Fast, Reliable Spray Foam Insulation Across Cibolo
Spray foam insulation in Cibolo typically runs $1,800-$4,500 for attic applications and $3,200-$7,800 for full roof-deck treatments, with most jobs completed in one day. Our crews serve Cibolo from our San Antonio office, and we carry both open-cell and closed-cell stock so we’re not waiting on material delivery when your attic is already open. Call (830) 243-6352 for a written price before any work starts - that’s Haven Standard Clause 1, no exceptions.
We’ve sealed and insulated more than 9,000 homes since 2016, and Cibolo’s pattern is unmistakable: nearly every house was built between 2000 and 2020 with the same builder-grade R-30 blown fiberglass, now compacted and bypassed after 15-20 years of attic heat that tops 150°F. If you live in Bentwood Ranch, Cibolo Crossing, or any of the corridor subdivisions off FM 1103, your insulation timeline matches your neighbors’ exactly.
Why Topside Attic Insulation New Braunfels Is Cibolo’s Preferred Spray Foam Insulation Company
Our Spray Foam Insulation team knows Cibolo’s construction era cold. The subdivisions here didn’t exist in 1999, and the build speed meant minimum-code insulation installed fast, sealed never. We don’t guess at what’s in your attic - we measure depth, run a blower-door test if the job warrants it, and show you the pressurization number that proves how much conditioned air you’re losing.
Homeowners in Cibolo choose us because we publish before-and-after blower-door readings on every applicable job. You get the documentation: photos, readings, written scope, written warranty. The 365-Day Done Right Promise applies to all work, and a live person answers calls 24/7 - no voicemail loops, no callback windows measured in business days. Background-checked, uniformed technicians. Text notifications when your crew is en route.
We offer a Free Second Opinion on any written estimate. Bring us a competing quote; we’ll read it with you line by line. Our pricing is flat and written before anyone lifts a tool - not “call for a quote,” not a range that widens once we’re in your attic.
Our Spray Foam Insulation Services in Cibolo
Open-Cell Spray Foam
Open-cell spray foam in Cibolo attics runs $1.80-$2.40 per board foot installed, with typical flat-ceiling treatments on a 2,400-square-foot home landing between $2,800 and $4,200. We use it on attic floors and roof decks where vapor permeability helps the assembly dry, and where the 150°F summer heat demands an air barrier that settled fiberglass simply cannot provide. In Cibolo’s two-story tract layouts, open-cell at the roof deck converts the attic to conditioned space - eliminating the thermal bypass that drives CPS Energy bills through July and August.
Closed-Cell Spray Foam
Closed-cell spray foam costs $2.80-$3.80 per board foot in the Cibolo market, and we specify it where moisture exposure, structural rigidity, or freeze protection matter. Garage ceilings under primary suites, rim joists at slab perimeter, and any cavity where February 2021 proved sub-10°F air can reach plumbing. Closed-cell’s R-6.5 per inch and vapor-blocking properties make it the right choice for Cibolo’s Uri-exposed construction - the same homes that never had to withstand hard freezes when they were built in 2005.
Rim Joist Spray Foam
Rim joist treatment in Cibolo runs $800-$1,600 for a typical slab-on-grade home, and it’s the most overlooked air-sealing opportunity in this city’s entire housing stock. Builders left these perimeter bands unsealed. Cold air pours in during winter, hot humid air in summer, and the mechanical room pressure dynamics push attic bypass into every conditioned space above. We spray closed-cell here, every time, before any attic work begins. Sealed first, then insulated - in that order.
Garage Ceiling Spray Foam
Garage ceiling spray foam in Cibolo ranges $1,200-$2,400 depending on whether the space includes ductwork, plumbing chases, or a primary-suite floor above. These ceilings were typically left uninsulated at build, or received a token R-13 batt that has since fallen or been shredded by rodents. We see frozen pipe calls from garage-adjacent bathrooms every winter. Closed-cell here solves both the summer heat gain and the winter freeze risk.
Spray Foam Roof Deck
Full roof-deck spray foam in Cibolo runs $3,200-$7,800 and converts your attic from a ventilated, unconditioned oven into a sealed, conditioned buffer zone. This is the definitive fix for homes where the HVAC equipment lives in the attic - common in Cibolo’s two-story plans - and where duct leakage into 150°F air wastes 20-30% of cooling output before it ever reaches a register.
What happens when you call
- 1
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.
Before
AfterTrusted Brands We Service in Cibolo
We source spray foam materials from Owens Corning, Johns Manville, and Knauf - no proprietary lock-in, no single-source product we have to sell because of a distributor agreement. For Cibolo homeowners, this means we match the foam chemistry to the application: open-cell from Icynene or Demilec for attic conversions, closed-cell from the same lines for rim joists and garage ceilings. Stock sits at our San Antonio warehouse, so material lead time doesn’t delay your job. Every batch ships with manufacturer data sheets, and we keep SDS documentation on file for every property we treat.
Common Spray Foam Insulation Problems We See in Cibolo Homes
- Builder-grade R-30 blown fiberglass compacted to effective R-19 or less. In Cibolo’s mid-2000s subdivisions, the original insulation has settled and degraded under two decades of attic heat. Homeowners assume their “new-ish” home still performs at rated R-value. A simple depth check - we carry a ruler on every scoping visit - routinely reveals a 30-40% deficit.
- Thermal bypass at top plates, knee walls, and recessed can lights. Cibolo’s two-story tract layouts create multiple pressure boundaries where 150°F attic air pours into conditioned space. The blower-door test quantifies this in a single number: CFM50. We’ve seen pre-sealing readings above 4,000 in homes where the owner thought the attic was “fine.”
- Unsealed rim joists and garage ceilings exposing pipes to freeze risk. February 2021 proved Cibolo’s slab-on-grade construction never accounted for sub-10°F air. The same homes that sweated through August now freeze in January. Spray foam at these boundaries is structural air sealing, not just insulation.
- Homeowners adding more fiberglass over failed fiberglass. Topping off compacted blown fiberglass with more of the same doesn’t stop air movement. In Cibolo’s uniform housing stock, we see this mistake repeated block after block - the neighbor’s “solution” becomes your cautionary tale.
Pricing for Spray Foam Insulation in Cibolo, TX
| Application | Typical Range | Notes |
|---|---|---|
| Open-cell attic floor (flat ceiling) | $1,800-$3,200 | Per 2,400 sq ft home; assumes accessible attic |
| Open-cell roof deck (attic conversion) | $3,200-$5,800 | Includes vent sealing, baffle modification |
| Closed-cell garage ceiling | $1,200-$2,400 | Varies with plumbing/HVAC penetration count |
| Closed-cell rim joist (full perimeter) | $800-$1,600 | Slab-on-grade homes; includes prep and cleanup |
| Closed-cell roof deck (hybrid with open-cell) | $4,500-$7,800 | High-complexity assemblies, multiple foam types |
What moves the number: attic accessibility, existing insulation removal requirements, roof-deck geometry (complex trusses add labor), and whether we find active leaks or rodent damage that must be remediated before foam goes in. We scope every job in person, provide a written price before any work starts, and include a Documented Photo Record with every visit. Call (830) 243-6352 - estimates are free, and we offer a Free Second Opinion on any written estimate you’ve already received.
We Also Serve Cities Near Cibolo
Our crews work Spray Foam Insulation in Cibolo and surrounding communities weekly: Schertz to the west, Universal City and Converse along the I-35 corridor, and New Braunfels to the northeast. The same post-2000 tract construction patterns, the same builder-grade insulation failures, the same 150°F attic summers and Uri-exposed freeze risk. Dispatch and scheduling run from our San Antonio office; your crew arrives with local knowledge of Guadalupe Valley building practices and CPS Energy billing patterns.
Serving Cibolo, TX - Our Local Coverage Area
We’re based in the Cibolo 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 Cibolo
Measure the depth with a ruler or yardstick pushed to the drywall below. In Cibolo’s 2000s-2010s subdivisions, builder-grade blown fiberglass was installed at roughly 10-12 inches for R-30; if you measure 6-8 inches now, it’s compacted to effective R-19 or less. We carry a depth gauge on every scoping visit and photograph the measurement for your record. Call (830) 243-6352 for a free attic check - estimates are free, and we provide a written price before any work starts.
Adding fiberglass over compacted fiberglass doesn’t stop air movement - it just adds more filter material for 150°F attic air to push through. Spray foam creates an air barrier at the boundary you’re actually trying to seal: the attic floor or roof deck. In Cibolo’s two-story layouts, thermal bypass at top plates and recessed cans is the dominant load, not R-value deficiency alone. Foam seals the bypass; fiberglass cannot. We publish before-and-after blower-door numbers so you can verify the difference.
It means you should assess freeze-side risk that wasn’t designed for at build. Uri exposed how unsealed rim joists, garage ceilings, and attic bypass paths allow sub-10°F air to reach pipes and HVAC equipment. For Cibolo homes, we often recommend closed-cell at rim joists and garage ceilings regardless of what’s used at the roof deck - the higher R-value per inch and vapor-blocking properties protect against the freeze recurrence that minimum-code construction never anticipated. Your written scope will specify where each foam type goes and why.
Probably close, but not identically. Bentwood Ranch, Cibolo Crossing, and similar subdivisions share the same original insulation specs and aging timeline, but modifications vary: some homeowners added radiant barrier, some had roof leaks, some converted attic space, some have active rodent issues. We scope every home individually, measure actual depth, and run a blower-door test on applicable jobs. The baseline pattern is uniform; your specific scope reflects what’s actually in your attic today.
Open-cell for most roof-deck and flat-ceiling attic applications in Cibolo: it’s cost-effective, provides excellent air sealing at R-3.6 per inch, and allows assembly drying. We specify closed-cell where moisture exposure, structural rigidity, or freeze protection dominate - rim joists, garage ceilings, and any cavity with plumbing exposure. Hybrid scopes are common here: open-cell at the roof deck, closed-cell at the garage ceiling and rim joists. Your written scope will specify the chemistry by location with manufacturer data sheets included.
Written by Wes Okafor, Owner at Topside Attic Insulation New Braunfels, serving Cibolo since 2016.