Founded in the late 1940's , Biltbest Windows and Patio Doors was a leading manufacturer and the very first window manufacturer to receive a patent on an aluminum cladding process for their windows and doors. For over 60 years Biltbest maintained a reputation of exceptional quality, service and window and door industry innovations. Although the company went out of business in 2010, you can now find all the Biltbest OEM replacement and repair parts at  ..   http://www.BiltbestWindowParts.com  ..  and order all the repair and replacement parts for your Biltbest windows.