1st Choice Windows and Siding Service Areas



1st Choice Windows & Siding has been installing quality windows, doors, and siding for Colorado Residents in Parker, Highlands Ranch, Centennial, Aurora, Arvada, Littleton, Lone Tree, Denver, Castle Rock, and surrounding Denver areas since 1995. At 1st Choice Windows & Siding, we specialize in high-quality energy-efficient windows, siding, and doors at affordable prices. We pride ourselves on fair and accurate quotes that are right the first time, as well as quality workmanship and unmatched customer service. We cover the whole Denver Metro area, working with customers to make their house a cozy home.


When you contact us for replacement windows, doors, or replacement siding, our experienced team will set up a free in-home consultation, ready to find the right solution for you. We work with over 10 different high-quality manufacturers that offer an array of options to select the product that best fits your needs and the long-term love of your home. 1st Choice Windows & Siding proudly serves the following locations:



New windows, doors, and siding can add so much value to your home in both curb appeal and savings in energy costs. 1st Choice Windows & Siding offers a choice of multiple manufacturer solutions for whichever project you are embarking on replacement windows, replacement doors, or replacement siding. All purchases are backed by the manufacturer’s warranty and a 10-year installation guarantee. Our goal is complete customer satisfaction from estimate to installation, and we proudly have continual positive reviews and an A+ rating with the BBB. Our fully licensed professionals are on-call to help you with your windows, doors, or siding needs. See below some of our specializations:

Window Replacement

Replacement windows are one of the fastest and most cost-effective ways to add value, energy efficiency, and beauty to your home. If your windows are more than 15 years old, they may be failing to keep in the cool air in the summer and the heat you need in the winter. Drafty and sticking windows are the two most energy-draining costs on your energy bill. Replacing your windows with Energy Star-approved windows can save you UP TO 30% annually on your energy bills! We offer energy-efficient windows that can fit any budget or window size.

Door Replacement

Replacing entry and Sliding Patio doors brings beauty to the first impression and entry point to your home. We offer multiple options for side and patio doors as well as the main focal point of your home – the main entry front door. Replacing patio or entry doors are also a great option to bring in additional light into your home and make a statement in a room.

New Siding

New Vinyl Siding can bring a sharp elegance to any home and has many new advances that benefit your home. It’s fade-resistant, weather and insect proof, versatile, and customizable as the preferred choice for siding installation today. Vinyl siding is also low maintenance and can withstand up to 240 mile an hour winds. We also offer composite siding, which is the most common material used in replacement siding. It’s a durable, classic look, and easy to work with making it one of the more affordable options for replacement siding.


When you are ready to add value to your home in the form of energy-efficient Windows, Doors, and Siding projects. Proud to be family-owned and operated right here in Colorado, we offer free in-home consultations to assess your current home energy efficiencies and aesthetics that make your house a home, offering solutions that best fit your needs and budget. Call today at 720-580-3000 to schedule your free consultation for all your window and siding needs in the Denver Metro area including Arvada, Aurora, Centennial, Denver, Englewood, Highlands Ranch, Lakewood, Littleton, Lone Tree, Parker, Thornton, and Westminster. We look forward to serving you!

“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!”

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“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!”

“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.”

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