About | REU Windows Doors Design

About REU Windows & Doors

The Real Energy Upgrade

REU Windows & Doors is quietly redefining what homeowners expect from window replacements in Colorado. Tired of seeing the industry’s usual frustration — low-grade products, poor installs, and empty promises — we set out to build something different. A company grounded in honesty, quality, and genuine care for your home.
We are the window company that cares.

Experience The REU Difference

More Than Just Windows & Doors

REU Helps Make Your House A Home

We believe window upgrades should transform your living space — making it more comfortable, quieter, and stunningly beautiful. Whether restoring a historic home or building a mountain retreat, our solutions deliver lasting energy savings and style.

Our process is easy and transparent, with low-pressure sales and a focus on finding the perfect fit for your lifestyle. We stand behind every installation with top-tier warranties and ongoing service, so your investment continues to pay off for years.

Built for Colorado’s Climate and New Standards

With Colorado’s updated energy codes for replacement windows, it’s more important than ever to choose windows designed to perform. Our products are built to handle harsh winters and hot summers — keeping your home cozy, quiet, and energy-efficient year-round.

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Experience the REU Difference

See Before You Buy: Soon, our showroom will let you experience our window collections firsthand — see, touch, and feel before deciding.

Quality Installations: Expert installers treat your home with care and precision, ensuring a smooth, efficient process from start to finish.

Future-Ready Service: Our industry-leading warranties include ongoing service to keep your windows looking and performing beautifully.

Our Mission

REU Windows & Doors aims to be Colorado’s friendly neighborhood window company — the one neighbors trust, where integrity meets innovation, and where your home’s transformation is our passion.

Exclusive Technology,
Select Homes

We’re always innovating! A limited number of homes get to showcase our latest technology at special pricing as one of our Model Homes. Could yours be one of them?

See if your home qualifies for a REU upgrade!

Let's Talk Windows