Icynene Attic Cleaning & Rodent Proofing in Schertz: What to Know First
We provide independent Icynene attic cleaning and rodent proofing in Schertz, typically completing jobs same-day or next-day depending on contamination level and accessibility. Most Schertz homeowners with Icynene spray foam systems pay between $1,800 and $4,200 for full attic restoration including decontamination, rodent exclusion, and foam assessment. We are not affiliated with or authorized by Icynene. As an independent Icynene service provider, we work on what we find, document it with photos, and give you a written price before anyone enters your attic.
This page is for Schertz homeowners who found rodent damage, nesting material, or degraded foam in an attic with Icynene insulation, and need someone who understands how spray foam behaves differently from batt or blown-in when pests move through it. Call (830) 402-5240 for a free estimate. We answer live, 24/7.
How Icynene Products Fail - and How We Fix Them
- Icynene Classic Max (open-cell) - moisture trapping behind foam: Classic Max is hydrophilic by design, meaning it holds water rather than shedding it. In Schertz, where humidity spikes above 80% during Gulf Coast spring fronts, we’ve found saturated Classic Max panels in attics near Cibolo Creek where roof leaks went undetected. The foam doesn’t show water damage the way fiberglass does. It hides it until the OSB sheathing behind it starts to delaminate. We remove the affected foam in controlled sections, treat the substrate with an antimicrobial, and reinstall only after moisture readings drop below 16%.
- Icynene MD-R-200 (medium-density closed-cell) - rodent tunneling at perimeter edges: MD-R-200 cures to a rigid surface that rodents can’t chew through, but they exploit the gap where foam meets framing members. In the Sedona subdivision off FM 1518, we’ve tracked roof rat runs along MD-R-200 perimeter edges where the foam didn’t fully adhere to the top plate. The fix isn’t more foam. It’s mechanical exclusion - galvanized steel mesh behind the foam line, sealed with polyurethane caulk rated for foam contact, then a targeted foam patch if needed.
- Icynene LD-C-50 (low-density open-cell) - dust and allergen retention: LD-C-50’s cell structure is open enough to trap airborne particulates, including rodent dander and dried urine proteins. Standard vacuuming doesn’t extract material from the cell matrix. We use HEPA-negative air machines during removal, then apply a commercial enzymatic cleaner formulated specifically for open-cell foam, not generic attic sanitizers that leave residue.
- Icynene ProSeal Eco (closed-cell) - thermal drift in unvented attics: ProSeal Eco can develop thermal drift, a gradual R-value reduction, when the attic isn’t properly vented and the foam is subjected to sustained temperatures above 140°F. Schertz attics hit that threshold routinely in July and August. We test with an infrared camera to identify drift zones, then evaluate whether the foam can stay or needs selective removal. Often the fix is improving attic ventilation, not replacing the foam.
- Icynene H2Foam Lite - degradation from rodent urine salts: H2Foam Lite uses a water-blown chemistry that’s susceptible to alkaline degradation. Rodent urine has a pH around 8-8.5, and over time it breaks down the foam’s polymer bonds. We’ve seen this in Schertz homes where mice established latrine sites in H2Foam Lite before the homeowner knew they had a problem. The affected sections crumble under light pressure. We map the damage, remove to solid substrate, and replace with compatible material only after the exclusion work is complete.
Our Icynene Attic Cleaning & Rodent Proofing Process

- 1
Attic inspection with photo documentation. We enter with a headlamp, moisture meter, and infrared camera. Every finding is photographed and uploaded to your job file before we leave the attic. You see what we see.
- 2
Blower-door test if the attic is conditioned. For homes with Icynene in unvented attic assemblies, we run a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing. This establishes baseline performance before we disturb anything.
- 3
Contamination assessment and written scope. We classify contamination level (light, moderate, heavy) based on droppings density, urine staining, and nesting material volume. You get a written price before any work starts, with line items for removal, sanitizing, exclusion, and foam repair or replacement.
- 4
Controlled foam removal and HEPA extraction. We section out damaged Icynene with reciprocating blades set to the foam depth, not grinding tools that aerosolize particles. Debris is captured in HEPA-filtered negative air machines, not standard shop vacs.
- 5
Rodent proofing and exclusion. Every entry point larger than 1/4 inch gets steel mesh, concrete patch, or metal flashing depending on location. We focus on eave gaps, plumbing penetrations, and chimney saddles - the three most common Schertz entry routes.
- 6
Sanitizing, foam repair, and final documentation. We apply enzyme treatment, install replacement foam where needed, and deliver your Documented Photo Record with before-and-after images. On conditioned attics, we re-run the blower-door test and publish the numbers so you can verify the air-sealing result.
What Icynene Attic Cleaning & Rodent Proofing Costs in Schertz
Most Icynene attic cleaning and rodent proofing jobs in Schertz fall into these ranges:
| Scenario | Typical Range |
|---|---|
| Light cleanout + exclusion, foam intact | $1,800 - $2,600 |
| Moderate contamination + selective foam removal | $2,800 - $3,800 |
| Heavy restoration + full foam replacement | $4,000 - $6,500 |
| Conditioned attic with blower-door verification | Add $400 - $600 |
What moves the price: accessibility (scuttle vs. pull-down stairs vs. cut new access), square footage, whether the Icynene is open-cell or closed-cell, and how many linear feet of rodent exclusion are needed. We also service Reflectix systems and can compare repair paths if your attic has mixed insulation types.
Call (830) 402-5240 for a free estimate. Estimates include the attic inspection, photo documentation, and written price before any work starts.
Why Schertz Homeowners Call Topside Attic Insulation Schertz for Icynene Work

We’ve been working the Schertz corridor for several years, including jobs in the Sedona subdivision off FM 1518 where summer attic temps regularly push past 140°F before a single batt goes in. Wes Okafor built this operation on sequencing the work correctly: blower-door test first, air-sealing the top plates and penetrations second, blown-in or foam insulation third. Adding R-38 over an unsealed attic floor is money spent on the wrong problem. The same principle applies to Icynene restoration - seal the leaks first, then repair the foam. The attic doesn’t care how thick the insulation is if the air is still moving through it.
Every job carries our 365-Day Done Right Promise. If it’s not done right, we make it right. You get a written scope, written warranty, and Documented Photo Record before the crew leaves. Calls are answered by a live person, 24/7. No voicemail loops, no callback windows measured in business days.
FAQs
Icynene’s limited warranty covers original installation defects, not damage from rodents, moisture, or subsequent modifications. As an independent Icynene service provider, we document our work with photos and written scope so you have a clear record if warranty questions arise later. Our 365-Day Done Right Promise covers our labor and materials. Call (830) 402-5240 to discuss your specific installation.
We source Icynene products through standard distribution channels and use compatible closed-cell or open-cell foam from our multi-brand inventory when appropriate. Our materials come from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary lock-in. We match foam type to existing substrate and tell you exactly what we’re installing before we start.
Replace when the foam is crumbly, delaminated from the substrate, or has sustained urine salt degradation - these are structural failures that patching won’t fix. Repair when the damage is surface-level contamination or selective moisture exposure with solid substrate behind it. We make this call during inspection and show you the photos so you can see the difference. Call (830) 402-5240 for a free assessment.
We typically schedule Icynene attic inspections within 24-48 hours, and can often begin work same-day if the attic is accessible and the scope is straightforward. Active infestations get priority scheduling. Call (830) 402-5240 - we answer live.
Don’t disturb the foam yourself - compressed or crumbling open-cell can release trapped particulates. Close the attic access, avoid using the space for storage, and call us. We’ll inspect, document, and give you a written price before any work starts. Estimates are free.
Written by Wes Okafor, Owner, Topside Attic Insulation Schertz at Topside Attic Insulation Schertz, serving Schertz and nearby areas.