MAP Building Specialties works out of 165 State Rd in Sagamore Beach, at the base of the Cape, with a second office in Seekonk. The company says it has been in business 50 years, and its own materials describe a two-sided operation: insulation and air sealing on one hand, building products on the other, including seamless aluminum and copper gutters, gutter guards, shower doors, mirrors, window treatments, closet systems and fireplaces, for both homes and commercial buildings.
Its stated service area runs well beyond Cape Cod, naming Providence, Newport, Boston, Provincetown, Sagamore Beach, Plymouth, Dartmouth and Taunton, which matches the Rhode Island contractor registration it lists alongside a Massachusetts construction supervisor's licence. Both numbers are the company's own claim and have not been checked against a registry here. It also presents itself as a certified Gutter Helmet installer.
Cape homeowners know them for the same pairing. In an October 2025 Reddit thread about gutter replacement, a commenter named MAP as the Sagamore Beach outfit that does gutters and insulation, while noting the name gives little away about what they do.
The homeowner record is small and it splits hard. The most detailed account, from a December 2024 Google review, came from a customer who worked with David Gendron on converting a wood-burning fireplace to a Heat & Glo propane insert and called the process flawless from first contact to completion, describing him as professional and well informed. Two shorter five-star reviews, from 2021 and 2022, echo the same note in a few words: fast, efficient, professional, an A+ job.
The complaints are about reaching the company rather than the work itself. A 2022 reviewer said they called repeatedly from three miles away and never got a callback to schedule an estimate, and described the receptionist as rude and unprofessional. A 2024 reviewer reported the same failure to call back, and separately criticised how the company's truck drivers handle themselves on the road. A third 2024 reviewer raised a safety complaint, saying the spray crew should confirm nobody is inside a building before spraying foam. The Google page as a whole sits at 3.4 stars across 18 ratings, consistent with that split rather than with either extreme.
For a homeowner, that shapes the questions rather than the answer. Get the estimate appointment confirmed in writing, and if the phone goes unanswered, treat that as the signal several reviewers describe. On an insulation job, ask directly how the crew clears and secures the building before spraying. Ask which licence covers your specific job and confirm the number with the issuing registry yourself. On the fireplace and gutter side, where the one detailed account, the Reddit reference and the company's own product focus all line up, ask to be walked through the equipment and the install sequence the way that reviewer was.