Demilec Insulation Removal & Replacement Nationwide

Demilec Insulation Removal & Replacement in Burbank: What to Know First

Demilec spray foam removal and replacement in Burbank typically runs $3,800 to $9,600 depending on the area involved, and we complete most full-attic jobs in one to two working days. We’re an independent Demilec service provider, which means we diagnose and fix the insulation itself without any manufacturer-runaround on warranty questions. If you own a Burbank home with Demilec foam that’s failing, off-gassing, moisture-compromised, or simply underperforming, this page covers exactly what we find, what we do, and what it costs. Call (747) 837-5834 and a live person answers, any hour.

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How Demilec Products Fail - and How We Fix Them

Demilec makes closed-cell and open-cell spray polyurethane foam under several well-known lines. In Burbank’s climate, we see predictable failure patterns in each. Here’s what we find most often:

• Heatlok HFO Pro / Heatlok Soya off-ratio foam. This is the closed-cell line most common in Burbank crawl spaces and attics. When the A-side and B-side chemicals aren’t heated or mixed correctly at the gun, the foam cures with a greasy surface, turns dark amber instead of pale yellow, and never reaches full rigidity. It crumbles under light pressure. Homeowners notice a persistent chemical odor that lingers even years later. That’s off-ratio foam, and the only real fix is removal down to the substrate, then reapplication by a crew that monitors temperatures while spraying. We pull it all out, inspect the sheathing for chemical residue, and reinstall with a fresh Demilec or equivalent closed-cell system on ratio.
• Sealection 500 shrinkage and air-gap voids. Sealection 500 is Demilec’s open-cell, low-density line. In Burbank attics, we see it shrink back from rafters over five to eight years, especially in homes near the Verdugo Mountains where summer attic temperatures push 140°F and winter brings wide humidity swings. The foam pulls away from the roof deck, leaving hairline gaps where conditioned air escapes. You won’t see it from the hatch; you feel it as rooms that won’t hold temperature. We remove the compromised sections, air-seal the gaps properly, and replace with a material suited to the specific attic conditions.
• Heatlok HFO High Lift overspray and flaking on ductwork. Some Burbank contractors sprayed Demilec closed-cell directly over uninsulated metal ducts. Over time the foam delaminates from the galvanized surface in thin sheets. You’ll find foam flakes in the attic dust, and the ducts start sweating in summer. Removal here is painstaking because we work around duct hangers and electrical, but we’ve done it hundreds of times without damaging the ductwork underneath.
• Moisture-trapped Sealection in bathroom ceiling bays. In older Burbank homes without bath fans vented to the exterior, open-cell Demilec foam absorbs shower moisture and holds it against the framing. We’ve found blackened roof sheathing and soft rafter ends in homes across Magnolia Park and the Chandler Bikeway corridor. The fix requires removing the wet foam, treating the framing, correcting the ventilation, and replacing with closed-cell that won’t wick moisture.
• Vermiculite or old batt insulation sitting under newer Demilec foam. This is less a Demilec failure and more a Burbank reality: many pre-1970 homes near downtown had vermiculite or rock wool in the attic, and a previous owner sprayed foam over it rather than removing it first. If that vermiculite contains asbestos (common for Zonolite-era material), the foam can’t stay. We handle the full removal protocol, including testing and licensed abatement coordination, then install fresh Demilec or a comparable foam once the space is clean.

Our Demilec Insulation Removal & Replacement Process

Every Demilec job in Burbank follows the same sequence, whether it’s a 200-square-foot crawl space or a full 1,800-square-foot attic:

1. 1
   On-site assessment. We inspect the foam’s condition, measure thickness and coverage, check for off-ratio indicators (odor, color, texture), and test for moisture where it matters. We also photograph everything so you see what we see.
2. 2
   Scope and upfront price. We give you the exact dollar figure before any work starts. No open-ended hourly billing, no “we’ll see when we get in there.” The price includes removal, bagging, disposal, and reinstallation.
3. 3
   Containment and removal. We seal off the work area with poly sheeting, run HEPA-filtered negative air where needed, and remove the Demilec foam down to the substrate using hand tools and power scrapers sized for the space. Crawl spaces get the same treatment as attics; we don’t shortchange either.
4. 4
   Substrate inspection and prep. With the foam gone, we inspect the framing, sheathing, wiring, and ductwork underneath. Any air-sealing gaps, rodent damage, or moisture issues get addressed before new insulation goes in.
5. 5
   Reinstallation. We reapply Demilec Heatlok HFO Pro or install a better-matched product depending on what the assembly needs. This is where Neil Ashford’s building-science background shows up: we size the material to the climate zone, the ventilation, and how the space actually performs, not just what was there before.
6. 6
   Cleanup and verification. We remove all containment, vacuum the surrounding area, and walk you through the finished work. Then the 90-Day Done Right Promise applies: if anything isn’t right, we come back and make it right.

What Demilec Insulation Removal & Replacement Costs in Burbank

Here’s what we quote most often for Burbank homes:

• Crawl space Demilec removal and basic replacement: $3,800 to $6,200 for 800 to 1,200 square feet
• Full attic Demilec removal and closed-cell replacement: $6,000 to $9,600 for a 1,200 to 1,800-square-foot attic
• Partial removal only (compromised sections, no full replacement): $2,200 to $4,500 depending on access and square footage
• Vermiculite testing and abatement coordination: $450 to $1,800 added when testing is positive

What moves the price: whether the space is a stand-up attic or a tight crawl, how much wiring and ductwork we have to work around, and disposal fees if the foam is moisture-laden and heavier than typical. Estimates are free, and the number we give you is the number you pay. Call (747) 837-5834 for an exact quote on your Burbank property.

Why Burbank Homeowners Call Warmline Insulation Co. for Demilec Work

We’ve been in business since 2011, and we’ve removed and replaced Demilec foam in every corner of Burbank, from the hillside homes above Kenneth Road to the flat lots near the Burbank Airport. Our technicians are background-checked and uniformed, they understand Demilec’s chemistry and failure modes specifically, and they show up ready to work. If your job also involves Reflectix radiant barrier or other insulation brands alongside the Demilec, we handle that in the same visit. Most jobs are completed in a single day or two, not stretched out across two weeks. And every job carries the 90-Day Done Right Promise in writing. If it’s not done right, we make it right. That’s not a slogan; it’s how Neil has run Warmline since the beginning. Good insulation shouldn’t be something you think about. That means it’s working.

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