Fast, Reliable Spray Foam Insulation Across Converse
Spray foam insulation in Converse typically runs $1,800-$4,500 for attic applications and $3,200-$6,800 for full envelope jobs, with most projects completed in one to two days. Our crews serve Converse from our San Antonio office, and we carry both open-cell and closed-cell formulations on every truck so we’re not burning daylight on a material run.
We know the homes here. The 1993-2012 brick-veneer tracts off FM 78 and Kitty Hawk Road, the rental turnover near JBSA-Randolph, the attics that hit 140°F by mid-June. If you’re in Converse and your cooling bill keeps climbing while your comfort stays flat, the problem is usually air leakage combined with insulation that’s settled well below its original rating. We fix both, and we document the before-and-after so you can see the change in hard numbers. Call (830) 402-5240 for a written price before any work starts.
Why Topside Attic Insulation Schertz Is Converse’s Preferred Spray Foam Insulation Company
We’ve sealed and insulated over 9,000 homes since 2016, and a disproportionate share of our retroactive work comes from Converse’s 1990s-2000s builder-grade stock. These homes were insulated to minimum standards that no longer meet Texas energy code, and the high military-family rental turnover means many have never been upgraded. Our Spray Foam Insulation team treats that as baseline knowledge, not a discovery.
Our response time to Converse is same-day or next-day for most calls. We don’t do callback windows measured in business days; a live person answers the phone 24/7, and our technicians are background-checked and uniformed. You get a text when your tech is on the way, and you get their name before they arrive.
Reviews from Converse customers consistently mention the blower-door numbers we leave behind. One homeowner off Woodlake Parkway put it this way: “They showed me the house was leaking 3,800 CFM50 before and 1,900 after. That’s not a sales pitch, that’s data.” We don’t ask you to trust our feelings about your home. We hand you a documented record.
Our local knowledge runs specific. We know which Converse subdivisions used non-IC-rated recessed can lights as standard practice, which builders skipped top-plate sealing, and where the 2021 freeze left pipe-chase voids that still haven’t been addressed. That matters because spraying foam without fixing the air leaks first is just burying the problem.
Our Spray Foam Insulation Services in Converse
Closed-Cell Spray Foam
Closed-cell spray foam in Converse attics and rim joists typically runs $2.20-$3.10 per board foot installed. We use it where moisture resistance and structural rigidity matter: garage ceiling applications, rim joists against slab foundations, and any roof deck where shingle life is a concern. In Converse’s 140°F attics, closed-cell’s R-6.5 per inch and impermeable skin prevents the condensation issues that can plague open-cell in extreme temperature differentials. We source from Icynene and Demilec, and we never overspray onto the underside of a roof deck without first verifying your soffit-to-ridge ventilation path is preserved.
Open-Cell Spray Foam
Open-cell spray foam in Converse runs $1.40-$2.00 per board foot installed, and we use it primarily for attic floors and wall cavities in conditioned spaces where vapor permeability is acceptable. For the typical 1,600-square-foot Converse tract home with a low-clearance attic, open-cell on the attic floor lets us build R-value without the weight or cost of closed-cell. But we won’t blow it over unsealed top plates or non-IC-rated can lights. Our crews seal first, then insulate. That’s not an upsell; it’s the only way the foam performs as rated.
Rim Joist Spray Foam
Rim joist spray foam in Converse is one of our most common retroactive jobs, especially in the 1993-2012 slab-on-grade homes that dominate the city. The rim joist, where your foundation wall meets your first floor, is often completely unsealed in this era of construction. We spray 2-3 inches of closed-cell foam to create an air and moisture barrier, and we always pair it with attic air sealing because a tight rim joist with a leaky attic just pressurizes your leaks upward. Typical rim joist jobs in Converse run $1,200-$2,400.
Garage Ceiling Spray Foam
Garage ceiling spray foam in Converse matters because so many homes here have bonus rooms or bedrooms over attached garages that were never thermally isolated. The builder’s R-19 batts, if they exist at all, have usually fallen or been disturbed by wiring and storage. We spray closed-cell foam to create a true thermal and air barrier, and we document the work with photos because garage ceiling jobs are impossible to inspect after the drywall goes back. Most Converse garage ceiling jobs run $1,800-$3,200 depending on square footage and whether we need to relocate stored items first.
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 Converse
We stock and install spray foam systems from Icynene, Demilec, and Owens Corning, with no proprietary lock-in that limits your options. Our Converse trucks carry both open-cell and closed-cell formulations daily, so we’re not scheduling around a material delivery. If your home has existing foam from another manufacturer, we can evaluate its condition and compatibility before recommending additional work. Every batch we spray is documented with manufacturer, lot number, and install date in your job record.
Common Spray Foam Insulation Problems We See in Converse Homes
- Spraying over non-IC-rated recessed can lights without sealing first. Homes along FM 78 and Kitty Hawk Road were built with standard recessed cans poking into unconditioned attics. These fixtures create thermal chimneys that blower-door tests consistently flag as the single largest air-leakage point. We install foam-backed covers before any spray work begins.
- Overspraying open-cell onto roof decks and blocking ventilation. Converse’s tight, low-clearance attics tempt some contractors to spray the roof deck for extra space, but without maintaining the soffit-to-ridge airflow path, you’re baking shingles from below and voiding manufacturer warranties.
- Missing settled blown fiberglass in the center of the attic field. The 1993-2012 tract batch in Converse used blown fiberglass that settles below R-19 over twenty years. Contractors who top off the outer bays and leave the center untouched are treating the symptom, not the disease.
- Ignoring Uri 2021 freeze damage in pipe chases and exterior walls. The February 2021 freeze exposed insulation voids across this era of construction. We find them with thermal imaging and seal them with closed-cell foam before they become moisture or mold issues.
Pricing for Spray Foam Insulation in Converse, TX
Most spray foam insulation jobs in Converse fall into these ranges:
| Application | Typical Range |
|---|---|
| Open-cell attic floor (1,600 sq ft home) | $1,800-$2,800 |
| Closed-cell attic floor (1,600 sq ft home) | $2,800-$4,500 |
| Closed-cell rim joist (typical slab home) | $1,200-$2,400 |
| Garage ceiling (single-bay, standard depth) | $1,800-$3,200 |
| Full envelope (attic + rim joist + selective walls) | $3,200-$6,800 |
What moves you within these ranges: attic clearance (tight spaces take longer), existing insulation removal, can-light sealing count, and whether we need to address Uri 2021 damage in pipe chases. We give you a written price before any work starts, always, and we offer a Free Second Opinion on any competing written estimate. Call (830) 402-5240 for an exact quote - estimates are free.
We Also Serve Cities Near Converse
Our crews work daily in Converse and the surrounding northeast San Antonio metro, including Universal City, Schertz, Cibolo, and San Antonio proper. Dispatch and scheduling are coordinated from our San Antonio office, but the trucks that roll to your door are stocked for local conditions and local building stock.
Serving Converse, TX - Our Local Coverage Area
We’re based in the Converse 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 Converse
No, and any contractor who says otherwise is creating a fire hazard. We install foam-backed, fire-rated can covers over every non-IC-rated fixture before spraying, then verify with a post-work visual inspection. The cans on Kitty Hawk Road homes were installed as thermal chimneys into 140°F attics; sealing them is always step one. Call (830) 402-5240 and we’ll show you exactly what that looks like in your written scope.
For rental properties with deferred maintenance, we usually recommend open-cell on the attic floor paired with comprehensive air sealing, because it addresses the dominant problem at lower cost. Closed-cell is worth the premium if you’re holding long-term or if the rim joists are unsealed and you’re seeing moisture. We’ll inspect and give you both options in writing. Call (830) 402-5240 for a free estimate.
Yes. The Uri 2021 freeze revealed insulation voids in pipe chases, exterior wall cavities, and rim joists across Converse’s 1993-2012 building stock, many of which remain unaddressed. We locate these with thermal imaging and seal them with closed-cell foam, which also prevents future freeze damage by blocking air infiltration. The fix is documented with before-and-after photos and blower-door readings.
We use low-clearance spray rigs and specialized nozzles for attics under 4 feet of headroom, which is common in Converse’s smaller tract plans. Open-cell on the attic floor builds R-value without the weight or thickness of batts, and we remove settled fiberglass first rather than burying it. The work takes longer in tight spaces, but the performance gain is the same - and we document every square foot with photos.
Budget $2,500-$4,500 for a standard attic floor and air-sealing package on a 1,400-1,800 square foot Converse tract home, and add $1,200-$2,400 if the rim joists need closed-cell. We see a lot of Randolph families buying here; the good news is that documented energy upgrades can transfer with the sale, and our 365-Day Done Right Promise stays with the work. We’ll inspect before you close and give you a written price you can take to closing. Call (830) 402-5240.
Written by Wes Okafor, Owner at Topside Attic Insulation Schertz, serving Converse since 2016.