Demilec Insulation Removal & Replacement Nationwide

Demilec Insulation Removal & Replacement in Pomona: What to Know First

We provide independent Demilec insulation removal and replacement in Pomona, typically completing most jobs in one to two days with a written price locked before any work starts. Most Demilec attic removals in the Pomona Valley run $2,800-$5,400 depending on square footage, contamination level, and whether the existing foam needs mechanical scraping or chemical-assisted removal. Call (562) 242-7569 for a free written estimate with no obligation to book.

Call (562) 242-7569

This page is for Pomona homeowners who find their Demilec open-cell or closed-cell spray foam has degraded, been compromised by rodent activity, or was installed over an unsealed attic floor and now needs complete removal and replacement. If you’re seeing crumbling foam, odor issues, or energy bills that no longer match your insulation’s rated R-value, we can diagnose what’s actually happening and give you a documented plan to fix it.

How Demilec Products Fail - and How We Fix Them

• Demilec SEALECTION 500 open-cell foam shrinkage in hot roof assemblies. In Pomona’s inland climate, attic temperatures regularly exceed 140°F at the roof deck, and we’ve found SEALECTION 500 pulling away from rafter bays in homes near Lincoln Park and north of the 10 freeway. The foam shrinks 2-5% over time when installed too thin in high-temperature zones. We remove the detached foam mechanically, verify the substrate moisture content stays below 19%, then reinstall with proper lift thickness or switch to a closed-cell alternative if the assembly can’t vent.
• Demilec Heatlok HFO High Lift closed-cell overspray into soffit vents. HFO High Lift is designed for 3.5-5.5 inch passes without scorching, but inexperienced installers in the 2018-2021 building boom sprayed it deep into eave cavities, blocking intake ventilation. We see this in Pomona’s postwar ranch additions near Ganesha Park. Our crew removes the obstructed foam with specialized cutting tools, restores the soffit airflow path, and replaces with a vent-compatible insulation strategy - usually a combination of baffles and targeted dense-pack cellulose.
• Demilec Heatlok XT low-density closed-cell moisture trapping behind existing fiberglass. When XT is retrofit-sprayed over old batt insulation without removal - a corner-cutting practice we’ve documented in several Pomona flip properties - the impermeable skin locks moisture against the ceiling drywall. We strip both layers, run a thermal imaging survey to find the condensation boundary, then install a proper vapor-smart assembly with air sealing completed first.
• Demilec Agribalance bio-based foam rodent contamination and digestion. Agribalance’s soy-derived content makes it attractive to roof rats and squirrels, a persistent problem in Pomona’s older neighborhoods with mature oak canopy. We remove the urine-saturated foam following Cal-OSHA guidelines for biological contaminants, sanitize the substrate with an enzyme treatment, then replace with a synthetic closed-cell product and seal all entry points with 1/4-inch hardware cloth.
• Demilec SEALECTION Agri-Performance shrinkage at top plate gaps in balloon-framed walls. Pomona’s pre-1960 housing stock near downtown includes balloon framing that moves seasonally. Agri-Performance, while marketed for agricultural and residential use, can tear at the top plate connection when the studs rack. We remove the failed sections, install backer rod and acoustic sealant at the plate line for movement accommodation, then respray with a more flexible open-cell formulation or transition to dense-pack cellulose in historic structures where foam isn’t appropriate.

Our Demilec Insulation Removal & Replacement Process

1. 1
   Call and scheduling. A live person answers 24/7. We book a site visit in Pomona within 48 hours, often next-day. You get a text when your technician is en route with a name and photo.
2. 2
   Diagnostics and blower-door test. We run a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing - before touching any material. For Demilec jobs, we also core-sample the foam to check density and adhesion, and shoot thermal images to find hidden delamination.
3. 3
   Written scope and price. Under Haven Standard Clause 1: flat price, written scope, written warranty before anyone lifts a tool. No work starts without it. We specify OEM Demilec replacement or quality aftermarket equivalent, your choice, with the trade-offs explained.
4. 4
   Removal and substrate prep. Mechanical removal for accessible areas; chemical-assisted softening for tenacious closed-cell adhesion. All debris is bagged and hauled per San Bernardino County waste guidelines. We then air seal top plates, can lights, and penetrations - because seal the leaks first. The insulation is just the last layer of the answer.
5. 5
   Replacement and verification. New insulation installed to written spec. We run a second blower-door test and provide the before-and-after CFM50 reading. Your Documented Photo Record is delivered same day.
6. 6
   Warranty and follow-up. The 365-Day Done Right Promise applies. If the numbers don’t match what we promised, we return.

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What Demilec Insulation Removal & Replacement Costs in Pomona

These are real numbers for Pomona’s market, not teaser rates. The only way to know your exact price is a site visit, which is free. Call (562) 242-7569 and we’ll bring a written estimate you can compare - we also offer a Free Second Opinion on any written estimate you’ve already received.

Why Pomona Homeowners Call Topside Attic Insulation Pomona for Demilec Work

We’ve removed and replaced Demilec foam in over 200 Pomona Valley homes since 2016, and we’ve learned which batches from which years have which problems. Wes Okafor, who picked up his air-sealing fundamentals at Richard J. Daley College back when California codes were still catching up, runs a blower-door test on every applicable job so the final R-value on paper matches what the house actually performs.

We’re independent - not affiliated with or authorized by Demilec - which means we recommend what’s actually right for your assembly, not what moves a particular product line. We also service Reflectix and other brands, so if your situation calls for a material change, we can execute it without subcontracting. Every job gets the Haven Standard treatment: written price first, documented record last, and a live person on the phone whenever you call.

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