Johns Manville Attic Cleaning & Rodent Proofing in Santa Monica: What to Know First
Johns Manville attic cleaning and rodent proofing in Santa Monica typically runs $1,200 to $4,800 depending on attic size, contamination level, and how much exclusion work is needed. Most jobs are completed in one to two days, and we’re an independent Johns Manville service provider, not a manufacturer affiliate. That matters because we work for you, not a warranty department.
If you own a Santa Monica home with Johns Manville insulation, this page explains how rodent damage and accumulated filth affect those specific products, what we do about it, and what it costs. Call (424) 396-5828 and a real person picks up, day or night.
How Johns Manville Products Fail - and How We Fix Them
- ComfortTherm batts with poly-wrapped facing hold rodent pheromones. Rodents nest inside the plastic wrap because it’s warm and dry near the Santa Monica marine layer. The facing traps urine and feces against the fiberglass. We bag and remove every contaminated batt, then sanitize the framing before new material goes in. Spot cleaning doesn’t cut it here.
- Attic Protector blown-in fiberglass compacts under traffic and rodent tunnels. JM’s loose-fill loses R-value fast once rats or mice burrow through it. Refluffing doesn’t fix it because the fibers have been matted and soiled. We remove it completely, air-seal the attic floor, and install fresh material at the correct depth for Santa Monica’s coastal climate zone.
- JM kraft-faced batts delaminate in marine air. The kraft paper facing on older Johns Manville batts absorbs moisture from the Pacific air and peels away over time, exposing fiberglass and creating inviting nesting pockets. We see this constantly in older bungalows north of Wilshire. The fix is full removal and replacement with properly vented baffles.
- Rodents chew JM’s Formaldehyde-free fiberglass down to bare material. We’ve pulled back insulation in Sunset Park homes to find tunnels the size of a fist running straight through Johns Manville loose-fill. The material doesn’t repel rodents and it doesn’t slow them down. Exclusion is the only real fix, and that means sealing every entry point before new insulation goes in.
- JM ComfortTherm installed without rodent exclusion just becomes a fresh nest. We get calls from homeowners who paid for new insulation a year ago and still hear scratching. The installer never sealed the attic. We fix that with steel mesh, foam, and flashing at every gap, then the insulation actually stays clean.
Our Johns Manville Attic Cleaning & Rodent Proofing Process
Every Johns Manville attic job follows the same sequence. No shortcuts, no surprises.
- 1
Call and walkthrough. We answer live, ask about square footage, attic access, and what you’ve been hearing. Then we schedule a free attic inspection at your Santa Monica home.
- 2
We get in the attic and look. Walt Brenner or a senior tech documents the Johns Manville product type, contamination level, rodent entry points, and any moisture issues from the marine air. We send you photos on the spot.
- 3
You get a line-item quote. Cleanout, sanitizing, exclusion, air sealing, and new insulation priced separately. No vague lump sum. You decide what gets done.
- 4
Removal and decontamination. We vacuum out contaminated Johns Manville material, sanitize framing and sheathing, and fog the space to neutralize odors. Then we seal every entry point we found, plus any new ones.
- 5
Fresh insulation and final check. New material installed to spec. We walk the attic with you or show you photos. The Done Right Promise applies, and it’s for life.
What Johns Manville Attic Cleaning & Rodent Proofing Costs in Santa Monica
Here are honest ranges based on what we’ve done in Santa Monica over the last 20-plus years:
- Attic cleanout only (no exclusion, no new insulation): $900 to $1,800
- Full cleanout with sanitizing and decontamination: $1,400 to $2,600
- Rodent exclusion and proofing (all entry points sealed): $700 to $1,500 depending on roofline complexity and access
- Complete package: cleanout, exclusion, air sealing, new insulation: $2,800 to $4,800 for a typical Santa Monica attic
Price moves on attic size, how much material comes out, whether we need respirators and full containment, and how many entry points the rodents found. Steep rooflines and tight access in older homes near Montana Avenue add labor time. Call (424) 396-5828 for an exact quote and we’ll beat any written estimate, or give you a free second opinion if you already have one.
Why Santa Monica Homeowners Call Walt’s Insulation for Johns Manville Work
We’ve been doing this since 2000 as a locally owned, owner-operated shop. Walt Brenner grew up in San Antonio and learned the trade at St. Philip’s College before heading west, and he’s been working Santa Monica attics long enough to know how the Pacific air saturates exposed Johns Manville fiberglass in ways you won’t read about on a spec sheet.
Our techs are background-checked and uniformed. Every call is answered by a live person, 24/7, no voicemail. We install Owens Corning, Rockwool, Icynene, CertainTeed, Knauf, GreenFiber, and yes, Reflectix when radiant barrier makes sense in a coastal attic. The Done Right Promise means if it’s not done right, we make it right. You’re not calling a franchise. You’re calling the one down the road.
FAQs
No. Johns Manville warranties cover manufacturing defects in the insulation product itself, not installation conditions or contamination. Removing rodent-soiled material does not void anything. That said, if your insulation is still under warranty and has failed as a product, we’ll tell you how to file a claim. We don’t handle manufacturer warranty paperwork as part of a standard cleanout.
We can match the product type and R-value. If you have Attic Protector blown-in fiberglass at R-38, we install an equivalent or better product at the same depth. We stock multiple Johns Manville-compatible loose-fill and batt products and can source JM material specifically if you want brand continuity. Call (424) 396-5828 and we’ll spec it out for your attic.
Cleaning without replacement is usually a false economy. Once rodents have tunneled through blown-in fiberglass or nested in ComfortTherm batts, the material has lost its loft, its R-value, and its cleanliness. Removal and replacement is the cheaper long-term fix because you’re not paying for half-measures twice. “Do it right once. Everything else is just a second invoice.”
Most attic inspections happen within 48 hours. If you hear scratching in the attic or smell urine in the walls, tell us when you call (424) 396-5828 and we’ll move you up. The full cleanout and exclusion job typically runs one to two days depending on scope.
Here’s the straight answer: no one can honestly guarantee that rodents never return to a Santa Monica attic. They’re persistent and the coastal climate gives them endless food and shelter opportunities. What we guarantee is the exclusion work itself, backed by the Done Right Promise for life. If a sealed entry point fails, we fix it. If a new hole opens up, we seal it and tell you what changed.
Get Your Johns Manville Attic Cleaned and Sealed in Santa Monica
If you’ve got Johns Manville insulation and rodent activity in your Santa Monica attic, don’t wait. The damage compounds: more droppings, more chewed wiring, more saturated insulation losing R-value by the week. Call (424) 396-5828 now for a free attic inspection and upfront pricing. We answer live, every time. No voicemail, no call center, no waiting for a text back. Just a real person in Santa Monica who knows exactly what’s in your attic and how to fix it.
Written by Walt Brenner, Owner, Walt’s Insulation at Walt’s Insulation, serving Santa Monica and nearby areas.