Demilec Insulation Removal Nationwide

Demilec Insulation Removal in Long Beach: What to Know First

Demilec spray foam insulation removal in Long Beach typically runs $2.50 to $5.50 per square foot depending on whether you’re dealing with open-cell or closed-cell foam, how thick it was applied, and whether it’s adhered to rafters or sitting in wall cavities. Most Demilec removal jobs in Long Beach take one to three days, and we schedule within the week you call. We’re an independent Demilec service provider – not affiliated with or authorized by Demilec – and we give you a written price before any tool comes off the truck.

Call (562) 317-6204

This page is for Long Beach homeowners who have Demilec insulation that’s failed, gotten wet, or was installed badly and now needs to come out. If that’s you, call (562) 317-6204 and a live person answers, day or night.

How Demilec Products Fail – and How We Fix Them

Demilec makes solid spray foam. But like every insulation brand, certain product lines have failure patterns we see repeatedly in Long Beach attics. Here’s what we encounter most often:

• Demilec Sealection 500 (open-cell) – moisture retention after roof leaks. Sealection 500 is a half-pound open-cell foam. It’s vapor-permeable by design, which is fine in a dry attic. But when a Long Beach roof leaks during winter rains, this foam absorbs water like a sponge and holds it against the sheathing. Homeowners notice a musty smell long before they see a stain. The fix is full removal of the saturated sections, drying out the framing, and air sealing before new insulation goes in. We see this constantly in older Belmont Shore bungalows where roofs are original or near end of life.
• Demilec Heatlok HFO (closed-cell) – adhesion failure from humid install days. Heatlok HFO is a two-pound closed-cell foam that should bond aggressively to the substrate. But if it was sprayed on a humid day or onto dusty OSB, the foam can delaminate in sheets within a year or two. Homeowners find sagging chunks of rigid foam in the attic and gaps where the foam pulled away from rafters. Removal here means cutting out the unbonded sections and checking the surrounding foam for hidden voids. Scraping alone won’t tell you where the next section is about to let go.
• Demilec Aqualite (closed-cell, marine-grade) – over-application in retrofit walls. Aqualite is technically a marine foam, but we’ve found it in plenty of Long Beach homes where a previous contractor used whatever was on the truck. It’s dense and unforgiving. Over-sprayed into wall cavities, it can bow drywall and make interior trim pop. Extraction from a finished wall is slow, careful work – we cut access panels rather than tearing out whole sheets of drywall when the framing allows.
• Demilec Polar Foam (open-cell) – settling and thickness inconsistency. Polar Foam likes to go on thicker than a half-pound open-cell should. When it’s over-applied, the center of the foam mass doesn’t cure properly and stays soft and gummy for weeks. Homeowners notice because the attic never stops smelling faintly chemical. Soft, uncured foam has to be removed completely and re-sprayed or replaced with a different system. You can’t cure it after the fact.
• Wet Demilec of any line – the Long Beach humidity problem. Long Beach sits in a marine layer for part of the year. Attics here run humid even when the rest of the house feels dry. Any Demilec product that’s been wet from a leak or condensation will harbor mold inside the foam cell structure. You won’t see it from the surface. By the time you smell it, the mold is established and the only real fix is removing the entire affected section. Bleach sprays and surface cleaning do not reach into closed-cell foam.

Our Demilec Insulation Removal Process

Here’s how a typical Demilec removal job works when you call Alden Insulation Long Beach:

1. 1
   Assessment and written scope. We inspect the attic or wall cavity, identify which Demilec product you have, and map the removal area. You get a written line-item price for the full job before we start. That number does not change at invoice.
2. 2
   Containment setup. Spray foam removal creates dust and debris. We seal off the work area with plastic and run negative air pressure so foam particles don’t travel through the rest of your Long Beach home.
3. 3
   Mechanical extraction. For open-cell foam like Sealection 500 or Polar Foam, we use an insulation removal vacuum system rated for spray foam. For closed-cell lines like Heatlok HFO and Aqualite, we combine cutting, scraping, and vacuum extraction. Closed-cell doesn’t vacuum cleanly – it has to be worked off the substrate.
4. 4
   Substrate inspection. After the foam is out, we inspect the sheathing, rafters, or studs underneath for moisture damage, rot, or wiring damage from the original foam install. If framing is compromised, we tell you exactly what we found and what it means before proceeding.
5. 5
   Air sealing and repair. We address any air leaks that contributed to the problem, then discuss replacement options. You’re not obligated to re-insulate with Demilec again – we install products from eight brands, including Reflectix, so you can make an informed choice.
6. 6
   Cleanup and written guarantee. We leave the space cleaner than we found it, and every Demilec removal job carries the 365-Day Done Right Promise in writing. If something fails within a year, we return at no charge.

What Demilec Insulation Removal Costs in Long Beach

Demilec removal pricing tracks foam type and depth more than square footage alone. Here’s what Long Beach homeowners can expect based on the jobs we quote most often:

• Open-cell removal (Sealection 500, Polar Foam) from an attic: $3.00 to $4.50 per square foot of foam surface area. A typical 1,200-square-foot Long Beach attic with foam along the roofline runs $3,600 to $5,400.
• Closed-cell removal (Heatlok HFO, Aqualite): $4.50 to $5.50 per square foot. The same 1,200-square-foot attic with closed-cell foam runs $5,400 to $6,600 because closed-cell is denser, tougher to cut, and slower to extract.
• Wall cavity removal: $40 to $75 per linear foot of wall depending on cavity width and whether we can work through access cuts or need drywall removal.

What moves the price: foam thickness, how many roof bays or wall cavities are affected, whether the attic has accessible walkways, and whether framing repair is needed after extraction. We don’t quote over the phone blind – we come look at the job and hand you a written price. Estimates are free. Call (562) 317-6204 to set one up.

Why Long Beach Homeowners Call Alden Insulation Long Beach for Demilec Work

Alden Insulation Long Beach is part of the Garrison Partners family, which has been running insulation crews since 2002. Every job we do operates under The Garrison Standard: written prices, written guarantees, background-checked technicians in uniform, and arrival inside the scheduled window. That standard applies to a full Demilec removal in Naples or a single-wall extraction in Bixby Knolls – no exceptions for job size.

Most importantly for Demilec owners, our techs know the product. That matters because spray foam is not a forgiving material. You want a crew that can tell Sealection 500 from Heatlok HFO by look and touch, knows how closed-cell behaves when you cut into it, and won’t leave hidden foam fragments behind that rot out later. We also remove and install insulation from seven other brands alongside Demilec – Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, GreenFiber, and Reflectix – so when the old foam comes out, we can offer you replacement options without pushing you back into the same product that failed.

Bryce Holloway, who owns Alden Insulation Long Beach, learned this trade through the building construction program at Los Angeles Trade-Technical College and spent two decades running crews across Long Beach, including plenty of Belmont Shore bungalows with attics that hadn’t been opened since the 1970s. He built this operation on a straightforward idea: give homeowners an honest assessment, quote a fair number, and leave the attic better than you found it. Good insulation doesn’t announce itself – you just stop noticing the cold.

FAQs: Demilec Insulation Removal in Long Beach