Demilec Insulation Removal in Pasadena: What to Know First
We remove Demilec spray foam insulation in Pasadena homes, typically completing most attic removals in one to two days depending on square footage and foam thickness. Demilec open-cell and closed-cell products bond hard to roof decking and framing, so removal is not a peel-and-bag job: it takes scraping, specialized tools, and a crew that knows where the foam hides. Most Demilec removal projects in Pasadena run $1,800 to $5,200 for a standard attic, and you’ll have a written price in hand before we start.
This page is for Pasadena homeowners who have Demilec insulation that needs to come out, whether the foam was misapplied, moisture has gotten behind it, or a remodel requires access to wiring and framing. If you’re in that spot, call us at (626) 628-2368. We’re an independent Demilec service provider, not a factory-authorized shop, which means we tell you what the foam is actually doing and what removal will actually cost, without a sales script attached.
Key Takeaways:
- Demilec removal in Pasadena typically takes one to two days and costs $1,800 to $5,200 for most attics.
- Open-cell foam removal is faster than closed-cell, but closed-cell hides moisture problems better, which changes the job.
- You get a written price before work starts, and a 365-day written guarantee after it’s done.
- A live person answers our phone 24/7. Not a form. Not a callback queue.
How Demilec Products Fail – and How We Fix Them
We’ve pulled Demilec foam out of more Pasadena attics than we can count, and certain lines show up with predictable problems. Here’s what we see, why it happens, and what we do about it.
- Heatlok HFO (closed-cell) shrinking off the rafters. In Pasadena’s dry heat, closed-cell foam can pull away from framing as the wood expands and contracts through summer-to-winter swings. The telltale sign is a hairline gap where the rafter meets the foam, and you’ll feel a draft near the eaves. The fix is full removal of the affected sections and, if you choose, re-insulation with a product matched to the attic’s ventilation profile. We don’t patch shrinking foam; it always shrinks again.
- Sealection 500 (open-cell) turning to dust along the roof deck. Open-cell Demilec sprayed against a hot Pasadena roof can degrade where temperatures stay above 130°F for months. You’ll find a fine yellow powder on top of stored boxes or on the attic floor. That foam cannot be salvaged. We remove it, vacuum every surface, and recommend a replacement insulation that tolerates the heat load.
- Moisture trapped behind closed-cell foam on older Pasadena homes. Demilec’s closed-cell lines act as a vapor barrier. On a 1920s bungalow near the Pasadena Civic Auditorium, that barrier can trap moisture against old-growth framing and feed dry rot. The homeowner smells damp but can’t find the leak. When we remove the foam, we often find the leak that the foam was hiding. That’s the real fix: pull the foam, expose the framing, let it dry, then address the insulation.
- Off-ratio foam on the lower slopes of the roof line. Demilec two-component systems can go off-ratio when the spray rig runs hot or a hose clogs mid-job. Off-ratio closed-cell stays sticky, smells like fish, or cures brittle. We see it most on the lower roof slopes where the installer worked last. Removal is the only fix. The foam won’t cure later, no matter how long you wait.
- AGM and APEX series overspray around recessed lights and vents. Homeowners with Demilec AGM or APEX product sometimes find foam lumps around can lights, plumbing stacks, or gable vents, usually from a rushed install. It blocks ventilation and overloads junction boxes. We remove the overspray carefully around the fixtures, clean the ventilation paths, and leave the accessible areas ready for inspection.
Our Demilec Insulation Removal Process
Every Demilec job we do in Pasadena follows the same sequence. No skipped steps. No shortcuts when it comes to reclaiming your attic.
- 1
You call, a live person answers. We ask what product you have, if you know it, the year the foam went in, and what you’re seeing. If you don’t know the product, we’ll identify it on site.
- 2
Site inspection and foam identification. Our techs confirm whether you’re dealing with open-cell or closed-cell Demilec, measure square footage and foam depth, and check for hidden moisture with a probe meter. We look behind the foam, not just at it.
- 3
Written price. You receive a written quote before any tool comes off the truck. It covers removal labor, disposal, cleanup, and any access work. The number you approve is the number on the invoice.
- 4
Removal day. We seal off the attic access, run negative-pressure ventilation, and remove the foam with scrapers, oscillating tools, and vacuum extraction. Closed-cell takes longer; open-cell moves faster. Either way, we protect your ceilings and floors from debris.
- 5
Cleanup and inspection. When the foam is out, we vacuum the attic surfaces, remove all debris, and leave the space cleaner than we found it. We walk through the attic with you before we pack up.
- 6
Written guarantee. Every Demilec removal gets our 365-Day Done Right Promise in writing. If something related to our work fails within a year, we come back at no charge. A free second visit is part of the guarantee. That’s the whole point of it.
What Demilec Insulation Removal Costs in Pasadena
| Scenario | Typical Cost Range |
|---|---|
| Small open-cell removal (partial attic, <400 sq ft) | $1,800 – $2,600 |
| Standard open-cell removal (400 – 900 sq ft attic) | $2,200 – $3,400 |
| Standard closed-cell removal (400 – 900 sq ft attic) | $2,800 – $4,500 |
| Full closed-cell removal with moisture remediation prep | $3,500 – $5,200 |
| Overspray cleanup around fixtures and vents | $450 – $900 |
What moves the price: foam type (closed-cell is denser and slower to remove), foam thickness, attic height and accessibility, and whether the foam has pulled away from framing in a way that requires extra care around wiring. If we find active leaks or rot behind the foam, we’ll show you before we do anything else, and the written price will already account for what we can see. Call (626) 628-2368 for an exact quote on your Pasadena attic. Estimates are free, and they’re real numbers, not a placeholder.
Why Pasadena Homeowners Call Alden Insulation Pasadena for Demilec Work
We’re part of the Garrison Partners family, established 2002, and every Demilec removal we do in Pasadena is held to The Garrison Standard. That’s our operating code: written prices, written guarantees, background-checked technicians in uniform, and a live person on the phone when you call, day or night. The crew that walks into your home is the crew you approved. No subcontractor roulette.
We remove and install insulation using products from eight industry-respected brands, including Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. That matters because when your Demilec foam comes out, you may want a different product in. We also service Reflectix radiant barrier, which is common in Pasadena attics as a heat-reflective supplement. Bryce Holloway, our owner, grew up in Los Angeles and trained at Los Angeles Trade-Technical College before spending close to two decades on insulation work across the San Gabriel Valley. He and the crew have torn out enough failed foam to know what’s salvageable and what isn’t. Seal it right the first time, the attic doesn’t give second chances.
FAQs
Demilec’s limited warranty covers product failure under specific conditions, but it typically does not cover removal labor, and many Pasadena homeowners find that installer error or moisture issues fall outside the warranty’s scope. We’re an independent Demilec service provider, so we can’t speak for the manufacturer, but we’ll help you document everything needed if you want to pursue a claim. Call (626) 628-2368 and we’ll walk you through what to photograph and what to document before removal begins.
Yes, with the right technique, and that technique is the difference between an attic you can reuse and a repair bill. Our techs scrape and oscillate the foam off in layers rather than gouging at the wood, and we check the decking as we go. On older Pasadena homes with original decking, that care matters. The written guarantee covers our removal work for 365 days.
We can usually start a Demilec removal within a few business days, and urgent cases, like water actively running behind foam or a rodent infestation, can often be prioritized. A live person answers our phone 24/7, and we won’t leave you guessing about the schedule.
That depends on what we find behind the foam. If the removal was due to moisture issues, you’ll want air sealing and a moisture-tolerant insulation. If the foam was simply installed badly in the wrong application, we can recommend a product from our brands list that fits your attic’s actual conditions. We give you the straight assessment and a written price for any replacement; the decision stays yours with no pressure applied.
Our residential work in Pasadena focuses on attic insulation, blown-in insulation, and insulation removal, which includes Demilec foam removal in attics and the accessible spaces connected to them. If the foam is in a wall cavity behind drywall, the removal job becomes a much larger scope, and we’ll tell you honestly if it’s outside what we do.
Written by Bryce Holloway, Owner, Alden Insulation Pasadena at Alden Insulation Pasadena, serving Pasadena and nearby areas.