Millennium Windows & Siding


Milgard Windows

Milgard is one of the largest, most trusted names in home windows, serving the Western U.S. and Canada with over a dozen full-service facilities and Customer Care Centers. We believe that by being close to our customers, we can provide you better service. This means faster lead and delivery time, as well as a quick response to any window warranty situations.

  • Milgard Tuscany Vinyl
  • Milgard StyleLine Vinyl
  • Milgard Fiberglass Windows
  • Milgard Fiberglass Windows with Wood Interior



  •  High-Performance Vinyl Siding from Norandex
  •  James Hardie is the #1 Fiber Cement Siding Manufacturer
  • LP® SmartSide® For Durability Plus the Beauty of Wood


  • Moving Glass Walls
  • Therma-Tru
  • Entry Doors


Our Crews Work Year-Round

New windows and siding are one of the best ways to improve the energy-efficiency and appearance of your home, so Millennium Windows & Siding won’t make you wait for warm weather for your installation to begin. Count on us to deliver precision installation all year long within a few weeks of completing the project agreement.

Millennium Windows & Siding


12090 W 50th Place
Wheat Ridge, Colorado 80033
United States

Serving The Denver Metro Area

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Additional Locations


  • Siding
  • Windows
  • Doors
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Mon - Fri 8am - 5pm Sat 8am - 2pm Sun Closed


1 Review
Morrison, CO
French Sliding Door

I am honored to write this review for our beautiful sliding door that was just installed. It all started with the idea of extending our back deck which is accessed by our kithen sliding door and that quickly turned into adding a french sliding door via our dining area that would reach where we are extending our patio to. We will be closing off the old sliding door and adding more cabinets/coutner space. We did a quick google search of sliding doors in Colorado and stumbled across Millenium. We filled out the contact form and immediately received a call and were set us up with an appointment. Tracy came to our our home with a catalog, she surveyed our area, we discussed what we were thinking and she assisted us with choosing a beautiful french door that was custom made to fit the window that the door was to replace. She took pictures and walked us through the whole process. She was a pleasure to work with and was so knowledable. Once the door was ready for install, contractors Sandro and Mauro were very professional and paid such close attention to detail, their installation work was flawless, you would never guess a window was in its place. The folks from Millenium, specifically Tracy and the contractors Sandro and Mauro were such a pleasure to work with. We are so thrilled with our new door, it is beautiful! We highly recommend Millenium!!

July 2018

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(720) 508-4385

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