Expert Infinity from Marvin Window and Door Installation


Infinity from Marvin Replacement Windows and Doors


Gravina's Window Center of Littleton® is a window replacement company headquartered in Littleton and serving the Denver Colorado Front Range. We always offer a free estimate on new windows and doors. As an A+ Better Business Bureau Rated Company, family owned and operated Infinity from Marvin window replacement dealer. We constantly strive for excellence with outstanding installation in Infinity fiberglass window and door replacements.

Is it time to replace your windows?

Inefficient and drafty windows and doors affect your home in many different ways. With energy costs getting higher, it may be necessary now, more than ever, to invest in replacement windows.  Get your window and door replacement projects done professionally - by trusting the experts at Gravina's Window Center of Littleton®. We offer full-frame Infinity windows suitable for any home style, no matter when it was built! Our efficient process ensures the best quality finish while causing minimal disruption to your space. Enjoy a seamless experience from beginning to end — trust us with all your window upgrade needs!

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If you’re in Denver Colorado 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 - Made from Ultrex fiberglass.  With professional installation and a lifetime workmanship warranty, we do window replacement the right way.

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Infinity from Marvin Replacement Windows and Doors

Over the years, we have found that when homeowners insist on replacing vinyl windows, they are just putting a bandaid on their problem — an expensive one at that. Vinyl replacement windows expand and contract under Colorado weather conditions — making vinyl replacement windows challenging to open and close.  This warping and shifting affect their performance and durability.  Time and time again we see people needing their windows replaced again.  If they had only replaced them with a stronger window.  Infinity Windows created Ultrex fiberglass with one goal in mind: to develop the most durable window and door material in the industry.  It’s not only eight times stronger than vinyl — it resists expanding and contracting in Colorado weather. So you get a secure, snug fit that will endure. When customers choose Infinity from Marvin replacement windows, they know they will never have to worry about how they perform. Infinity from Marvin Windows with Low-E Glass and Argon meet Energy Star requirements. Backed by Marvin Windows, homeowners are getting windows that are "Built for Life!".  Infinity fiberglass windows are the most durable fiberglass replacement windows in the Denver market. 


Window and Door replacement made easier with Infinity from Marvin 

If you're starting to think about replacing your windows or are in the planning stages of your project, we can help you explore your options, answer any questions, or create a quote. It is the perfect window for your home. Replace your windows with Infinity from Marvin and breathe easy.

Infinity from Marvin Windows is Sold by Authorized Marvin Retailers Only





Why Choose Infinity Fiberglass Windows for your Home?

From patio doors to window replacement, choosing the best fiberglass windows is a no brainer.  Our Infinity fiberglass replacement windows and Infinity patio doors are designed to fit your project plans perfectly. You can count on each fiberglass window replacement to be durable, energy-efficient, and secure.  Available in a variety of sizes and shapes. As Infinity's oldest replacement window company in the country, Gravina’s Window Center of Littleton® offers the full line of Infinity from Marvin replacement windows. Made of Ultrex® fiberglass, Marvin’s patented pultruded fiberglass, Infinity windows combine the best strength, comfort, and energy savings on your utility bills for Denver homeowners.


What are Infinity Windows?

The Infinity Window is Marvin's fiberglass line of windows that offers various flexible and customizable replacement window and door options. Infinity windows are intended to replicate the look of standard wood windows and doors while affording contemporary features and low-maintenance performance.

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 installers like us that can offer an unparalleled level of support and expertise. Choosing and installing replacement windows properly involves a lot more than people can imagine. We work only with homeowners to find the best solution to beautify your home and improve the curb appeal.


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

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*With approved credit, special offers are not valid for previous customer orders and cannot be combined with any other discounts or previous special offers. Subject to credit approval. Not valid with other offers or estimates. Minimum purchase of (4) Infinity Windows. $500 off Infinity Patio Doors. Offer expires 2/28/23. *Discount applied by retailer representative at the time of contract execution and applies to purchase of  Infinity windows; and  Infinity patio doors.   Only Marvin, James Hardie and Provia product lines are eligible for the offer. Cannot be combined with other offers. To qualify for discount offer, initial contact for a FREE Window and Door Estimate must be made and documented on or before 2/28/23 with the appointment then occurring no more than 14 days after the initial contact. The Infinity window and door replacement experience. Financing available to qualified homeowners; not all customers may qualify; higher rates apply for customers with lower credit ratings: No interest payments for 0-24 months.  Interest accrues from date of purchase but waived if paid in full within 0 to 24 months. Any finance terms advertised are estimates only.



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Infinity Windows Installation Companies

Homeowners who desire new windows and doors can reap the benefits of working with professional Infinity from Marvin replacement window companies. Infinity window replacement experts offer experience, knowledge, and resources to help with the window installation process from start to finish. Experts in this field provide high-quality Infinity fiberglass window materials and expert installation for an impeccable transformation, giving homeowners renewed joy in their property's appearance.  Window replacement companies like Gravina's Window Center of Littleton have the tools and expertise to install new windows and doors efficiently. They are well-versed in window model types, shapes, sizes, and finishes, ensuring customers get exactly what they need for their remodeling project. Additionally, Gravina's Window Center of Littleton's Infinity window installation often guarantees customer satisfaction so you can purchase confidently.

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