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.