CertainTeed Blown-In Insulation in Schertz: What to Know First
We provide independent CertainTeed blown-in insulation service in Schertz, typically turning around standard attic jobs in one day with a written price delivered before any work starts. Most full attic installs with air sealing run between $2,800 and $5,400 depending on square footage and existing conditions. This page is for homeowners who already have CertainTeed insulation in their attic or walls and need a top-up, replacement, or new install done correctly, not just blown in over whatever’s there. Call (830) 402-5240 for a free estimate with a written scope.
How CertainTeed Products Fail - and How We Fix Them
- InsulSafe SP settling in pitched attics. This fiberglass blown-in product is common in Schertz builds from 2012 to 2019, and we’ve found it compacts to 60-70% of labeled depth within five to seven years in homes with unsealed top plates. The R-value drops proportionally. We remove the settled material, seal the plates and wire penetrations with fire-rated caulk and rigid baffles, then reinstall to true depth with a depth-stick photo log.
- TrueComfort cellulose bridging over irregular joist bays. CertainTeed’s cellulose line performs well when dense-packed, but in retrofit top-up jobs it can bridge across uneven framing rather than filling corners. We see this in older Schertz homes near I-35 where ceiling joists vary by an inch or more. Our crew uses a 2.5-inch reduction hose and slow-fill technique to pack each bay fully before moving the machine.
- SmartBatts misidentified as blown-in candidates. Some homeowners call for blown-in top-up and don’t realize their attic has CertainTeed SmartBatts, a friction-fit fiberglass batt with a kraft facing. Blowing loose-fill over faced batts traps moisture against the facing. We pull the batts, inspect the deck for staining, and only then select the appropriate blown-in product for the assembly.
- MemBrain vapor retarder degradation in hot attics. CertainTeed’s smart vapor retarder can delaminate in Schertz attics that exceed 130°F regularly, which is most of them from June through September. When we find MemBrain that’s turned brittle or detached at the staples, we remove it and discuss whether the assembly needs a new retarder strategy or if the air sealing alone handles the moisture drive.
- Optima dense-pack settling in 2×4 walls. Optima is a high-performance fiberglass system meant for dense-pack sidewalls, but if the original installer didn’t hit 3.5 lbs per cubic foot, it’ll settle and leave a gap at the top plate within two to three years. We drill test holes and use a fill tube with pressure monitoring to hit spec, then plug with color-matched wood bungs rather than foam blobs.
Our CertainTeed Blown-In Insulation Process
- 1
Call and scheduling. A live person answers, or you can text. We book a diagnostic visit with a written price commitment.
- 2
Pre-work inspection and blower-door test. We pressurize the house to measure CFM50 - the single number that tells us how much conditioned air is escaping through the envelope. In Schertz, we typically see 3,500 to 6,000 CFM50 on homes built before 2010.
- 3
Air sealing before insulation. We seal top plates, can lights, plumbing and electrical penetrations, and chimney chases. Seal the leaks first. Then insulate. The attic doesn’t care how thick the insulation is if the air is still moving through it.
- 4
Product selection and install. We match the CertainTeed line to the assembly, or cross to Johns Manville, Knauf, or Owens Corning if the original product is discontinued or inappropriate for the fix. No proprietary lock-in.
- 5
Post-install verification and documentation. We run the blower-door again, photograph depth sticks at randomized locations, and deliver a printed thermal-imaging summary with the final invoice. The homeowner keeps the photo record and the numbers.
What CertainTeed Blown-In Insulation Costs in Schertz
| Job Type | Typical Range | What Moves Price |
|---|---|---|
| Attic top-up (1,200-1,800 sq ft) | $1,400 - $2,600 | Depth needed, deck accessibility, whether old material must be removed |
| Full attic removal and replacement | $3,200 - $5,400 | Volume of old insulation, presence of rodent damage, deck repairs |
| Dense-pack wall retrofit (per 1,000 sq ft of wall) | $2,800 - $4,200 | Cavity depth (2×4 vs 2×6), siding type, interior or exterior access |
| Air sealing package (standalone) | $1,200 - $2,400 | Number of penetrations, can light count, chimney chase complexity |
We don’t do “call for pricing.” Under Haven Standard Clause 1, you get a flat written price, a written scope, and a written warranty before anyone lifts a tool. Bring us a competing written estimate and we’ll read it with you - free second opinion, no obligation. Call (830) 402-5240.
Why Schertz Homeowners Call Topside Attic Insulation Schertz for CertainTeed Work
We’ve been working the Schertz corridor for several years now, including jobs in the Sedona subdivision off FM 1518 where summer attic temps regularly push past 140°F before a single batt goes in. Wes Okafor and the crew treat air sealing as a hard prerequisite, not an upsell, and we publish before-and-after blower-door numbers on every applicable job so you can verify the performance change you paid for. The 365-Day Done Right Promise applies to all completed work, and our materials come from multiple suppliers including CertainTeed, Owens Corning, Johns Manville, Knauf, and Reflectix - so the recommendation is based on your assembly, not our inventory. Every job closes with a Documented Photo Record, and a live person answers calls 24/7.
FAQs
No. CertainTeed’s product warranties cover manufacturing defects and are not contingent on who installs the material, provided the installation meets their published guidelines. We follow those guidelines and document our work so any future claim has backing. If you’re concerned about a specific warranty term, bring your paperwork to the estimate and we’ll review it with you. Call (830) 402-5240 to schedule.
Sometimes, but not always, and we won’t pretend otherwise. CertainTeed has discontinued some blown-in SKUs, and in other cases a different product performs better for the specific failure we’re addressing. We source from eight manufacturers including CertainTeed, so the recommendation is based on what your attic actually needs. You’ll see the product spec in writing before work starts.
Top-up is cheaper upfront, but it’s often the wrong spend. If your existing insulation is settled below half its original depth, contaminated, or installed over an unsealed attic floor, adding more on top compounds the problem. We inspect and test first, then give you both options in writing with the performance difference explained. Most Schertz homeowners who plan to stay in the home more than five years choose full replacement with proper air sealing.
Most standard attic jobs are completed in one day. Dense-pack wall work or full removal-and-replace jobs may run two days. We don’t schedule more than we can finish properly, and Wes has been known to cancel a Friday install if the pre-work inspection turns up something the crew needs to address first. Call (830) 402-5240 for current availability.
A printed thermal-imaging summary, post-install depth-stick photo log, before-and-after blower-door readings on applicable jobs, and a final invoice that references the original written scope and warranty. This is standard on every job, not available on request. Under the Haven Standard, you know what leaving looks like before we arrive.
Written by Wes Okafor, Owner, Topside Attic Insulation Schertz at Topside Attic Insulation Schertz, serving Schertz and nearby areas.