Colorado Casement Windows

A classic window design that dates back centuries, casement windows make a stylish addition to homes of all sizes, ages, and styles. But just because these windows are timeless doesn’t mean they should be outdated! To maintain your windows’ effortless style while upgrading their energy efficiency and performance, count on the Colorado casement window installation experts at Bordner.

A leading provider of Colorado casement windows since 1987, we’ve earned a host of accolades and affiliations to give you confidence in our quality and service. We have:

  • An A+ rating and accreditation from the BBB
  • A ProVia and Infinity Platinum Retailer designation
  • An average satisfaction rating of 9.78 out of 10
  • Earned the Angie’s List “Super Service Award”—four times!

Long-Lasting Benefits of Our Colorado Casement Windows

At Bordner, we strive for total customer satisfaction with every CO casement home window we install, which is why we’ve partnered with reputable brands like ProVia and Infinity by Marvin. Specially designed by these industry-leading manufacturers, our replacement casement windows offer the best combination of durability, efficiency, and performance—plus functionality as well! Swinging outward with a gentle push and crank, our casement windows are simple to use and hassle-free to maintain.

Check out the many advantages of Bordner’s Colorado casement windows:

  • Advanced energy efficiency from multiple glass panes, weather stripping, insulation, and more
  • Strong weather resistance of durable vinyl or fiberglass frames
  • Memorable curb appeal and matching interior style with a range of frame colors and designs available
  • Long-term performance protected by lifetime product and workmanship guarantees

Schedule Your Free Casement Window Installation Quote Today

To learn more about our Colorado casement windows and many other designs, contact a friendly member of the Bordner team today. Give us a call to explore our various replacement windows and installation services, or sign up for a free estimate by filling out our quick online form now!

$850 Off Four or More Infinity Windows

To see why 97% of our customers would recommend us to family and friends, get in touch with us today!

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Our Remodeling Projects

When Colorado residents need remodeling services, we're there to help. Check out the many projects we've completed throughout the area.

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Why Choose Vinyl when Fiberglass is the Best?


  • Maintenance - Don't need to re-stain and can match any style, even wood!
  • Strength - Fiberglass is 8 times stronger than vinyl windows
  • Materials- Thinner frame so you won't lose any glass space!
  • Stability - Great at insulating for energy and noise control
  • Quality - Highest quality window in the market that lasts up to 50 years
  • Added Bonus: Lifetime Warranty


  • Maintenance - Vinyl can warp in heat, but can handle rapid temperature fluctuations
  • Strength - Easy to install and don't require consistent painting
  • Materials - While you can see "scar marks", vinyl is a more affordable option
  • Stability - Expands and contracts at higher rates, but generally long-lasting