Great Day Improvements is the exclusive retailer, manufacturer and installer of the well-known brands Patio Enclosures and St ... anek Windows. Headquartered 20 miles south of Cleveland in Macedonia, OH, Great Day Improvements operates a central manufacturing facility and store support center that serves the organization’s corporately owned locations as well as its network of Patio Enclosures’ franchises and dealers throughout the Eastern and Midwestern United States. read more