For optimum efficiency, a polypropylene leaf vinyl is used on all four sides of the sash, and all interior frame stops are weatherstripped with dual durometer bulb weatherstrip that resists compression set. When you release the bottom lock, the top unlocks too. It is easier and safer that way. We have an adjustable sash that allow you to square up the sash and frame without removing the window or pulling on the screws. Our casements and awnings are equipped with goldtone hardware that is standard.
Sturdy worm gear dual-arm sash operator, opens and closes with ease.
BiltBest's exclusive adjustable concealed hinges are constructed of steel for maximum strength. White hardware is optional. Our standard is a casement window turned on its side. Additional Options Available 1. A large selection of bow and bay units.