Cape Cod Insulation, Inc

Cape Cod Insulation is a South Yarmouth insulation contractor that says it has served the Cape for more than 50 years, growing from a one-man operation into a team of more than 40 employees; Better Business Bureau records show it was incorporated in 1981. Its Massachusetts home improvement contractor registration is active, verified against the state registry, and BuildZoom's permit history puts it in the top 5% of Massachusetts licensed contractors, with 1,700 recorded projects — most of it Mass Save weatherization, air sealing and insulation work across Cape Cod and the South Shore. Eleven reviews from 2022 through 2026 run a clean five stars, and the pattern holds across very different jobs. Homeowners describe attic and whole-house insulation upgrades that made an immediate, noticeable difference in comfort and heating costs, crews that show up on time and clean up after themselves, and staff who explain insulation code requirements clearly to owners managing their own additions. One reviewer, in 2024, said the company walked them through unfamiliar insulation codes and scheduled around multiple construction starts and stops without losing track. On the commercial side, a 2025 review credited the company with installing several thousand square feet of ceiling grid for a new church building at what the customer called a reasonable cost. Several reviews specifically describe work done through the state's Mass Save energy-efficiency program — air sealing, insulation and duct upgrades — finished on time and without a mess. The company also holds an A+ Better Business Bureau grade, and federal disclosure records show it received a $619,833 Paycheck Protection Program loan in January 2021. For a homeowner weighing an attic or whole-house insulation job, a Mass Save upgrade, or a home addition that needs to meet current insulation code, the consistency and depth of this record — recent, detailed, and covering both small and large jobs — make this a strong option worth calling.