How much does spray foam insulation cost per square foot?

Spray foam insulation is priced after an on-site assessment. The per‑square‑foot cost depends on foam type (open‑cell vs. closed‑cell), required thickness, area size, access conditions, and any prep or air‑sealing work. You’ll get upfront pricing before work starts.

Quick prep for a quote:

• Identify areas to insulate (attic, walls, crawlspace).
• Note access issues and existing insulation.
• Share target R‑values and moisture concerns.

Updated: 2025-12-24 00:00:00

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