Owens Corning Insulation Removal & Replacement in San Antonio: What to Know First
Owens Corning insulation removal and replacement in San Antonio typically runs $1.50 to $3.50 per square foot for full attic extraction and reinstallation, with most jobs completed in one to two days depending on attic size and access. We’re an independent Owens Corning service provider, not a factory-authorized dealer, which means we tell you the truth about whether that old pink fiberglass needs to come out or can stay put. If you own a San Antonio home with Owens Corning insulation that’s failed, settled, or been contaminated, call (866) 751-4428 and we’ll give you a straight answer plus a free estimate.
How Owens Corning Products Fail - and How We Fix Them
Owens Corning makes decent insulation, but San Antonio’s climate exposes weaknesses that cooler regions never see. Here’s what we find in attics across the city:
- Pink Fiberglas batts losing loft in older homes. The classic R-19 and R-30 pink batts installed in the 1990s and early 2000s were never designed for 140-degree attic summers. The binder breaks down, the batts slump to half their original thickness, and you’re left with R-9 doing the work of R-30. We pull the flattened material, air-seal the attic floor, and replace it with blown-in Owens Corning AttiCat or ProPink fiberglass at the correct depth for San Antonio’s climate zone.
- Vermiculite contamination in pre-1990 attics. San Antonio homes built before 1990 sometimes have vermiculite insulation that may contain asbestos, and Owens Corning sold vermiculite under its own name well into the 1980s. We never test or disturb it ourselves; we work with a licensed asbestos abatement contractor to remove it safely, then we handle the replacement with new Owens Corning blown-in insulation once the attic is cleared.
- Rodent damage turning fiberglass into nesting material. Rats and squirrels in San Antonio will shred Owens Corning batts and blown-in fiberglass into nests, and once urine and droppings saturate the material, cleaning it is a losing battle. We remove the contaminated insulation, sanitize the attic floor, rodent-proof entry points, and install fresh Owens Corning insulation only after the pests are locked out for good.
- Moisture-soaked ProPink from roof leaks. Owens Corning fiberglass loses its R-value fast once it’s wet, and in San Antonio’s storm season a small roof leak can saturate a whole section of attic insulation before you notice the ceiling stain. We trace the leak, remove the wet material, dry the area, and replace it once the roof repair is confirmed. Putting dry insulation over a wet attic floor is throwing money away, and we won’t do it.
- Settled blown-in insulation leaving bare spots. Owens Corning blown-in fiberglass settles over time, especially in attics where the original installer skimped on depth. We measure the actual R-value across the attic floor, not just in one corner, then remove and replace or top off as needed so you get the R-value you’re paying for across every square foot.
Our Owens Corning Insulation Removal & Replacement Process
We’ve done enough Owens Corning jobs in San Antonio to know that removal and replacement is rarely just “suck it out and blow in new stuff.” Here’s how a typical job runs:
- 1
You call us. A real person answers, 24/7, and schedules a time that works for you. No voicemail, no callback wait.
- 2
We inspect the attic. Our tech measures existing R-value, checks for moisture, mold, rodent activity, and air leaks, and takes photos so you can see what we see. We’re not going to recommend removal unless the insulation is actually failing.
- 3
We give you a written quote. Upfront pricing, no vague estimates. If you have another written quote, bring it in, we’ll give you a free second opinion.
- 4
Removal day. We use commercial HEPA-filtered vacuum equipment to extract the old Owens Corning insulation without dusting out your house. The area is bagged and removed, not blown into your yard.
- 5
We air-seal and prep. Before any new insulation goes in, we seal top plates, around recessed lights, and any gaps where attic air leaks into your living space. This is the step big-box installers skip, and it’s why our jobs perform better.
- 6
Fresh Owens Corning goes in, we clean up, and we stand behind it. The Done Right Promise covers our workmanship for life. If it’s not done right, we come back and make it right.
What Owens Corning Insulation Removal & Replacement Costs in San Antonio
Every attic is different, but here are honest numbers for the work we do in San Antonio:
- Full attic insulation removal: $0.75 to $1.75 per square foot depending on depth, access, and contamination level
- Replacement with Owens Corning blown-in fiberglass: $0.75 to $1.25 per square foot for R-38 to R-49, the right range for South Texas
- Combined removal and replacement: $1.50 to $3.50 per square foot, with most 1,500-square-foot attics landing between $2,200 and $5,000
- Air sealing (recommended during replacement): $400 to $900 depending on attic complexity
- Rodent proofing and sanitation add-on: $300 to $800 depending on entry points and damage
What moves the price: attic height and access, how deep the old insulation is, whether there’s pest damage or moisture, and whether you want batt or blown-in replacement. We don’t charge a trip fee if you’re in our service county, and seniors and veterans always get 10% off. Call (866) 751-4428 for a free estimate with real numbers, not ballpark guesswork.
Why San Antonio Homeowners Call Walt’s Insulation for Owens Corning Work
We’re the one down the road, not an 800 number. Walt Brenner started this business in 2000 after watching too many San Antonio homeowners get sold insulation that didn’t match the climate, and we’ve spent 25 years fixing those shortcuts. Every tech who walks into your house is background-checked, uniformed, and trained on Owens Corning products specifically, and we also work with Rockwool, Johns Manville, CertainTeed, and Reflectix when another brand fits the job better. Our Done Right Promise is a lifetime workmanship guarantee, meaning if we miss something, we’re back to fix it without a fight. That’s the whole point of hiring a local owner-operated company: we live here, our name is on the door, and we answer the phone live, every time.
Frequently Asked Questions About Owens Corning Insulation Removal and Replacement in San Antonio
No. Owens Corning’s limited lifetime warranty applies to manufacturing defects in the insulation product, not to the labor of removing or replacing it. We’re an independent Owens Corning service provider, so we don’t route warranty claims through the manufacturer, but replacing settled or damaged insulation doesn’t affect any remaining warranty on unaffected areas. If you have questions about your specific warranty, call us at (866) 751-4428 and we’ll help you sort it out.
If your Owens Corning insulation is wet, rodent-contaminated, moldy, or flattened to less than half its original depth, removal is the right call, not just blowing more on top. Adding new insulation over wet or contaminated material locks in the problem and creates a bigger headache later. We’ll tell you honestly which situation you have, and we won’t sell you removal if a top-off does the job.
Most San Antonio attic insulation removal and replacement jobs finish in one to two days depending on attic size, access, and whether air sealing is included. Smaller attics with straightforward access can often be done same-day. Call (866) 751-4428 and we’ll give you a realistic timeline for your house.
Owens Corning blown-in fiberglass at R-38 to R-49 works well in San Antonio’s heat when installed correctly and air-sealed underneath. In some attics we recommend Rockwool or CertainTeed for better moisture resistance or acoustic performance. We’ll recommend what fits your house and your budget, not what’s easiest for us to sell.
Full removal of rodent-contaminated Owens Corning insulation in San Antonio typically adds $0.50 to $1.00 per square foot to the removal cost, covering sanitation and heavier disposal procedures. Replacement costs stay the same as any other blown-in job. For an exact quote, call (866) 751-4428, estimates are free and we never charge a trip fee inside our service county.
Written by Walt Brenner, Owner, Walt’s Insulation at Walt’s Insulation, serving San Antonio and nearby areas.