Fast, Reliable Spray Foam Insulation Across Schertz
Spray foam insulation in Schertz typically costs $1,800-$4,500 for attic retrofits and $3.50-$6.50 per board foot installed, with most jobs completed in one day. If your home was built between 2000 and 2015 in Fairhaven, Belmont Park, or along FM 1518, there’s a strong chance your original R-30 fiberglass has settled to R-20 or lower, and spray foam is the fix that actually lasts.
We’re the Spray Foam Insulation team at Topside Attic Insulation Schertz, and we serve Schertz from our San Antonio dispatch office. Crews are usually on-site in Schertz within 24-48 hours of your call. We’ve worked the subdivisions off FM 3009, the streets near Pickrell Park, and the newer builds creeping toward Cibolo - we know which builder installed what, and where the shortcuts typically show up. Call (830) 402-5240 for a written price before any work starts.
Why Topside Attic Insulation Schertz Is Schertz’s Preferred Spray Foam Insulation Company
Schertz homeowners leave reviews that mention specifics - the blower-door number they got, the photos showing before and after, the technician’s name. That’s the work we do. We’ve sealed and insulated over 9,000 homes since 2016, and the Schertz jobs are some of our most straightforward because the housing stock is so consistent: wood-frame, slab-on-grade, vented attic, builder-minimum fiberglass that failed predictably.
Our response time to Schertz is same-day or next-day for most calls. We don’t ask you to wait in a callback queue - a live person answers 24/7, and you’ll get a text when your technician is en route with a name and photo. Under Haven Standard: Arrive on schedule, you get a named technician and a text when they are on the way.
We know Schertz’s market because we work it regularly. We understand the JBSA-Randolph rotation cycle, the rental turnover in Ashley Place, and why a home on FM 1518 built in 2006 likely has the exact same insulation failure as its neighbor three doors down. That pattern recognition saves time and keeps our pricing accurate.
Our Spray Foam Insulation Services in Schertz
Open-Cell Spray Foam
Open-cell spray foam in Schertz attics runs $1.80-$3.20 per board foot and is our most common retrofit for vented attic floors. It’s vapor-permeable, which matters in Schertz’s hot-humid climate because it allows attic moisture to dry toward the conditioned space rather than trapping it against the roof deck. We use it after air sealing is complete - never before. In Fairhaven and Belmont Park, where we’ve removed compressed fiberglass batts that had settled to R-20, open-cell applied at 5.5 inches delivers a true R-19 plus the air-sealing benefit that fiberglass never provided.
Closed-Cell Spray Foam
Closed-cell spray foam costs $3.50-$6.50 per board foot in Schertz and is our choice for rim joists, garage ceilings, and any application where moisture rejection or structural rigidity matters. At 2 inches it hits R-14 and acts as its own vapor barrier. We specify closed-cell for Schertz homes with open rim joists along FM 3009 and FM 1518, where hot attic air pours into wall cavities and where Winter Storm Uri proved that uninsulated perimeter framing can’t protect pipes. Closed-cell also goes on garage ceilings in Schertz’s newer homes, where the bonus room above is unusable for three months each summer without it.
Rim Joist Spray Foam
Rim joist spray foam in Schertz is typically $800-$1,800 for a full perimeter treatment, and it’s the single highest-ROI upgrade we sell in this market. The mid-2000s tract homes here were built with open rim joists - the band of framing where the first floor meets the foundation - and that’s a direct path for 150°F attic air to enter your walls in summer and for 20°F outdoor air to freeze pipes in winter. We seal rim joists with closed-cell foam after blower-door testing pinpoints the worst leakage. In Schertz, this one fix often drops the blower-door reading by 15-25% before we touch the attic.
Garage Ceiling Spray Foam
Garage ceiling spray foam in Schertz runs $1,200-$2,800 depending on whether the garage is attached and whether ductwork runs through it. With summer attic temperatures hitting 140-155°F, an uninsulated garage ceiling radiates heat into bonus rooms and makes attached garages unbearable. We use open-cell or closed-cell depending on whether there’s living space above and whether moisture control is needed. Every garage ceiling job includes photo documentation of the bay-by-bay application.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Schertz
We source spray foam materials from Demilec, Owens Corning, and Johns Manville - no proprietary lock-in, so we match the product to the assembly rather than forcing a one-size-fits-all approach. For Schertz’s hot-attic climate, we typically specify Demilec’s open-cell formulas for attic floors and Owens Corning closed-cell systems for rim joists and garage ceilings. Stock is held regionally, so material lead times don’t delay Schertz jobs. You’ll see the product data sheet in your written scope before anyone starts.
Common Spray Foam Insulation Problems We See in Schertz Homes
- Settled fiberglass in Fairhaven and Belmont Park attics. The R-30 batts installed by DR Horton, Lennar, and other production builders in the 2000s have compressed to R-20 or lower after 10-15 years of heat cycling. Homeowners feel it as hot ceilings in August and electric bills that climb $100-$200 from May to September.
- Open rim joists in FM 3009 and FM 1518 subdivisions. These mid-2000s builds skipped rim joist air sealing to hit price points, creating a thermal bypass that lets superheated attic air circulate through wall cavities. The fix is closed-cell spray foam at the rim, not more attic insulation.
- Undetected degradation in JBSA-Randolph rental properties. Military families rotate every 2-3 years and rarely commission energy audits, so degraded fiberglass and unsealed top plates sit untouched until a $400 summer bill forces the current tenant or owner to call. By then, the attic is often 20-30% below original R-value.
- Pipe freeze risk from under-insulated perimeter framing. Winter Storm Uri in February 2021 burst pipes across Schertz in homes where rim joists and exterior walls lacked proper air sealing. Spray foam at the rim joist and exterior wall plates is the only insulation upgrade that addresses both summer heat gain and winter freeze protection.
Pricing for Spray Foam Insulation in Schertz, TX
Most spray foam insulation jobs in Schertz fall in these ranges:
| Application | Typical Range | Notes |
|---|---|---|
| Open-cell attic floor (1,500 sq ft) | $1,800-$3,200 | After air sealing; 5.5″ depth |
| Closed-cell rim joist (full perimeter) | $800-$1,800 | 2″ minimum; includes prep |
| Closed-cell garage ceiling | $1,200-$2,800 | Varies with living space above |
| Full attic retrofit (remove + replace) | $3,200-$4,500 | Includes removal, air seal, foam |
| Spray foam roof deck (unvented attic) | $4,500-$7,500 | Code-compliant conditioned attic |
What moves the price: accessibility (steep roof pitch or limited attic hatch size), existing insulation removal, and whether the home needs extensive air sealing before foam can be applied. We never quote spray foam over an unsealed attic floor - that’s Haven Standard, not an upsell. Every Schertz homeowner gets a written price with line-item scope before work starts. Estimates are free. Call (830) 402-5240.
We Also Serve Cities Near Schertz
Our crews work Spray Foam Insulation in Schertz and the surrounding corridor: Universal City to the south, Cibolo to the east, Converse to the southwest, and New Braunfels to the northeast. Same written-price standard, same documented photo record, same 365-Day Done Right Promise. Dispatch is coordinated from our San Antonio office.
Serving Schertz, TX - Our Local Coverage Area
We’re based in the Schertz area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Spray Foam Insulation in Schertz
They don’t have R-30 anymore. The fiberglass batts installed by production builders in Schertz subdivisions like Fairhaven and Belmont Park have compressed and settled to R-20 or lower after 10-15 years of 140-155°F attic heat cycling. Spray foam delivers both the thermal resistance and the air sealing that degraded fiberglass never provided. Call (830) 402-5240 for a free assessment - we’ll measure what you actually have.
Open-cell is better for most vented attic floors in Schertz because it’s vapor-permeable and cost-effective at the depths needed for code R-value. Closed-cell is reserved for rim joists, garage ceilings, and roof decks where moisture rejection or structural rigidity matters. We specify based on blower-door testing and your home’s assembly, not a default product. Written scope included.
Yes, if your home was built along FM 3009 or FM 1518 in the mid-2000s. Those subdivisions were built with open rim joists that bypass attic insulation entirely, and closed-cell spray foam there typically pays for itself in 2-3 summers through reduced AC runtime. We often do rim joists first, then attic foam, so you see the blower-door improvement in stages.
Yes. Closed-cell spray foam at rim joists and exterior wall plates is the most effective insulation upgrade for freeze protection because it air-seals and insulates simultaneously. The homes that suffered burst pipes in Schertz during February 2021 overwhelmingly had unsealed perimeter framing. Open-cell in the attic helps less with freeze risk; rim joist closed-cell is the critical fix.
Hot ceilings in August, electric bills climbing past $350-$400, rooms that won’t stay cool despite the AC running constantly, or visible compression and gaps in attic fiberglass. We verify with a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing - and thermal imaging. The photo record and readings are yours to keep. Call (830) 402-5240 to schedule.
Ready to stop paying for the air your attic is leaking? Call Topside Attic Insulation Schertz at (830) 402-5240. A live person answers 24/7. We’ll schedule your free estimate, deliver a written price before any work starts, and leave you with a documented photo record and before-and-after blower-door numbers so you can see exactly what you paid for.
Written by Wes Okafor, Owner at Topside Attic Insulation Schertz, serving Schertz since 2016 under The Haven Standard.