Proudly serving the

Colorado Area

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  • Fully Licensed and Insured
  • BBB - A+ Rating

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Free Window Replacement Quote

Layne S.

The process was so smooth thanks to his skill, attention to detail and incredible customer service. They were there to walk us through the entire process. Our house looks amazing and I was stress free the entire time. Thank you!

  • Integrity First
  • Five Star Google Rating
  • Fully Licensed and Insured

How It Works

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✔ No hassle/pressure quote

✔ Products made in the USA

✔ Lifetime Warranty

✔ Factory trained installers

✔ Financing Available

✔ A+ Rated by the BBB

✔ Twenty Years Experience

✔ Over 10,000 Installations

Windows Installation and Replacement

Our Window Replacement Service is budget friendly

If you are looking for a local Colorado window contractor to provide you with replacement windows or window installation, look no further.


Mile High Windows and Siding is your trusted source for local windows and siding needs. We serve Denver metro (including Aurora, Englewood, Highlands, Five Points, Arvada) and Denver South (Highlands Ranch and even Parker), and the I-70 corridor (Frisco, Breckenridge, Vail, etc.). We will pair you with our BBB A+, five star on Google Windows and Siding expert to book an appointment for a free windows estimate.


When your home's windows are older than 15 years old, you will have common and avoidable problems like windows that stick, drafts, and worst of all, skyrocketing electricity bills.


Window replacement is the sensible choice to remedy those issues while bringing a clean appearance to your home! Updating and replacing your home windows with Energy Star approved home windows can save as much as 30% in 12 months of paying your electricity bills, as well as increasing the property value of your most important asset - your home.


Our energy green home windows are available in many different patterns and shapes to suit any price range or appearance, at the same time as saving you money in the end!

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Proudly Serving the Colorado Area

Proudly serving Colorado since 2012