Bellwether Windows, Siding, & Doors of Colorado

See Our Work in Your Neighborhood

Click to interact with the map

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Whether you're replacing outdated wood siding, upgrading to vinyl or fiberglass windows, or enhancing curb appeal with a new front door, we deliver expert craftsmanship and personal service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.


Check out some important pages from our company's website:


Read what 190+ clients have said about our services:

Recent Work

2981 East 163rd Place,Thornton, CO, US

2981 East 163rd Place , Thornton, CO, US
2

6824 Olympus Drive,Evergreen, CO, US

6824 Olympus Drive , Evergreen, CO, US
4
  • Other Services
  • Other Services: Siding

Customer Reviews

See what our customers are saying — click any logo to read our reviews on that platform.

Miriam T — review for Bellwether Windows, Siding, & Doors
Miriam T
I highly recommend Colorado Siding and Repair. Cash was great to work with. He met me on time and spent a long time discussing the project and going over options. The quality of the siding is great and I've gotten a lot of compliments on how the house looks now. The whole team was communicative throughout the process and worked to accommodate my schedule. Paul went through everything with me on the final walk through to make sure I was happy and kindly had someone come back to put up my house nu... Read more
Bruce Kaiser — review for Bellwether Windows, Siding, & Doors
Bruce Kaiser
We have used Colorado Siding Repair on two separate projects to replace worn siding with weather resistant hardy board siding. They were timely and very complete with their recommendations resulting in outstanding results in upgrading our house wrapping, trim and flashing installation and paint work. I will use them again on future siding work.
Keegan Deignan — review for Bellwether Windows, Siding, & Doors
Keegan Deignan
Cash and the rest of the crew did an incredible job with my recent siding repair and paint job. I would highly recommend them to anyone looking for professional and reliable siding work. They communicated through every step of the process, and made sure I was happy with the work that was completed.
Anna Hamp — review for Bellwether Windows, Siding, & Doors
Anna Hamp
Cash, Paul, Katelyn, and the entire team at Colorado Siding Repair were professional, courteous, and responsive. Our most recent project was finished even faster than we had anticipated. Since we were on a tight budget, they worked with us to replace the siding on one side of the house at a time. We really appreciate their beautiful work (see before and after photos below) and can't wait to have them finish the last wall of our house soon.
Carri Stern — review for Bellwether Windows, Siding, & Doors
Carri Stern
I would give these guys 100 stars if I could! I am VERY, VERY picky about this kind of work being done on my house and I couldn't recommend them more highly! Cash was our sales rep and he never pressured me in any way. He presented all options to me equally and let me decide if I wanted to move forward and what level of siding to choose. One of our huge issues is that our 1970 house was roasting in the summer and freezing in the winter. He suggested that we put new insulation in as part of the p... Read more