Marvin Windows - Making your window replacement easier

Replacing windows and doors can seem stressful—but it doesn't have to be. Whether you're unsure if you need to replace or wondering what to do next, we're here to help you understand each step and make your replacement project a success.

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Windows and Doors Built for You and Your Home

If you need to replace your windows and doors, we're here to help. Our consultative approach makes the window replacement process more comfortable.


Why Choose Marvin?

When it comes to windows, you want window and door experts.  That’s why Marvin Windows and Doors are only sold at local, trusted, independent dealers — not big box stores. Marvin never compromises on quality - offering unparalleled value, energy-efficiency and expert craftsmanship. When you create some of the world’s best windows and doors, you won’t let just anyone sell them.

Marvin Windows

Designed for unparalleled performance and exceptional aesthetics, we offer window options for every style of home in any environment from a traditional double-hung and single-hung window to European-style tilt turn and hopper windows to casements. Marvin windows also are available in industry-leading sizes, countless style options, high-quality material options. All of this combined gives Marvin window dealers the ability to design the right form and function for residential replacement needs.

Marvin Doors

Marvin created their doors to maximize the connection to the environment in any living space. Three Marvin Door Collections give architects, designers, and homeowners design flexibility. By offering more styles, more high-quality material options, and more interior and exterior finish selections. So whether it's appearance or performance, style or size, design, or function, that guides your project's design, with the Marvin Doors the possibilitoes are endless.
If you’re just starting to think about replacing your windows or are in the planning stages of your project, we can help you explore your options and designs, answer any questions or create a quote.  As the oldest Marvin Dealer in Denver, we know the benefits of having exceptional windows in Colorado.

We represent the industry's finest window and door manufacturers: Marvin Windows and Doors, Infinity from Marvin, Provia Doors, and Therma Tru Doors.

Our in-house installation crews are the best in the business, certified by InstallationMastersUSA, and have the craftsmanship and know-how to transform your house into the home you deserve. Licensed, Insured and EPA Lead Certified. We take pride in the products we represent and ensure our customer's safety throughout the duration of their home improvement project.

Some Benefits of Marvin and Infinity Replacement Windows:

Reduce your monthly energy usage.
Improve your home’s comfort and beauty while adding value to your home.
Gain peace of mind with additional security from newer window technology.
All while being GREEN at the same time. Protect our environment now and for future generations.


Our comprehensive warranty provides peace of mind so you can enjoy your windows and doors for years to come.

Decades of Real Window Replacement Experience

Contact Gravina's Window Center of Littleton and get your FREE Marvin Window consultation scheduled. Free Written Estimates.


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

Specializing in Marvin Windows and Door Replacement since 1973