The Weatherize Guyz ,LLC

The Weatherize Guyz is a Hooksett, NH insulation and air-sealing contractor run by owner Mike Smith, who says he's spent more than 15 years in the weatherization trade and holds BPI Building Analyst and Building Envelope Professional certifications. The company's Massachusetts home improvement contractor license is active and verified with the state, it's A+ rated and accredited by the BBB, and it holds an EPA lead-safe renovation certification through January 2027. Much of its work comes through the NHSaves and MassSave energy-efficiency programs, which reviewers describe covering a significant share of the project cost — one review cites a rebate of up to 75% of recommended work. The specifics in 34 reviews spanning 2022 to 2026 are remarkably consistent: crews (customers name Mike, Dan, Lyle, Josh, Nate and others across the years) show up on time, protect the home and landscaping, and leave the site cleaner than they found it. A 2023 review described a whole-house job — walls, attic, crawl space and cellar insulated, plus a cracked beam and attic ventilation repaired. In 2025, a crew found vermiculite insulation in a customer's attic mid-job and promptly flagged it rather than working around it quietly. Homeowners on decades-old, previously uninsulated houses — a 1955 Cape, a 115-year-old home — describe an immediate, noticeable difference in comfort after the work. There's one clear exception. A January 2026 review described waiting two months for the crew, who then arrived with what the customer called an unprofessional attitude and refused to do the work, calling the overall experience a poor one. Set against 33 other reviews describing careful, on-time, well-communicated work, that single account reads as an outlier rather than a pattern — but it's recent enough to be worth asking about directly: current scheduling timelines and what happens if a job needs to be rescheduled.