Professional Window Replacement Services in Boulder, CO


Window Installation in Boulder

Discover why Gravina's Window Center of Littleton stands out as the top choice for window replacement in Boulder, CO. Our dedicated team is committed to providing exceptional service and ensuring customer satisfaction. As a family-owned and operated business with an A+ rating from the Better Business Bureau, we take pride in offering top-quality installation of Infinity fiberglass window and door replacements.




The Infinity from Marvin Advantage


  • Expands 87% less than vinyl – resists expanding and contracting in any climate
  • 8 times stronger than vinyl – protects the integrity of your home
  • Resistant to leaks, seal failures and stress cracks – all things that can affect energy efficiency


  • Ultrex’s fiberglass windows and doors strength delivers narrow profiles for expanded views and more daylight
  • Our proprietary acrylic finish is fade-resistant and virtually maintenance-free
  • We offer a complete collection of styles, features and options to complement any home


Our Window Replacement Process

Established in 1973, our family-owned company has revolutionized the window and door industry with our window replacement process. At Boulder, we offer top-quality replacement windows, exceptional customer service, and an unparalleled experience in window, door, and siding solutions.

Trust in Gravina's Window Center of Littleton

    Oldest Infinity from Marvin Window Dealer in Wheat Ridge
Partnering with Marvin Windows and Doors, we knew Infinity from Marvin had a special product over 20 years ago.

     Giving Back Since 1973
As a Family-run business we have given back to Wheat Ridge, and will continue to do so.

    Lifetime Warranty
Being in business as long as we have, we know homeowners need peace of mind when it comes to their home.


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How to Maximize the Value of Your Home with Infinity from Marvin Window

How to Maximize the Value of Your Home with Infinity from Marvin Window

Oftentimes, the price of windows is seen as the main factor in deciding on new replacements. However, opting for the cheapest option may not always yield the best return on investment. This is especially true in Colorado, where the climate and UV levels can be harsh and lead to rapid deterioration of ordinary windows.   …
Eco-Friendly Home Window Options

Eco-Friendly Home Window Options

At Gravina's Window Center of Littleton®, we understand the importance of selecting the right windows for your home. As premier Infinity by Marvin dealers, we offer expert guidance and top-quality residential window installation services in Denver and the surrounding areas. When it comes to eco-friendly home window options that are built to last, we have …

Our Promise and Values

Our family is committed to providing you with the best window replacement experience. We back it up with world-class Infinity Windows and Doors in-house installation.

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