Johns Manville Insulation Removal in Houston: What to Know First
Johns Manville insulation removal in Houston typically takes one to two days for a standard attic, and most jobs run $1,800 to $4,200 depending on square footage, insulation type, and what we find once we’re up there. Alden Insulation Houston removes Johns Manville fiberglass batts, blown-in fiberglass, and spray foam, then prepares the attic for fresh insulation installed to the R-value your home actually needs. We’re an independent Johns Manville service provider, not a manufacturer affiliate, so our pricing reflects the job itself, not a brand markup.
This page is for Houston homeowners who have Johns Manville insulation that’s wet, moldy, pest-damaged, or simply underperforming, and who want a straight answer about removal before committing to anything. Call (806) 581-1010 and you’ll get a live person, not a voicemail.
Key Takeaways
- Johns Manville removal in Houston runs $1,800 to $4,200 for most attics, with the written price in your hand before work starts.
- Wet or compressed Johns Manville fiberglass loses R-value fast; Houston humidity accelerates the damage.
- Our crew removes, bags, and disposes of the old material, then air-seals and prepares the attic for replacement insulation.
- Every job carries the 365-Day Done Right Promise in writing.
- We also service Reflectix radiant barrier installations, so you can handle both projects in one visit.
How Johns Manville Products Fail – and How We Fix Them
Johns Manville makes solid insulation, but no product survives forever in a Houston attic. Here’s what we see most often and how we handle each situation.
- Moisture-soaked blown-in fiberglass (Climate Pro and Attic Protector lines). Houston’s humidity doesn’t stay outside. When soffit vents are blocked or bathroom fans vent into the attic, blown-in Johns Manville fiberglass absorbs moisture and mats down. Wet fiberglass loses its loft, which means it loses R-value, and it becomes a breeding ground for mold. We vacuum out the affected material, identify the moisture source, and fix the venting before any new insulation goes in. Removing the wet stuff isn’t optional; covering it over just traps the problem.
- Compressed fiberglass batts (R-30 ComfortTherm). Batts are only as good as their installation. In older Houston homes, we routinely find Johns Manville ComfortTherm batts that were compressed around plumbing stacks, recessed lights, and attic access doors. Compressed fiberglass doesn’t insulate; it just fills space. Our removal process clears the old batts so we can air-seal those gaps properly and install new material at the correct depth.
- Rodent and pest contamination. Rats, squirrels, and raccoons love a warm attic, and their droppings and urine make insulation unsalvageable. We’ve removed Johns Manville insulation from attics in Meyerland and Garden Oaks where rodent activity had turned the material into a health concern. The removal includes full bagging and disposal, followed by sanitizing the decking before new insulation goes down.
- Old JM spray foam that’s failing or flaking (Corbond and JM Spray Foam lines). Spray foam can separate from roof decking over time, especially in Houston’s heat-and-humidity cycling. When open-cell JM foam starts to pull away or degrade, it does almost nothing thermally. Removing spray foam is labor-intensive work that requires scraping and sometimes grinding equipment. Our crew has done enough of these jobs to quote them accurately up front, not halfway through the project.
- Undersized R-value from original construction. Plenty of Houston homes built before 2010 have Johns Manville insulation that met code at the time but falls well short of what a Houston attic needs today. If you’re sitting on R-19 in an attic that should carry R-38 or R-49, we remove the old material, seal the attic floor, and blow in new insulation to the right depth. The removal step matters because old insulation leaves gaps and thermal bridges that undercut whatever you put on top.
One thing worth saying plainly: you can’t diagnose these problems from the attic hatch. That’s why we go up, take measurements, and show you photos. You should never pay to remove insulation based on a guess.
Our Johns Manville Insulation Removal Process
Every Johns Manville removal job follows the same sequence, and you’ll know the price before we touch anything.
- 1
Call and schedule. You call (806) 581-1010, a live person answers, and we set a window. Our techs arrive inside that window, in uniform, with a background check already on file.
- 2
Attic inspection and measurements. We measure square footage, check the current insulation depth, look for moisture, and identify the Johns Manville product in place. You get photos of what we find.
- 3
Written quote. Before any tool comes off the truck, you have a written price covering removal, disposal, air sealing, and any venting corrections. That number doesn’t change at invoice time.
- 4
Removal and disposal. We use commercial vacuum equipment for blown-in material and manual removal for batts and foam. Everything is bagged, removed, and disposed of properly. No piles in your yard at the end of the day.
- 5
Air sealing and prep. We seal top plates, wire penetrations, plumbing stacks, and the attic access. This step is the difference between insulation that performs and insulation that just sits there.
- 6
Verification and guarantee. We show you the finished attic, confirm the R-value depth, and hand you the written 365-Day Done Right Promise. If anything fails within a year, we come back at no charge.
What Johns Manville Insulation Removal Costs in Houston
Removal costs depend on the material type, attic accessibility, and how much contamination we’re dealing with. Here are the ranges we quote most often in Houston.
- Blown-in fiberglass removal (1,000-1,500 sq ft attic): $1,800 to $2,800
- Batt removal with disposal (1,000-1,500 sq ft): $2,200 to $3,400
- Wet or mold-damaged material (adds sanitizing and moisture repair): $800 to $2,000 on top of base removal
- Spray foam removal (per 500 sq ft section): $2,500 to $4,500
- Full attic removal plus new blown-in insulation to R-38: $4,500 to $7,800
What moves the price is what we find up there: attic height, access, how much material we’re hauling down, and whether there’s contamination. You’ll know your number before we start, and it won’t change. Call (806) 581-1010 for a free estimate.
Why Houston Homeowners Call Alden Insulation Houston for Johns Manville Work
Alden Insulation Houston is part of the Garrison Partners family, established in 2002, and every job operates under The Garrison Standard. That means a written price before work begins, a background-checked crew in uniform, and a written guarantee that lasts a full 365 days. If the work fails inside that window, we return and make it right at no charge. No fine print, no arguing.
We remove Johns Manville products because we know how they behave in Houston’s climate, but we also install replacements from Owens Corning, Knauf, Rockwool, CertainTeed, Icynene, Demilec, GreenFiber, and Johns Manville itself. If you’re dealing with radiant barrier trouble, we service Reflectix installations too. Bryce Holloway, who runs Alden Insulation Houston, has been reading attics in this city for well over a decade. Good insulation doesn’t announce itself; you notice it on your utility bill. That’s the standard we work to.
FAQs
Most Johns Manville residential insulation warranties cover material defects, not removal or replacement labor, and they typically don’t survive a removal anyway. Defects show up within the first year, and if that’s what you’re dealing with, we’ll tell you to pursue the warranty before we remove anything. For issues like water damage, pest contamination, or compression, the warranty doesn’t apply, and removal is the only real fix. Call (806) 581-1010 and we’ll help you figure out which situation you’re in.
In many Houston attics, yes. If the material is dry, accessible, and not contaminated, our crew can often start removal the same day or within 24 hours of the inspection. Wet material, spray foam, or heavy contamination takes longer to schedule because of disposal and safety requirements. When you call, we’ll give you a realistic window, not a vague promise.
Cheaper in the short term, but if the existing material is wet, moldy, or packed down by pests, covering it doesn’t fix anything. You’ll spend money on new insulation that performs poorly from day one. Removal costs more up front, but it’s the only way to get the full R-value you’re paying for. We’ll show you what’s up there and let the photos make the case.
We do. Once the old material is out and the attic floor is air-sealed, we can blow in fiberglass or install batts to whatever R-value suits your home and budget. We carry products from eight manufacturers, so you can research your options before we install anything. The written quote covers both removal and replacement, so there are no surprises between phases.
If you have active water intrusion, we treat it as an emergency and can usually inspect within 24 to 48 hours depending on scheduling. Wet insulation gets worse by the day in Houston’s humidity, so call (806) 581-1010 as soon as you see staining on the ceiling or smell mildew near the attic access.
Get a Free Estimate for Johns Manville Insulation Removal in Houston
If you’re ready to deal with failing Johns Manville insulation, call Alden Insulation Houston at (806) 581-1010. We’ll schedule an inspection, give you a written price, and handle the removal from first cut to final cleanup. No voicemail tag, no revised numbers at the door. Just a clear plan and a guaranteed job.
Written by Bryce Holloway, Owner, Alden Insulation Houston at Alden Insulation Houston, serving Houston and nearby areas.