Demilec Attic Cleaning & Rodent Proofing in Georgetown: What to Know First
We provide independent Demilec attic cleaning and rodent proofing in Georgetown, typically completing jobs in one to two days with a written price delivered before any work starts. Most Demilec attic cleanouts and rodent exclusion jobs in Georgetown run between $1,800 and $4,200 depending on contamination level, accessibility, and whether the Demilec insulation layer can be salvaged or must be removed. Call (254) 970-2136 for a free estimate with a written scope and warranty delivered upfront.
This page is for Georgetown homeowners who have Demilec spray foam or insulation products in their attic and are dealing with rodent activity, nesting debris, or contaminated insulation that needs professional cleaning and sealing. If your attic has Demilec Heatlok HFO Pro, Demilec Sealection 500, or an older Demilec 500 series application, the cleanup approach differs from standard fiberglass or cellulose jobs. We will explain why.
How Demilec Products Fail - and How We Fix Them
- Heatlok HFO Pro - surface friability after rodent traffic. The open-cell structure of Heatlok HFO Pro can develop a crumbly surface when rodents compress and scratch across it repeatedly, creating particulate that mixes with droppings and degrades air quality. We HEPA-vacuum the degraded layer, apply an enzymatic decontamination treatment, and assess whether the foam substrate still meets its original R-value before recommending spot reapplication or full removal.
- Sealection 500 - water absorption and odor retention in Georgetown’s humid shoulder seasons. Sealection 500 is an open-cell water-blown foam that can wick moisture if the roof deck above it has been compromised by rodent entry points; in Georgetown’s spring and fall, when humidity swings between 40% and 85%, this trapped moisture breeds bacteria and holds odor. We locate the entry path, remove the saturated foam section, dry the deck with directed airflow, and reseal with closed-cell Demilec Heatlok Soya or an appropriate replacement before reinsulating.
- Older Demilec 500 series - off-gassing reactivation from urine saturation. Pre-2018 Demilec 500 formulations can re-release amine catalyst odors when saturated with rodent urine, particularly in attics that exceed 130°F in July and August. We do not mask this. We remove the affected foam, treat the substrate with an antimicrobial, and document the square footage for insurance submittal if the homeowner is filing a claim.
- Demilec spray foam around can lights and top plates - rodent highways through cutouts. Demilec is often sprayed tight to electrical penetrations and top plates, but if the original air-sealing detail missed a gap, rodents exploit these as travel corridors. We use borescope inspection to trace the path, then seal with backer rod and fire-rated caulk or closed-cell foam before reinstalling any removed Demilec layer.
- Demilec in vented attics - thermal drift from disturbed coverage. When rodents tunnel through or nest on Demilec spray foam, they compress the material and create thin spots that lose R-value. We infrared-scan the entire attic floor to map these disturbances, mark them for spot repair, and provide the homeowner with a thermal image report showing pre- and post-repair coverage.
Our Demilec Attic Cleaning & Rodent Proofing Process

- 1
Written price and scope before entry. We inspect the attic access, document the Demilec product type and condition with photos, and deliver a flat price with a written warranty. No work starts without this.
- 2
Blower-door and thermal imaging baseline. On applicable jobs, we run a blower-door test - a pressurization reading that shows, in one number, how much air the building envelope is losing - and capture infrared images of the Demilec layer to establish pre-work documentation.
- 3
HEPA-contained removal and decontamination. We set up negative air containment, remove contaminated Demilec and debris with HEPA filtration, and apply enzymatic treatment to break down organic material. All waste is bagged and removed same-day.
- 4
Rodent exclusion and penetration sealing. Every entry point is mapped, materials are selected (OEM Demilec products when available and appropriate, quality aftermarket alternatives when lead times or cost warrant it), and the envelope is sealed before any new insulation goes in. Seal the holes first. Then we talk about R-value.
- 5
Replacement, testing, and documentation. We reinstall insulation to the specified R-value, run post-work blower-door and thermal verification, and deliver a Documented Photo Record with measured results. The 365-Day Done Right Promise applies.
Before
AfterWhat Demilec Attic Cleaning & Rodent Proofing Costs in Georgetown
| Scenario | Typical Range |
|---|---|
| Light cleanout, minimal Demilec disturbance, spot rodent exclusion | $1,800 - $2,600 |
| Moderate contamination, partial Demilec removal, full exclusion | $2,600 - $3,400 |
| Heavy contamination, full Demilec removal and replacement, deck treatment | $3,400 - $4,200+ |
What moves the price: attic square footage, depth of Demilec installed, whether the product is open-cell (easier to remove) or closed-cell (denser, more labor), roof pitch and accessibility, and whether HVAC ductwork in the attic requires protective wrap during the process. Homes in Georgetown’s older neighborhoods near the Square often have tighter access hatches and steeper pitches than newer construction in Santa Rita Ranch, which affects labor hours.
Every estimate is free, written, and delivered before any work starts. Bring us a competing quote; we offer a Free Second Opinion on any written estimate.
Why Georgetown Homeowners Call Topside Attic Insulation Georgetown for Demilec Work

We have cleaned and restored Demilec attics from Sun City Georgetown to properties backing the San Gabriel River corridor, and we know the difference between Heatlok HFO Pro and Sealection 500 without reading a label twice. Our crews are background-checked and uniformed, calls are answered by a live person 24/7, and we publish before-and-after blower-door numbers on every applicable job so the homeowner sees the measured change, not a sales pitch.
We also service Reflectix and other insulation brands, so if your attic has mixed materials or a previous installer used multiple product lines, we diagnose the whole assembly rather than treating one brand in isolation. The Haven Standard applies to every job: written price, written scope, written warranty, documented record.
FAQs
Demilec’s product warranty covers manufacturing defects, not damage from rodents or improper installation, so professional cleaning by an independent service provider does not inherently void coverage. We document the pre-existing condition with photos and preserve any intact sections that meet original specifications. For warranty claims related to the foam itself, we note the install date and batch details so you have records. Call (254) 970-2136 and we will review your specific Demilec documentation during the estimate.
OEM Demilec spray foam components typically ship from distribution within 3-5 business days, but Heatlok Soya closed-cell can run 7-10 days in peak season due to isocyanate allocation. We stock quality aftermarket closed-cell and open-cell alternatives that match Demilec’s thermal performance specs and are safe to interface with existing Demilec substrates, which we often use when turnaround matters or when the original Demilec line has been discontinued.
Spot repair is cheaper when less than 30% of the Demilec layer is disturbed and the substrate is structurally sound; full removal and replacement becomes cost-effective when contamination exceeds 50% coverage or when urine saturation has reached the deck. We provide both options in writing with square-footage breakdowns so the homeowner can compare. Most Georgetown homes built between 2015 and 2020 with Demilec fall into the spot-repair category unless rodents have been active for more than one season.
We schedule inspections within 24-48 hours for active rodent situations, and emergency containment - sealing entry points to stop ongoing intrusion - can often be done same-day if the crew is in your area. Full cleanout and Demilec restoration requires equipment staging and typically starts within 2-3 business days of estimate approval. Call (254) 970-2136; a live person answers 24/7.
We partner with licensed wildlife control operators for active trapping when needed, but our scope is the attic restoration: contamination removal, Demilec repair or replacement, and permanent exclusion to prevent reentry. If rodents are still active, we coordinate timing so the trapping phase completes before our cleanout begins, avoiding recontamination. We do not perform chemical extermination ourselves.
Written by Wes Okafor, Owner, Topside Attic Insulation Georgetown at Topside Attic Insulation Georgetown, serving Georgetown and nearby areas.