40 Years In Commercial Roofing

Thermal-Tec/ Michigan Inc, located in Cedar Springs, is celebrating its 40-year Anniversary this month. Founded by Earl Siterlet in 1983 with his two sons, Robert and Richard Siterlet, Thermal-Tec began as a modest insulation and roofing installation contractor in Sand Lake, MI. The company quickly became a premier roofing solution, sought after by critical manufacturers […]