Johns Manville Insulation Removal & Replacement Nationwide

Johns Manville Insulation Removal & Replacement in Pomona: What to Know First

We provide independent Johns Manville insulation removal and replacement in Pomona, typically completing attic jobs in one day with a written price before any work starts. Most removal and replacement projects in the Pomona Valley run between $2,800 and $6,400 depending on square footage, contamination level, and whether the existing material is vermiculite or blown fiberglass. This page is for homeowners who’ve found Johns Manville insulation in their attic - whether it’s original to a 1980s build near Ganesha Park or was installed during a prior energy upgrade - and need it removed safely and replaced with material that performs to current California Title 24 standards. Call (562) 242-7569 for a free estimate with a written scope.

Call (562) 242-7569

How Johns Manville Products Fail - and How We Fix Them

• JM Spider blown-in fiberglass - the loose-fill product with the integrated adhesive binder - compacts unevenly in Pomona attics where summer roof deck temperatures exceed 140°F. The binder off-gasses and the material settles into a dense, low-R-value mat near the eaves while leaving bare spots over the center of the house. We remove it with a high-volume insulation vacuum and replace with fresh blown-in or dense-pack cellulose, depending on the attic geometry.
• JM Climate Pro formaldehyde-free batts - common in 2005-2015 Pomona tract homes - absorb moisture when attic ventilation is marginal, which is typical in the older ranch homes near Lincoln Park with original gable vents and no ridge venting. The batts delaminate and sag off top plates, creating thermal bypasses we document with thermal imaging before removal. We pull the degraded batts, seal the bypasses with canned foam and rigid blocking, then reinstall to the correct compression fit.
• JM mineral wool (Sound & Fire) - the higher-density product used for fireblocking and sound attenuation - doesn’t degrade chemically but becomes a rodent nesting substrate in Pomona’s hillside neighborhoods where roof rat pressure is heavy, particularly north of the 10 Freeway near Phillips Ranch. We remove the contaminated mineral wool, sanitize the substrate, rodent-proof with wire mesh at all penetration points, then replace with fresh material.
• JM vermiculite attic fill - pre-1990 installations, including some found in Pomona’s historic district near downtown - requires asbestos testing before disturbance under California HSC § 25915. We collect a sample, send it to a certified lab, and if positive, coordinate with a licensed abatement contractor for removal under negative air containment. We then return to air-seal and reinsulate with modern fiberglass or cellulose.
• JM AP Foil-faced polyiso board - used for cathedral ceiling applications in Pomona’s 1970s-1980s raised ranch and split-level homes - suffers face delamination when the foil separates from the foam core, usually at fasteners or where ice damming occurred in winter. We remove the compromised boards, assess the roof deck for moisture damage, and replace with fresh polyiso or transition to spray foam depending on cavity depth and budget.

Our Johns Manville Insulation Removal & Replacement Process

1. 1
   Call and scheduling - A live person answers, or you text us back. We schedule an attic inspection, typically within 48 hours in Pomona and the surrounding Inland Empire.
2. 2
   On-site inspection and blower-door test - We run a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing - before touching anything. We photograph the existing Johns Manville product, note the series, depth, and condition, and identify all air leaks at top plates, recessed cans, and chimney chases.
3. 3
   Written price and scope - Under Haven Standard Clause 1, you get a flat price, written scope, and written warranty before anyone lifts a tool. No work starts without it.
4. 4
   Removal and air sealing - We vacuum or bag out the old Johns Manville material using HEPA-contained equipment. Then we seal every penetration with foam, caulk, or rigid blocking. Seal the leaks first. The insulation is just the last layer of the answer.
5. 5
   Replacement and verification - We install new insulation to the specified R-value - typically R-38 to R-60 for Pomona attics under current Title 24. On applicable jobs, we run a second blower-door test and publish the before-and-after numbers so you can verify the air-sealing result.
6. 6
   Documentation and closeout - You receive a Documented Photo Record of the completed work, the blower-door readings if applicable, and your written warranty under the 365-Day Done Right Promise.

Before

After

What Johns Manville Insulation Removal & Replacement Costs in Pomona

These are real Pomona-market numbers based on jobs we’ve completed in neighborhoods from Downtown Pomona to the north hillside tracts. The price moves up with attic square footage, down with clear access and straight joist runs. We also offer a Free Second Opinion on any written estimate - bring us a competing quote and we’ll read it with you. Call (562) 242-7569 for an exact quote; estimates are free.

Why Pomona Homeowners Call Topside Attic Insulation Pomona for Johns Manville Work

We’ve removed and replaced Johns Manville products in Pomona homes since 2016, and we don’t treat it as generic fiberglass. We know the Spider binder failure pattern, the Climate Pro moisture sensitivity, and the vermiculite era - and we document what we find rather than selling you on how we feel about it. Every job gets a written price first, a Documented Photo Record at closeout, and on air-sealing jobs, before-and-after blower-door numbers you can hold in your hand. Our materials come from Johns Manville, Owens Corning, Knauf, Rockwool, and others - no proprietary lock-in, so we specify what’s right for your assembly. We also service Reflectix radiant barrier products where they’re part of the existing system. Calls are answered by a live person 24/7, and our technicians are background-checked and uniformed.

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