Souzet

Souzet is based in Holliston, MA. Its website says it helps Massachusetts homeowners insulate, air-seal and upgrade their heating, and that it handles the Mass Save paperwork for the rebates. It holds an A+ grade from the Better Business Bureau. A recent Google review calls the insulation work on the customer's house perfect, and says that customer is now in the process of installing the AC and heater. Another recent review says they did a great job with the insulation and calls them friendly, helpful and efficient. One recent customer says they explained everything clearly, did the installation fast, and that the customer noticed a difference temperature wise. A recent review of a job at a house in Rockland calls them professional and on time, and another says the workers left everything clean. In a 2025 Google review, a customer whose oil tank began to leak described switching from oil to a new heat pump, completed in four days, and wrote that they even contracted a company to help remove the leaking oil tank. In a 2026 Google review, a customer reported a huge difference in temperature inside the house, checked the work in the attic, and recommended them for MassSave programs. A 2025 Google review said the team came to check on adding insulation to walls and attic space through Mass Save, and that it cost that customer $0 from start to finish. A recent 1-star Google review describes driving 3 hours to the property for an appointment where no one showed up, and says the person who scheduled it forgot to call to cancel. In a 4-star 2025 review, a customer wrote that he explained everything as he went, but that the cellar was freezing and its rafters still needed insulation.