CO Siding replaced my siding and painted. They did an excellent job. Cash is very thoughtful and detail oriented and it shows in the end result. We are thrilled with how the project came out.
A W
See Our Work in Your Neighborhood
About Us
Based in Denver, we proudly serve the greater Colorado Front Range and mountain communities, including cities such as Aurora, Boulder, Colorado Springs, Fort Collins, and surrounding areas, even reaching into Cheyenne, Wyoming.. Reach out to us if you’d like a consultation, (303) 323-8578
About Us
At Bellwether, we’re Colorado’s top-rated exterior remodeling company specializing in fiber cement siding, energy-efficient window replacement, and custom entry doors. As the #1 James Hardie siding installer in Colorado, we help homeowners protect and beautify their homes with durable, weather-resistant materials built for Colorado’s unique climate.
Whether you're replacing outdated wood siding, upgrading to vinyl or fiberglass windows, or enhancing curb appeal with a new front door, we deliver expert craftsmanship and personal service every step of the way. Our award-winning designs and certified installation teams ensure long-lasting value and stunning results.
We’re proud to serve the Front Range and beyond, helping families fall in love with their homes again.
Learn More About Us
Siding Installation
As a James Hardie Alliance Elite certified contractor and one of Denver's most trusted siding specialists, we install fiber cement, wood, composite, vinyl, and metal siding across the full Front Range of Colorado, with a pre-construction meeting unique to Bellwether that gives you a clear and detailed scope before a single panel goes up, backed by a 30-year product warranty, 15-year finish warranty, and a 100% satisfaction walkthrough at the end of every project.
Learn More
Window Replacement
We install full-frame replacement windows across Denver and the broader Colorado market using vinyl, composite, fiberglass, and wood-clad options selected for Colorado's altitude, UV intensity, and rapid temperature changes, with double-pane low-E coated glass as our standard recommendation and triple-pane available for noise reduction in high-traffic areas, all installed by long-time Colorado residents who understand how the climate affects both windows and the siding around them.
Learn More
Multifamily Siding Replacement
We specialize in large-scale multifamily siding replacement across Colorado, managing everything from local approvals and color coordination across units to new sheathing, weather barriers, and full installation, using durable materials built for Colorado's climate and backed by a 30-year product warranty and 15-year finish warranty, with 3D and HD renderings available so HOA boards and property owners can visualize the transformation before a single panel goes up.
Learn MoreRecent Work
2981 East 163rd Place ,Thornton, CO, US
6824 Olympus Drive ,Evergreen, CO, US
Installing new siding can significantly enhance the appearance and durability of a home. Here in Evergreen, CO, our team at Bellwether Windows, Siding, & Doors is skilled at providing top-notch siding services to protect properties from harsh weather. Our focus is always on delivering quality installations that add value and beauty to the client's home. By choosing us, customers benefit from a seamless process and end results that stand the test of time.
- Other Services
- Other Services: Siding
Customer Reviews
See what our customers are saying — click any logo to read our reviews on that platform.
Everyone at Colorado Siding was great from the field team of Cash and his crew to the office of Kari and Karen, we had a great experience with Colorado Siding and would highly recommend. They are very transparent, communication is great, and they are available and responsive. The finished product looks great. 5/5 stars earned.
To update our 75 year old house, we wanted new siding accent walls, a new window, and paint. We have worked with many contractors for renovation and landscaping, so we know how quickly things can go wrong. We were therefore *very impressed* with Colorado Siding Repair, from the initial bid process, through the design, delivery, and final result. They are very professional, personable, and skilled. The crew who did the work showed up on time, paid attention to details, did great work, and were ha... Read more
Colorado Siding Repair replaced the siding on our entire house with James Harding siding and did a fantastic job. Stephen worked with us through the whole process to plan the project and configure the job the way we wanted; the computer-assisted drawings really helped us make some important decisions and be confident that we would be happy with the outcome. Everyone was so professional, competent and friendly. Thank you CSR!
Removed our swamp cooler on side of the house. Put in new siding which matched our old siding exactly and painted it. Can't tell the hole for cooler was ever there. Did a fantastic job!
Frequently Asked Questions
Denver homeowners choose us because we offer award-winning design and installation services, backed by decades of experience and numerous industry certifications. Our commitment to quality is reflected in our A+ BBB rating and our reputation as Colorado's #1 James Hardie siding installer.
We offer a comprehensive range of services in Denver, including siding installation, window replacements, and door installations. Our expert team is trained to provide high-quality craftsmanship that enhances your home's exterior.
Yes, we offer financing options to help Denver homeowners achieve their dream exterior renovations. Our flexible plans make it easier to invest in your home's future without breaking the bank.
We are deeply committed to the Denver community, providing high-quality exterior remodeling services that homeowners can trust. Our team is local, and we understand the unique needs of homes in this area, ensuring every project meets Colorado's specific climate challenges.
Bellwether stands out in the Denver market due to our award-winning designs, expert installations, and strong manufacturer partnerships, such as our status as a Pella Platinum Certified contractor. Our focus on quality and customer satisfaction sets us apart.