Mahan Slate Roofing Co.

Slate and copper are Mahan Slate Roofing’s focus. The Agawam company says on its BuildZoom profile that its employees are trained in those materials, and it draws a specific boundary around its work: it does not install asphalt shingle roofing or commercial flat roofing. BusinessWest also describes the company as specializing in slate and copper roofs for residential, institutional and commercial structures. The company’s website says it has been in business for 47 years and that its employees receive customer-service training. In an April 2025 Google review, someone who said they had worked with Mahan for many years described it as a multigenerational family company and praised its craftsmanship, honesty and commitment to doing the job right. Its Massachusetts home improvement contractor registration, number 161091, is active. BBB gives the company an A+ grade, while Google shows a 4.2-star average from five ratings. BuildZoom lists Connecticut home improvement contractor number HIC.0628970 for the company and shows 19 projects.