Demilec Insulation Removal in Dallas: What to Know First
Demilec insulation removal in Dallas typically runs $1.50 to $3.00 per square foot depending on the product type, attic access, and how much material is coming out. Most removal jobs we schedule finish in one day, sometimes two if the attic is tight or the Demilec foam has bonded hard to the decking. The price we quote is the price you pay, in writing, before our crew ever opens the truck.
If you own a Dallas home with Demilec spray foam, open-cell or closed-cell, and it’s failing, pulling away from the rafters, or trapping moisture where it shouldn’t, this page is for you. We’re Alden Insulation Dallas, an independent Demilec service provider, not a manufacturer affiliate, and we’ve removed and replaced enough of it in Dallas attics to know where it goes wrong and what it takes to get it out clean. Call (940) 748-1726 and a live person answers, day or night.
How Demilec Products Fail – and How We Fix Them
- Heatlok HFO shrinkage and pull-away. Demilec’s Heatlok HFO line was reformulated for lower global warming potential, but in Dallas attics that regularly hit 140°F in August, we see the foam cure stiff and shrink just enough to separate from the roof deck. That gap lets humid air reach the wood. We remove the loose sections entirely, not just patch over them, then prep the decking for a clean reapplication.
- Sealection 500 open-cell moisture saturation. Open-cell Demilec absorbs water like a sponge when a roof leak or bathroom vent dumps moisture into the attic. Once saturated, the R-value drops to almost nothing and the foam stays wet for months. We cut out the affected sections, find the moisture source, and don’t reinstall until the decking is dry and verified.
- Heatlok Soy 200 off-ratio spray mix. When the A-side and B-side chemical ratios drift off spec during installation, the foam never fully cures. It stays tacky, smells chemical, and off-gasses for years. Owners describe it as a sweet or fishy odor that never goes away. Removal is the only real fix. We take out every trace of the bad batch, because leaving even a few square feet means the smell hangs around.
- Closed-cell delamination from roof decking. Demilec closed-cell can grip the plywood so hard that if it wasn’t applied to clean, dry decking, it eventually pops loose in sheets. You’ll hear creaking in the attic as the foam flexes. We remove the delaminated panels and check the underside of the roof deck for rot before anything new goes back in.
- Incomplete coverage that never hit the right R-value. We run into Dallas Demilec installs where the crew under-applied the foam, sometimes to save material. The homeowner was told they got R-38 and actually got R-19 at the low spots. Bryce Holloway built his name on blower-door diagnostics and getting the R-value right the first time. If we remove foam because coverage was bad, we document exactly what came out and what goes back.
Our Demilec Insulation Removal Process
- 1
We take the call and book the inspection. You reach a live person, not a voicemail. We schedule a window that’s an actual window, not a half-day range, and our tech shows up in uniform with a background check already on file.
- 2
We get in the attic and look. We inspect the Demilec foam for shrinkage, delamination, moisture, and coverage gaps. We also check the ventilation and air sealing while we’re up there, because foam removal without addressing why it failed just sets up the next failure.
- 3
We put the price in your hand. Written line-by-line pricing for removal, disposal, prep, and any replacement insulation. You approve the number before one tool comes off the truck. No surprises at invoice. That’s The Garrison Standard, and it’s how we’ve operated since 2002.
- 4
We remove the Demilec carefully. Closed-cell gets cut and scraped. Open-cell gets bagged in the attic and lowered out. We lay down protection so your living space stays clean, and we haul every bag of foam off-site, not to your curb.
- 5
We check the decking and prep for what’s next. Once the foam is out, we look at the wood, the wiring, and the air leaks. Then we talk through replacement options from eight brands we work with: Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. If you want to go a different direction, we also service Reflectix.
- 6
We finish, clean up, and hand you the written guarantee. Every removal job, like every installation, is covered by our 365-Day Done Right Promise. If it’s not done right, we make it right, and the guarantee is in writing for a full year.
What Demilec Insulation Removal Costs in Dallas
Most Demilec removal jobs in Dallas run between $1,200 and $4,800 depending on attic size, foam type, and how much material is coming out. Here’s how that breaks down:
- Open-cell removal (Sealection 500): $1.50 – $2.25 per square foot. Open-cell cuts and bags faster than closed-cell, which keeps the labor lower.
- Closed-cell removal (Heatlok HFO, Heatlok Soy 200): $2.25 – $3.00 per square foot. Closed-cell bonds hard to wood and takes real scraping time. A 1,200-square-foot attic with closed-cell Demilec usually lands around $2,700 – $3,600.
- Partial removal of a failed section: $500 – $1,200 depending on access and how much a ladder or plank work is involved.
- Full attic removal plus disposal: Add $200 – $500 for haul-off and dump fees depending on volume.
What moves the price is access. A walkable attic with decent headroom is the cheapest job. A low-slope roof with 18 inches of clearance and foam wedged between the trusses takes longer. Call (940) 748-1726 for an exact quote. Estimates are free, and the number we give you is the number on the invoice.
Why Dallas Homeowners Call Alden Insulation Dallas for Demilec Work
Most insulation companies in Dallas will tell you they can remove foam. Few have actually done it more than a handful of times. We’ve pulled Demilec out of attics in Lakewood, East Dallas, Richardson, and Plano, and we know how the product behaves differently depending on when it was sprayed and which line it came from. That experience means a faster job with less mess and no damage to your decking or drywall.
We’re part of the Garrison Partners family, established in 2002, and we operate under The Garrison Code: written prices, written guarantees, background-checked techs who show up inside the window. Our 365-Day Done Right Promise covers the work in writing for a full year. If something fails, we come back and make it right, no charge. And if you’re replacing what we remove, you’ll get straight recommendations across eight brands, including Demilec if you choose to go back with it, plus Reflectix for radiant barrier work. Call (940) 748-1726 and we’ll talk through what you’ve got up there.
FAQs
For small gaps or shrinkage under 10 square feet, targeted removal and reapplication is cheaper than pulling the whole attic. For open-cell that’s water-saturated or closed-cell that’s delaminated in large sheets, full removal usually costs less over time because you’re not paying for repeated patch jobs. Get the R-value right, and the house takes care of the rest. Call (940) 748-1726 and we’ll tell you honestly which path makes sense for your attic.
In most cases, yes. Open-cell removal on a standard attic is a one-day job. Closed-cell takes longer because of the scraping, so plan for one to two days depending on square footage. We’ll give you a timeline in writing before work starts, and the techs who show up are the ones doing the job, not a subcontractor.
Most Demilec warranties cover the foam itself, not the labor or the removal, and most have already lapsed or been voided by installation errors by the time the foam fails. As an independent Demilec service provider, we aren’t authorized by the manufacturer, so we don’t speak for their warranty department. We can document what failed and why, which gives you something concrete to take to Demilec if you still have a valid claim.
No. Once the foam is out, you choose what goes back. We install Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber, plus Reflectix for radiant barrier. We’ll give you a written comparison of the options and the R-value each one will deliver, then you decide.
Same day or next day in most cases. Call (940) 748-1726, a live person answers, and we’ll get a tech out to your Dallas home to look at the attic in person. The quote is free, written, and fixed before any work begins.
Written by Bryce Holloway, Owner, Alden Insulation Dallas at Alden Insulation Dallas, serving Dallas and nearby areas.