Spray Foam Insulation in Cibolo - Same-Day Service, Done Right the First Time

Fast, Reliable Spray Foam Insulation Across Cibolo

Spray foam insulation in Cibolo typically runs $1,800-$4,500 for attic applications, $900-$2,200 for garage ceilings, and $600-$1,400 for rim joist sealing, with most jobs completed in one day. Our crews serve Cibolo from our San Antonio office, and we dispatch to neighborhoods like The Crossvine, Turnberry, and Buffalo Crossing with same-day or next-day availability. Call (830) 402-5240 for a written price before any work starts.

Call (830) 402-5240

We’ve sealed and insulated more than 9,000 homes since 2016, and Cibolo’s production-built housing stock keeps us busy. The city grew fast between 2005 and today, filled with DR Horton, Lennar, and similar volume-built homes that share the same insulation deficiencies. We know what we’ll find before we pull back the first batt.

Why Topside Attic Insulation Schertz Is Cibolo’s Preferred Spray Foam Insulation Company

Our reputation in Cibolo comes from documenting what we find, not promising what we can’t prove. Homeowners in The Crossvine and nearby subdivisions call us because we publish before-and-after blower-door numbers on every applicable job. That pressurization reading, measured in CFM50, shows in one figure exactly how much conditioned air your home was losing before we started and how much we stopped.

Response time matters in July, when Cibolo attic temperatures exceed 150°F and your HVAC runs nonstop. We typically schedule Cibolo jobs within 24-48 hours, and a live person answers our phones around the clock. No voicemail loops, no callback windows measured in business days.

We also know the local building patterns. Cibolo’s slab-on-grade production homes, built almost uniformly after 2000 with 2×4 exterior walls, share the same skipped steps: no air sealing at top plates, no attention to interior partition walls, garage ceilings without proper air barriers. We’ve corrected these defects in enough Cibolo homes that we carry the right materials and know the access points before we arrive.

Under Haven Standard Clause 1, every job begins with a written price, a written scope, and a written warranty before anyone lifts a tool. We also offer a Free Second Opinion on any written estimate from another contractor. Bring us their quote; we’ll read it with you.

Our Spray Foam Insulation Services in Cibolo

Closed-Cell Spray Foam

Closed-cell spray foam, at roughly 2 pounds per cubic foot, delivers R-6 to R-7 per inch and forms its own vapor barrier. In Cibolo’s Climate Zone 2 conditions, where attic temperatures routinely exceed 150°F and humidity stays high, closed-cell works where moisture control and structural rigidity matter. We apply it to garage ceilings, rim joists, and roof decks in homes throughout The Crossvine and Turnberry, where builder-grade R-30 blown fiberglass has settled and degraded past its original performance. Closed-cell costs more than open-cell, but in Cibolo’s 150°F+ attics, the density and moisture resistance often justify the upgrade.

Open-Cell Spray Foam

Open-cell foam, lighter at roughly 0.5 pounds per cubic foot, provides R-3.5 to R-4 per inch and allows vapor to pass through. We use it in Cibolo attic floors and wall cavities where the assembly already manages moisture and the homeowner needs maximum R-value per dollar. Because Cibolo’s production homes were built with 2×4 walls limited to R-13 or R-15, open-cell at full cavity depth can improve performance without the cost of closed-cell. We never blow open-cell over an unsealed attic floor, though. Air sealing of top plates, can lights, and penetrations comes first.

Rim Joist Spray Foam

Rim joists, where the foundation meets the first floor, are the leakiest part of most slab-on-grade homes. In Cibolo’s production-built subdivisions, these joints were often left unsealed or covered with thin fiberglass that doesn’t block air movement. We spray closed-cell foam on rim joists to stop the stack effect that pulls hot, humid attic air down through walls in summer and lets heated air escape in winter. After Winter Storm Uri in 2021, we saw how poorly sealed Cibolo rim joists performed in extreme cold. The fix is straightforward and documented with photos.

Garage Ceiling Spray Foam

Garage ceiling spray foam is one of our most common Cibolo requests, and for specific local reasons. Cibolo’s production homes almost always have bedrooms or living space above the garage, and the garage ceiling was built with no air barrier, just R-30 fiberglass batts that sag and leave gaps. In summer, the attic above that garage hits 150°F, and the unconditioned garage space radiates heat upward into the room above. We remove the degraded fiberglass, seal any bypasses at top plates, and spray closed-cell foam directly to the garage ceiling deck. The room above finally holds temperature. We were called out to a DR Horton home in The Crossvine where the homeowner complained of a hot primary bedroom over the garage and a garage ceiling that radiated heat. Pulling back the builder-grade R-30 blown fiberglass, we found the predictable gap above the interior partition wall - no top-plate sealing - and a garage ceiling with zero air barrier. We sealed the bypasses and sprayed closed-cell foam on the garage ceiling and rim joists; the room now holds temperature with the HVAC cycling normally instead of running nonstop.

Spray Foam Roof Deck

Spray foam applied directly to the roof deck creates an unvented, conditioned attic. In Cibolo, where radiant heat gain from 150°F+ attic temperatures overwhelms HVAC systems in builder-minimum-insulated homes, this approach moves the thermal boundary to the roof line and protects ductwork that was originally placed in the hostile attic environment. We only recommend roof deck foam after blower-door testing confirms the envelope can handle the moisture loads of an unvented assembly.

Trusted Brands We Service in Cibolo

We source spray foam materials from Owens Corning, Johns Manville, Knauf, and other established manufacturers, with no proprietary product lock-in that limits your options. For Cibolo homeowners, this means we match the foam type to the application rather than forcing a one-product solution. Our crews carry stock for common Cibolo job profiles - closed-cell for garage ceilings and rim joists, open-cell for standard wall cavities - so we don’t delay your project waiting on material delivery. Every product we use comes with manufacturer documentation, and we add our own 365-Day Done Right Promise on top.

Common Spray Foam Insulation Problems We See in Cibolo Homes

• Builder-grade R-30 blown fiberglass has settled and degraded. In Cibolo’s 10-20 year old production homes, the original attic insulation has lost volume and R-value. Without air sealing at top plates and interior partition walls - a shortcut common in Cibolo’s production homes - conditioned air escapes into the attic, forcing spray foam to first fix the bypasses before adding R-value.
• 2×4 exterior walls limit cavity insulation to R-13/R-15. Spray foam must be applied at correct thickness to avoid thermal bridging at studs. Improper thickness or incomplete coverage leaves hot spots that still drive heat gain in Cibolo’s 100°F+ summers.
• Garage ceilings lack an air barrier. In slab-on-grade production homes throughout The Crossvine and similar subdivisions, spray foam applied over an unsealed or dirty substrate can fail to bond, leading to delamination and reduced performance in 150°F+ attic heat. We clean and prep every surface before spraying.
• Winter Storm Uri exposed air-sealing failures. Cibolo’s production homes, built for cooling-dominated Climate Zone 2, proved poorly sealed against extreme cold. Spray foam without prior air sealing won’t fix the bypasses that let freezing air infiltrate; we seal first, then insulate, in that order.

Pricing for Spray Foam Insulation in Cibolo, TX

We Also Serve Cities Near Cibolo

Our crews work throughout the corridor, including Spray Foam Insulation in Cibolo and surrounding areas: Schertz, Universal City, Converse, and New Braunfels. Dispatch and scheduling are coordinated from our San Antonio office, with local crews serving each market. If you’re in one of these neighboring cities and found this page, the same pricing structure and Haven Standard protections apply.

FAQs - Spray Foam Insulation in Cibolo