Why Vinyl?

The popularity of vinyl is due largely to energy efficiency. Vinyl is an effective thermal insulator and is well recognized as an excellent frame material for energy efficient windows. The National Fenestration Rating Council (NFRC) and the Department of Energy (DOE), have developed rating systems for measuring how energy efficient a window is.


Click on the links below to view brochures and specifications on specific models from Custom Window Systems (CWS) and Eastern Architectural Systems (EAS).