Gravina's Window Center of Littleton is a family owned company serving the Denver Metro Area for 45 years.  As a well-established company, we continually strive for excellence with outstanding service in window and door replacements.

Infinity by Marvin Replacement Windows

Infinity from Marvin Windows Logo   Marvin Windows and Doors Logo   Therma-Tru Doors Logo   ProVia Logo   James Hardie Siding Logo

denver colorados most trusted window company

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 windows will make a room stand out like never before. There is also the benefits of energy efficiency and durability. 

With energy costs continually fluctuating, it may be important now, more than ever, to invest in the perfect replacement window, Infinity from Marvin.  Do it once and never have to do it again.

We are America's Oldest Infinity from Marvin Window Dealer!

Need Replacement Windows?
 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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How About A New Patio Door?

Sliding Patio Door



When it comes to patio doors, we offer our customers the best choices. Our collection of sliding patio and french doors is purposefully designed to help make a home that's distinctively yours.  No matter your taste, energy efficiency needs, or desires, we will find you a door that's just right.

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Does Your Home Need A New Front Door too?

Entry Doors



Ranked one of the top remodeling projects a homeowner can undertake regarding return on investment, selecting a front door is a fundamental part of designing your home's overall aesthetic.  We have what you want.

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A family tradition since 1973.

Gravina's Window Center of Littleton is a Family Owned and Operated Window Replacement Company for Over 45 Years, Built on Family Values.

America's Oldest Infinity from Marvin Dealer

Gravina’s Window Center of Littleton proudly offers Infinity from Marvin fiberglass replacement windows. Made of Ultrex®, Marvin’s patented pultruded fiberglass, Infinity Windows combine the best strength and energy efficiency for Colorado homeowners.



Why are we partnered with Marvin Windows?

The value of any Marvin® window or door goes far beyond the quality of its materials and construction. Marvin windows and doors are built to last, and function as beautifully as the day they were installed, long into the future. Each piece is crafted with wood interiors and exteriors that feature wood or durable, long-lasting extruded aluminum cladding. The same effort and attention to detail that we put into crafting our exceptional products, we put into providing the highest quality customer service. There’s a reason you won’t find Marvin windows and doors in the big box stores. It’s only through dedicated independent dealers like ourselves that are able to 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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