United Builders

Family-run General Contractor

About Us

United Builders is a family-owned contractor focused on high-quality window and door replacement for Southern California homeowners who want the job done right the first time. We’re owner-led and referral-driven, known for professionalism, clear expectations, and clean finished results. With 20+ years in business, 30+ years of hands-on experience, and more than 10,000 completed projects, we’ve built a reputation by doing the work carefully and standing behind it. We install Anlin windows and doors for their locally manufactured quality and industry-leading warranty support. We’re also licensed as a California General Contractor and glazing contractor under CSLB #841148, which means we can handle the carpentry and finish work that often comes with replacement projects. Fewer handoffs. Better accountability. A finished look that stays consistent across the home, including in HOA communities.

YEARS IN BUSINESS

HAPPY CUSTOMERS

PROJECTS

SATISFACTION

A customer-first company, led by ownership

United Builders is owner-led from the first conversation through the final walkthrough. You can expect clear communication, fast decisions, and a process built around finished results. You work with one accountable team focused on quality, schedule, and a clean final appearance.

Professional Installation

Many window and door projects look simple until the old unit comes out. Older homes and/or older installations can reveal damaged framing, uneven openings, or finish surfaces that need repair to achieve a clean final look and a reliable seal.

United Builders is licensed in California under CSLB license #841148. We carry both General Building and Glazing classifications, allowing one contractor to stay responsible for the entire scope of the project, including the carpentry and finish work that can otherwise cause delays, added cost, or finger-pointing.

What sets us apart

Customer satisfaction mindset: We stand behind our work and stay engaged until the project is complete.
General Contractor capability: Carpentry repairs, new headers, drywall, stucco, and opening adjustments handled in-house when needed.
HOA experience: Familiarity with approval requirements and the importance of consistent exterior appearance across elevations.
Accountability from start to finish: One team responsible for performance and finish quality.

Excellence in Manufacturing

United Builders works with Anlin because the product line aligns with what Southern California homeowners care about most: comfort, durability, and long-term support. Anlin publishes performance information for its products, and their warranty coverage is a major reason homeowners feel confident choosing the brand.