Wincore was established in 2007 to offer a comprehensive line of vinyl windows for both new construction and remodeling applications. Rapidly growing in distribution area and product lineup, the company expanded to offer sliding patio door products and launched a fiberglass entry door program in 2010. Wincore also provides both impact-resistant windows and doors to meet coastal building code requirements.

The company currently services customers East of the Rockies and offers one-week lead times on standard products. The vinyl window manufacturer was started by a group of former Simonton Windows executives after Simonton was sold to Fortune Brands.