Beautiful work! Great Service! I even had one issue with the paint and they came right out to my house to fix it in the same week! I Love how the new siding looks and Bellwether was great to work with.
Jamie Sacks
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Whether you're replacing outdated wood siding, upgrading to vinyl or fiberglass windows, or enhancing curb appeal with a new front door, we deliver expert craftsmanship and personal service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.
Check out some important pages from our company's website:
- Siding
- Windows
- Multifamily Siding Replacement
- Stucco Removal
- Insulation
- Decks
- Roofs
- Remote Sales Estimates
- Bellwether Referral Rewards+
- Exterior Design
- Free Online Quote
- Financing
- Blog
- FAQs
- About Us
- Contact
Read what 190+ clients have said about our services:
Recent Work
Customer Reviews
We were extremely pleased with our experience with Bellwether! From our salesman, Steve Dennis, to the front office personnel,Paul,Tanisha,and Karen, to the installers. They were all exceptionally knowledgeable, friendly and professional. They assisted with our dealings with insurance, project timing, and completion steps. Everyone was friendly and willing to work around our needs and schedule. As the City inspector left, he said "They did a great job for you." We can't agree more! Thanks... Read more
We live in Steamboat. We tried and tried to find a local contractor to re-insulate, instal new windows, and re-side our 120 year old mountain home. Couldn't get anyone locally to even return a phone call. My wife reached out to Bellwether and three days later we were meeting with their rep and planning our project. Within a month our remodel began. We were amazed by how quick, professional, and skilled the crews were. They tore off the old siding and insulation and removed the old windows... Read more
Bellwether was phenomenal. Cash came to the house in May after a large hail storm that damaged the vinyl on multiple sides. He spent over an hour talking with me, answering questions, and reviewing options. I said I didn't want a big beige house, and wanted to find a new, modernized aesthetic. He took my elementary ideas and ran with them, giving me a bid and first rendering in only a few days. We could tell from the visual rendering that it would be a stand-out house! Then it was about the proc... Read more
Pella windows are good quality...