Ranked as one of the nation’s leaders in the manufacturing and master distributor of commercial roof drains, vents, equipment and accessories. Marathon is committed to providing its significant distributor network, architects, specifiers and ultimately the contractor with quality products, competitive prices and the best customer service in the industry. Marathon was started in 1966 as a small manufacturing facility of Copper Drains in Buffalo, NY with an emphasis on growing customer base and its line of products. Since those small beginnings, Marathon has expanded significantly to its new facility in Orchard Park, NY in 2008 and sells products throughout the US, Canada and many countries abroad.