Marvin Windows and Doors is a manufacturer of custom window and door products with key locations throughout the United States.The company was the first in the industry to deliver product via company-owned fleet of trucks, introduce wood bead glazing instead of putty, offer factory-installed jamb extension, re-introduce round tops to the market, offer Low-E glass on entire product line, introduce standard sized curved glass windows and to introduce standard corner glass windows. The Marvin Companies is composed of three different window and door companies. Marvin Windows and Doors, Integrity Window and Doors and Infinidity Replacement Windows. George Marvin founded the Marvin Timber and Cedar Company in 1912, and months later renamed it the Marvin Lumber and Cedar Company. Second, third, and fourth generation Marvins still remain actively involved in the business in Warroad Minn., a community of nearly 2,000 people.