As a Division of Overhead Door Co. of Grand Rapids, Calumet Building Group Ltd. has been serving West Michigan since 1991. We offer a wide range of building products for Home and Business Owners, Builders, General Contractors, and Architects. Our products include, but are not limited to, Citadel Concrete Floor Coatings, Loading Dock Equipment, Zero-Clearance Fireplaces, Gas Logs, Beam Central Vacuums, Security Grilles, High Speed Doors, Insect Control Barriers, Air Curtains, Strip Doors, and Fire Rated Doors.