CertainTeed Attic Cleaning & Rodent Proofing in West Hollywood: What to Know First
We provide independent CertainTeed attic cleaning and rodent proofing in West Hollywood, with most jobs completed in one to two days and a written price delivered before any work starts. Most attic cleaning and rodent proofing jobs in West Hollywood run between $1,800 and $4,200 depending on contamination level, accessibility, and whether insulation removal is required. This page is for homeowners who have CertainTeed insulation products in their attic and need cleaning, sanitizing, or rodent exclusion that won’t void their material warranty. Call (213) 306-2607 for a free estimate with a written scope.
How CertainTeed Products Fail - and How We Fix Them
- InsulSafe SP fiberglass blowing wool compacts unevenly when rodents tunnel through it, creating bare spots where the R-value drops to near zero. We see this in the flat-roofed condos north of Melrose, where roof rats move through attics seasonally. Our fix: remove the contaminated InsulSafe, seal all penetration points with galvanized steel mesh, then reinstall to the original thickness spec.
- TrueComfort batt insulation absorbs rodent urine and holds it against drywall ceilings, which is why the smell returns after surface cleaning. The kraft paper facing delaminates when saturated, and standard enzyme sprays won’t reach the fiberglass core. We remove the affected batts, HEPA-vacuum the cavity, apply a commercial-grade sanitizer, and replace with fresh material.
- CertainTeed membrane vapor barriers in crawl spaces and attic floors tear where rodents gnaw at seams and staple lines. Once compromised, they trap moisture against subflooring instead of blocking it. We install 10-mil cross-laminated polyethylene with buried seams, not stapled edges, and seal the perimeter with acoustic sealant.
- SoftTouch duct wrap wrapped on flex duct in older West Hollywood HVAC retrofits shreds when rats use it for nesting material. The fiberglass underneath becomes airborne when the system cycles. We strip the damaged wrap, sanitize the duct, and reinstall with proper mechanical fastening plus rodent exclusion at all chase openings.
- ClimateFlex blown-in cellulose treated with borates for fire resistance loses that treatment when saturated with rodent waste, and the borate dust becomes an irritant during disturbance. We use negative-air containment during removal, dispose of it as biohazard per LA County requirements, and reinstall fresh ClimateFlex only after sealing all entry points.
Our CertainTeed Attic Cleaning & Rodent Proofing Process

- 1
Inspection and documentation. We photograph the full attic condition, identify the CertainTeed product line and installation date if visible, and note all rodent entry points, contamination zones, and compromised vapor barriers.
- 2
Blower-door test (when applicable). If the attic connects to conditioned space through bypasses, we pressurize the house to 50 pascals to locate infiltration paths that rodents also use. Seal the leaks first. Then insulate. The R-value on the bag assumes you did it in that order.
- 3
Written scope and price. We deliver a flat price with line items for removal, sanitation, rodent proofing, material replacement, and disposal. No work starts without your written approval.
- 4
Containment and removal. Negative-air HEPA containment goes up before we disturb anything. We remove contaminated CertainTeed materials, bag them for biohazard disposal, and HEPA-vacuum all surfaces.
- 5
Sanitization and rodent exclusion. Commercial sanitizer applied to all structural surfaces. Entry points sealed with 1/4-inch galvanized steel mesh, copper wool, or concrete depending on substrate. We warranty the exclusion work for one year.
- 6
Replacement and final documentation. New CertainTeed or compatible material installed to spec. We deliver a Documented Photo Record of the completed work, plus before-and-after blower-door numbers if air sealing was performed.
Before
AfterWhat CertainTeed Attic Cleaning & Rodent Proofing Costs in West Hollywood
Most attic cleaning and rodent proofing jobs in West Hollywood run between $1,800 and $4,200. Light contamination in a 1,000-square-foot attic with minimal insulation removal typically falls at the lower end. Heavy rodent activity requiring full insulation removal, deck replacement, and extensive exclusion work pushes toward the upper range or beyond.
What moves the price: square footage, contamination depth, whether the CertainTeed product is blown-in (harder to remove) or batt (faster), accessibility constraints in tight West Hollywood attics, and whether HVAC ducts need sanitizing. We also service Reflectix radiant barrier systems when those are present and damaged.
Every estimate is free, written, and delivered before any work starts. Bring us a competing written quote and we’ll provide a free second opinion, line by line.
Why West Hollywood Homeowners Call Topside Attic Insulation West Hollywood for CertainTeed Work

We’ve been inside attics across the LA basin for the better part of two decades, including plenty of bungalows off Santa Monica Boulevard where the CertainTeed product was installed in the 2000s and the rodent problem started last year. Wes Okafor built this company on blower-door testing and written documentation, not on telling customers to trust the process.
Our 365-Day Done Right Promise applies to every job. If the rodents return through our exclusion work, we return and fix it at no charge. Calls are answered by a live person 24/7, and our technicians are background-checked and uniformed. We source materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, and others, so we’re never locked into a single product line that doesn’t fit your situation.
FAQs
No, provided the work is done by qualified professionals using compatible materials and proper installation methods. CertainTeed’s limited warranty covers manufacturing defects, not installation or damage from external causes like rodents. As an independent CertainTeed service provider, we document our work to support any future warranty claim you might need to file with the manufacturer. Call (213) 306-2607 if you want us to review your warranty documents during the estimate.
Most jobs finish in one to two days. A straightforward 1,200-square-foot attic with light contamination and accessible entry points often completes in a single day. Heavy contamination, full insulation removal, or multiple rodent entry points requiring structural repair extends to two days. We give you a specific day count in the written scope before starting.
Replace it if the contamination has penetrated the insulation body or if the material has been compressed below its labeled thickness. Surface-cleaning fiberglass or cellulose that rodents have nested in rarely removes all biohazard, and compressed insulation doesn’t recover its R-value. We assess this during inspection and show you the contamination depth in photos so you can decide with actual information.
We can match the product type and R-value exactly, though manufacturing dye lots vary slightly in appearance. For InsulSafe SP and ClimateFlex, we stock the standard density and weight specs. If your original CertainTeed line has been discontinued, we specify the closest current equivalent with equal or better thermal performance and explain the difference in writing.
We typically schedule inspections within 24 to 48 hours for active rodent issues. Same-day availability happens when our West Hollywood route has a opening, which we can tell you when you call. Emergency containment for severe contamination or exposed electrical hazards gets priority scheduling. Call (213) 306-2607 and a live person will give you the next available slot.
Written by Wes Okafor, Owner, Topside Attic Insulation West Hollywood at Topside Attic Insulation West Hollywood, serving West Hollywood and nearby areas.