General Info

Incorporated in 1977, Duo-Corp. is one of the leading manufacturers of hopper and sliding style vinyl basement windows in the United States. With a huge production facility, it offers wide range of products in different sizes and specifications. Aristoclass, utility vinyl window, vinyl basement window, Patriot and P-N-P Hopper are some of the main products manufactured by the company. Duo-Corp. also offers complete installation and customer support services. The products of the firm are widely used in numerous applications, including new construction and replacement options.