Infinity from Marvin Windows in Vail, Colorado

Gravina's Window Center of Littleton® has proudly served Vail Colorado since 1973, making us one of Colorado's top home improvement company. Our exceptional track record, which includes numerous successful projects and satisfied customers, and decades of industry knowledge set us above the competition. When it comes to siding, doors, and windows, look no further than the team at Gravina's Window Center of Littleton®.

When it comes to replacement windows, the choice is clear: Gravina's Window Center of Littleton® delivers the highest-quality products, the finest craftsmanship, and guaranteed installation. We are simply the Best Value on the market, ensuring that your investment in your home is not just a purchase but a wise decision. Read on to discover the value we can bring to your home. When you're ready for your next home improvement project, our team is here to help you get started.

Why Choose Infinity from Marvin for Your Vail Home?

Your home's windows are more than just a design element. They are a vital part of your home's energy efficiency. With our double-hung windows, you can enjoy a classic look that doesn't compromise energy savings. What sets our casement windows apart is their stylish design and easy-to-use crank systems, which not only enhance the look of your home but also provide better ventilation.

Transform your living space with a bay or bow window to invite in more natural light and enhance your panoramic views. Imagine cozying up to a window seat in your living area or enjoying a broader perspective from your dining room. Our team is ready to help you expand your home's footprint and create an open, spacious feel.

For customizable windows that embody low maintenance, turn to the team at Gravina's Window Center of Littleton®. With the enhanced quality of Marvin Windows, you can live comfortably and confidently. You can also embrace the superior performance of a fiberglass window with our Infinity from Marvin Windows and benefit from both form and function.

Our customers in Vail can enjoy the beauty of our products without sacrificing performance. Our luxury Ultrex fiberglass windows are not just tested for durability and precision but are engineered to withstand severe weather. You can enhance your home's look and functionality by replacing your old windows with various window options from our team. Casements, roundtops, double hungs, and more—our team can replace them all, giving your home a fresh, new look!

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Benefits of Infinity from Marvin Windows

You won't believe the strength of Ultrex® fiberglass! It's eight times stronger than vinyl and three times stronger than vinyl/wood composites. Ready to withstand fading, chalking, peeling, and cracking, Ultrex® offers unmatched durability. Our ongoing tests continue to prove that Ultrex® is the toughest window material out there.

Ultrex fiberglass - a pultruded fiberglass material

Premium Fiberglass Windows in Vail, CO

We know fiberglass windows are the best replacement solution for Colorado's Climate. But not just any fiberglass. Our Infinity from Marvin fiberglass window is made from ULTREX®, Marvin's Patent-Pending ULTREX® fiberglass, which is the strongest on the market.

Unmatched Durability of Ultrex®

Remember this: We don’t just claim that Ultrex® pultruded fiberglass is the toughest window material available; we prove it. Through various punishing tests in harsh conditions, Infinity windows made with Ultrex® come out on top again and again. Watch this video and see just how tough Ultrex® is!

Windows Built Green

Ultrex is made from silica sand – a safe and abundant natural resource. The Ultrex® manufacturing facilities fully comply with the 1990 Clean Air Act and are designated as a Maximum Achievable Control Technology (MACT) facility as outlined by the EPA.  Read more here

Read more about Infinity from Marvin's Sustainability here.

Ultrex Fiberglass

Ultrex pultruded fiberglass, a material patented nearly 25 years ago, has led the category in fiberglass windows and doors ever since Marvin pioneered it. Infinity Windows is dedicated to providing a durable, intelligent, long-lasting, and worry-free product.


Expert Window Installation Services for Summit County

Installation of your windows is a key component of your replacement window or door project. At Gravina's Window Center of Littleton, we understand that improperly installed windows can cause even the highest quality windows to underperform. Our technicians are knowledgeable, courteous, skilled, and dedicated to ensuring that your project exceeds your expectations. They are true craftsmen, easy to work with, and willing to work hard. Additionally, we hold the Installation Masters Certification, making us experts in various home applications.


Enhanced Attractiveness, Coziness, Security, and Long-Term Savings

Upgrade your Summit County home with Infinity Fiberglass Windows from Marvin and enjoy enhanced attractiveness, comfort, and security, along with long-term savings. Choose a durable and cost-effective solution over vinyl windows.


Infinity from Marvin Fiberglass is the Best Choice for Colorado Window Replacement

Infinity from Marvin Fiberglass is the best choice for replacement windows in Summit County. It offers unparalleled durability, energy efficiency, and timeless style. Engineered to withstand Colorado's harsh climate, these windows offer long-lasting performance and beauty for any home.


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