Owens Corning Attic Cleaning & Rodent Proofing in Palo Alto: What to Know First
We provide independent Owens Corning attic cleaning & rodent proofing in Palo Alto, typically completing most jobs in one to two days with a written price delivered before any work starts. Most attic cleaning & rodent proofing projects in Palo Alto homes run between $2,800 and $6,500 depending on contamination level, accessibility, and whether insulation replacement is needed. Call (650) 352-3577 for a free estimate with upfront pricing - no surprises, no voicemail loops.
This page is for Owens Corning owners in Palo Alto who’ve found droppings, nesting material, or compressed insulation in their attic and need a crew that understands how Owens Corning products interact with rodent damage and biohazard remediation. We’re not affiliated with Owens Corning; we work on their materials as an independent service provider with no proprietary lock-in.
How Owens Corning Products Fail - and How We Fix Them
- AttiCat PINK Blown-In Insulation compression from rodent trails. The loose-fill fiberglass in Owens Corning’s AttiCat system settles into runways where rats and mice travel repeatedly, creating thermal bypasses that show up as cold spots on infrared cameras. We remove the contaminated material, sanitize the substrate, and reinstall to the original R-value with proper depth markers - not guesswork.
- ProCat LooseFill Glass Wool contaminated with urine saturation. Owens Corning’s ProCat line holds moisture differently than cellulose; once rodent urine penetrates beyond the surface, the binder can degrade and the material becomes a bacterial reservoir. We extract it with HEPA-contained vacuums, apply an enzyme-based decontamination treatment, and replace only what’s necessary - never cap over biohazard.
- FOAMULAR NGX rigid board chewed at penetrations. The extruded polystyrene in Owens Corning’s FOAMULAR NGX line is dense enough that rodents usually avoid it, but they’ll gnaw edges where it meets plumbing or electrical penetrations to gain access to wall cavities. We seal these gaps with stainless steel mesh and fire-rated caulk, then verify with a blower-door test if air sealing is in scope.
- QuietZone batts displaced by nesting activity. Owens Corning’s acoustic batts are softer and more easily shredded for nest material than standard fiberglass; we’ve found them packed into soffits and eave returns in Palo Alto’s older ranch homes near Midtown. We remove the contaminated batts, sanitize, and reinstall with proper fastening - or upgrade to a less nest-friendly material if the application allows.
- WeatherLock Flex flexible duct tape failure on vapor barriers. The adhesive on Owens Corning’s WeatherLock Flex tape degrades faster in attics with high rodent activity and the temperature swings common to Palo Alto’s microclimates, particularly near the foothills where attic temps can swing 40 degrees in a day. We strip the failed tape, clean the substrate, and reseal with appropriate materials for the actual conditions we measure on site.
Our Owens Corning Attic Cleaning & Rodent Proofing Process

- 1
Inspection with photo documentation. We photograph every Owens Corning product line present, note contamination extent, and identify entry points. You get these photos before we quote.
- 2
Written price before any work starts. Scope includes material removal volume, sanitizing treatment, rodent proofing locations, and replacement specifications. No work begins without your signed approval.
- 3
HEPA-contained removal. Contaminated Owens Corning materials are vacuumed out, not bagged by hand, to prevent airborne particle spread through your HVAC system.
- 4
Enzyme decontamination and structural repair. We treat joists and decking for biohazard, repair gnawed wiring or damaged sheathing, and install stainless steel exclusion barriers at all entry points.
- 5
Reinstallation with verification. New Owens Corning or alternative materials are installed to labeled R-value with depth markers. If air sealing is scoped, we run a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing - and publish the before-and-after CFM50 result.
- 6
Final documentation and 365-Day Done Right Promise. You receive a written report with photos, product specifications, and warranty terms. If it’s not done right, we make it right.
What Owens Corning Attic Cleaning & Rodent Proofing Costs in Palo Alto
| Scenario | Typical Range |
|---|---|
| Light contamination, no insulation replacement | $2,800 - $3,900 |
| Moderate contamination with AttiCat or ProCat removal and replacement | $4,200 - $5,800 |
| Heavy contamination with full insulation replacement, sanitizing, and rodent proofing | $5,500 - $6,500+ |
| Additional air sealing with blower-door verification | Add $800 - $1,400 |
Price moves with attic square footage, joist spacing (24-inch centers take more labor than 16-inch), and whether we find active infestations requiring pest control coordination before we seal. We also service Reflectix and other brands if your attic has mixed materials from previous work.
Call (650) 352-3577 for a free estimate - we’ll inspect, photograph, and deliver a written price you can compare. Free Second Opinion on any written estimate from another contractor.
Why Palo Alto Homeowners Call Topside Attic Insulation Palo Alto for Owens Corning Work

Wes Okafor has been doing this work for over two decades, and his crew has run jobs across the peninsula - from older ranch homes near Midtown Palo Alto where AttiCat was retrofitted in the 2000s, to tighter new builds where the blower-door number still surprises owners who assumed new construction was already tight. We keep a running list of every attic access panel we’ve had to rebuild. The list is now longer than Wes’s arm.
Every job gets a named technician, a text when they’re en route, and a Documented Photo Record you keep. Calls are answered by a live person 24/7. We’re independently owned and operated - no franchise, no manufacturer lock-in. Seal the leaks first. The insulation has nowhere to work if the air is moving around it.
FAQs
No - provided the work is performed by qualified professionals who use compatible materials and don’t alter the original installation specifications. As an independent Owens Corning service provider, we document every product line we touch and reinstall to manufacturer depth and density requirements. Call (650) 352-3577 and we’ll review your specific warranty terms during the estimate.
We source Owens Corning materials directly when the application calls for them, but we’re not locked in - we also carry Johns Manville, Knauf, Rockwool, and GreenFiber. If another brand performs better for your specific attic conditions, we’ll say so in the written scope and price both options. No proprietary product lock-in.
Partial restoration is usually cheaper when contamination is localized and the existing Owens Corning insulation is less than 10 years old. Full removal makes sense when urine saturation has reached the decking, when multiple product lines are mixed and compromised, or when the original installation was substandard. We price both approaches so you can compare.
Most Palo Alto Owens Corning attic cleaning & rodent proofing jobs are scheduled within 3-5 business days of estimate approval. Emergency situations - active infestations with HVAC contamination risk - can sometimes be addressed next-day. Call (650) 352-3577 to check current availability; a live person answers.
We coordinate with licensed pest control operators for active infestations, then perform the structural rodent proofing and insulation work ourselves. We don’t exterminate - we exclude and restore. If you already have a pest control relationship, we’re happy to work with them; if not, we can recommend Palo Alto operators we’ve partnered with on past jobs.
Written by Wes Okafor, Owner, Topside Attic Insulation Palo Alto at Topside Attic Insulation Palo Alto, serving Palo Alto and nearby areas.