About 1st Choice Windows & Siding, a Trusted Home Improvement Company Serving the Denver, CO, Area

A beautiful, large American home shown from the outsideAt 1st Choice Windows & Siding, we’ve been installing quality in Denver, Colorado, and surrounding communities since 1995. We specialize in providing outstanding solutions for windows, siding, and doors, all at affordable prices that make the lives of our customers easier. We never compromise on quality, either, as we work with industry-leading brands to ensure that the homeowners we serve benefit from top-notch craftsmanship and customizability. Our goal has always been complete customer satisfaction, a dedication to excellence that’s evidenced by our A+ rating with the Better Business Bureau and extensive positive reviews.

Why Choose Us?

Honesty and integrity mean everything to us here at 1st Choice Windows & Siding, and that means putting your needs above our bottom line every single time. Whether you call us for new windows, doors, siding, or another exterior remodeling solution, you can expect unmatched service from start to finish. You won’t find any hidden fees or unpleasant surprises when you work with us—only exceptional products and installations completed by a team of experienced professionals. Our customers choose us over other local home improvement companies because we:

Are Committed to Craftsmanship

As a small, family-run company, we pride ourselves on the work we do. That’s why we stand by our installations by offering our own 10-year installation guarantee on every purchase to ensure your complete satisfaction.

Offer Specialized Solutions

We hold a General Contractor license that allows us to offer services that other local contractors can’t, including cut-in services that can add a window or door where there wasn’t one previously.

Simplify the Remodeling Process

We offer convenient financing options that could have you paying less per day for your new windows than you would for your favorite cup of coffee, and you could even pay no interest or make no payments for months after installation.

Partner With the Premier Local Home Improvement Company

When it’s time to transform your home, turn to the contractor trusted by countless homeowners in the Denver, CO, area: 1st Choice Windows & Siding. To learn more about our team or the home improvement services we offer, contact us today.




“Chris was an absolute gem to work with and the window suggestions were perfect. The home was built in 1962 and had all of the old steel frame windows which were losing energy rapidly. We noticed an immediate change in the environment inside the house and the outside looks fantastic. Great installers.”

Committed to Craftsmanship

Let Us Be Your 1st Choice for Home Improvement

The Team to Trust for Top-Notch Service
Schedule Your Free Consultation
Affordable Remodeling Solutions

Convenient Financing Plans Available

Home Upgrades for Less Than You Would Pay for a Cup of Coffee a Day

Explore Financing Options

“Chris was an absolute gem to work with and the window suggestions were perfect. The home was built in 1962 and had all of the old steel frame windows which were losing energy rapidly. We noticed an immediate change in the environment inside the house and the outside looks fantastic. Great installers.”

“Window replacement was for our elderly mother and the professionalism of the entire 1st Choice team, greatly appreciated by the family - we did not have to worry that mom was being sold a 'bag of goods.' Love the new windows! Noise reduction, energy efficiency, look, all just great!”

“I could not believe how fast they got the job done and how well done it was! They obviously were very careful about every detail. The house looks fantastic and everyone I talked to at the company was great to work with. The guy who did the inspection for the people who bought our house even asked us who did the siding because they did such a great job!”

Mastic logo
Milgard logo
Anlin logo
Crane siding logo
LP SmartSide logo
Simonton logo
BBB logo
Diamond Kote logo
Angie's List logo
Vesta logo