Design Window & Doors INC

For the very best in high quality replacement windows, replacement doors, and window shutters, Design Windows & Doors INC is your premier source. We offer a large selection of vinyl windows, aluminum windows, wood windows, fiberglass windows, entry doors, patio doors, french doors, utility doors, wood shutters, vinyl shutters, and more. With a showroom in Ontario, CA, we service homeowners throughout the surrounding area including Ontario, Chino, Montclair, Pomona, Laverne, Rancho Cucamonga, and more. As a family owned & operated business, we do not subcontract our work and keep all of our installers in-house. We have made it our mission to hire the best window and door installation experts and use the finest products available. Throughout our many years of service, we have helped thousands of customers add value, beauty and comfort to their home or property through attractive new windows and doors. From private homes and rental properties to businesses and multi-unit complexes, we can provide you with an unsurpassed selection of new windows, doors and installation service.