Founded in 1952, Wojan Window & Door Corp. manufactures custom commercial aluminum windows and sliding glass doors for the U.S. marketplace from facilities in Charlevoix and Coldwater, Michigan. The diverse product line i......Founded in 1952, Wojan Window & Door Corp. manufactures custom commercial aluminum windows and sliding glass doors for the U.S. marketplace from facilities in Charlevoix and Coldwater, Michigan. The diverse product line is rated for a variety of commercial and architectural applications, and includes blast-resistant and hurricane impact models. Wojan is an approved supplier for Hilton® Worldwide and Marriott®, a member of AAMA (American Architectural Manufacturers Association), and a registered provider with the American Institute of Architects Continuing Education System. Situated in the northwest corner of Michigan’s Lower Peninsula, Charlevoix enjoys four distinct seasons driven by the city’s setting on the Great Lakes shoreline. Product design inspired by our location serves as a market differentiator and comparative advantage. Our beautiful summers and snowy winters provide a ready testing ground for developing economical, energy-efficient products. Furthermore, the unspoiled, unhurried surroundings keep us focused on giving our customers the personalized attention they deserve.