Denver's Oldest Infinity from Marvin Dealer


Gravina's Window Center of Littleton is a family owned company serving the Denver Metro Area for 46 years.  As a well-established window company, we continually strive for excellence with outstanding service in fiberglass window and door replacements.

Infinity by Marvin Replacement Windows

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Your home is your most significant investment, so why would you put cheap replacement windows in it?


When customers choose Infinity from Marvin replacement windows, they are getting windows that are "Built for Life!" Infinity fiberglass windows are the strongest fiberglass window on the market.

With energy costs getting higher, it may be necessary now, more than ever, to invest in energy efficient windows.  Infinity from Marvin windows with Low-E Glass and Argon meet Energy Star requirements.  It is the perfect window for your home.  Do it once and never have to do it again.

 Double Hung Replacement Window



If you’re in the Denver Metro area and need replacement windows, we can help. From replacing full frame windows to insert window installation, Gravina’s Window Center of Littleton has you covered.  We offer the best fiberglass windows on the market, Infinity from Marvin.  With professional installation and a lifetime workmanship warranty, we do window replacement the right way.

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A family tradition since 1973.

Gravina's Window Center of Littleton is a Family Owned and Operated Window Replacement Company, Built on Family Values Since 1973

America's Oldest Infinity from Marvin Dealer

As Infinity's oldest window retailer in the country, Gravina’s Window Center of Littleton offers the full line of Infinity from Marvin replacement windows. Made of Ultrex®, Marvin’s patented pultruded fiberglass, Infinity windows combine the best strength and energy efficiency for Colorado homeowners.




Infinity Product Catalog

Options and sizing for Infinity windows and doors.

(40 pages)



Partners with Infinity from Marvin Windows and Doors

The value of any Infinity from Marvin® window or door goes far beyond the quality of its materials and construction. Infinity windows and doors are built to last, long into the future.  There’s a reason you won’t find Infinity from Marvin windows and doors in the big box stores. It’s only through independent window dealers like us that can offer an unparalleled level of support and expertise. We work directly with homeowners to find the best solution to make your dream a beautiful reality



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Don't forget to ask about our current offers financing options for replacement windows and doors!

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