Duo-Corp
Duo-Corp. manufactures hopper and slider style vinyl basement windows and egress windows for new construction and replacement applications for both concrete block and poured concrete foundations.
Duo-Corp. is family owned and operated and proudly manufactures our products in the U.S.A.
We stock the Aristoclass, Competitor and P-N-P Hopper Window but we can order more styles from Duo-Corp if requested.