About Us

Commitment to excellence

Welcome to United Builders!

We are a General Contractor, not just a window installer, so we do the jobs other companies don’t want to do. For example: carpentry (replacing rotten wood), new headers, drywall , stucco, skywall windows , opening up walls, and reducing/enlarging window sizes.

If you don’t want to continue to pay high energy bills & don’t want to overpay for new windows...

Then United Builders can give you all the benefits of highly energy efficient windows at better prices than our competitors.

How do we do that?

We are a family owned company with 19 years in business, without the huge advertising costs. We don’t pay the industry average of 15-20% sales commission, since the owner gives all estimates himself. Read our nearly 500 reviews on Home Advisor

Learn more

Discover how we can improve your home

  • Technological 
    Innovation in Construction

    Building the future with advanced technology and innovative solutions.

  • Commitment to
    Environmental Sustainability

    Preserving the planet while we build your dream - environmental commitment in each project.

  • Excellence in 
    Customer Service

    Dedicated to exceeding your expectations and building lasting relationships.

Why
choose United Builders?

Superior Quality
and Best Prices!

So what makes United Builders special when it comes to Residential & Commercial Window & Door Replacement in Rancho Cucamonga, Chino Hills & Fontana? Most companies must pass their advertising costs and commissions to the customer to recoup expenses. Because we pay no sales commissions or hefty advertising expenses, we can save you as much as 20-50% over our competitors for the exact same products! Rest assured, we sell and install only high-quality, energy-efficient products of windows & doors, not low-grade builder materials.

See Products

Diverse
Solutions

Explore Our Extensive Product Range, Financing Options, and Professional Installation Services

Variety of Products

At United Builders we also install special products of residential and commercial windows and doors such as bay windows and vinyl greenhouse windows. We have a variety of options to meet all your window or door needs. Check with your sales representative to discuss your exact needs. At United Builders we have solutions for almost any of your window or door needs.

We Offer Financing

We now offer financing on our window and door replacements in Rancho Cucamonga, Chino Hills Fontana. This special program offers 100% financing, no up-front fees of costs, same as cash, and no prepayment penalties. Please call for more information regarding this special offer.

Professional Installation

United Builders has installers with many years experience in the window installation business, which guarantees consistency and a quality job – every time. At United Builders we only use professional grade products. We believe that by offering superior products our customers will remain satisfied for many years.

Family Owned

Partner in Quality Carpentry

United Builders is a family owned company committed to excellence and doing the job right, the first time. Over the years we have assembled a team of well paid and experienced master carpenters. Our reputation speaks for itself, 75% of our new business comes directly from customer referrals. United Builders is dedicated to Competitive Pricing and Superior Customer Service.

So what makes United Builders special when it comes to Residential & Commercial Window & Door Replacement in Rancho Cucamonga, Chino Hills & Fontana? Most companies must pass their advertising costs and commissions to the customer to recoup expenses.

Quality Products & Service

we sell and install only high-quality, energy-efficient products of windows & doors, not low-grade builder materials. Because we pay no sales commissions or hefty advertising expenses, we can save you as much as 20-50% over our competitors for the exact same products! Rest assured,

Voices
of Our Customers

Just completed a 19 window install job at our home. Excellent service, no non-sense estimate and quality CLEAN installation.

Kevin H., Temecula, California

Beautiful windows that cut down heat and noise from outside. Well worth the investment. Had 2 sliders and 20 windows replaced.

Kevin H., Temecula, California

United Builders is a GREAT company and I saved over $10,000 from my highest quote for 45 windows. The electric bill is.

Kevin H., Temecula, California

I absolutely love the results of my windows and patio doors. Interacting with Rick and the installers was pleasant.

Kevin H., Temecula, California

This is long overdue! Several months ago I had the pleasure of meeting Rick Andronicos of United Builders.

Kevin H., Temecula, California

Our
Locations Service

Superior Quality
and Best Prices!

Riverside County

San Bernardino County

Orange County

Don’t see your area listed? Send us a message.