Architectural Doors & Windows began in 1946 as Portland Glass with a single shop in Portland, Maine, specializing in automotive glass repair. The Company was founded by Samuel Cohen, who had learned the glass trade in Boston and Lewiston, and who moved to Portland in 1946 to set up his own business. Over the years, the company expanded to offer various services including storefront glass replacement, curtain wall, and Alucobond fabrication and installation. Today, AD&W is one of the largest fabricators and installers of curtain wall, storefront, custom entrances, and Alucobond in the region.