Insulation contractors in Maine
Find insulation contractors across Maine. Use the city pages below to compare local pros, or scroll down to see the top-rated contractors statewide.
Browse insulation contractors by city in Maine
Choose a city to compare insulation contractors near you.
Portland, ME
Top-rated insulation contractors in Maine
These are the highest-rated insulation contractors across all cities we track in Maine.
Map loading
Sort and filter contractors
Narrow the list for Maine by service, rating, or contractor name.
Casco Bay Insulation Inc.
84D Warren Ave, Westbrook, ME 04092
Casco Bay Insulation provides dense-pack cellulose insulation and full building envelope services for new construction and existing homes in Greater Portland and along the Maine Coast, with design-assisted planning and blower door testing, backed by strong customer reviews.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“We use sustainable dense pack cellulose insulation and vapor variable interior air barriers to create tight, moisture safe building envelopes.”
website: States material and air-barrier approach used.
Workmanship
Excellent
Communication
Excellent
Scheduling
Excellent
Cleanup
Excellent
Horizon Homes
865 Spring St, Westbrook, ME 04092
High-rated home performance provider offering insulation, air sealing, heat pumps, and efficiency assessments with a Whole-Home Approach; strong service menu and financing options, but mixed reviewer feedback on communication and scheduling.
Services offered
Reviewer highlights
Trust signals
From reviews & website
“Insulation”
website: Shows insulation is a service offered
Workmanship
Mixed
Communication
Mixed
Scheduling
Mixed
Cleanup
Ask during quoting
Anderson Insulation of Maine
72 Industrial Park Rd, Saco, ME 04072
High-rated Maine insulation contractor offering spray foam, fiberglass, and cellulose insulation.
Services offered
Trust signals
From reviews & website
“Maine Spray Foam & Fiberglass Insulation Contractors | Anderson Insulation of Maine”
website: Shows core service scope and branding as a Maine insulation contractor.
Workmanship
Ask for references
Communication
Not enough data
Scheduling
Ask during quoting
Cleanup
Ask during quoting
Southern Maine Spray Insulation
21 Tee Dr, Portland, ME 04103
Southern Maine Spray Insulation provides spray foam, blown-in cellulose, and fiberglass insulation with air sealing in Portland, Maine, focusing on reducing heat loss and improving home energy efficiency.
Services offered
Trust signals
From reviews & website
“We install spray foam insulation, blown in cellulose & fiberglass insulation, seal your home from air leakage”
website: States core insulation services and air sealing focus.
Workmanship
Excellent
Communication
Excellent
Scheduling
Good
Cleanup
Ask during quoting
Evergreen Home Performance
190 Riverside St #2A, Portland, ME 04103
Evergreen Home Performance provides energy audits, insulation, air sealing, and basement waterproofing in Portland, ME, supported by diagnostic tools such as blower door testing and thermal imaging.
Services offered
From reviews & website
“Energy Audit”
website: Shows they offer energy audits as a service.
Workmanship
Ask for references
Communication
Not enough data
Scheduling
Ask during quoting
Cleanup
Ask during quoting
Northeast Spray Insulation
511 Riverside Industrial Pkwy, Portland, ME 04103
Northeast Spray Insulation is a Portland, ME insulation contractor listed with a 4.4 rating and public contact options (phone and website).
From reviews & website
“511 Riverside Industrial Pkwy, Portland, ME 04103”
website: Physical address confirms local service area and legitimacy.
Workmanship
Ask for references
Communication
Not enough data
Scheduling
Ask during quoting
Cleanup
Ask during quoting
What to verify in Maine
Plan before you hire
These pages help you build a shortlist, but they don't replace a proper scope discussion with each contractor. If you're still deciding what work your home needs, start with the insulation planning guide and ROI calculator.