IWC Windows & Doors

International Window has been a foremost window and door manufacturer since 1957. Initially, our company specialized in Jalousie-style windows. Then, to strategically adapt to a growing and changing market, IWC expanded its offering of high-quality windows and doors. With a focus on product excellence and customer service, International Window continued to grow. Today, we have three production facilities in Hayward and South Gate, California, and Phoenix, Arizona. These strategically located facilities create a strong customer-service support network for regional product distribution, and significantly reduce lead times and back orders compared to many of today’s centrally located, mass-shipping distribution centers.

International Window offers products in both aluminum and vinyl. Various window styles include horizontal slider, single and double hung, fixed, casement, awning and bay and bow. Patio door styles include sliding and hinged configurations. International Window produces virtually any window style on the market and entertains custom style windows as well. The Company’s fully staffed engineering department ensures market-leading designs utilizing cutting edge technology within code compliance regulations.