For over 20 years, United Builders has been a trusted name in Southern California and the Inland Empire, delivering high-quality window and door replacements at unbeatable prices. As a family-owned business, United Builders takes a hands-on approach—its owner is personally involved in every sale, ensuring each customer receives personalized attention and expert guidance throughout the entire process. This dedication to service not only builds trust but also ensures that every project is handled with care and integrity.
At United Builders, customer satisfaction is the foundation of everything they do. Their team of experienced, highly skilled installers prioritizes precision and attention to detail, ensuring that every project is completed flawlessly the first time. Whether it’s enlargements, reductions, alterations, or modifications, United Builders specializes in custom solutions—relocating windows and doors, converting windows into stunning French doors, and even handling necessary drywall and stucco adjustments for a seamless, finished look.


Neighborhood Standout
A recent project in Chino Hills showcases their commitment to craftsmanship and design. The homeowner selected the sophisticated Designer Black™ finish for their windows and doors, creating a bold contrast against their light stucco exterior. The result? A stunning transformation that elevated the home’s curb appeal, turning it into a neighborhood standout. More than just a beautiful upgrade, the sleek black accents added a modern, refreshed aesthetic—and the homeowner couldn’t be happier.
With a dedication to quality, expertise in specialized projects, and a customer-first approach, United Builders continues to set the standard in window and door replacement.