USA Insulation of Southern NH

USA Insulation of Southern NH's reviewers split into two camps: one describes a crew that worked seven hours straight, cleaned up after itself, and left a house noticeably warmer within a day; the other describes rooms skipped, a job left unfinished, or a sales pitch that promised more than the installers delivered. The Manchester, NH company is the local franchisee of the national USA Insulation brand, offering injection wall foam, blown-in attic insulation, air sealing, and spray foam. Google shows a 4.6-star average from 303 ratings, and the detailed accounts back the praise: a crew that insulated a 4,000-square-foot garage and house footprint, enclosing recessed lighting and installing baffles between joists, cleaned up thoroughly afterward; another that drilled, foamed, and patched two closets so neatly the holes were invisible when finished. Reviewers name technicians repeatedly — Joel, Tim, Nick, Mike V. — for working quickly and explaining the process. The same period that produced those reviews also produced real complaints. A July 2026 review said the job was never finished after the crew had trouble getting foam for its injection rig, and they ended up spraying the basement with cans instead, with a poor result. A June 2026 review said two rooms — including the main garage — were skipped on a new addition, and the company was slow to make it right. A March 2026 review said ice dams kept happening despite being told the attic work would prevent them, after a month of unanswered calls. Sales conduct comes up too: a 2023 review said a salesman named Blake made false claims about New Hampshire's Energy Star rebates, though the installers did the work as trained, and a 2022 review described the same gap — a strong sales pitch followed by workers who skipped some of what was promised. For a straightforward attic or wall insulation job, plenty of reviewers came away pleased with the crew and the difference in comfort. Given how often incomplete work and sales overstatement come up, it's worth getting the scope of work and any rebate claims in writing before the crew arrives.