Demilec Insulation Removal & Replacement in Pasadena: What to Know First
We remove and replace Demilec spray foam insulation throughout Pasadena, typically completing most attic jobs in one to two days. As an independent Demilec service provider, we’re not tied to the manufacturer, which means we can tell you straight whether a section needs cutting out or whether the whole cavity needs redoing, and we’ll quote the work honestly before we start. If you own a home with Demilec Heatlok HFO, Sealection 500, or APX foam and you’re dealing with moisture, odor, or failing foam, this page is for you. Call (626) 606-2964 and you’ll get a live person, not a recording.
How Demilec Products Fail - and How We Fix Them
- Heatlok HFO Pro shrinkage and cracking. We see this a lot in attics across Pasadena, especially in homes where the foam was applied during a cold snap years ago. Heatlok HFO is a closed-cell foam, and when it pulls away from the rafters it leaves gaps that vent your conditioned air straight out. The fix isn’t to patch over the cracks, it’s to cut out the failed sections, inspect the substrate, and reapply foam correctly. Half-measures just hide the problem.
- Sealection 500 retaining moisture after roof leaks. Sealection 500 is open-cell, which means it breathes, but that also means it acts like a sponge when a roof leak soaks it. In older Pasadena bungalows with original roofing, we regularly pull out Sealection that’s been holding water against the sheathing for months. You can’t dry it in place. It comes out, the decking gets inspected, and new insulation goes in only after everything reads dry.
- APX off-gassing and odor complaints. Demilec APX was used in a lot of retrofits about ten to fifteen years ago, and some homeowners in Pasadena still report a lingering chemical smell, especially in summer when attics hit 140 degrees. When odor is the issue and the foam was installed under the wrong conditions, removal is the only real fix. We’ll test the space, document what we find, and replace it with a product that suits the house.
- Rodent damage to Demilec foam. Rats and squirrels in Pasadena chew through spray foam like it’s nothing, especially where it’s exposed in crawl spaces and eave gaps. We see tunneled Heatlok and Sealection on a regular basis. The removal includes cleaning out the contaminated material and sealing entry points before new insulation goes in, otherwise you’re just re-insulating a rodent highway.
- Improper original installation, particularly around can lights and vents. Some Demilec jobs we’ve removed in Pasadena were done by crews that foamed right over recessed lighting housings or blocked soffit vents. That’s a fire hazard with the lights and a moisture trap with the vents. We cut out the bad work, clear the airflow, and reinstall with proper clearances.
Our Demilec Insulation Removal & Replacement Process
Here’s how a typical Demilec removal job goes with us, from your first call to the day we leave your house clean:
- 1
You call, a person answers. Walt’s team picks up live at (626) 606-2964, any hour. We ask the right questions about your Demilec product, the symptoms you’re seeing, and schedule a visit that works.
- 2
We inspect and diagnose. A background-checked, uniformed tech comes out, checks the foam in place, tests moisture levels where relevant, and tells you what’s actually wrong. No guessing, no upsell.
- 3
You get upfront pricing. We write the quote in plain English before any work starts. If you already have a written estimate from another contractor, bring it, our second opinion is free.
- 4
We remove the failed Demilec insulation. Crews are equipped for full containment, including HEPA vacuums for old foam dust and proper disposal. We treat your Pasadena home like it’s our own.
- 5
We replace with the right product. Sometimes that’s new Demilec foam, sometimes it’s Rockwool, Owens Corning, or CertainTeed depending on the cavity and your goals. We install what the house needs, not what’s easiest.
- 6
We test, clean up, and stand behind it. We verify the new insulation is performing, leave your home cleaner than we found it, and back every job with the Done Right Promise: if it’s not done right, we make it right, no runaround.
What Demilec Insulation Removal & Replacement Costs in Pasadena
Honest numbers help you plan, so here’s what we typically see in Pasadena:
- Small spot removal and patch (under 100 sq ft): $600-$1,400
- Partial attic removal and replacement (up to 500 sq ft): $1,800-$4,500
- Full attic Demilec removal and re-insulation: $4,000-$9,500 depending on attic size, access, and disposal weight
- Contaminated or water-damaged insulation removal: adds $500-$1,800 for containment and disposal
What moves the price is access (Pasadena attics with tight clearances cost more to work in), foam thickness, and whether we’re dealing with contamination. Every quote is itemized before work starts, and remember you get $40 off any repair over $200 and 10% off for seniors and veterans, always. Call (626) 606-2964 for a free estimate.
Why Pasadena Homeowners Call Walt’s Insulation for Demilec Work
We’ve been the one down the road since 2000, and we’re not going anywhere. This is an owner-operated business with a published address and a license number you can look up. When we remove Demilec insulation from a Pasadena home, the same crew that shows up is the crew that finishes the job, in uniform and background-checked. We also work across brands, so if your home has Reflectix in one area and Demilec foam in another, we can handle both without bringing in another contractor. And every job, every single one, is covered by our lifetime Done Right Promise. If it’s not done right, we make it right. That’s the whole point of hiring a local company with a real name attached, Walt Brenner has been straight with people since his first San Antonio summer taught him what bad insulation feels like.
We answer the phone live because your house doesn’t keep business hours, and neither do we.
FAQs
Yes, in most cases we can start Demilec removal the same day you call, especially for smaller job sites in Pasadena. Larger full-attic removals may need a next-day start to bring the right containment equipment. Call (626) 606-2964 and we’ll tell you over the phone how quickly we can get a crew out.
In most cases, no, but the answer depends on the warranty terms you received at install and whether the original installer is still in business. As an independent Demilec service provider, we won’t make warranty claims for you, but we’ll document everything so you can. We’re also honest about whether a full removal is even necessary, sometimes a partial cut-out is all the problem requires.
Repair is cheaper when the problem is small, like a cracked section of Heatlok HFO under 100 square feet. Replacement makes more sense when the foam is waterlogged, rodent-contaminated, or failing across broad sections. We’ll show you the numbers for both options before you commit.
Most full attic Demilec removals in Pasadena are completed in one to two working days, including cleanup and disposal. Larger custom homes or severely contaminated spaces may take three. We give you a firm timeline in writing before we start.
We replace removed Demilec foam with the product that fits your home’s construction and climate needs, which in Pasadena may be new spray foam, Rockwool batts, Owens Corning blow-in, or CertainTeed. We install what performs best for your specific attic and walls, not just whatever’s already on the truck.
Written by Walt Brenner, Owner, Walt’s Insulation at Walt’s Insulation, serving Pasadena and nearby areas.