Fast, Reliable Spray Foam Insulation Across Brushy Creek
Spray foam insulation in Brushy Creek typically runs $1.80-$3.50 per board foot for open-cell and $3.20-$5.80 for closed-cell, with most whole-attic retrofits on 1990s production homes falling between $3,800 and $7,200. Our crews are dispatched from our Austin office and usually reach Brushy Creek properties within 35-50 minutes. We know these floor plans. The same builder shortcuts repeat block after block, and that repetition means we can quote your scope accurately on the first visit. Call (737) 259-7528 for a written price before any work starts.
Why Topside Attic Insulation Round Rock Is Brushy Creek’s Preferred Spray Foam Insulation Company
We’ve sealed and insulated over 9,000 homes since 2016, and a concentration of them sits right here in Brushy Creek’s 1985-2000 subdivisions. The pattern is unmistakable: vented slab-on-grade construction, R-19 batts settled to something closer to R-13, and top plates that were never sealed. Our Spray Foam Insulation team documents every job with before-and-after blower-door numbers so you can see the performance change in a single figure.
Brushy Creek customers receive the same Haven Standard we apply everywhere: written price before any work starts, background-checked uniformed technicians, and a live person answering calls 24/7. Dispatch and scheduling are coordinated from our Austin office, but crews serve Brushy Creek locally and carry materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. No proprietary lock-in. No waiting on special orders.
Our 365-Day Done Right Promise applies to every completed job. If it’s not done right, we make it right. That promise is backed by a written scope and written warranty delivered before anyone lifts a tool. We also offer a Free Second Opinion on any written estimate from another contractor. Bring us a competing quote and we’ll read it with you.
Our Spray Foam Insulation Services in Brushy Creek

Open-Cell Spray Foam
Open-cell spray foam is our most common specification for Brushy Creek attic planes. At roughly 3.5 inches, it delivers R-13 to R-14 and remains vapor-permeable, which matters in our vented attics where moisture needs a path out. The product expands aggressively, sealing the irregular gaps left by 1990s framing. On a typical Brushy Creek production home, open-cell runs $1.80-$3.20 per board foot installed. We pair it with mandatory air sealing of top plates and interior wall penetrations first. Never foam over an unsealed attic floor. That’s Haven Standard.

Closed-Cell Spray Foam
Closed-cell spray foam delivers R-6 to R-7 per inch and acts as its own vapor barrier. We specify it for Brushy Creek rim joists, garage ceilings, and any application where space is limited and maximum R-value per inch matters. At $3.20-$5.80 per board foot, it’s a higher investment, but in the 1.5-inch cavities common to these homes’ rim joists, it’s often the only way to hit code-minimum R-value without structural modification. Closed-cell also adds structural rigidity, which can matter in older garage ceiling applications where the drywall shows stress cracking.

Rim Joist Spray Foam
Rim joist spray foam is where we see the most overlooked thermal bridge in Brushy Creek homes. These slab-on-grade builds skipped rim joist insulation entirely, leaving the thermal bridge through wood framing that original R-13 wall batts were never going to solve. Winter air infiltration at the rim joist is a major contributor to the pipe-freeze pathways exposed during Uri. We treat this as standard scope on Brushy Creek jobs, not an upsell. Closed-cell at 2-3 inches is typical here, running $800-$1,400 for a full perimeter treatment on a 2,000-square-foot home.

Garage Ceiling Spray Foam
Garage ceiling spray foam in Brushy Creek addresses a specific problem: rooms above garages that run 8-12°F off the rest of the house. The original construction left these ceilings with minimal or no insulation, and the garage below is essentially an unconditioned buffer zone. We typically specify open-cell at 5-6 inches for R-19 to R-21, with mandatory air sealing of all penetrations. Expect $1,600-$2,800 for a standard two-car garage ceiling, depending on ductwork and electrical routing.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
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 Brushy Creek
We stock materials from Rockwool, CertainTeed, Icynene, and Demilec for Brushy Creek jobs, with no proprietary product lock-in. That means if your scope calls for a specific foam chemistry or density, we can match it without special-order delays. Our crews carry both open-cell and closed-cell formulations on standard Brushy Creek routes, so material availability never drives your schedule. Every product is specified to the application, not pushed from inventory.
Common Spray Foam Insulation Problems We See in Brushy Creek Homes

- Closed-cell sprayed directly over settled R-19 batts without removal. This traps moisture against the old fiberglass and masks the missing top-plate air seal. The foam performs on paper, but the assembly fails in practice. We remove degraded batts and air-seal first, every time.
- Foam applied to the attic plane while interior wall penetrations remain unsealed. The large vented attic cavities in these homes connect directly to wall chases. Without sealing those penetrations, winter air still reaches pipes. We map and seal every penetration before foam touches framing.
- Rim joists skipped entirely in the original build, never addressed in retrofit. The thermal bridge at the foundation perimeter is invisible until you measure it with an infrared camera. We include rim joist assessment on every Brushy Creek quote because the builder pattern is predictable.
- Original R-13 wall batts left in place with no plan for thermal bridging through wood framing. Even perfect batts only cover the cavity, not the studs. Dense-pack or injectable foam upgrades are available where wall cavity access exists, and we note the opportunity in every written scope.
Pricing for Spray Foam Insulation in Brushy Creek, TX
Most Brushy Creek spray foam jobs fall into these ranges based on 2024-2025 local material and labor costs:
| Application | Typical Range | Notes |
|---|---|---|
| Open-cell attic (1,500-2,500 sq ft home) | $3,800-$6,200 | Includes air sealing, removal of settled batts |
| Closed-cell rim joist (full perimeter) | $800-$1,400 | 2-3 inches, 2,000 sq ft footprint typical |
| Garage ceiling (2-car) | $1,600-$2,800 | Open-cell 5-6 inches, includes penetration sealing |
| Closed-cell selective (limited areas) | $3.20-$5.80/board ft | Rim joists, crawl spaces, metal building applications |
What moves the number: attic accessibility, extent of existing batt removal, electrical rerouting, and whether we find unsealed penetrations that expand the air-sealing scope. We quote the full scope in writing before work starts. No surprises, no mid-job additions. Estimates are free. Call (737) 259-7528.
We Also Serve Cities Near Brushy Creek

Our crews work Spray Foam Insulation in Brushy Creek and surrounding communities including Round Rock, Wells Branch, Pflugerville, and Hutto. The same builder patterns, same climate loads, same Haven Standard apply. If you’re near Brushy Creek and your home matches the 1985-2000 production build profile, we already know what we’ll find.
Serving Brushy Creek, TX - Our Local Coverage Area
We’re based in the Brushy Creek 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 Brushy Creek

No, and we won’t. The original batts are settled, often moisture-compromised, and hiding unsealed top plates. We remove them, air-seal the attic plane completely, then apply spray foam to clean framing. Call (737) 259-7528 for a written scope on your specific home.
Because the builder shortcut here was systematic and repeated. Hundreds of nearly identical floor plans were built with unsealed top plates and interior wall penetrations. Spray foam without sealing first would encapsulate those leaks, not eliminate them. We air-seal every Brushy Creek attic as a hard prerequisite, not an upsell.
Yes, when the full scope includes air sealing. The February 2021 storm exposed how conditioned air was escaping into wall cavities through unsealed attic penetrations. Foam alone doesn’t stop air movement; sealing does. Our post-Uri Brushy Creek retrofits pair open-cell attic foam with comprehensive penetration sealing to break that freeze pathway.
Open-cell is our standard specification for vented Brushy Creek attics. It costs less per R-value, expands to seal irregular framing, and remains vapor-permeable so moisture can escape. Closed-cell is reserved for space-constrained applications like rim joists or where vapor barrier function is required.
Wall upgrades are possible where cavity access exists, but they’re a separate scope from attic work. The thermal bridging through wood framing means even perfect batts underperform. We note wall-cavity opportunities in every written scope and can quote dense-pack or injectable foam where accessible. Most Brushy Creek homeowners address the attic and rim joists first for the fastest payback.
Written by Wes Okafor, Owner at Envelope Insulation Co., serving Brushy Creek since 2016 under The Haven Standard.