Demilec Attic Cleaning & Rodent Proofing Nationwide

Demilec Attic Cleaning & Rodent Proofing in Converse: What to Know First

We provide independent Demilec attic cleaning and rodent proofing in Converse, typically completing most jobs same-day or next-day with a written price before any work starts. As an independent Demilec service provider, we’re not affiliated with or authorized by Demilec, which means we source parts based on what actually fixes your attic, not what a factory program dictates. Most Demilec attic cleanouts in Converse run between $1,800 and $3,400 depending on contamination level and whether rodent exclusion is needed. Call (830) 420-0953 for a free estimate with a written scope.

Call (830) 420-0953

This page is for Converse homeowners who found Demilec insulation, spray foam, or air-barrier products in their attic and need cleaning, decontamination, or rodent proofing that won’t void what warranty remains. If your attic has Demilec Heatlok HFO Pro, Demilec Sealection 500, or an older Demilec 500 open-cell application, the cleanup approach differs from standard fiberglass or cellulose jobs. We’ve worked on dozens of these systems in Converse, including homes near Foster Road and the older ranch builds around Judson Road where roof rats and Demilec foam have been in contact for years.

How Demilec Products Fail - and How We Fix Them

• Heatlok HFO Pro - rodent tunneling through cured foam. The semi-rigid closed-cell structure of Heatlok HFO Pro, Demilec’s high-performance spray foam, doesn’t compress like fiberglass, so rats can’t nest inside it easily. But they’ll tunnel along the foam-to-deck interface, creating voids that show up as cold spots on infrared. We remove contaminated sections, treat the substrate with an enzyme cleaner rated for polyurethane residue, then reinstall with matching density foam or transition to a rigid board where the homeowner prefers.
• Sealection 500 - open-cell water retention after roof leaks. Sealection 500, Demilec’s open-cell spray foam, is vapor-permeable by design, which means it holds water like a sponge when a Converse hail storm breaches the shingles. Saturated open-cell foam doesn’t dry from the inside; it molds. We cut out the wet foam back to dry substrate, which often means removing 18 to 24 inches beyond the visible stain, then HEPA-vacuum the cavity before any replacement.
• Older Demilec 500 formulations - UV degradation at gable vents. Pre-2018 Demilec 500 exposed to attic ventilation near gable ends can chalk and crumble when UV hits it through unscreened vents. The foam turns from cream-colored to orange-brown and loses its air-sealing value. We scrape the degraded material, prime the substrate, and reapply with current-formulation Demilec or transition to another brand if the homeowner requests - we also install 1/4-inch hardware cloth over vents as part of rodent exclusion.
• Demilec air-barrier assemblies - compromised at top-plate gaps by rodent grease. Demilec’s fluid-applied air barriers, sometimes used in conditioned attic designs, rely on adhesion to the top plate - the horizontal framing member where walls meet the attic floor. Rodent grease trails break that bond, creating bypass paths for conditioned air. We clean the substrate with denatured alcohol, re-establish the air seal with compatible sealant, and document the repair with photos for the homeowner’s record.
• Demilec foam in unvented attics - odor retention from rodent urine. When Demilec foam is used in an unvented attic assembly, the lack of air exchange means rodent urine soaks into dust on the foam surface and stays there. Standard attic sanitizing misses it because the odor is in the boundary layer, not the foam itself. We use a hydrogen-peroxide-based cleaner at low pressure so we don’t drive moisture into the foam, then verify with a moisture meter before we close up.

Our Demilec Attic Cleaning & Rodent Proofing Process

1. 1
   Inspection with photo documentation. We enter the attic, identify the Demilec product line by visual and density test, photograph all contamination, and note any warranty documentation the homeowner has. You get these photos before we quote.
2. 2
   Blower-door test if air sealing is involved. For jobs where the Demilec assembly includes an air-barrier function, we run a blower-door test - pressurizing the house to measure leakage in CFM50 - so we have a baseline if we’re resealing after rodent damage.
3. 3
   Written price with scope. We deliver a flat price, written scope, and written warranty before anyone lifts a tool. Haven Standard Clause 1: no work starts without it.
4. 4
   Contamination removal and substrate treatment. HEPA vacuuming, enzyme or peroxide cleaning depending on Demilec foam type, and disposal per Texas environmental guidelines. We don’t encapsulate over active contamination.
5. 5
   Rodent exclusion with hardware cloth and sealant. 1/4-inch galvanized hardware cloth at vents, foam-compatible sealant at penetrations, and inspection of soffit and fascia gaps. We seal the leaks first. Then insulate. The numbers will tell you if it worked.
6. 6
   Replacement, retest, and documented record. Reinstall Demilec or transition material as scoped, rerun blower-door if applicable, and deliver before-and-after readings plus photo record. The 365-Day Done Right Promise applies.

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What Demilec Attic Cleaning & Rodent Proofing Costs in Converse

What moves the price: how much Demilec foam must come out, whether the substrate is plywood or OSB (OSB holds odor worse), accessibility of the attic, and whether we’re matching existing Demilec product or transitioning to another brand like Reflectix or a conventional system. We also service Reflectix radiant barriers when they’re part of the same attic assembly.

Every estimate is free, written, and delivered before work starts. Call (830) 420-0953 to schedule.

Why Converse Homeowners Call Topside Attic Insulation Converse for Demilec Work

Wes Okafor and his crew have handled Demilec products in Converse attics since the brand first gained traction in Texas new construction around 2012. We know the difference between Heatlok and Sealection by sight and density, and we know which Converse building codes from that era allowed foam directly on roof decking without ignition barriers - a detail that affects how we approach cleaning and replacement.

Our 365-Day Done Right Promise covers all completed work. Calls are answered by a live person 24/7, not a voicemail loop. Technicians are background-checked and uniformed, and you get a text when yours is on the way. We publish before-and-after blower-door numbers on every applicable job because a homeowner researching contractors thoroughly deserves evidence, not a feeling.

We’ve also worked on Reflectix assemblies when Converse homeowners have hybrid systems. No proprietary lock-in means we recommend what fixes your attic, not what moves a particular product line.

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