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USA Insulation of Southern NH is the Manchester, New Hampshire, franchise of the national USA Insulation brand, running injection wall foam, blown-in attic insulation, air sealing, spray foam and commercial insulation jobs across the region. It carries an A+ Better Business Bureau rating and a deep footprint online — 254 reviews since 2021 feeding a 4.6-star Google average from 303 ratings, plus a 4.5-star Thumbtack average from 52 ratings. The volume of praise is real and specific. Reviewers from 2022 through 2026 repeatedly name individual crew members — Joel, Tim, Christiono, Dave, James and others turn up again and again — and describe them as professional, punctual and thorough, cleaning up after themselves and finishing on schedule. A 2026-04-07 review described a house the homeowners didn't think could be foam-insulated getting done anyway, with communication the reviewer called "constant" from the first meeting to the last; reviewers in 2023 and 2026 said they felt an immediate difference in comfort and lower heating use once the work was in. The same span of years also holds a pattern worth knowing before booking: a gap between what the sales visit promises and what the installation crew delivers. A 2022-09-03 review said the pitch oversold what installers actually completed, including old insulation that wasn't fully cleaned out; a 2023-08-09 review said a named salesman made false statements about New Hampshire's Energy Star insulation rebates, though it credited the installers with doing the work as trained. More recently, a 2026-06-19 review said a crew skipped two rooms on a new garage addition, and a 2026-07-08 review said the job wasn't finished because the crew ran out of foam for their equipment and settled for a weaker can-spray fix in the basement. A 2026-03-07 review said the company assured a customer new attic insulation would stop ice dams, but the dams kept coming and a promised follow-up plan never materialized after a month of calls. A 2025-11-18 update said the reviewer couldn't get a callback despite emailing and calling more than once, and an undated Better Business Bureau review describes broadly poor communication from the start of a floor-insulation job. Given that mix, it's worth nailing down the exact scope of work — which rooms, which walls, which method — in writing before the crew arrives, and following up promptly in writing if anything needs a return visit.
This company is hands down the best. From prompt arrival time, explanation of the process and roughly the time involved to complete the job. The 2 gentlemen were extremely knowledgeable and very polite. We both highly recommend them if you have insulation issues!
The man that came were hard-working and professional. They did a great job,very happy with them.
What an excellent all-around experience! From the office staff to the field technicians, everyone was knowledgeable, friendly, professional, and a pleasure to work with. During the initial installation, the crew discovered wood rot in one section and advised that they could not complete that area until the necessary repairs were made. They assured me they would return once the repairs were completed. Several months later, after the wood rot was repaired, all it took was one phone call. The work was promptly scheduled and completed in a timely and professional manner. Outstanding customer service from start to finish. I highly recommend USA Insulation!
Great crew, polite and worked very hard to get the job done in just one day! Would definitely recommend!
They never finished the job. I was told they had problems getting the foam for the big rig. They ended up spraying the basement with cans but it did not come out great. I was very disappointed.
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1 change recorded — last scanned Sep 2, 2026.
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