Contact Grade 1 Insulation
Request a free estimate for insulation, air sealing, spray foam, attic upgrades, crawl spaces, basements, garages, commercial projects, and more.
Get an Estimate
The fastest way to start is to call or email with a few project details. We work with homeowners, builders, contractors, and commercial clients across New Hampshire, Southern Maine, and Northern Massachusetts.
Helpful Details to Include
- Project town or address
- New construction, renovation, addition, or retrofit
- Areas involved: attic, walls, basement, crawl space, garage, rim joists, or commercial space
- Preferred insulation type if known
- Plans, photos, or project notes if available
- Target schedule or deadline
Google Reviews
5.0 Rated by Local Customers
Based on 5 Google reviews from customers who hired Grade 1 Insulation for insulation and air sealing work.
Service Area
Grade 1 Insulation is based in New Hampshire and serves projects throughout New Hampshire, Southern Maine, and Northern Massachusetts. If your town is nearby but not listed, call or email and we can confirm availability.
New Hampshire
Manchester, Concord, Nashua, Portsmouth, Dover, Rochester, Salem, Derry, Londonderry, Exeter, and surrounding communities.
Southern Maine
Kittery, York, Wells, Kennebunk, Sanford, Biddeford, Saco, South Berwick, Eliot, Berwick, and nearby towns.
Northern Massachusetts
Haverhill, Newburyport, Amesbury, Salisbury, Lawrence, Methuen, Lowell, Andover, North Andover, and surrounding areas.
Homeowners
Upgrades for comfort, efficiency, attics, basements, crawl spaces, additions, and existing homes.
Builders & Contractors
Reliable scheduling, clear scope, and professional installations that keep projects moving.
Commercial Projects
Insulation and air sealing support for light commercial spaces, tenant improvements, and contractor-led work.