CertainTeed Insulation Removal & Replacement in San Marcos: What to Know First
We provide independent CertainTeed insulation removal and replacement in San Marcos, with most attic jobs completed in one to two days and a written price delivered before any work starts. Typical CertainTeed removal and replacement projects in this market run between $2,800 and $6,400 depending on square footage, contamination level, and whether the attic floor has been air-sealed. This page is for homeowners who have found CertainTeed insulation in their attic - often from a 2008-2016 build or retrofit - and need to know whether it can be salvaged, what it will cost to remove, and what goes back in its place. Call (737) 337-8049 for a free estimate with a written scope.
How CertainTeed Products Fail - and How We Fix Them
- CertainTeed CertaSpray open-cell foam (2009-2014 batches) shrinks at the stud bay perimeter. We see this in San Marcos homes near the Blanco River corridor where summer attic temperatures exceed 140°F. The foam pulls away from framing, creating convection loops that bypass the R-value entirely. We remove the degraded foam with specialized extraction equipment, then re-seal with current-formulation open-cell or hybrid closed-cell depending on the roof deck configuration.
- CertainTeed InsulSafe SP blown fiberglass settles below labeled depth in homes with active duct leakage. The vibrating metal ductwork - common in San Marcos slab-on-grade construction - sifts the fibers downward over 5-7 years, leaving the top plate exposed. We vacuum the settled material, seal the duct boots and top plates with mastic and foam, then reinstall to a stabilized depth with netting or baffles to prevent recurrence.
- CertainTeed OPTIMA netted batts in kneewalls and bonus rooms fall out of place. The netting sag is usually caused by humidity cycling in San Marcos’s shoulder seasons, where attic moisture swings 40% in a single day. We remove the failed assembly, switch to a rigid-foam or spray-foam approach for the kneewall cavity, and detail the air barrier at the floor joist rim to stop the moisture drive.
- CertainTeed MemBrain smart vapor retarder delaminates when installed over damp cellulose or improperly dried spray foam. We find this in homes where a previous contractor added insulation without addressing roof leaks or bathroom exhaust termination. We remove the contaminated assembly down to the drywall, remediate the moisture source, and reinstall with a properly sequenced vapor profile for our climate zone.
- CertainTeed SoftTouch duct wrap compresses around flex duct bends, reducing both thermal and acoustic performance. In San Marcos’s older subdivisions like Willow Creek and Sagewood, the original wrap was often installed too tight on 90-degree elbows. We strip the compressed wrap, replace with properly sized preformed sections or upgrade to sealed rigid ductwork where accessibility allows, then reinsulate with current CertainTeed or Knauf equivalent.
Our CertainTeed Insulation Removal & Replacement Process
- 1
Call and scheduling. A live person answers. We book a site visit, send a text with your technician’s name, and arrive on schedule - Haven Standard: Arrive on schedule.
- 2
Attic inspection and blower-door baseline. We run a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing. We photograph the CertainTeed product condition, identify contamination sources, and mark air-leak points at top plates, can lights, and penetrations.
- 3
Written price and scope. You get a flat price, written scope, and written warranty before anyone lifts a tool. Haven Standard Clause 1. No work starts without it.
- 4
Air sealing first, then removal. We seal all accessible leaks before disturbing the insulation. This prevents conditioned air from escaping during the removal phase and gives us a clean substrate for the new material.
- 5
Extraction and disposal. We use HEPA-contained vacuum systems for fiberglass or cellulose, and mechanical removal with solvent-assisted cleaning for failed spray foam. Contaminated material is bagged and hauled per Hays County disposal requirements.
- 6
Replacement, blower-door verification, and documentation. New insulation goes in. We run the blower-door again and hand you a single printed page with before-and-after air-changes-per-hour. You also get a Documented Photo Record of the completed work. The 365-Day Done Right Promise applies from this date.
Before
AfterWhat CertainTeed Insulation Removal & Replacement Costs in San Marcos
| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| Clean blown fiberglass removal and replacement (1,200-1,800 sq ft attic) | $2,800-$4,200 | Depth of existing material, accessibility, whether air sealing is included |
| Contaminated insulation removal (rodent, moisture, or smoke damage) | $3,600-$5,800 | Extent of contamination, need for attic floor sanitation, repairs to chewed wiring or ductwork |
| Spray foam removal and reinstallation (open-cell failure) | $4,400-$6,400 | Thickness of existing foam, roof deck access, choice of replacement material |
| Vermiculite testing and removal (if asbestos-positive) | $5,200-$9,800 | Lab confirmation required, HAZMAT disposal, third-party clearance air test |
Most San Marcos homes in the 1,400-2,200 square foot range fall in the $3,200-$4,800 band for a complete removal and replacement with air sealing. We also offer a Free Second Opinion on any written estimate - bring us a competing quote and we will read it with you. Call (737) 337-8049 for an exact quote; estimates are free.
Why San Marcos Homeowners Call Topside Attic Insulation San Marcos for CertainTeed Work
We’re an independent CertainTeed service provider - not affiliated with or authorized by the manufacturer - which means we source replacement materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber with no proprietary lock-in. If your CertainTeed system failed because the product was wrong for the application, we will tell you and spec something better.
Our technicians are background-checked and uniformed. Calls are answered by a live person, 24/7. Wes Okafor and the crew have served the San Marcos area for years, including older slab-on-grade homes near the Texas State University corridor where air sealing at the top plate is routinely skipped and always felt in the utility bill. We also service Reflectix and other radiant barrier systems when those are part of the assembly. Every job closes with a Documented Photo Record and, on applicable work, before-and-after blower-door numbers so the improvement is a number, not a claim. The R-value tells you how slow heat moves through the material - the blower-door number tells you whether any of that matters.
FAQs
CertainTeed’s insulation warranties typically cover material defects, not installation or removal performed by others. If your product is still within the original warranty period and failed due to a manufacturing issue, we document the failure mode with photos and samples you can submit for a claim - but we do not file claims on your behalf. As an independent service provider, our work is backed by our own 365-Day Done Right Promise, not CertainTeed’s. Call (737) 337-8049 to discuss your specific situation.
We can source current-production CertainTeed equivalents when the application calls for it, but we will not match a failed product just to match. In San Marcos’s climate, we often find that homeowners with older CertainTeed open-cell foam are better served by a hybrid or closed-cell replacement at the roofline. We explain the trade-offs and let you decide. Bring us a written estimate and we will give you a Free Second Opinion.
If the existing material is compressed, contaminated, or has failed at the air barrier interface - common with the CertainTeed products we listed above - topping off wastes money because the new layer inherits the old layer’s problems. We test with a blower-door and visual inspection; if the existing insulation is clean, dry, and structurally intact, we will say so and quote a top-off only. If not, we quote removal and replacement with a written scope before any work starts.
Most CertainTeed insulation removal and replacement jobs in San Marcos are scheduled within 3-5 business days of estimate approval. Emergency situations - active roof leaks, rodent infestation, or HVAC contamination - can sometimes be addressed next-day. A live person answers calls 24/7 to check availability. Call (737) 337-8049 for current scheduling.
You receive a written invoice matching your pre-approved price, a Documented Photo Record of the completed work, and on jobs with air sealing, a single printed page showing before-and-after blower-door readings in CFM50 or air-changes-per-hour. This is standard on every job, not available on request. Haven Standard: Have it in writing.
Written by Wes Okafor, Owner, Topside Attic Insulation San Marcos at Topside Attic Insulation San Marcos, serving San Marcos and nearby areas.