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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Boston Greens Spray Foam Insulation

Boston Spray Foam Insulation

TSN Attic Insulation & Roofing Services Inc Of MA,

Diamond Dorchester Insulation Inc.

5.04+ years online
dorchesterinsulation.com

Hi-Tech Attic Insulation & Roofing Services Of MA

5.0

JR CONSTRUCTION AND SPRAY FOAM CO

5.01+ year online
jrconstructionandsprayfoam.com

Massachusetts Spray Foam Insulation

5.06½+ years online
masprayfoaminsulation.com/cambridge-ma-spray-foam-insulation.html

Mobile Attic Insulation & Roofing Services Waltham, MA

5.0

Newton Spray Foam Insulation

5.01½+ years online
newtonsprayfoaminsulation.com

Premium Insulation Svcs, Inc.

5.0~7 years online
premiuminsul.com

Boston Admirals Insulation

4.94½+ years online
insulationboston.net

Green Insulation Brookline Inc.

4.94+ years online
brooklinemainsulation.com

Patriot Spray Foam Insulation

4.97+ years online
patriotsprayfoaminsulation.com

Quality Spray Foam Insulation Boston

4.95½+ years online
sprayinsulationboston.com

Caliber Insulation

4.81½+ years online
insulationbostonma.com

Dolphin Insulation, Inc.

4.816½+ years online
dolphin-insulation.com

Local Boston masonry and construction

4.8

Suffolk Weatherization LLC.

4.8~5 years online
suffolkwx.com

WS Insulation Inc

4.8~6 years online
wsdesigneifs.com/spray-foam-insulation

Green Stamp Insulation

4.716½+ years online
greenstampco.com

HomeWorks Energy

4.7~18 years online
homeworksenergy.com

CSE Attic Insulation & Roofing Services Co, MA

4.6

Spray Foam Distributors Of Boston - SPI

4.64½+ years online
sprayfoamofboston.com

ZND-FRT Attic Insulation & Roofing Services Inc, MA

4.26+ years online
watertownlicensedelectrical.comGet a Free Quote

BNY Attic Insulation & Roofing Services Inc, MA

1.0

Insulation Services in Nearby MA Cities

About Insulation Services in Cambridge

Insulation services cover attic, wall, floor, and crawl space insulation using materials like fiberglass batts, blown-in cellulose, spray foam, and rigid board. Proper insulation reduces heating and cooling costs and improves comfort year-round.

Typical costs: Attic insulation runs $1,500–$4,000 for a typical home. Spray foam for a crawl space or basement is $2,000–$6,000. Whole-home insulation upgrades can be $5,000–$15,000.

Common projects include:
  • Attic insulation upgrade
  • Spray foam crawl space or basement
  • Wall cavity insulation
  • Weatherization and air sealing
  • Garage insulation

Simple insulation upgrades in existing walls and attics usually don't require permits. If the work involves modifying structure or electrical, permits may apply.

Frequently Asked Questions

How much does insulation services cost in Cambridge?
Blown-in attic insulation to bring an older home up to current R-value standards runs $1,500–$4,000. Spray foam insulation for a crawl space or rim joist is $2,000–$6,000. Many utility companies offer rebates for insulation upgrades — ask your installer about available incentives.
How do I find a reliable insulation services contractor in Cambridge?
A good insulation contractor starts with an energy audit or at least an R-value assessment of your current insulation. They should recommend the right material for each area (spray foam for air sealing, blown-in for attics, batts for accessible wall cavities).
Do I need a permit for insulation services in Cambridge?
Adding insulation to existing spaces (attic blow-in, wall injection) typically doesn't require a permit. If the project involves structural access, like opening walls, permits may be needed.

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