CSR did an excellent job replacing our EIFS siding, soffits, and fascia. It was a real pleasure working with this contractor!
Derren D
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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Whether you're replacing outdated wood siding, upgrading to vinyl or fiberglass windows, or enhancing curb appeal with a new front door, we deliver expert craftsmanship and personal service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.
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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.
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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.
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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.
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- Other Services: Siding
Customer Reviews
See what our customers are saying — click any logo to read our reviews on that platform.
Cash and his guys did an AMAZING job, and were patient and flexible with me as I had to schedule a mason to do some repairs in between when CSR installed new trim/fascia and siding and when they painted everything. Cash was able to walk me through several options, and worked with my budget to ensure maximum visual impact. I am super happy, and my 130+ year old house looks a ZILLION times better—like a new house.
We used Colorado Siding Repair (CSR) to 1) repair specific exterior trim/siding water damage from poor builder design; 2) replace all exterior trim to avoid future issues from poor builder design; 3) repaint exterior; 4) add custom shutters to exterior; and 5) add gutters for improved protection.
I tried to contact several businesses to get quotes on this project, and most would not call me back, given the scope of work. But CSR was game and Cash was my first point of contact. Cash was informat... Read more
Emailed and called them for a repair estimate for wind-damage on siding. Seems like they don't repair a few panels. However, instead of simply saying no or ignoring my email and call (like others have done), they took time to send me couple of local handyman referrals who do small jobs like that. Greatly appreciate it!
Replaced siding on entire side of house! Excellent work done by Miguel and Marcelo and their female assistant. Just an amazing team. Project took three days and it was painted and all. The workmanship was incredible and they were so meticulous about every stage of the project. The product they used to replace the old Masonite siding that we had will last so long and is amazing! We highly recommend using this company. Cash , the owner and Keith, Karen and Katelyn were all amazing! Will use ... Read more
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.