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
    Fort Collins, CO 80525

    Showroom Hours

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

    6545 Gunpark Drive

    Boulder, CO 80301
  • Grand Junction

    565 25 Road
    Grand Junction, CO 81505
  • Casper

    849 CY Avenue
    Casper, WY 82601
  • Scottsbluff

    Showroom coming soon
    Scottsbluff, NE

Recent Reviews

What Our Customers Are Saying

Overall Customer Rating
4.6 / 5.0 based on 675 reviews
  • 5
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  • 5

    Love the look of the windows also they are very warm & draft Free

  • 5

    Cad and Tom consultant and installer are exceptional

  • 5
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  • 5

    These windows and doors improved our energy efficiency and reduced wind noise and other outside noises

  • 5
  • 5

    I can't believe how good the house feels--the old conditioner doesn't turn on until about 4 'o' clock when it's 80 degrees outside and it doesn't run very much. It's so easy to open a window now. We painted the trim white and it is fun to just sit and look at.