CertainTeed Blown-In Insulation in Boerne: What to Know First
As an independent CertainTeed service provider, we install and service blown-in insulation across Boerne and the Hill Country, with most attic jobs completed in one day and pricing put in writing before any work starts. Our crews handle CertainTeed’s blown-in cellulose, fiberglass, and dense-pack wall systems, and we won’t blow a single bag until the attic floor is sealed and the blower-door numbers are recorded. If you’re seeing uneven temperatures, rising cooling bills, or insulation settling in your Boerne home, call (830) 529-7780 for a free estimate with a written price delivered on the spot.
How CertainTeed Products Fail - and How We Fix Them
- InsulSafe SP settling in kneewalls and bonus rooms. This fiberglass blown-in product is common in 2015-2020 Boerne builds, but it was often installed at insufficient depth over irregular framing in the Hill Country’s freeze-thaw cycle. The material compacts where roof pitches meet exterior walls, creating thermal bypasses we map with thermal imaging. We remove the settled layer, seal the top plates and electrical penetrations with fire-rated caulk and foam, then reinstall to the correct depth per CertainTeed’s updated coverage chart.
- TrueSoft cellulose bridging over can lights and chases. CertainTeed’s cellulose line performs well when dense-packed, but in Boerne attics with original non-IC-rated recessed housings, the material forms air pockets around hot fixtures. This isn’t a product defect; it’s an air-sealing omission from the original install. We pull back the cellulose, install proper ten-inch clearance barriers or replace with IC-rated LED housings, then repack with conditioned air sealed at the ceiling plane.
- Optima dense-pack sagging in balloon-framed walls. Older homes near the Cibolo Nature Center and downtown Boerne often have continuous wall cavities without fireblocking. Optima is designed for dense-pack at 3.5 pounds per cubic foot, but retrofit installers sometimes under-densify to speed the job. The material sags within two to three years, creating voids at the second-floor rim joist. We drill and scope every cavity, then repack with verified density using a tube-fill method and real-time weight monitoring.
- ClimateFlex fiberglass moisture retention in vented crawl spaces. CertainTeed’s ClimateFlex is marketed for broad application, but in Boerne’s spring humidity spikes, it underperforms when blown against unsealed crawl space subfloors. The glass fibers don’t degrade, but they become a filter for rising moisture that condenses on HVAC ducts above. We encapsulate first, installing a Class I vapor barrier and sealing rim joists, then apply ClimateFlex only after the space is conditioned or semi-conditioned.
- Speedy 2.0 machine-applied inconsistency at attic hatches and pull-down stairs. This loose-fill fiberglass is common in production homes throughout Fair Oaks Ranch and Balcones Creek, but the high-velocity application often misses the perimeter of attic access points by twelve to eighteen inches. We hand-place Speedy 2.0 at hatch perimeters, install a weatherstripped and insulated hatch cover with proper damming, then verify with smoke pencil testing so the thermal boundary is continuous.
Our CertainTeed Blown-In Insulation Process

- 1
Call and schedule. A live person answers, or you can text. We book a diagnostic visit with a named technician and send a text when they’re en route.
- 2
Blower-door test and thermal imaging. We pressurize the house to 50 pascals and record the CFM50 reading. In Boerne’s climate, anything above 3,500 CFM50 on a home under 3,000 square feet usually means significant attic bypasses.
- 3
Air sealing first, always. Seal the envelope first. Then fill it. We seal top plates, wire and plumbing penetrations, can light housings, and chimney chases with appropriate materials. No insulation touches an unsealed surface.
- 4
Product selection and written price. We specify the CertainTeed line, verify bag counts against the coverage calculator, and give you a flat price in writing. Haven Standard Clause 1: no work starts without it.
- 5
Installation with density verification. For cellulose, we monitor pounds per cubic foot in real time. For fiberglass, we measure settled depth at five points per 1,000 square feet. We photograph everything.
- 6
Final blower-door test and documentation. We pressurize again, print the before-and-after report in pascals, and deliver your Documented Photo Record. The 365-Day Done Right Promise begins when you sign.
What CertainTeed Blown-In Insulation Costs in Boerne
Most attic top-up jobs with CertainTeed blown-in fiberglass or cellulose in a Boerne home between 1,800 and 2,800 square feet run $1,400 to $2,600, including air sealing of accessible penetrations. Full removal and replacement of settled or contaminated material, plus comprehensive air sealing, typically falls between $3,200 and $5,800. Dense-pack wall work with CertainTeed Optima in a standard three-bedroom home runs $2,800 to $4,500 depending on cavity count and exterior finish type.
What moves the price: accessibility (steep-pitch attics in The Dominion additions require scaffolding), existing material condition (rodent-contaminated insulation adds removal and sanitization), and whether the home needs baffle installation for soffit venting, which we see frequently in 1990s Boerne construction with inadequate intake ventilation. We also service Reflectix radiant barrier systems when they’re part of a hybrid assembly.
Every estimate is free, every price is written, and we offer a Free Second Opinion on any competing written quote. Call (830) 529-7780 to schedule.
Why Boerne Homeowners Call Topside Attic Insulation Boerne for CertainTeed Work

We’ve sealed and insulated over 9,000 homes since 2016, and the ones in Boerne keep us honest about humidity management and the stack effect in Hill Country construction. Wes Okafor runs a blower-door test on every applicable job and hands homeowners a printed pressure-differential report in pascals, not promises. Our technicians are background-checked and uniformed, and we carry Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber - no proprietary lock-in means we specify what’s right for your assembly, not what’s in our warehouse. The 365-Day Done Right Promise is in writing before anyone lifts a tool. That’s Haven Standard.
FAQs
No. CertainTeed’s product warranty covers manufacturing defects in the material itself, not the installation. As an independent CertainTeed service provider, we follow installation specifications precisely and document coverage depth and density so any future claim has supporting evidence. If you’re concerned about a specific product registration, we photograph bag serial numbers and include them in your Documented Photo Record. Call (830) 529-7780 if you need help interpreting your existing warranty language.
Most completed in one day, with larger or more complex Boerne homes occasionally requiring a second morning for dense-pack wall work or extensive air sealing. We arrive with the material specified in your written scope, so there’s no delivery delay. You’ll receive a text when the crew is thirty minutes out, and we don’t leave until the final blower-door test is complete and the photo record is uploaded. For scheduling availability, call (830) 529-7780.
Top-up is cost-effective when the existing material is dry, uncontaminated, and the original depth was within specification. We remove and replace when we find moisture staining, rodent activity, or significant settling below R-30 equivalent in Boerne’s climate zone. During your free estimate, we probe depth, test for moisture content, and scope cavities where accessible. The written price covers whichever path we recommend, with no change orders once work begins. Call (830) 529-7780 for an assessment.
We can match CertainTeed’s current blown-in lines, but we won’t top up incompatible materials - fiberglass over settled cellulose, for instance, creates a stratified layer that traps moisture at the boundary. If your existing insulation is a discontinued CertainTeed SKU, we’ll identify it during inspection and specify the closest compatible replacement with adjusted coverage rates. We also carry Reflectix and other brands for hybrid assemblies. Call (830) 529-7780 to schedule a compatibility check.
A printed blower-door report with before-and-after CFM50 and ACH50 figures, a Documented Photo Record of installation depth and coverage, your written scope and warranty, and the final invoice matching your original written price. Under Haven Standard, you leave with more documentation than you arrived with. For questions about what’s included on your specific CertainTeed job, call (830) 529-7780.
Ready to get your CertainTeed insulation assessed? Call (830) 529-7780 or text to schedule your free estimate. We’ll put a written price in your hand before any work starts, and you’ll have blower-door numbers on paper when we leave.
Written by Wes Okafor, Owner, Topside Attic Insulation Boerne at Topside Attic Insulation Boerne, serving Boerne and nearby areas.