Wincore Window Company manufacturers vinyl-based windows for both new and replacement work. The company began operations in January 2007 where the company worked a total of 58,193 hours. This year, the company is on track to work over 1 million hours. Wincore is made up of three facilities, two In Parkersburg, West Virginia, and one in Swainsboro, Georgia. In addition to windows the company also produces high-end entry and patio doors.