Specialty replacement windows provide a unique touch to individual rooms or throughout your home. Create interest with triangle, circle top and arched windows. Renewal by Andersen specialty replacement windows are custom made to your exact specifications.

Renewal by Andersen of Northern Colorado and Central Wyoming is proud to serve the window replacement and patio door replacement needs of the Fort Collins, Boulder, and Grand Junction areas as well as Casper, WY and Scottsbluff, NE.

Our turnkey process begins with a call from you and includes a respectful in-home sales consultation, custom-manufacturing of replacement windows to precisely fit your home and installation by a dedicated team of professionals. Best of all, we stand behind our products and installation with one of the strongest warranties in the Northern Colorado and Central Wyoming window replacement business.

Acclaim & Accolades

Our Showrooms

  • Fort Collins

    5832 South College Avenue
    Suite A

    Fort Collins, CO 80525

    Showroom Hours

    Mon - Thurs: 8am - 7pm
    Fri: 8am - 5pm
    Sat: 10am - 2pm
  • Boulder

    6545 Gunpark Drive
    Unit 270

    Boulder, CO 80301
  • Grand Junction

    565 25 Road
    Grand Junction, CO 81505
  • Casper

    849 CY Avenue
    Casper, WY 82604
  • Scottsbluff

    Showroom coming soon
    Scottsbluff, NE

Recent Reviews

What Our Customers Are Saying

Overall Customer Rating
4.6 / 5.0 based on 566 reviews
  • 5

    Excellent product installed to look like original equipment in my home. An excellent job overall.

  • 5
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  • 5

    I love our new windows and their energy efficiency. Our installer was very quick and efficient at handling the installation by himself.

  • 5

    Excellent service - Excellent product !! Our home feels so much warmer .

  • 5
  • 5

    The sales rep knew exactly what would work best, he was very helpful and knowledgeable but put no pressure on us. The installation team was efficient, craftsmen at their work, gave helpful tips and cleaned up amazingly. The man who came to stain and coat the wood frames was meticulous in his work and clean up. He gave the windows a complete look. We replaced our window coverings so as to leave as much of the window unobstructed to allow maximum sunlight and natural view. The windows are beautiful!

  • 5