Graham Built Corp.

Graham Built Corp is a Pembroke-based insulation and weatherization contractor whose work runs almost entirely through the Massachusetts Mass Save program — attic, basement, and crawl-space insulation for homeowners upgrading their home's energy efficiency. Its Massachusetts home improvement contractor registration is active. A Reddit commenter also credited the company, alongside a business called East Coast Mini Splits, with a mini-split heat pump install, so an occasional HVAC job turns up alongside the insulation work. The Google history is deep and consistently positive: 4.9 stars across 54 ratings, with 30 reviews dated from late 2021 through early 2024 telling nearly the same story each time — crews of three to five who show up on schedule, explain the work as they go, and leave the house cleaner than they found it. Reviewers name the same crew leads repeatedly — Joe, Justin, Chris, and office staffer Nancy all come up more than once — which points to a stable team rather than rotating subcontractors. One reviewer whose crew spent four days finishing an attic and basement job called them professional, polite and informative, walking through the work before wrapping up, a fair snapshot of what shows up again and again in the shorter reviews too. Several customers say they compared options before choosing Graham Built for their Mass Save-funded insulation, a real vote of confidence when the homeowner had a choice of installer. There's no documented complaint to weigh against that run, so there's little to flag before booking beyond confirming current scheduling — the reviews on file run through early 2024, so it's worth checking today's lead times directly with the office. For an attic, basement, or crawl-space insulation job, especially one routed through Mass Save, this is a licensed, well-documented choice with a long run of specific, hands-on praise.