Spray Foam Insulation cost: Houston vs San Antonio (2026)
In 2026, spray foam insulation is about 1% more expensive in Houston than in San Antonio. Most homeowners pay around $3,700 in Houston versus $3,650 in San Antonio — a gap of roughly $50.
Houston TX
Typically around $3,700
San Antonio TX
Lower costTypically around $3,650
Houston vs San Antonio: full breakdown
| Factor | Houston | San Antonio |
|---|---|---|
| Typical 2026 cost | $3,700 | $3,650 |
| Estimated range | $1,450–$5,900 | $1,450–$5,850 |
| Labor index (vs US) | ×0.96 | ×0.95 |
| Climate zone | Hot | Hot |
| Climate factor | ×1.02 | ×1.02 |
| Local permit | None | None |
| Labor share | $2,050 | $2,000 |
| Materials/equipment | $1,650 | $1,650 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
Houston vs San Antonio
Is spray foam insulation cheaper in Houston or San Antonio?
In 2026, spray foam insulation is cheaper in San Antonio at about $3,650, versus $3,700 in Houston — a difference of about $50 (1%).
Why does spray foam insulation cost more in Houston than San Antonio?
The main driver is local labor rates: Houston's labor index is 0.96 versus 0.95 in San Antonio. Climate zone (hot vs hot) also shift the total.
How much is spray foam insulation in Houston, TX?
In Houston, spray foam insulation typically runs $1,450–$5,900 in 2026, with most homeowners paying around $3,700.
Updated June 2026 · By Costadia Editorial