Demilec Attic Cleaning & Rodent Proofing Nationwide

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

As an independent Demilec service provider in Schertz, we clean out, sanitize, and rodent-proof attics with Demilec spray foam insulation - most jobs completed in one to two days with a written price locked before any work starts. Typical attic cleaning and rodent proofing for Demilec-insulated homes in the Schertz corridor runs $1,800-$4,200 depending on contamination level, foam accessibility, and whether the existing Demilec open-cell or closed-cell product can be preserved or must be removed. Call (830) 402-5240 for a free written estimate with scope and warranty delivered before anyone lifts a tool.

Call (830) 402-5240

This page is for Schertz homeowners who found droppings, nesting material, or compressed Demilec foam in their attic and need someone who understands how Demilec’s product lines interact with rodent damage and decontamination protocols.

How Demilec Products Fail - and How We Fix Them

• Demilec Sealection 500 open-cell foam chewed for nesting material. The spongy, semi-rigid structure of Sealection 500 makes it attractive to roof rats and squirrels in Schertz’s oak-heavy neighborhoods like Sedona and The Crossvine - they shred it for bedding. We remove contaminated sections with controlled cutting, HEPA-vacuum the debris, and reinstall matching density foam only after full exclusion sealing is complete.
• Demilec Heatlok HFO High Lift closed-cell foam delaminated by rodent urine. The blowing-agent chemistry in Heatlok HFO creates a rigid, impermeable shell that traps urine against roof decking; in Schertz’s 140°F summer attics, the ammonia concentration accelerates adhesive failure at the foam-deck interface. We cut back to sound substrate, treat the deck with enzymatic cleaner, and reapply only after blower-door-verified air sealing of all entry points.
• Demilec SEALECTION Agribalance degraded by attic dust and rodent grease. The bio-based polyol content in Agribalance can absorb organic oils over time, darkening and stiffening in a way that looks like thermal degradation but is actually surface contamination. We test core density before condemning the foam; often a surface shave, HEPA cleaning, and re-spray of the top 2 inches restores performance without full removal.
• Demilec Heatlok XT compressed by technicians walking during prior service work. Closed-cell XT is dense enough to support foot traffic, but repeated compression creates permanent density pockets that read cold on thermal imaging - we see this in Schertz homes where HVAC crews serviced units after foam installation. We core out damaged sections and reapply with matching lift thickness, documenting pre- and post-repair with depth-stick photos per Haven Standard.
• Demilec foam applied over unsealed top plates, creating rodent superhighways. This is installation error, not product failure, but we document it on roughly 30% of Demilec attics we enter in Schertz - the foam bridges gaps that rodents exploit. We cut back at plate lines, seal with fire-rated caulk and metal flashing, then re-foam with proper termination details.

Our Demilec Attic Cleaning & Rodent Proofing Process

1. 1
   Inspection with thermal imaging and photo documentation. We enter the attic with a FLIR camera and document every contaminated area, foam damage pattern, and potential entry point - the homeowner receives this photo record before we quote.
2. 2
   Blower-door test to quantify envelope leakage. Even on cleaning jobs, we pressurize the house to establish baseline CFM50 - rodent entry points are often air leaks first, and the number tells us where to look.
3. 3
   Written scope and price delivered before work starts. Under Haven Standard Clause 1: flat price, written scope, written warranty - no exceptions, no “we’ll see how bad it is” pricing.
4. 4
   Controlled foam removal and HEPA decontamination. We cut damaged Demilec with hot-wire tools, bag contaminated material per Texas regulations, and run HEPA-negative air scrubbers until particulate counts drop below ambient.
5. 5
   Exclusion sealing with metal flashing and fire-rated materials. Every gap over 1/4 inch gets hard metal - rodents compress foam, gnaw wood, but cannot penetrate 26-gauge flashing properly installed.
6. 6
   Re-insulation or re-foam, final blower-door test, and documentation packet. We match existing Demilec product type where possible, deliver post-repair CFM50 comparison, thermal imaging summary, and depth-stick photo log - printed, not emailed to a spam folder.

What Demilec Attic Cleaning & Rodent Proofing Costs in Schertz

These ranges reflect Schertz labor rates and Demilec material costs as of 2024 - we also service Reflectix radiant barrier systems where those are present in the same attic. Every estimate includes the Documented Photo Record at no additional charge. Call (830) 402-5240; we’ll read your situation and deliver a written price you can compare.

Why Schertz Homeowners Call Topside Attic Insulation Schertz for Demilec Work

We’ve been working attics in Schertz long enough to know that summer heat here doesn’t just make the job miserable - it changes how foam cures, how urine degrades, and how rodents behave. Wes Okafor and our crew have handled Demilec products since the Sealection 500 reformulation years, and we carry the full Demilec technical data sheets on our tablets, not just installation guides.

The 365-Day Done Right Promise applies to every attic cleaning and rodent proofing job: if rodents re-enter through our exclusion work, we return and fix it. Calls are answered by a live person 24/7 - no voicemail loops. And because we also work with Reflectix and other brands, we’re not locked into one manufacturer’s protocol when a mixed system needs creative sequencing.

Seal the leaks first. Then insulate. The attic doesn’t care how thick the insulation is if the air is still moving through it.

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