Insulation and Energy Saving Solutions
Serving New Hampshire, Southern Maine & Massachusetts
Contact us for consultation or a free estimate.
Insulation Services Built for New England
From new construction to renovations and upgrades, Grade 1 Insulation installs practical insulation and air sealing systems that improve comfort, efficiency, and building performance.
Blown-In Insulation
Cellulose insulation for attics, dense coverage, and improved R-value.
Batt Insulation
Clean fiberglass batt installs for framed walls, ceilings, additions, and new builds.
Spray Foam
Open cell and closed cell systems for air control, rim joists, roofs, and hard-to-insulate areas.
Air Sealing
Targeted sealing that helps reduce drafts, heat loss, and unwanted air movement.
Serving New Hampshire, Southern Maine & Northern Massachusetts
We work with homeowners, builders, contractors, and commercial clients throughout the region. Our local experience helps us recommend insulation systems that fit New England weather, building practices, and energy expectations.
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.
Built Around Project Momentum
Clear estimates, dependable scheduling, clean installs, and code-conscious work keep jobs moving. Whether it is a custom home, production build, addition, or retrofit, we treat the insulation scope as part of the full building system.
Project Photos
See Recent Insulation Work
View completed and in-progress insulation projects across New Hampshire, Southern Maine, and Northern Massachusetts, including fiberglass batt insulation, spray foam, vapor barrier details, attic work, additions, and commercial projects.
Google Reviews
Highly Rated by Local Customers
Customers highlight reliable scheduling, professional work, and insulation upgrades that improve comfort.
★★★★★
"We hired Grade 1 to air seal and add insulation to our attic to get us to from R-30 to R-60. The team was fast and professional. After they were done my wife commented that she now has goosebumps from the air that is coming from the air conditioner since it is so much colder! We had no idea how much energy were were losing to our under-insulated attic! I expect to save on energy bills and add years of life to my air conditioner since it should run less. Well worth the cost!!"
MRK, Google review excerpt
★★★★★
"Keith and his team do a fantastic job. It's nice to work with a company/owner that truly cares about not only the work they install, but the satisfaction of his customers as well. Insulation is an important part of any home that often gets over looked or hidden behind the drywall. If you want a job done well, I highly recommend giving Grade 1 insulation a call. You won't be disappointed"
Benjamin Couture, Google review excerpt
★★★★★
"Keith and his crew at Grade 1 Insulation did a fantastic job blowing in insulation in our home! Due to a kitchen renovation, we had three ceilings with no insulation, and they made quick work of it. They arrived on time, went above and beyond the original quote, and ensured everything was done efficiently and professionally. Our house is warm again, thanks to their excellent work. Highly recommend Grade 1 Insulation!"
Scott Silva, Google review excerpt
Ready for a Free Estimate?
Tell us about your project and we will help identify the right insulation approach for the building, climate, and budget.
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