Mass Green Insulation

Mass Green Insulation works out of Hingham, and the word that keeps showing up across its Google reviews is clean — installers who protect the rooms they're working in and leave nothing behind once the spray foam cures. Builders and general contractors are some of its most frequent customers: one homebuilder says he's used the company "for several years," and another describes Mass Green completing 13 separate insulation jobs — full homes and additions — on their projects. The pattern across 111 reviews going back to 2021 is consistent: 4.9★ on Google from 166 ratings, and the same names surface again and again — Bruno, Fabio, and Ronnie among the sales reps and crew leads customers single out for being responsive and easy to reach before the job even starts. A HERS rater is quoted twice praising the company's work, once noting the crew "never failed a door blower test" — a detail that matters to anyone insulating specifically to hit an energy-efficiency target. One customer's garage-addition job, dated back to 2023, had Mass Green doing foundation waterproofing with foam boards alongside the spray-foam attic and wall work, so its reach extends past attics into basement and foundation sealing. Two things worth asking about before booking. The Better Business Bureau currently grades the company an F, a sharp contrast to its Google standing that nothing else here explains — worth raising with them directly. And in a 2022 review, one customer described the pricing as "fully loaded with surprises and hidden fees" and called the experience "very unfair" — an outlier next to years of reviews calling the pricing competitive and fair, but a real account worth weighing since it's the only sharply negative review in an otherwise long, steady history. Mass Green is a solid call for a straightforward insulation or spray-foam job — attic, whole-home, or a builder's new-construction shell — where reviewers describe fast quotes and tidy installs. Get the pricing spelled out in writing before signing given the one fee complaint and the BBB grade, and confirm the specific foam type or R-value being quoted.