KOR‑Glass is your trusted partner for commercial entrance door installation in Ontario, CA, and nearby areas such as Rancho Cucamonga, Temecula, Fontana, Chino, and Riverside. We install a wide range of swinging and entry doors to suit the needs of various industries—from storefronts and restaurants to healthcare clinics and corporate buildings. Whether you're replacing a damaged door or outfitting a new facility, we help you choose the best solution for aesthetics, security, and long-term performance.

Our commercial entrance and swinging doors are engineered for performance and tailored to fit your building’s unique requirements. Whether you're looking for glass entry doors for your lobby, durable swinging doors for your warehouse, or fire-rated egress systems, KOR‑Glass delivers reliable, long-lasting results. We work with property managers, builders, and business owners throughout Southern California to install doors that enhance security, improve accessibility, and stand up to the daily demands of commercial operations.