Fast, Reliable Spray Foam Insulation Across Schertz
Spray foam insulation in Schertz typically runs $2.80-$5.50 per board foot depending on open-cell or closed-cell product, and most attic retrofits in a standard 1,800-square-foot tract home fall between $3,200 and $6,800. Our crews dispatch from the San Antonio office and can usually reach Schertz properties within 45 minutes, including the Savannah subdivision and Schertz Parkway corridors. Call (830) 243-6352 for a written price before any work starts - that’s Haven Standard Clause 1, no exceptions.
We’ve been sealing and insulating homes under The Haven Standard since 2016, and Schertz represents one of the most concentrated retrofit markets we serve. The reason is straightforward: this city’s housing stock is essentially one generation of 1990s-2010s slab-on-grade tract homes built by volume builders like DR Horton and KB Home, delivered with minimum-code blown fiberglass that has settled well below its original R-value. If your home is one of these, the gap between what your attic was supposed to do and what it’s actually doing is measurable, and we publish that measurement.
Why Topside Attic Insulation New Braunfels Is Schertz’s Preferred Spray Foam Insulation Company
Our reputation in Schertz was built on documented results, not slogans. We’ve completed spray foam retrofits in the Savannah master-planned community, along the Schertz Parkway corridor, and in the Universal City Road and FM 1518 neighborhoods near JBSA-Randolph. Schertz homeowners who research thoroughly - the three-star reviews as carefully as the five-star ones - find our blower-door numbers, photo records, and written scopes before work begins.
Response time matters here. Attic temperatures in Schertz routinely exceed 150°F in summer, and a crew that takes two days to show up means two more days of your air conditioner fighting radiant heat gain through an under-insulated envelope. We answer calls with a live person 24/7, and our crews carry Spray Foam Insulation materials from Owens Corning, Johns Manville, and Knauf so we’re not waiting on a parts run.
Wes Okafor leads this operation, and the Haven Standard applies to every Schertz job: written price, written scope, written warranty, documented photo record, and before-and-after blower-door readings on every applicable project. No work starts without the paperwork in place.
Our Spray Foam Insulation Services in Schertz
Open-Cell Spray Foam
Open-cell spray foam is our most common recommendation for Schertz’s vented attics. It expands to roughly 100 times its liquid volume, filling irregular joist bays and sealing around penetrations in a way blown fiberglass never will. At roughly 3.5 inches, it delivers an R-value of about R-13 and acts as an air barrier - the critical difference. In a 2003 DR Horton home off Schertz Parkway, we found original blown fiberglass sitting at an effective R-15 in an attic labeled R-30. We air-sealed the top plates and recessed cans, then applied open-cell spray foam to the attic floor and rim joists. The homeowner reported an immediate drop in afternoon AC run time. Most open-cell attic jobs in Schertz run $3,200-$5,400.
Closed-Cell Spray Foam
Closed-cell spray foam is denser, R-6.5 per inch, and provides a Class II vapor retarder. We specify it for Schertz garage ceiling applications, crawl space encapsulation, and any location where moisture management or structural rigidity matters. It’s roughly 30% more expensive than open-cell - typically $4.50-$5.50 per board foot in this market - but necessary when you’re insulating a roof deck or enclosing a space that needs to handle humidity directly. Closed-cell also adds shear strength to wall cavities, which matters in the garage conversions we’re seeing more of in Schertz’s older Savannah phases.
Rim Joist Spray Foam
The rim joist - where your foundation wall meets your first floor - is the single most common air-leakage site we find in Schertz’s slab-on-grade homes. Pre-2010 construction here predates the IRC energy-code cycles that mandated sealed rim assemblies, and Winter Storm Uri exposed how many Schertz homes had uninsulated rim cavities that allowed pipe freeze in exterior walls. We spray closed-cell foam to seal and insulate this junction, typically 2-3 inches for R-13 to R-19 plus full air sealing. Rim joist work in Schertz averages $1,800-$3,200 depending on linear footage and accessibility.
Garage Ceiling Spray Foam
Garage ceiling insulation is underspecified in almost every Schertz tract home we’ve inspected. The builder ran the duct chase through the garage attic, slapped R-19 batts against the ceiling drywall, and called it done. Those batts sag within five years, and your conditioned air runs through a 140°F attic space before reaching your living room. We remove the failed batts, air-seal the chase and any penetrations, then spray open-cell foam to R-13 or closed-cell to R-19 depending on whether the garage is conditioned. Garage ceiling jobs in Schertz typically run $2,400-$4,200.
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 Schertz
We source spray foam materials from Owens Corning, Johns Manville, and Knauf - no proprietary lock-in, no single-source dependency. If a Schertz homeowner has a preference based on prior research or a builder’s spec, we can match it. Our San Antonio warehouse stocks both open-cell and closed-cell kits for common application volumes, so most Schertz jobs don’t wait on material delivery. For specialized applications - high-density closed-cell for roof decks, or hybrid systems combining spray foam with GreenFiber cellulose - we order to spec and confirm lead time in the written scope before anyone lifts a tool.
Common Spray Foam Insulation Problems We See in Schertz Homes
- Settled blown fiberglass below labeled R-value. The original R-30 blown fiberglass in Schertz’s 1990s-2010s tract homes has compressed to an effective R-12 to R-15 in most attics we’ve tested. The blower-door number tells the story: 4,200 CFM50 before air sealing is typical, and that leakage path runs right through the settled insulation.
- Leaky attic access panels and recessed can lights. Builder-grade attic hatches in DR Horton and KB Home construction were never gasketed, and IC-rated can lights still leak around the housing. New insulation over unsealed penetrations just hides the problem. We seal first, then insulate - in that order.
- Unsealed rim joists in pre-2010 homes. Schertz’s slab-on-grade construction leaves a continuous concrete perimeter with an uninsulated wood band at the top. Before the 2012 IRC cycle, this assembly was rarely sealed. The result: outdoor air pulls directly into wall cavities, and in January 2021, that meant frozen pipes.
- Garage ceiling duct chases acting as thermal bypasses. The flex duct running through your garage attic is surrounded by 150°F air and R-19 batts that have fallen to the ceiling. Your AC works harder, your energy bills climb, and the comfort difference between rooms becomes obvious by July.
Pricing for Spray Foam Insulation in Schertz, TX
| Application | Typical Range in Schertz | Notes |
|---|---|---|
| Open-cell attic (1,800 sq ft home) | $3,200 - $5,400 | Includes air sealing of top plates, cans, access panel |
| Closed-cell garage ceiling | $2,400 - $4,200 | Removes failed batts, seals chase, sprays to R-19 |
| Rim joist (per linear foot) | $12 - $18 | Closed-cell, 2-3 inches, typical home 150-200 LF |
| Closed-cell roof deck | $4.50 - $5.50 / board foot | Vented or unvented assembly per IRC requirements |
| Full attic encapsulation (open-cell) | $5,800 - $8,200 | Roof deck + gable ends, conditioned attic assembly |
What moves the number: attic square footage, existing insulation removal requirements, accessibility (steep pitches or limited hatch openings add labor), and whether we’re air-sealing only or full foam application. Every Schertz job gets a written price before work starts - Haven Standard Clause 1 - with no change orders unless you change the scope. We also offer a Free Second Opinion on any written estimate from another contractor; bring us their scope and we’ll read it with you.
Call (830) 243-6352 for an exact quote. Estimates are free, and the written price you receive is the price you pay.
We Also Serve Cities Near Schertz
Our crews work daily 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 live-answer dispatch, same written-price standard, same documented photo record on every visit. If you’re in the Schertz Parkway or Savannah area, we’re typically on-site within the hour.
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
Yes, and the blower-door test will show you exactly why. In Schertz’s 1990s-2010s tract homes, the original blown fiberglass has settled to an effective R-12 to R-15 regardless of the R-30 label on the builder’s spec sheet. Spray foam air-seals and insulates in one application, and the before-and-after blower-door numbers we publish let you verify the performance change. Most Schertz homeowners see reduced AC run time within the first billing cycle. Call (830) 243-6352 for a free estimate and we’ll show you your current leakage number.
Yes, because the payback period in Schertz’s climate is shorter than your PCS cycle. A typical open-cell attic retrofit here cuts cooling load by 20-35% in a 150°F attic, and with local electric rates, most homeowners recover the investment in 3-5 years. If you’re in the Universal City Road or FM 1518 corridors where the original 1998-vintage insulation has never been touched, the improvement is immediate and measurable. You’ll also have documented energy upgrades to list at resale. Call (830) 243-6352 - we can run the numbers against your actual usage.
Open-cell for vented attics, closed-cell for roof decks or conditioned assemblies. Schertz’s prolonged 100°F+ summers and 150°F+ attic temperatures make air sealing the priority, and open-cell at 5.5 inches (R-19) provides that barrier at lower cost than closed-cell. Closed-cell is necessary when you’re converting to a conditioned, unvented attic or insulating a garage ceiling where moisture and structure matter. We’ll specify the right product in your written scope after inspecting the assembly. Call (830) 243-6352 to schedule.
Because pipe freeze in exterior walls exposed insulation gaps that had been invisible for decades. Schertz’s pre-2010 homes were built before stricter IRC cycles required sealed rim joists and wall-cavity air barriers, and the February 2021 freeze pushed 0°F air through those leaks. Homeowners who’d never thought about insulation suddenly had burst pipes and water damage. The fix is sealing the rim joist and any wall penetrations with closed-cell foam - not just adding more fiberglass that doesn’t stop air movement. Call (830) 243-6352 and we’ll inspect your rim assembly.
Yes, including Savannah and the Parkway corridors - these are among our most frequent destinations. The housing stock there is exactly the generation we specialize in: 2000s-2010s slab-on-grade tract homes with vented attics, low- to mid-pitch roofs, and builder-grade insulation that has aged past its effective life. We’ve completed dozens of blower-door tests and spray foam retrofits in these subdivisions, and the patterns are consistent enough that we can often estimate your likely leakage range before we arrive. Call (830) 243-6352 to book an inspection.
Written by Wes Okafor, Owner at Topside Attic Insulation New Braunfels, serving Schertz since 2016 under The Haven Standard.