Johns Manville Attic Cleaning & Rodent Proofing in West Hollywood: What to Know First
Johns Manville attic cleaning and rodent proofing in West Hollywood typically runs $1,200 to $4,800 depending on attic size, contamination level, and whether ductwork or insulation needs replacement. Most jobs are completed in one to two days, and we handle everything from sanitizing to sealing entry points. If you’ve got rodents in a Johns Manville-insulated attic, the insulation usually has to come out, not just get spot-cleaned.
This page is for West Hollywood homeowners who own a home with Johns Manville insulation or building products and have discovered rodents, droppings, or odors in the attic. We’re Walt’s Insulation, an independent Johns Manville service provider, and we’ve been cleaning and rodent-proofing attics across West Hollywood since 2000. You can call us at (213) 527-4062 any time, day or night, and a real person will answer.
How Johns Manville Products Fail - and How We Fix Them
- ComfortTherm batts with wrapped facing trap rodent urine. The poly-encapsulated facing on Johns Manville ComfortTherm batts keeps fiberglass contained, which is great for air quality, but it also means rodent urine pools on the plastic instead of soaking through. In West Hollywood attics we see this constantly: the facing holds liquid, dries into a crust, and the smell lingers long after the rodents are gone. The fix is full removal of contaminated batts, not surface treatment.
- Attic Protector blown-in fiberglass hides burrows and tunnels. Rodents love burrowing through Johns Manville Attic Protector loose-fill because it’s light and easy to tunnel through. By the time a West Hollywood homeowner notices droppings or hears scratching, there’s usually an entire network of runways hidden under the surface. We remove all contaminated loose-fill, sanitize the deck, and install fresh insulation only after exclusion is complete.
- JM Kraft-faced batts delaminate when wet, creating nesting material. When roof leaks or condensation hit Johns Manville kraft-faced batts, the paper facing separates from the fiberglass and becomes prime nesting material for roof rats. We see this a lot in older West Hollywood buildings near Santa Monica Boulevard where roofs have been patched over the years instead of properly replaced. The fix involves removing delaminated batts and addressing the moisture source before anything goes back in.
- Vapor barriers over JM insulation create condensation pockets that attract rodents. Some West Hollywood homes have poly sheeting installed over Johns Manville insulation by previous contractors. When that barrier traps moisture against the insulation, it creates warm, humid pockets rodents seek out for nesting. We identify these problem areas by inspecting the attic deck during crawl-throughs and remove or properly vent the affected sections.
- Johns Manville duct wrap gets chewed through at joints and seams. JM’s foil-faced duct wrap is attractive to rodents because the foil and fiberglass make excellent nesting material. We frequently find chewed-through duct wrap at elbows and connection points in West Hollywood attics. Once rodents get into the duct cavity, they travel through the system. Our repair includes rewrapping the damaged sections, sealing joints with mastic, and rodent-proofing the duct runs with exclusion materials.
Our Johns Manville Attic Cleaning & Rodent Proofing Process
- 1
Attic inspection and contamination assessment. We crawl every inch of the attic, photograph what we find, and give you an honest read on whether insulation can be spot-cleaned or needs full removal. No vague reports, just straight answers.
- 2
Seal every entry point first. Rodent proofing starts with exclusion. We seal gaps around vents, pipe penetrations, electrical drops, and roofline gaps. If we clean the attic but don’t close the door, the rodents come right back.
- 3
Full removal of contaminated Johns Manville insulation. Using commercial HEPA-filtered vacuums, we remove soiled batts and blown-in fiberglass down to the deck. We bag everything on site and haul it away.
- 4
Sanitizing and decontamination. We apply an enzyme-based sanitizer to neutralize urine, feces, and odor at the source. This step is what actually kills the smell, not just masks it.
- 5
Replacement insulation as needed. We install new Johns Manville, Owens Corning, or Rockwool insulation to bring your attic back to proper R-value for West Hollywood’s climate, and we don’t cut corners on depth or coverage.
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Final inspection and the Done Right Promise. We walk the attic with you or show photos of the completed work. Every job is covered by our lifetime workmanship guarantee. If it’s not done right, we make it right.
What Johns Manville Attic Cleaning & Rodent Proofing Costs in West Hollywood
- Full attic cleanout with sanitizing (no new insulation): $1,200 to $2,800 for a typical West Hollywood attic between 800 and 1,500 square feet.
- Cleanout plus new blown-in insulation: $2,500 to $5,500 depending on R-value target and attic accessibility.
- Rodent exclusion and sealing only: $600 to $1,800 depending on how many entry points need work and roof configuration.
- Duct wrap repair after rodent damage: $400 to $1,200 for typical damage at joints and seams.
What moves the price is attic size, how long the rodents have been active, whether the roof sheathing needs treatment, and whether you’re replacing insulation with fiberglass or upgrading to a different material. We give upfront pricing before any work starts, and if you have a written estimate from another contractor, we’ll give you a free second opinion. Call (213) 527-4062 for an exact quote. We don’t charge a trip fee in our service county.
Why West Hollywood Homeowners Call Walt’s Insulation for Johns Manville Work
We’ve been doing this work since 2000, and we’ve spent plenty of time in West Hollywood attics where the insulation was, to put it charitably, an afterthought. Rodent problems in older buildings near the Santa Monica Boulevard corridor are common, and they don’t fix themselves. We’re locally owned and owner-operated with a published address and license number, not a franchise or a call center. The person answering the phone at 2 a.m. is part of our team, not an answering service.
Our technicians are background-checked and uniformed, so you know exactly who’s walking through your door. We work with Johns Manville products as an independent service provider, and we also service Reflectix and other major brands including Owens Corning, Rockwool, Knauf, and CertainTeed. Every job carries the Done Right Promise. We do the job right the first time because coming back to fix it isn’t good for either of us.
FAQs
No. Cleaning and rodent-proofing your attic does not void Johns Manville’s product warranty, but replacing damaged sections with non-JM products may affect coverage on those specific areas. We always document what we remove and why, and we can match replacement insulation to the original JM product line when that’s the best option for your home. Call (213) 527-4062 and we’ll explain exactly how warranty applies to your situation.
Most full attic cleanouts in West Hollywood are done in one day, with a second day reserved for sanitizing, sealing, and insulation replacement if needed. We answer the phone live 24/7, so if you need someone out the same day, call (213) 527-4062 and we’ll tell you honestly when we can get there.
It’s almost always cheaper to clean and sanitize first, then replace only what’s actually damaged. In West Hollywood, full cleanout with sanitizing runs $1,200 to $2,800, while blind replacement without cleaning just buries the smell and the problem comes back. We’ll give you an honest assessment of what needs to go.
Yes, and this is more common in West Hollywood than you’d think. Rodents often die inside insulation or ductwork, and the smell comes from decomposition you can’t see without removing the material. We trace the odor source during inspection and remove it at the root. Call (213) 527-4062 for an assessment.
Our rodent exclusion work is done thoroughly and sealed to last, and every job is backed by the Done Right Promise. That said, no one can guarantee rats won’t chew a new hole next year. What we guarantee is the workmanship: if our sealing fails, we’ll come back and make it right at no charge.
Contact Walt’s Insulation for Johns Manville Attic Cleaning & Rodent Proofing in West Hollywood
If you’ve got rodents in your attic or suspect your Johns Manville insulation is contaminated, don’t wait. The longer it sits, the worse it gets. Call (213) 527-4062 for a free estimate. A real person answers 24/7. No voicemail, no call center, no runaround. You’ll get straight answers, upfront pricing, and a job done right by people who live and work right here in West Hollywood. There’s $40 off any repair over $200, and seniors and veterans always save 10%. Call now.
Written by Walt Brenner, Owner, Walt’s Insulation at Walt’s Insulation, serving West Hollywood and nearby areas.