Take a look at our past work!

Bellwether Windows, Siding, & Doors

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Whether you're replacing outdated wood siding, upgrading to vinyl or fiberglass windows, or enhancing curb appeal with a new front door, we deliver expert craftsmanship and personal service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

Our Work

1555 West Thomas Avenue , Englewood, CO, US
  • HardiePlank Select Cedarmill Siding
  • HardiePanel Select Cedarmill Siding: Boothbay Blue
  • Other Services
  • Other Services: Siding
  • HardiePlank Select Cedarmill Siding: Boothbay Blue
  • HardiePlank Select Cedarmill Siding: Evening Blue
  • HardiePlank Select Cedarmill Siding: Night Gray
  • HardiePlank Select Cedarmill Siding: Mountain Sage
  • HardiePlank Select Cedarmill Siding: Timber Bark
  • HardiePlank Select Cedarmill Siding: Aged Pewter
  • HardiePlank Select Cedarmill Siding: Iron Gray
  • HardiePlank Select Cedarmill Siding: Cobblestone
  • HardiePlank Select Cedarmill Siding: Gray Slate
  • HardiePlank Select Cedarmill Siding: Arctic White
  • HardiePanel Select Cedarmill Siding
  • HardiePanel Select Cedarmill Siding: Light Mist
  • HardiePlank Select Cedarmill Siding: Khaki Brown
  • HardiePanel Select Cedarmill Siding: Cobblestone
199 County Road 8038 , Fraser, CO, US
  • HardiePanel Select Cedarmill Siding
  • HardiePlank Select Cedarmill Siding: Rich Espresso
  • Other Services
  • Other Services: Siding
  • HardiePanel Select Cedarmill Siding: Rich Espresso
151 West Sycamore Lane , Louisville, CO, US
  • HardiePlank Smooth Siding
  • HardiePanel Select Cedarmill Siding: Primed
  • Other Services
  • Other Services: Siding
  • HardiePlank Smooth Siding: Primed
  • HardiePlank Select Cedarmill Siding
  • HardiePlank Select Cedarmill Siding: Aged Pewter
1029 North Garfield Avenue , Loveland, CO, US
  • HardiePlank Select Cedarmill Siding
  • HardiePanel Select Cedarmill Siding: Arctic White
  • Other Services
  • Other Services: Siding
  • HardiePlank Select Cedarmill Siding: Arctic White
5358 East Costilla Drive , Centennial, CO, US
  • HardiePlank Select Cedarmill Siding
  • HardiePanel Select Cedarmill Siding: Arctic White
  • Other Services
  • Other Services: Siding
  • HardiePlank Select Cedarmill Siding: Arctic White

Customer Testimonials

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Brad Carter - 1193 South Dudley Street , Lakewood, CO, US
Bellwether was a delight to work with starting with Cash Stricker. One of the original owners, actually has installed the Hardie Board Product. He could answer all my questions and provided an accurate, easy to understand estimate. The installers, Mario and Heberto worked with care and patience like they were working on their own home. All building codes for building wrap, rafter framing and flashing designs were followed ( I asked lots of questions during the renovation). The Painters and G... Read more
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Janet Garner - 9275 West 8th Avenue , Lakewood, CO, US
A few years ago we had siding put on and Bellwether was great so naturally when we needed to update some doors and put in a French door, we called on them again. *Amy was great from start to finish making sure we were up to date on planning and getting everything we needed. *Cole was great to work with throughout the whole process and really gave us a personal touch and made sure we got what we wanted. *Luis and his crew made sure we knew about issues they ran into and worked hard to fix everyth... Read more
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Martha Smith - 6367 South Ingalls Street , Littleton, CO, US
Cash and his team were great to work with. They were efficient and very responsive when I had questions. They replaces my original 1970's siding with Hardie Boy and I love the results. They were also very understanding as I waited for my HELOC to close. Goodbye barn red, hello modern grey that will last a lifetime!
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Casey Story - 6117 South Westview Street , Littleton, CO, US
I have nothing but positive things to say about our partnership with Cash, Paul, and the entire Bellwether/Colorado Siding Repair team. When we began the vendor evaluation process for the complete residing of our 1950's MCM home, we had a very particular idea of what we were hoping to achieve as an outcome. After sitting on the receiving end of multi-hour, in home sales presentations, including hard line negotiating and closing tactics from from 4-5 other vendors, we had all but given up on fi... Read more
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Andrea Lively - 3962 South Bannock Street , Englewood, CO, US
The best experience! I work in construction and am sad to say that most folks these days do not take any ownership, pride or responsibility. This was our experience when the contractor we had been working with on our major kitchen remodel decided he had not budgeted enough for the siding repair and didn't have anyone lined up so he just wasn't going to finish what we had contracted him to do. This left gaping holes in the side of our home and now was up to us to figure it out. We met with everyo... Read more