Evolution Insulation
Verified Pro
5.0
Insulation Services in Cambridge, MA
Compare 29 insulation services contractors near you in Cambridge and surrounding area with an average rating of 4.7/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
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Insulation Services in Cambridge, MA
Cambridge insulation paybacks come fast given MA cold winters and Eversource/National Grid rates. Most pre-1980 Cambridge homes have R-13 to R-30 attics. Air sealing matters more than insulation in older Cambridgeport and Riverside balloon-framed homes. Mass Save rebates up to $4,000+ for whole-home weatherization.
Cambridge attic top-up to R-49+: $2,200-$5,500. Wall dense-pack: $4,500-$11,000 retrofit. Basement spray-foam: $4-$7 per board foot. MA requires a state HIC license. Mass Save rebates. Blower-door test ($300-$500) often required.
Frequently Asked Questions
- Mass Save?
- Up to $4,000+ for whole-home weatherization. Pre-approval required.
- Worth on gas?
- Definitely — Cambridge heating loads heavy. Payback 3-6 years before rebates.
- Spray-foam or cellulose?
- Cellulose for attics. Spray-foam for basements and rim joists.
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