Quality Window and Door Replacement in Ontario, San Bernardino, Fontana

Greater Ontario's trusted contractor

Design Windows and Doors Inc. is a family owned business and the top provider of window and door services in Greater Ontario. We are an A rated member of the Better Business Bureau and California League of Homeowners and ever since our start in 2005 it has been our goal to provide personalized, exemplary service at a fair price, and we take our promises seriously. We do not subcontract our installers (who are AAMA and RRP certified) and tailor our services to you, the customer.

Most of our customers would say our efforts have paid off. We receive many repeat and referred customers and take pride in the fact that we are known to be ethical, efficient, and provide outstanding customer service. So, if you need window or door services in Fontana, San Bernardino, Ontario, Rancho Cucamonga, Victorville, Rialto, Hesperia, Chino, Chino Hills, Upland, you know who to contact. Reach out to us online or give us a call at 1-909-980-3003 to schedule your free estimate!