Rockwool Attic Cleaning & Rodent Proofing in Mountain View: What to Know First
We provide independent Rockwool attic cleaning and rodent proofing in Mountain View, with most jobs completed in one to two days and a written price delivered before any work starts. Our crew handles Rockwool ComfortBatt, Comfortbatt R-30, and AFB evo installations found in Peninsula homes built from the mid-1990s through the 2020s. As an independent Rockwool service provider, we are not affiliated with or authorized by Rockwool - we service what we find, document what we do, and warranty our labor under our 365-Day Done Right Promise.
This page is for Mountain View homeowners who know they have Rockwool in the attic, suspect rodents have compromised it, and want to understand what remediation actually involves before calling anyone. If that’s you, call (669) 259-0406 and a live person will pick up.
How Rockwool Products Fail - and How We Fix Them
- ComfortBatt R-30 compressed by rodent tunneling in Rex Manor and Cuesta Park attics. Rockwool’s stone wool fibers resist moisture, but rodents don’t eat them - they tunnel through them, creating void channels that collapse the batt structure. We remove the compromised sections, sanitize the substrate, and reinstall to full loft with new ComfortBatt staged at proper thickness, not squashed to fit.
- Comfortbatt with degraded facings after prolonged urine saturation. The kraft or foil facing on some Comfortbatt SKUs delaminates when saturated; the stone wool itself survives, but the vapor retarder is shot. We strip facing-damaged batts, apply enzymatic decontamination to the deck, and reinstall unfaced Comfortbatt with a separate vapor-smart strategy based on what the blower-door test shows.
- AFB evo in multi-family attic assemblies - rodent entry at party-wall gaps. AFB evo’s higher density makes it less appealing for nesting, but Peninsula contractors often leave top-plate gaps open at fire separations. We seal first with fire-rated caulk and steel mesh, then replace any AFB evo that carried the contamination load.
- Rockwool batts displaced by HVAC crews or solar installers in Old Mountain View. We’ve found ComfortBatt kicked aside for duct runs or panel conduits, never reinstalled properly, creating thermal bypasses that rodents exploit. We reseat existing material where clean, replace what’s soiled, and document the air-sealing repair with before-and-after photos.
- Moisture masking - Rockwool’s water resistance hides roof leaks until framing rots. Unlike fiberglass or cellulose, Rockwool doesn’t sag or discolor dramatically when wet. Homeowners miss slow leaks; rodents don’t. We pull sections near staining, check sheathing with a moisture meter, and report what we find before closing anything up.
Our Rockwool Attic Cleaning & Rodent Proofing Process

- 1
Call and schedule. A live person answers, notes your Rockwool product line if you know it, and books a site visit. We don’t quote over the phone for attic work - the condition varies too much.
- 2
On-site inspection and written price. Wes or a lead tech enters the attic, identifies the Rockwool series, maps rodent damage and soiling, and notes air-leak paths. You get a flat written price before any work starts - Haven Standard Clause 1.
- 3
Air sealing before anything else. Seal the leaks first. The insulation has nowhere to go if the air does. We seal top plates, can lights, penetrations, and entry gaps with appropriate materials - fire-rated caulk where code demands, steel mesh for rodent exclusion.
- 4
Contaminated Rockwool removal and deck sanitization. Soiled material comes out in bagged sections. We HEPA-vacuum, apply enzymatic decontamination, and let it dry before reinstall.
- 5
Reinstall or replace with matched Rockwool or specified alternative. We source Rockwool ComfortBatt, Comfortbatt R-30, or AFB evo as specified, or discuss Reflectix or other options if the assembly calls for it. No proprietary lock-in.
- 6
Documentation and closeout. You receive a Documented Photo Record, the written scope with warranty, and on applicable jobs, blower-door context if air sealing was part of the work. The 365-Day Done Right Promise is in writing before we leave.
What Rockwool Attic Cleaning & Rodent Proofing Costs in Mountain View
Most Rockwool attic cleaning and rodent proofing jobs in Mountain View run between $2,800 and $6,500, with simpler single-zone ComfortBatt cleanouts at the lower end and full AFB evo restoration with party-wall sealing in multi-family attics at the upper. What moves the price: square footage, depth of soiling, whether framing needs repair, and how much air sealing is required before new material goes in.
| Scenario | Typical Range |
|---|---|
| Partial ComfortBatt cleanout, light soiling, reseat existing | $2,800 - $3,800 |
| Full Comfortbatt R-30 removal, deck sanitization, reinstall | $4,200 - $5,600 |
| AFB evo multi-family, party-wall sealing, full replacement | $5,500 - $6,500+ |
| Added rodent exclusion (sealing, mesh, entry points) | $800 - $1,500 additional |
We also provide a Free Second Opinion on any written estimate - bring us a competing quote and we’ll read it with you. Call (669) 259-0406 for a written price; estimates are free.
Why Mountain View Homeowners Call Topside Attic Insulation Mountain View for Rockwool Work

We’ve been in Mountain View attics since before the current building boom - Wes Okafor’s crew pulled compacted fiberglass batts in Rex Manor and replaced them with properly staged blown-in cellulose when that was what the job called for. With Rockwool, we apply the same sequencing discipline: air seal first, then insulate, then document. Our technicians are background-checked and uniformed; calls are answered by a live person 24/7. We carry Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber materials - including Reflectix when the assembly specification calls for it - so we’re not pushing one product because it’s the only one on the truck. Every job closes with a Documented Photo Record and, where applicable, before-and-after blower-door numbers that show the actual performance change.
FAQs
Rockwool’s product warranty covers manufacturing defects, not field modifications or remediation work. As an independent service provider, our 365-Day Done Right Promise covers our labor and installation; we do not extend or alter Rockwool’s original product warranty. If you have a claim in progress, tell us before we start.
We stock ComfortBatt and Comfortbatt R-30 for standard Peninsula jobs; AFB evo and specialty SKUs typically arrive within two business days from regional distribution. We don’t demo until material is on-site - your attic doesn’t sit exposed.
Light surface soiling on intact ComfortBatt can sometimes be HEPA-cleaned and reinstalled, saving 30-40% over full replacement. Heavy urine saturation, grease staining, or compressed tunneling means removal - the stone wool survives, but the assembly doesn’t perform. We tell you which category you’re in during the inspection, before you commit.
We typically schedule Rockwool attic inspections within 48 hours in Mountain View, with remediation starting within a week of written approval. Emergency situations - active rodent entry, visible moisture damage - get priority. Call (669) 259-0406 and a live person will find the next available slot.
We service Rockwool, Reflectix, and every major insulation brand we carry. Some Mountain View homes have hybrid assemblies - Rockwool batts at the roofline with Reflectix radiant barrier below - and we’re equipped to handle both without calling in a second contractor.
Written by Wes Okafor, Owner & Lead Insulation Technician, Topside Attic Insulation Mountain View at Topside Attic Insulation Mountain View, serving Mountain View and nearby areas.