Demilec Insulation Removal in Los Angeles: What to Know First
Demilec insulation removal in Los Angeles typically runs $1,800 to $6,200 depending on square footage, accessibility, and which Demilec product is coming out. Most full removals are done in one to three days, and the price we quote before work starts is the price you pay, period. If you’ve got failed, wet, or rodent-damaged Demilec foam or fiberglass in your attic or walls, we remove it cleanly and prep the space for whatever goes back in.
This page is for Los Angeles homeowners who bought a home with Demilec insulation already installed, or who had it sprayed years ago and now suspect it’s failing. Chase Whitaker and the Laurel Attic Insulation Los Angeles team handle Demilec extraction jobs across LA, from Silverlake to the Valley. Call (213) 698-7067 and we’ll talk through what you’re seeing before we ever schedule a truck.
How Demilec Products Fail – and How We Fix Them
Demilec makes solid products, but any insulation can fail under the wrong conditions. Here’s what we actually find in Los Angeles attics and walls, and what we do about it.
- Heatlok HFO open-cell foam losing adhesion. Heatlok HFO is Demilec’s open-cell spray foam lineup, and in LA attics with poor ventilation we regularly see it pulling away from roof decking. The cause is usually condensation cycling: warm attic air hits the cool foam surface, moisture works into the interface, and the bond weakens over three to eight years. Once it’s sagging or separated, removing it is the only honest fix. We cut it out in sections, inspect the decking for moisture damage, and leave the surface ready for a fresh application.
- Sealection 500 holding moisture against framing. Sealection 500 is a closed-cell product, but we’ve pulled it out of older Los Angeles homes where it was sprayed over the wrong substrate or before the framing fully dried. Closed-cell traps moisture against wood, and that means hidden rot you won’t see until the foam comes out. We photograph everything as we remove it, show you what was going on underneath, and make recommendations based on what we actually find, not what a brochure says.
- Demilec soy-based open-cell (older installs) breaking down into dust. Homes insulated fifteen-plus years ago with early Demilec soy blends sometimes end up with foam that has dried, stiffened, and started crumbling at the edges. It loses its air-seal capability and becomes a particulate problem. Removal means negative-air containment so that dust doesn’t spread through the house, then bagging and hauling it out. This is slow, careful work, and it’s why we run a HEPA-filtered vacuum setup on every Demilec extraction job.
- Rodent intrusion through open-cell foam in crawlspaces and attics. Open-cell Heatlok is soft enough for LA roof rats to tunnel through. We’ve removed foam from attics in Echo Park and Highland Park where you could trace entire rat highways through the insulation. The fix is full removal, sanitation of the area, sealing every entry point, and then a re-insulation plan that accounts for the local rodent pressure. If you skip the removal and just patch, they’ll be back.
- Overspray and installation errors from the original contractor. Not every Demilec problem is the product’s fault. We see jobs where the installer sprayed too thick in a single pass, creating internal hot spots that never cured, or where foam was applied over dusty, unprepared surfaces and never bonded. Chase has walked dozens of these attics across the LA basin, and the pattern is usually the same: the homeowner paid for premium foam and got an installer who rushed. We remove the bad work and redo it correctly.
Our Demilec Insulation Removal Process
Every Demilec removal follows the same disciplined sequence, whether it’s a 200-square-foot attic or a full wall cavity job.
- 1
We assess and quote in writing. We inspect the affected areas, identify which Demilec product is present, check for moisture or pest issues, and hand you a written price before any work begins. No surprises at the door, no change orders without your sign-off.
- 2
We set up containment. Tarps, floor protection, and negative-air filtration keep dust and particulates contained to the work zone. Demilec removal is dusty work; we treat your home like you’ll be breathing the air in it later, because you will.
- 3
We remove the material. Foam is cut and scraped in sections, bagged immediately, and staged for haul-off. Fiberglass Demilec products come out by the bagful. We don’t rush this step, because a rushed removal leaves residue that causes problems later.
- 4
We inspect what’s underneath. This is where you find out what the insulation was hiding. Framing condition, moisture damage, wiring issues, pest entry points – we document everything with photos and walk you through it.
- 5
We prep for what’s next. Every Laurel removal ends with the space clean, dry, and ready for new insulation. If you’re re-insulating with us, we’ll have already recommended the right product for the space. If you’re using another contractor, we’ll leave it ready for them.
- 6
You get the written guarantee and photo proof. Before-and-after photos of the entire job, delivered with a digital invoice you can pay from a link. The 365-Day Done Right Promise covers the removal workmanship in writing.
What Demilec Insulation Removal Costs in Los Angeles
Here’s what we charge for the most common Demilec removal scenarios in Los Angeles. These include labor, containment, bagging, and haul-off.
- Small attic spot removal (under 300 sq ft, one to two affected areas): $1,800 to $3,200
- Full attic foam removal (500 to 1,000 sq ft of open-cell or closed-cell): $3,000 to $5,800
- Wall cavity removal (per affected wall section, opened and re-closed): $900 to $2,400 per section
- Rodent-damaged foam removal with sanitation (attic or crawlspace): $3,500 to $6,200
The two factors that move price most are square footage and accessibility. A wide-open attic with standing room is faster than a low-slope crawlspace where we’re working on our knees. Demilec closed-cell is also more labor-intensive to remove than open-cell, because it’s denser and requires more mechanical effort per square foot. Every quote includes the Relay Visibility Guarantee: a written price before work starts, live technician tracking, and photo proof when the job’s done. Call (213) 698-7067 and we’ll give you an exact number for your specific attic or wall cavity.
Why Los Angeles Homeowners Call Laurel Attic Insulation Los Angeles for Demilec Work
Most contractors in Los Angeles will tell you they can remove spray foam. Few have pulled out as much Demilec as our team has, and even fewer will hand you a written price before anyone touches a ladder. We’re part of the Relay Home Co. family, which means our techs arrive at a live, trackable time, not a vague window, and you get before-and-after photos of every stage. The 365-Day Done Right Promise covers the workmanship in writing, and if the removal doesn’t hold up, we come back free. We also carry seven other insulation brands on our trucks, including Reflectix, so if your Demilec removal turns into a re-insulation, we can match the right product to the job. Chase Whitaker has been doing insulation work across LA for fifteen years, and he’ll tell you the truth about your attic even when the truth is ugly. That’s the whole point.
FAQs
As an independent Demilec service provider, we don’t control Demilec’s warranty decisions, but in almost every case we see, removal is happening because the warranty has already expired or the original installer is out of business. If you have an active warranty claim, contact Demilec first and keep documentation of everything. If you’re past warranty, removal and replacement is usually the most cost-effective path forward, and we’ll walk you through that math honestly.
Most Demilec removals are scheduled within a week of your call, and emergency jobs can often be scheduled sooner if you’re dealing with active moisture or pest issues. The work itself typically takes one to three days. Call (213) 698-7067 and we’ll give you a real arrival window, not “sometime next month.”
For small problem areas, spot removal and re-application can run under $2,000. For widespread adhesion failure, moisture saturation, or rodent damage, full removal and re-insulation is usually cheaper per square foot than trying to patch a failing system repeatedly. We’ll show you the numbers for both options before you commit to anything, and we won’t push the more expensive route unless it’s genuinely the right call.
Not effectively, and we won’t pretend otherwise. Wall cavity Demilec removal requires opening the wall section, extracting the foam, and closing it back up. There are contractors in Los Angeles who claim they can remove foam through small drill holes; we’ve seen the results of that approach, and it leaves material behind. We do it right, with clean openings and proper re-finishing, and we quote the full scope up front.
All removed material is bagged on site and hauled to a licensed Los Angeles disposal facility. We don’t leave bags in your yard and we don’t dump material in your trash bins. The haul-off is included in your written quote, and you’ll see the disposal line item on your invoice.
Have a Demilec product failing in your Los Angeles home? Call (213) 698-7067 today. We’ll ask a few questions, give you a straight answer, and if it makes sense, get a written quote in your hands before anyone touches the ladder. If your attic is the problem, we’ll tell you – and then we’ll fix it for a number you can actually plan around.
Written by Chase Whitaker, Owner, Laurel Attic Insulation Los Angeles at Laurel Attic Insulation Los Angeles, serving Los Angeles and nearby areas.