
National Chimney Liners
National Chimney Supply (NCS) is proud to be the Premier Chimney Liner manufacturer for the chimney industry and a member of the National Chimney Sweep Guild.
National Chimney has been manufacturing M-Flex Stainless Steel and Aluminum Chimney liner systems in Vermont since 1992 and with the industry's largest variety of sizes, alloys and custom chimney liners, we're eager to fulfill your chimney liner needs. Learn how National Chimney Supply is “taking it to the next level” and come join our team of top quality M-Flex users. If you have never had the opportunity to use our top rated M-Flex chimney liner, please contact us to inquire about an M-Flex Sample kit!