CertainTeed Insulation Removal & Replacement in Seguin: What to Know First
We provide independent CertainTeed insulation removal and replacement in Seguin, typically completing attic jobs in one to two days with a written price delivered before any work starts. Most CertainTeed removal and replacement projects in Seguin homes run between $2,800 and $6,400 depending on attic square footage, contamination level, and whether the original product was blown-in fiberglass, batts, or dense-pack cellulose. Call (830) 549-6646 for a free estimate with a written scope.
This page is for Seguin homeowners who have found CertainTeed insulation in their attic, walls, or crawl space and need it removed, whether due to age, moisture damage, rodent contamination, or a planned remodel. We also service Reflectix and other major brands.
How CertainTeed Products Fail - and How We Fix Them
- CertainTeed InsulSafe SP blown-in fiberglass settles below labeled R-value in Seguin’s humidity. The product was marketed at R-30 for 10.25 inches, but we’ve measured settled depths of 7 to 8 inches in Seguin attics after 8 to 12 years, where summer attic temperatures exceed 140°F and daily humidity swings compress the glass fibers. We remove the settled material entirely and replace with a modern blown-in product at proper depth, documenting the new depth with photos.
- CertainTeed SpeedyR rolled batt insulation compresses around wiring and top plates, creating thermal bypasses. The flexible batt design, common in 2005 to 2015 builds near Guadalupe Regional Medical Center, sags when installers tucked it around electrical runs rather than cutting and fitting properly. We remove the compressed batts, seal the top plates and wire penetrations with fire-rated caulk and foam, then install new insulation that maintains full contact with the drywall below.
- CertainTeed OPTIMA dense-pack cellulose breaks down in roof leak zones common to Seguin’s wind-driven rain events. The borate-treated cellulose resists fire and pests, but once saturated during a leak, it cakes against studs and loses its R-value permanently. We extract the compacted cellulose with commercial vacuums, treat the affected framing for mold if needed, and replace with fresh material after the roof repair is verified dry.
- CertainTeed SmartBatt with MoistureSense technology triggers premature removal calls when the indicator strips discolor. The strips are designed to show moisture events, but in Seguin’s spring and fall, attic dew points can trigger temporary surface condensation that fades within days, leaving permanent pink-to-purple strip changes that worry homeowners. We test the surrounding material with a moisture meter; if readings are below 15 percent, we explain the false positive and only remove if the homeowner requests it or if real moisture damage exists.
- CertainTeed fiberglass batts from the 1990s and early 2000s lose their paper facing adhesion in Seguin’s heat. The asphalt-impregnated kraft paper delaminates and falls, leaving loose fiberglass that drifts with attic air movement. We remove all loose material, vacuum the deck clean, and install new insulation with proper air sealing so the replacement stays put and performs.
Our CertainTeed Insulation Removal & Replacement Process

- 1
Call and scheduling. A live person answers 24/7. We schedule a site visit, usually within 48 hours.
- 2
Attic inspection and contamination assessment. We enter the attic, identify the CertainTeed product line, test moisture content, photograph conditions, and run a blower-door test - a pressurization diagnostic that shows, in one number, how much conditioned air your building envelope is losing.
- 3
Written price before any work starts. You receive a flat price, written scope, and written warranty. No work begins until you approve in writing.
- 4
Removal and deck preparation. We use commercial HEPA vacuums and negative air machines to remove old insulation without contaminating living spaces. Air sealing of top plates, can lights, and penetrations is completed before any new insulation goes in.
- 5
Replacement installation and verification. New insulation is installed to specified depth or density. We run a second blower-door test and provide before-and-after readings. The report goes home with you - the numbers do the talking.
- 6
Documented Photo Record and cleanup. You receive photos of the empty attic, the sealed penetrations, the installed product, and the final readings. Crew vacuums the work path before leaving.
Before
AfterWhat CertainTeed Insulation Removal & Replacement Costs in Seguin
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| Clean removal of settled blown-in fiberglass, no contamination | $2,800 - $4,200 | Attic square footage, accessibility, whether decking must be removed |
| Contaminated removal (rodent, moisture, mold) | $4,000 - $6,400 | Extent of contamination, need for antimicrobial treatment, vapor barrier replacement |
| Dense-pack cellulose removal from walls or cathedral ceiling | $5,500 - $8,200 | Cavity access method (interior drywall cut vs. exterior siding removal), repair scope |
| Full attic replacement with air sealing and modern blown-in | $3,800 - $7,500 | Insulation type selected, blower-door target, any duct sealing added |
These are real Seguin-market ranges based on jobs we’ve completed in neighborhoods from Kingsbury to McQueeney. The only way to get your exact price is a site visit, which is free. Call (830) 549-6646 to schedule.
Why Seguin Homeowners Call Topside Attic Insulation Seguin for CertainTeed Work

We’ve removed and replaced CertainTeed products in Seguin since 2016, and we know the local failure patterns: the settled InsulSafe SP in 1990s ranch homes near Guadalupe Regional Medical Center, the compressed SpeedyR batts in 2008-era subdivisions, the moisture-stained OPTIMA in homes that took wind-driven rain during spring storms. Wes Okafor and our crew run blower-door tests on every applicable job and hand you printed pre- and post-installation reports with the actual ACH50 numbers.
We are an independent CertainTeed service provider, not affiliated with or authorized by CertainTeed. That independence means we source replacement materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, and others, with no proprietary lock-in. Our 365-Day Done Right Promise applies to all completed work. Calls are answered by a live person, 24/7.
FAQs
CertainTeed insulation warranties on installed products typically expired 10 to 20 years after installation, so most Seguin homes with CertainTeed insulation are already outside the warranty period. If your home is newer and warranty coverage might apply, we document the existing product condition with photos before removal so you have evidence if a claim is possible. Call (830) 549-6646 and we will review your installation paperwork with you.
We can source current CertainTeed lines if you prefer brand continuity, but we typically recommend comparing specifications across brands because insulation performance is measured by R-value, density, and air permeability, not brand name. We carry Owens Corning, Johns Manville, Knauf, Rockwool, and others, and we select based on your attic conditions and budget, not on distributor incentives. The written scope lists exactly what product will be installed before you approve.
Adding over old insulation costs less upfront, but it is rarely the better value. Settled or contaminated CertainTeed insulation compresses new material, traps moisture, and conceals air leaks that should be sealed first. We have opened attics in Seguin where two layers of fiberglass were hiding rotted decking and active roof leaks. Removal plus proper air sealing and replacement costs more initially but delivers measurable performance gains you can see on the blower-door report. We offer free second opinions on any written estimate if you want us to evaluate a “cap over” proposal.
Most CertainTeed removal and replacement jobs are scheduled within 5 to 10 business days of estimate approval. Contaminated jobs requiring specialized disposal or mold remediation may take longer to permit and schedule. Emergency situations, such as active roof leaks soaking insulation, are prioritized. Call (830) 549-6646 to check current availability.
You do not need to leave, but we recommend pets and sensitive individuals be out of the house during removal and for two hours after, while our HEPA filtration and negative air machines complete their cycle. The process is loud. We seal the attic hatch and any interior access points with plastic sheeting before vacuuming begins. You receive photos of the containment setup as part of your Documented Photo Record.
Ready for a written price on your CertainTeed insulation removal and replacement in Seguin? Call (830) 549-6646 today. Estimates are free, and a live person will answer.
Written by Wes Okafor, Owner & Lead Insulation Technician, Topside Attic Insulation Seguin at Topside Attic Insulation Seguin, serving Seguin and nearby areas.