Icynene Attic Cleaning & Rodent Proofing in West Hollywood: What to Know First
We provide independent Icynene attic cleaning and rodent proofing in West Hollywood, typically completing most jobs same-day or next-day with a written price before any work starts. Most Icynene attic cleanouts and rodent exclusion jobs in West Hollywood run between $1,800 and $4,500 depending on contamination level, foam degradation, and accessibility. As an independent Icynene service provider, we work on all Icynene open-cell and closed-cell lines installed in the LA basin since the mid-2000s, including jobs where rodents have compromised the foam envelope or where attic restoration requires partial removal and reapplication.
This page is for West Hollywood homeowners who found droppings in their Icynene-insulated attic, noticed a urine smell after a Santa Ana wind event, or were told by a pest company that the foam needs to come out before they can guarantee their work. We have cleaned and resealed Icynene attics in the bungalow courts off Santa Monica Boulevard, the hillside homes above Sunset Plaza, and the mid-century condos near Melrose. Call (213) 306-2607 for a free estimate with a written scope.
How Icynene Products Fail - and How We Fix Them
- Icynene Classic Max (open-cell) - rodent nesting and compression damage. Classic Max is a half-pound density open-cell foam that rodents can tunnel through more easily than closed-cell alternatives. In West Hollywood, we regularly find Norway rat nests burrowed into Classic Max installed between 2008 and 2015, especially in attics with unsealed eave gaps. The foam doesn’t rot, but the tunnels create uninsulated channels that bypass the R-value entirely. We remove contaminated sections, HEPA-vacuum the residue, and reinstall with sealed boundaries.
- Icynene MD-R-200 (closed-cell) - delamination from roof deck moisture. MD-R-200 is a two-pound closed-cell system that bonds directly to the roof deck in hot roof assemblies. When rodents breach the attic and introduce moisture through urine saturation, the foam can pull away from the sheathing at the interface. We see this in West Hollywood’s 1920s Spanish revivals where MD-R-200 was sprayed directly to original skip sheathing without a proper substrate. Our fix: remove the delaminated sections, treat the sheathing with an antimicrobial, and reapply with a mechanical fastening pattern that accounts for the original wood’s uneven surface.
- Icynene LD-C-50 (low-density open-cell) - dust and allergen retention. LD-C-50’s cell structure is more open than Classic Max, which means it traps rodent dander, urine crystallization, and attic dust deep in the matrix where surface cleaning cannot reach. Homeowners in West Hollywood call us after a standard attic cleaning leaves the smell behind. We use controlled depth removal to excise the contaminated layer, then seal the remaining substrate before any new material goes in.
- Icynene Water Blown (WB) formulations - hydrolysis from prolonged urine exposure. Early WB products (pre-2012) used water as a blowing agent and can undergo hydrolytic degradation when saturated with rodent urine over months or years. The foam turns crumbly and powdery, losing both structural integrity and thermal performance. In West Hollywood’s warmer attic temperatures, this accelerates. We map the degradation with moisture meters and thermal imaging, then remove to sound substrate.
- Icynene H2Foam Lite - incomplete cure from application errors, then rodent intrusion. H2Foam Lite requires precise substrate temperature and humidity at application. When installed in marginal conditions common to West Hollywood’s spring marine layer periods, the foam can retain tackiness or soft spots that attract rodents seeking nesting material. We test cure integrity with Shore hardness readings, remove non-conforming areas, and reapply under controlled conditions with documented substrate readings.
Our Icynene Attic Cleaning & Rodent Proofing Process
- 1
Inspection and documentation. We photograph every Icynene surface, note the series and approximate install date, and run a moisture meter across the full attic footprint. You get this photo record before we start.
- 2
Blower-door baseline (when accessible). If the home’s envelope allows, we run a blower-door test - pressurizing to 50 pascals - to establish the pre-work air leakage rate. This number becomes the benchmark for any air-sealing work that follows.
- 3
Contamination mapping and removal plan. We mark zones by severity: Zone 1 (surface droppings, intact foam), Zone 2 (urine saturation, partial degradation), Zone 3 (full removal required). The written scope specifies exactly which Icynene series comes out and what stays.
- 4
HEPA-contained removal and sanitization. Contaminated foam is cut and bagged under negative air pressure. Substrates receive enzyme treatment and antimicrobial where indicated. We do not spray sealers over active biological loading.
- 5
Rodent proofing and exclusion. Before any new Icynene or alternative insulation goes in, we seal all penetration points with rodent-exclusion materials: 1/4-inch hardware cloth for vents, copper mesh for gaps under 2 inches, concrete patching for foundation breaches. Seal the leaks first. Then insulate. The R-value on the bag assumes you did it in that order.
- 6
Reinstallation, testing, and final documentation. We reinstall Icynene or, if the homeowner prefers, an alternative like Reflectix or mineral wool in specific applications. A post-work blower-door test verifies the seal. You walk away with the written scope, the photo record, and the before-and-after numbers.
Before
AfterWhat Icynene Attic Cleaning & Rodent Proofing Costs in West Hollywood
| Scenario | Typical Range |
|---|---|
| Light contamination, Classic Max spot removal + cleaning | $1,800 - $2,800 |
| Moderate contamination, partial MD-R-200 removal + reapplication | $3,200 - $4,500 |
| Severe contamination, full attic strip, sanitization, rodent proofing, reinsulation | $4,800 - $7,500 |
| Rodent proofing only (no foam work, accessible attic) | $1,200 - $2,200 |
What moves the price: attic square footage, headroom accessibility (West Hollywood’s 1920s bungalows often have 4-foot clearances), whether the Icynene is bonded to original skip sheathing or modern plywood, and how far contamination has spread into HVAC platforms or light chases. We do not price by phone without photos or a site visit. Call (213) 306-2607 for a free estimate with a written scope - no work starts without it.
Why West Hollywood Homeowners Call Topside Attic Insulation West Hollywood for Icynene Work
We have cleaned and resealed Icynene in West Hollywood since 2016, and we keep seeing the same pattern: a pest company treats the rodents, declares the job done, and the homeowner is left with contaminated foam that no standard cleaning can salvage. We handle both sides - the biological remediation and the building-science repair - because partial solutions fail.
Wes Okafor and our crew are background-checked, uniformed, and trained on Icynene’s full product line plus alternatives including Reflectix for specific radiant barrier applications. Every job carries the 365-Day Done Right Promise: if it’s not done right, we make it right, backed by a written scope and warranty delivered before anyone lifts a tool. Calls are answered by a live person, 24/7.
FAQs
The original Icynene warranty covers material and application defects, not damage from rodents or subsequent modifications. As an independent Icynene service provider, we document our removal and reinstallation procedures so you have a record if any material defect claim arises later. We do not alter the foam chemistry or use incompatible solvents that could compromise remaining warranted areas. Call (213) 306-2607 if you have warranty paperwork you’d like us to review with you.
We can source current Icynene formulations including Classic Max and MD-R-200 through our supplier network. For discontinued lines like early Water Blown series, we match density and R-value with compatible alternatives and document the substitution in your written scope. We also work with Reflectix and other brands if you prefer a different approach for specific attic zones. Free estimates include all options.
Surface cleaning runs less upfront but fails when contamination has penetrated the cell structure, which is typical with open-cell products after rodent occupation exceeding a few weeks. We test penetration depth during inspection and give you both numbers: cleaning only versus removal and replacement. In West Hollywood’s climate, where attic temperatures accelerate off-gassing of trapped biological material, partial removal is often the cost-effective long-term choice. Call for a written comparison.
Most West Hollywood Icynene attic jobs are scheduled within 48 hours of estimate approval. Emergency situations - active rodent infestation with compromised attic access - can sometimes be addressed same-day. We do not start work without a written price and scope, so the timeline includes the site visit, documentation, and your review of the written estimate.
Yes. On jobs where the home envelope allows blower-door testing, we provide the pre- and post-pressurization readings in CFM50 - the number that shows, in one figure, how much conditioned air your home was losing before and after our work. Every job includes a Documented Photo Record. Under the Haven Standard, you get evidence, not assurances.
Written by Wes Okafor, Owner, Topside Attic Insulation West Hollywood at Topside Attic Insulation West Hollywood, serving West Hollywood and nearby areas.