Since 1937, our mission has been to provide quality sheet metal and roofing services. We strive to meet and exceed the customer's expectations and requirements. Business at A.W. Therrien Company is always conducted in a fair and professional manner. We provide a professional service to all of our clients who rely on our expertise.

We service New Hampshire as well as Southeastern Vermont and Southern Maine.

A.W. Therrien Company is affiliated with the NERCA (North/East Roofing Contractors Association) and NRCA (National Roofing Contractors Association)

Therrien Sheet Metal

The sheet metal division has the machinery and expertise to fabricate various sheet metal products. We are equipped for both welding and plasma cutting. Inventory consists of various gauges of copper & lead-coated copper; mill, finished, painted and anodized aluminum; galvanized, cold rolled and stainless steel.

Therrien Roofing

Our roofing services include the professional installation of EPDM, PVC, TPO, modified bitumen, built-up roofing (asphalt and coal tar), coatings, shingles and slate and metal roofs at competitive prices. We can also handle complete tear offs, go overs, new construction, repairs, and penetration installations.