Spray foam insulation in Houston TX typically costs $1,973–$2,462 for an average single-family home, based on national USA Insulation franchise data and local SE Houston project ranges. Open-cell spray foam runs about $0.45–$0.65 per board foot; closed-cell runs $1.00–$1.50 per board foot. Final price depends on attic vs wall scope, square footage, accessibility, and foam type. Every USA Insulation of SE Houston project includes a free on-site inspection: call 409-316-9957 for an exact quote.
Spray Foam Insulation Cost in Houston, TX. 2026 Pricing Guide
By USA Insulation of SE Houston · May 1, 2026 · 9 min read
Fact-Checked & Reviewed
Building science & R-value specs verified against IECC Climate Zone 2A standards
Open-Cell Spray Foam Cost in Houston TX
Open-cell spray polyurethane foam is the more affordable option for Houston attics and interior applications. Expect $0.45–$0.65 per board foot installed in the Houston market.
A typical 1,500 sq ft attic at 5–6 inches of open-cell depth might land in the $1,500–$2,200 range before add-ons. Open-cell delivers R-3.5 to R-4 per inch and excellent air sealing, but it does not provide a full vapor barrier, which matters in Houston's 90%+ summer humidity.
Closed-Cell Spray Foam Cost in Houston TX
Closed-cell spray foam costs $1.00–$1.50 per board foot in Greater Houston, roughly double open-cell, with significantly higher performance.
- R-6 to R-7 per inch: highest R-value per inch available
- Built-in vapor barrier: critical for Gulf Coast humidity
- Structural rigidity: adds strength to roof decks and rim joists
Whole-home closed-cell projects for Houston homes often reach $3,500–$6,000+ depending on scope. Homeowners who need air sealing and a vapor barrier on the attic plane often pick closed-cell for attics and rim joists.
Cost by Application (Attic vs Walls vs Crawl Space)
| Application | Typical Houston Cost Range | Best Foam Type |
|---|---|---|
| Attic (open cavity) | $1,500–$3,500 | Open or closed-cell |
| Rim joists / crawl | $800–$2,000 | Closed-cell recommended |
| Whole-home spray foam | $3,500–$8,000+ | Closed-cell |
What Affects Spray Foam Cost in Houston?
- Square footage: larger attics and multi-level homes cost more
- Foam type: closed-cell costs more per board foot but performs better in humidity
- Depth / R-value target: thicker lifts increase material and labor
- Accessibility: tight crawl spaces, vaulted ceilings, and commercial structures add complexity
- Prep work: removal of old insulation, air sealing, or repairs before spray
- Seasonal demand: Houston's peak cooling season (May–September) sees higher scheduling volume
Get a Free Insulation Inspection
Most Houston jobs scheduled within the week.
Or call: 409-316-9957
Is Spray Foam Worth It in Houston?
For most Houston homeowners paying $180–$250/month in summer cooling, spray foam that cuts bills 40–50% saves roughly $75–$125/month during peak season.
Simple ROI Example
$200/month average electric bill × 45% savings = $90/month saved
$2,200 spray foam install ÷ $90/month = ~24-month payback
Actual savings vary by home size, AC efficiency, and install scope. Free inspection provides a personalized estimate.
Free Attic with Whole-Home Insulation
USA Insulation franchise locations periodically offer promotions including free attic insulation with whole-home insulation packages. Check current offers at the national Houston franchise page:
How to Get an Accurate Quote in Houston
- Schedule a free on-site inspection: we measure attic depth, check wall cavities, and identify air leaks
- Choose foam type based on your goals (budget vs maximum performance vs moisture control)
- Receive a written quote with scope, R-value targets, and timeline, no obligation
- Most residential jobs complete in one day with same-week scheduling available
Frequently Asked Questions
How much does spray foam cost in Houston TX?
Spray foam in Houston TX typically costs $1,973–$2,462 for an average home. Open-cell runs $0.45–$0.65/board ft; closed-cell runs $1.00–$1.50/board ft. Call 409-316-9957 for a free exact quote.
Is open-cell or closed-cell spray foam cheaper in Houston?
Open-cell is cheaper per board foot ($0.45–$0.65). Closed-cell costs more ($1.00–$1.50/board ft) but performs better in Houston humidity with a built-in vapor barrier.
How long does spray foam installation take?
Most Houston residential spray foam jobs complete in one day. Larger commercial projects may take 2–3 days.
Does spray foam qualify for tax credits in Texas?
Federal energy efficiency tax credits may apply to qualifying insulation upgrades. Ask your installer about current IRS guidelines and keep your itemized invoice.
Do you offer free estimates in SE Houston?
Yes. USA Insulation of SE Houston provides free on-site inspections and written quotes throughout Greater Houston. Call 409-316-9957.
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