CertainTeed Spray Foam Insulation in Boerne: What to Know First
We provide independent CertainTeed spray foam insulation service in Boerne, with most diagnostic appointments available within 24 to 48 hours and repair work scheduled same-day once we have a written scope agreed to. Most CertainTeed spray foam jobs in Boerne homes run between $1,800 and $4,500 depending on cavity depth, foam type, and whether we’re treating a roof deck, rim joist, or garage ceiling. We do not start work without a written price, and we do not ask you to call for a quote - the estimate is free, detailed, and delivered before any tool leaves the truck.
This page is for Boerne homeowners who have CertainTeed insulation products in their building envelope and need open-cell or closed-cell spray foam work, whether that’s a new install in a Hill Country addition or remediation where existing foam has failed. If you’re seeing odor issues, shrinkage, or thermal performance drop-off in a CertainTeed-insulated space, we can diagnose it and document the fix. Call (830) 529-7780 to schedule.
How CertainTeed Products Fail - and How We Fix Them
- CertainTeed CertaSpray Open-Cell shrinkage in vented attics. CertaSpray OCX-2 can pull away from rafter edges in Boerne’s combination of high summer attic temperatures and winter humidity swings, leaving a thermal bypass at the framing interface. We cut back the separated foam, reseal the substrate with a compatible primer, and reinstall to full depth - then run a blower-door test to confirm we didn’t create a new leak path.
- CertainTeed CertaSpray Closed-Cell density loss in rim joists. The CC-200 series can develop micro-voids when applied over cold masonry in January, common in Boerne’s older stone-veneer homes near Main Street. We remove the compromised section, verify the wall plate is dry with a moisture meter, and reapply at the manufacturer-specified temperature and pass thickness - typically 2 inches per pass, no more.
- CertainTeed InsulSafe SP vented attic misidentification. Homeowners sometimes mistake blown fiberglass for spray foam when scheduling; we’ve arrived at Boerne jobs where the “spray foam problem” was actually InsulSafe SP settled around a can light. We verify the product line before quoting - if it’s blown fiberglass, we quote the appropriate remediation, not spray foam you don’t need.
- CertainTeed SmartBatt with spray foam hybrid failures. In newer Boerne construction, we’ve seen SmartBatt fiberglass installed against CertaSpray closed-cell in wall cavities without a proper separation layer, trapping moisture at the interface. We remove both materials, dry the cavity with targeted airflow, and reinstall with the correct vapor-profile sequencing - foam first, then batt if the design calls for it, never the reverse.
- CertainTeed spray foam odor retention in garage ceilings. CertaSpray OCX-2 applied to garage ceiling undersides in Boerne’s Fair Oaks Ranch and Balcones Creek areas can retain automotive and solvent odors if the topcoat isn’t specified correctly. We assess whether the original install used an ignition barrier or thermal barrier coating, then apply a compatible sealant that maintains fire rating while sealing the foam surface.
Our CertainTeed Spray Foam Insulation Process

- 1
Call and schedule. A live person answers (830) 529-7780 24/7. We book a diagnostic window and text you when the technician is en route - Haven Standard: Arrive on schedule, named technician, no callback windows measured in business days.
- 2
On-site diagnostic and product identification. We identify your CertainTeed product line by visual inspection and, where needed, core sample. We check for the failure modes above, run a blower-door test if air leakage is suspected, and photograph everything for the Documented Photo Record you’ll receive.
- 3
Written scope and price. Before any work starts, you get a flat price, written scope, and written warranty - Haven Standard Clause 1. If you have a competing estimate, we provide a Free Second Opinion and read it with you.
- 4
Prep and air sealing. Seal the envelope first. Then fill it. We complete top plate sealing, can light boxing, and penetration treatment before foam touches substrate - never the reverse.
- 5
Spray foam application. We apply CertainTeed-compatible open-cell or closed-cell product to specification, monitoring substrate temperature and pass thickness. We do not claim exclusive or preferred status with CertainTeed - we source from multiple manufacturers including CertainTeed, Demilec, and Icynene - but we follow CertainTeed’s published application parameters when working with their products.
- 6
Testing, documentation, and closeout. On applicable jobs, we run a before-and-after blower-door test and hand you the printed pressure-differential report in pascals. You get the Documented Photo Record, the written warranty, and our 365-Day Done Right Promise - if it’s not done right, we make it right.
What CertainTeed Spray Foam Insulation Costs in Boerne
| Job Type | Typical Range in Boerne | What Moves the Price |
|---|---|---|
| Open-cell spray foam, standard attic (1,200-2,000 sq ft) | $1,800 - $3,200 | Cavity depth, accessibility, existing removal required |
| Closed-cell spray foam, rim joist (typical 1,500 sq ft home) | $2,400 - $4,000 | Foundation type, moisture remediation needed, ignition barrier |
| Closed-cell spray foam, garage ceiling | $1,600 - $2,800 | Area, coating specification, odor-seal requirements |
| Spray foam removal and replacement (remediation) | $3,500 - $6,500 | Extent of failed material, substrate damage, disposal |
These ranges reflect what we’ve written for Boerne homes in 2024 and 2025. Your job may fall outside them if we’re dealing with a custom roof deck in a Hill Country contemporary or a historic stone home with irregular framing. The estimate is free, the price is written before work starts, and there is no charge for the diagnostic visit that produces it. Call (830) 529-7780.
Why Boerne Homeowners Call Topside Attic Insulation Boerne for CertainTeed Work

We’ve sealed and insulated over 9,000 homes since 2016, and a growing share of our Boerne work involves remediation of spray foam that was installed without proper air sealing or substrate prep - the kind of job where the homeowner has a certificate from the original installer but still has a $400 summer electric bill. Wes Okafor keeps a well-used copy of the ACCA Manual J on his truck for exactly these conversations: pulling it out at kitchen tables in Timberwood Park or near Boerne City Lake to show why R-38 in an attic floor performs differently than R-38 in a cathedral ceiling when the air barrier is compromised.
Our crews are background-checked and uniformed. Calls are answered by a live person, 24/7. We also service Reflectix radiant barrier systems, so if your CertainTeed job reveals a need for hybrid treatment - foam plus radiant barrier in a vented attic, for instance - we don’t hand you off to another contractor. The 365-Day Done Right Promise applies to all completed work, and the documentation is yours to keep: photos, blower-door readings, written scope, written warranty.
FAQs
No - CertainTeed’s product warranty covers material defects regardless of who installs or services it, provided the original application met their specifications. What voids coverage is improper remediation, which is why we document our substrate conditions and application parameters. If your original install was done by a CertainTeed-certified contractor, we note their work in our scope and preserve any transferable warranty documents you have. Call (830) 529-7780 and bring your paperwork; we’ll read it with you.
We source CertainTeed foam when the job calls for product-line continuity, particularly in warranty-adjacent remediation where matching density and vapor permeance matters. We also source from Demilec, Icynene, and other manufacturers when their specifications better fit the Boerne climate condition - hot summers, occasional hard freezes, and the limestone substrate moisture patterns common in Kendall County. We explain the choice in the written scope and do not charge differently for either path.
Repair is viable when the failure is localized - shrinkage at a rafter edge, a void in a single rim joist bay, odor retention in a defined area. Full replacement is necessary when the foam was applied to a wet substrate, when the wrong product was used for the cavity type (open-cell where closed-cell was required), or when the failure pattern indicates systemic application error. We make this determination with a core sample and moisture meter, not by eye, and we show you the evidence before quoting either path. Estimates are free - call (830) 529-7780.
Diagnostic appointments are typically available within 24 to 48 hours. Once the written scope is signed, most repair and remediation work starts within 3 to 5 business days, weather permitting - substrate temperature requirements for closed-cell application can push January and February starts by a day or two. We do not schedule work we cannot complete to spec; if conditions aren’t right, we tell you before we take a deposit. Call (830) 529-7780 to check current availability.
You receive a Documented Photo Record of all work areas, a written invoice matching the pre-approved scope and price, a written warranty, and - on applicable jobs - before-and-after blower-door readings in CFM50 and pascals. This is Haven Standard: Have it in writing. Wes Okafor hands the pressure-differential report to homeowners personally when he’s on site, or the lead technician delivers it when he’s managing multiple crews. Either way, the numbers are on paper, not just a claim.
Written by Wes Okafor, Owner, Topside Attic Insulation Boerne at Topside Attic Insulation Boerne, serving Boerne and nearby areas.