Thiel Bros. Roofing, Inc., based in Sidney, Montana, is a third-generation, family-owned business with a rich history dating back to 1955. Predominantly working in the commercial and industrial sectors, Thiel Bros. Roofing specializes in a range of roofing types including single-ply systems such as TPO, EPDM and PVC, as well as standing seam metal roofs and wall panels.

They also have a notable history of working on historical roofs, having completed projects like the Daniels County Courthouse dome in Montana and the JCPenney store in Crosby, North Dakota.

The company is deeply involved in the Montana Roofing Association, being one of its founding members since its inception in the late 1980s. Their work extends primarily across Montana and North Dakota, with occasional projects in Wyoming and South Dakota.

With a focus on reroofing, they also handle maintenance, evaluations and new construction projects. Thiel Bros. Roofing values strong community ties and collaboration within the roofing industry, which has fostered a supportive environment among local contractors.