Demilec Insulation Removal & Replacement in West Hollywood: What to Know First
Demilec insulation removal and replacement in West Hollywood typically runs $2,800 to $7,500 depending on square footage, ceiling height, and what the existing material looks like. We complete most Demilec jobs in one to two days, and we’re an independent Demilec service provider - not a manufacturer rep, which means we tell you when removal makes sense and when it doesn’t. If you own a West Hollywood home with Demilec spray foam or blanket insulation that’s degraded, water-damaged, or improperly installed, this page covers what you need to know. Call (213) 527-4062 and you’ll get a live person, day or night.
This page is for West Hollywood homeowners dealing with Demilec insulation that needs to come out - whether it’s failing open-cell foam, moisture-compromised closed-cell, or old Demilec batts that predate current building codes. You’ll learn what goes wrong with Demilec products specifically, what removal actually involves, and what honest pricing looks like in this market.
How Demilec Products Fail - and How We Fix Them
- Heatlok HFO open-cell foam shrink-back. We see this in West Hollywood attics that bake under summer heat. Demilec’s open-cell formulations can pull away from rafters over time, leaving hairline gaps that leak conditioned air. The fix is mechanical removal with oscillating blades, not chemical strips - in older West Hollywood homes near the Santa Monica Boulevard corridor, those gaps often hide framing issues we address before re-insulating.
- Sealection 500 water retention in flat-roof buildings. West Hollywood has plenty of flat and low-slope roofs, and when flashing fails, water pools against Demilec closed-cell foam. Closed-cell won’t rot, but it traps moisture against the decking. We remove the saturated section, dry the framing, and replace with new Demilec or an equivalent closed-cell product. You can’t just spray over it - the trapped water keeps eating the structure underneath.
- Demilec SPF that was never trimmed properly. Overspray happens. When installers over-apply and don’t trim back, you get foam squeezing past drywall lines and blocking soffit vents in West Hollywood’s tighter attics. We cut it back, restore the vent channel, and re-balance the attic’s airflow. This is a symptom-and-cause fix - the overspray is the symptom, the missing trimming step is the cause you won’t find on Demilec’s site.
- Old Demilec batts compressed by storage or foot traffic. Homes along Palm Avenue and north of Santa Monica have attics that double as storage. Compression strips insulation of its R-value. We remove, assess whether the batts can be re-fluffed (rarely worth it) or need replacement, and install new material at full loft. We’ll also air-seal before laying anything down - compressed batts usually mean the air sealing was never done.
- Rodent contamination in Demilec foam. West Hollywood’s mature tree canopy means squirrels and roof rats find their way in. When they nest in open-cell Demilec, the foam absorbs everything. You need full removal and sanitizing before re-insulating - spot treatment just leaves the contaminated material in place. We do the removal, sanitize the deck and framing, seal entry points, and re-insulate with a product that makes sense for the space.
Our Demilec Insulation Removal & Replacement Process
- 1
We start with a real inspection. You call (213) 527-4062, we schedule a visit, and one of our technicians checks the Demilec material in place - depth, moisture levels, attachment, and whether the attic has ventilation or air sealing problems that caused the failure in the first place. No charge for the trip inside our service county.
- 2
We tell you what you’re looking at. Honest assessment of whether the Demilec needs full removal or targeted replacement. If we think repair makes more sense than removal, we say so - we’re not commission-driven, and we’d rather do the right job than the bigger job.
- 3
We remove the old material. Mechanical extraction for foam, vacuum collection for loose material, and manual bagging for batts. We contain the work area, protect your floors and belongings, and keep dust out of your living space with negative air pressure where needed.
- 4
We inspect and correct what’s underneath. This is where a lot of West Hollywood homes reveal their real problems - rotted decking, disconnected bathroom vents, air gaps around can lights. We fix what we find and show you photos before anything goes back in.
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We install the replacement. Depending on your home’s needs, we’ll re-insulate with Demilec or another product that fits - Owens Corning, Rockwool, Knauf, CertainTeed, and Icynene are all in our kit, plus Reflectix for radiant barrier applications. We’re not married to one brand; we’re married to the right product for your attic.
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We walk you through the done job. You see photos, you see the measurements, you get a written scope of what was done. And it’s all backed by the Done Right Promise: if it’s not done right, we make it right - no runaround, no arguing, no fine print.
What Demilec Insulation Removal & Replacement Costs in West Hollywood
| Job Scenario | Typical Range |
|---|---|
| Targeted Demilec removal (small section, up to 100 sq ft) | $800 - $1,600 |
| Full attic Demilec removal (800-1,200 sq ft) | $2,200 - $4,300 |
| Full removal + air sealing + new insulation | $3,500 - $7,500 |
| Contaminated or rodent-damaged removal + sanitizing | Add $600 - $1,400 to removal cost |
| Re-insulation only (open-cell or closed-cell foam) | $2,800 - $5,800 |
What moves the price: attic height and access, how much Demilec material is present, whether it’s open-cell (easier to remove) or closed-cell (harder, more labor), and whether we find framing repairs or air sealing needs once the old insulation is out. Every job gets upfront pricing before work starts - no surprises at the end. Call (213) 527-4062 for a free estimate, and ask about our standing offers: $40 off any repair over $200, a free second opinion on any written estimate, and a permanent 10% discount for seniors and veterans.
Why West Hollywood Homeowners Call Walt’s Insulation for Demilec Work
We’ve been doing this since 2000, and we’re the one down the road - a locally owned, owner-operated shop with a published address and license number, not an 800 number that routes to a call center somewhere. Walt Brenner started this business the same year and still answers the phone himself half the time. When you call about your Demilec insulation in West Hollywood, you talk to someone who has actually crawled through West Hollywood attics - not a dispatcher reading from a script.
Our technicians are background-checked and uniformed, so you know exactly who’s walking through your door. We answer live 24/7 - no voicemail, no automated messages. And every Demilec removal and replacement job we do is covered by the Done Right Promise for life. If it’s not done right, we come back and make it right. That’s the whole promise. We do the job right the first time - because coming back to fix it isn’t good for either of us.
We work with Demilec products on removal and replacement jobs, and we also carry Reflectix, Owens Corning, Rockwool, and other major brands - so when we recommend a replacement material, it’s because it fits your home, not because it’s the only thing on our truck.
FAQs
Does removing Demilec insulation void the manufacturer warranty? Demilec’s product warranty covers manufacturing defects, not installation labor or removal - but if the foam failed because of improper installation, the original installer’s workmanship warranty may still apply. As an independent Demilec service provider, we document everything with photos and moisture readings so you can pursue a claim if one exists. Call us and we’ll tell you honestly whether it’s worth pursuing before you spend money on removal.
How fast can you remove and replace Demilec insulation in West Hollywood? Most West Hollywood Demilec removal and replacement jobs are done in one to two days. We answer the phone 24/7, and within our service county there’s no trip charge for the initial inspection - so you can get an assessment fast, often same-week.
Is it cheaper to repair Demilec foam or remove and replace it? It depends on the failure mode. Small shrink-back gaps can sometimes be filled without full removal, and that runs well under $1,000. But if you have water saturation, rodent contamination, or widespread adhesion failure, targeted repair just postpones bigger problems. We’ll tell you which situation you have and quote both paths when both are viable, so you decide with real numbers in front of you.
What insulation should replace my Demilec foam? That depends on what the Demilec was doing and where it was installed. In West Hollywood attics with proper venting, open-cell foam or blown-in fiberglass from Owens Corning or Knauf often makes the most sense. In tight cathedral ceilings or flat-roof scenarios, closed-cell foam - Demilec or Icynene - may be the right call. We match the product to the building, not the other way around.
Do you remove vermiculite or old Demilec batts too? Yes - we handle vermiculite and old blanket insulation removal across West Hollywood, including attics that haven’t been opened in decades. As a practical note: if your attic has vermiculite, we treat it as presumed asbestos-containing until testing says otherwise, and we’ll coordinate proper handling so you and your family stay safe.
Can you come today if I have water leaking into my Demilec insulation? Call us at (213) 527-4062. We answer live around the clock, and for active water intrusion in West Hollywood we prioritize getting someone out fast. The sooner saturated foam comes out, the less framing damage you’re dealing with underneath.
Get in touch. If you’ve got Demilec insulation in a West Hollywood home that isn’t doing its job - or if you suspect it’s hiding a moisture or pest problem - call Walt’s Insulation at (213) 527-4062. We’ll send out a technician, give you a straight answer, and quote the job honestly. Free estimates, free second opinions on any written estimate, no trip charge in our service county. And 10% off for seniors and veterans - always.
Written by Walt Brenner, Owner, Walt’s Insulation at Walt’s Insulation, serving West Hollywood and nearby areas.