How much does spray foam insulation cost per square foot?

There isn’t a one-size price per square foot for spray foam. We price it after a no-cost Mass Save Home Energy Assessment because cost varies by foam type (open vs. closed cell), required R-value thickness, access/prep needs, and air sealing scope. Many Massachusetts customers qualify for Mass Save insulation rebates that cover 75–100% of eligible insulation costs. Our in-house, certified crews confirm final pricing on site in areas like Framingham and Boston.

• Schedule the no-cost assessment.
• Review your written scope and rebate estimate.
• Get the confirmed on-site price before work begins.

Updated: 2025-12-22 00:00:00

Need help in Weston, MA? Call (508) 501-9990 or book online.

"My home is now substantially more comfortable and we've already seen a reduction in our heating bill." — Alex I.