered before we lift a tool.

Call (747) 294-2764

How Demilec Products Fail - and How We Fix Them

• Demilec SEALECTION 500 open-cell foam shrinkage in hot Santa Clarita attics. The 500 series was specified heavily in 2012-2018 builds across Valencia and Saugus, and we’ve pulled miles of it that pulled away from rafter bays as seasonal temperatures cycled past 140°F under the roof deck. The foam cracks, creating convection channels that move moisture and conditioned air. We cut it out with hot knives and long-reach blades, then seal the substrate with closed-cell replacement or a hybrid system matched to the roof assembly.
• Demilec Heatlok Soya HFO overspray and off-ratio curing in retrofit jobs. This vegetable-oil-based closed-cell product was marketed hard to eco-conscious buyers in Canyon Country and Newhall around 2016-2020. When the A and B sides don’t hit the right mix temperature - common in unconditioned Santa Clarita garages where rigs get parked - you get crumbly, low-density foam that traps water. We remove it mechanically, test the sheathing for moisture content with pin meters, and only reinstall after readings drop below 16 percent.
• Demilec Heatlok XT two-pound foam in unvented crawl spaces with seasonal groundwater. XT was spec’d for rim joists and crawl walls in Stevenson Ranch homes built on the old alluvial fan soils. Ground moisture wicks through foundation walls, and closed-cell foam on the interior face becomes a vapor barrier in the wrong place - condensation forms behind it, rotting sill plates. We strip the XT, install proper drainage matting and vapor barrier on the ground first, then use a permeable system that lets walls dry inward.
• Demilec Agribalance (discontinued line) degradation from UV exposure in storage attic hatches. Agribalance was an early bio-based open-cell product with a UV stabilizer package that didn’t hold up to Santa Clarita’s high solar load when attic hatches got left open or pull-down stairs had missing gaskets. The surface dusts and powders, sending particulate into the HVAC return. We HEPA-vacuum the degraded material, treat the substrate, and replace with current-generation foam or dense-pack cellulose depending on the homeowner’s sensitivity profile.
• Demilec spray foam installed over unsealed top plates and can lights - a specification error, not a product defect, but we see it constantly. Demilec reps didn’t always require blower-door-directed air sealing as a prerequisite, so crews in Santa Clarita shot foam over leaky ceilings and called it done. The insulation performs at a fraction of rated R-value because air washes right through. We remove the compromised foam, seal every penetration with foam and gasketed covers, then reinstall. The report goes home with you. The numbers don’t lie, and you shouldn’t have to take anyone’s word for it.

Our Demilec Insulation Removal & Replacement Process

1. 1
   Call and scope. A live person answers at (747) 294-2764 24/7. We schedule a site visit, and Wes Okafor or a senior tech walks the attic or crawl with you, identifying the Demilec product line by visual inspection and density testing.
2. 2
   Blower-door baseline and contamination assessment. We run a blower-door test - a pressurization reading that shows, in one number, how much conditioned air your building envelope is losing. We also test for asbestos if the home predates 1990, and rodent or mold contamination regardless of year.
3. 3
   Written price and scope under Haven Standard Clause 1. Flat price, written scope, written warranty. No work starts without it. We also offer a Free Second Opinion on any competing written estimate.
4. 4
   Controlled removal and substrate prep. Demilec foam comes out with hot knives, mechanical abrasion, or chemical release agents depending on the substrate - drywall, sheathing, or masonry. We protect living space with sealed containment and negative air.
5. 5
   Air sealing first, then replacement insulation. Top plates, can lights, pipe penetrations, and chimney chases get sealed before any new product goes in. We verify with mid-job blower-door testing.
6. 6
   Final test, photo record, and walkthrough. Post-job blower-door numbers are printed and handed to you. The Documented Photo Record goes to your email before we leave. The 365-Day Done Right Promise covers everything.

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What Demilec Insulation Removal & Replacement Costs in Santa Clarita

Price movers: attic square footage, roof pitch (steeper = slower removal), whether the Demilec was open-cell or closed-cell, contamination level, and whether we find unsealed bypasses that need correction. Every estimate is free, written, and binding. Call (747) 294-2764 for yours.

Why Santa Clarita Homeowners Call Topside Attic Insulation Santa Clarita for Demilec Work

We’ve removed Demilec products from attics in Santa Clarita since the first wave of spray-foam retrofits hit this market in 2016. Wes Okafor trained in building science and weatherization at Washburne Trade School in Chicago, and that background shows in how we sequence work: seal first, insulate second, measure always. Our crews carry OEM Demilec data sheets and cross-reference with Johns Manville, Knauf, and Rockwool specs so we’re not locked into one manufacturer’s replacement product. We also service Reflectix and other radiant barrier systems when the roof assembly calls for a hybrid approach. Background-checked, uniformed technicians. Calls answered live. The 365-Day Done Right Promise and a written price before any work starts - that’s Haven Standard, no exceptions.

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