General Info: Western Window System supplies aluminum, vinyl and specialty window systems for homes and offices. Western Window Systems, located in Phoenix, Ariz. has a range of products, from horizontal or vertical windows, to horizontal sliding doors and windows. Western s Series 100 windows are available in horizontal sliding, single hung and fixed. The company s combination window integrates a rectangular picture window over a horizontal slider and is ideal when the application calls for a large view window and ventilation. Western Window System s frame finishes are available in virtually any color of high performance paint, as well as dark bronze and clear anodized. Its most popular frame finishes are warm tone tan paint and dark bronze anodized. Western maintains a significant inventory of these two finishes to facilitate competitive pricing and short lead times.