Infinity from Marvin Celebrates 20 Years

Over the past 20 years, Infinity from Marvin has provided homeowners with a fiberglass window replacement product and experience that exceeds all expectations.

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What are the Best Replacement Windows for Colorado?

Best Replacement Windows for Colorado

People always call us and ask how they can upgrade their old windows.  Usually, their window jambs are rotting, the weatherstripping is falling off, the glass is cloudy, or they have various other issues.  For these reasons, we believe Infinity from Marvin is the best replacement window for Colorado.  Colorado’s climate and UV equate to one of the most dramatic weather climates in the country – leading to the rapid deterioration of ordinary windows.  Fiberglass is not your average window material.  Marvin Windows patented Ultrex® pultruded fiberglass from Infinity.  Infinity won the JD Power Award for the Highest in Customer Satisfaction with the Window and Patio Door Manufacturer Brands category.

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Should I Pick Vinyl or Fiberglass Replacement Windows?


Choosing Between Vinyl and Fiberglass Replacement Windows: A Comprehensive Guide

You are not alone if you have difficulty deciding between vinyl or fiberglass replacement windows. Homeowners must consider a few essential things when choosing between vinyl and fiberglass windows, which is not always easy. Homeowners must assess strengths, durability, cost, aesthetics, and more. This article compares vinyl and fiberglass replacement windows, highlighting their pros and cons to help you make the right choice for your home, budget, and lifestyle.

Vinyl and Fiberglass Replacement Windows

When it comes to enhancing your home’s energy efficiency, aesthetic appeal, and overall comfort, selecting the right replacement windows is crucial. Two popular choices in the market, vinyl and fiberglass windows, each come with their unique set of advantages and considerations. In this article, we will compare the pros and cons of both options, empowering you to make an informed decision that aligns with your home, budget, and lifestyle.

Vinyl Replacement Windows: The Budget-Friendly Contender



Vinyl windows are often more budget-friendly than fiberglass alternatives, making them an attractive option for homeowners looking to upgrade without breaking the bank.

Low Maintenance

Known for their durability and resistance to elements like rot and corrosion, vinyl windows require minimal maintenance. They are resistant to peeling, fading, and warping, ensuring long-term aesthetics.


Vinyl windows offer excellent insulation, helping to regulate indoor temperatures and reduce energy costs. This can lead to a more comfortable living environment year-round.


Color Limitations

While available in a variety of colors, vinyl windows may have limitations when it comes to customization. Homeowners seeking a specific, unique shade may find their options somewhat restricted.

Structural Integrity

In extremely hot climates, vinyl windows may be prone to warping. Weather conditions in Colorado are a climate that can alter the shape and performance of vinyl windows within 2-5 years, making them a short term solution for your home.

Fiberglass Replacement Windows: The Premium Choice



Fiberglass windows, considered a composite window,  are exceptionally durable and resistant to warping, rotting, and corroding. They can withstand harsh Colorado weather conditions, making them ideal for our climate.

Strength and Stability

Fiberglass is known for its strength-to-weight ratio, providing windows with structural stability without compromising on aesthetics. This allows for larger, more expansive window designs with bigger daylight openings.


Fiberglass windows offer extensive customization options, allowing homeowners to choose from a wide range of styles, finishes, and colors. This makes them an ideal choice for those who prioritize design flexibility.



Fiberglass replacement windows are generally more expensive upfront compared to vinyl. However, many homeowners see this as a worthwhile investment due to the long-term benefits and durability.

Limited Availability

Although fiberglass windows are becoming more popular, they may not be as readily available as vinyl options in some markets. However, in Colorado, we are the oldest dealer of Infinity fiberglass windows.


The Bottom Line

You may not think much about window appearance – the whole point is to look through them, after all – but fiberglass and vinyl windows have some aesthetic differentiators worth noting. Fiberglass windows can be painted, customized upon purchase and closely mimic wood windows’ appearance. But if you want to paint vinyl windows, it’s not advised since they don’t hold paint well. They’re less stable than fiberglass and are more likely to warp.

Fiberglass windows are much more stable than vinyl ones, so they don’t need to be as wide. This means fiberglass frames have a smaller visible daylight opening- perfect for your home!  If more natural light and more versatile appearance options are important to you, consider fiberglass over vinyl.


Thinking of Replacing Your Windows?

Replacing your windows can be a great way to improve the look and feel of your home. Not only will your home look better, but you’ll also enjoy enhanced energy efficiency. If you’re thinking of replacing your windows, finish reading this article about fiberglass replacement windows. With these tips, you’ll be able to find the perfect windows for your home and get them installed quickly and easily! There are plenty of window materials, from vinyl to aluminum to wood. Perhaps the two most popular styles found on modern homes in the U.S. are vinyl and fiberglass. If you’re considering upgrading your windows soon, it’s fair to question which material will best fit your home. Some factors to consider are strength, durability, cost and energy efficiency.

In conclusion, the choice between vinyl and fiberglass replacement windows ultimately depends on your specific needs, preferences, and budget constraints. Assessing the pros and cons outlined in this article will guide you toward making a well-informed decision, ensuring your investment enhances both the beauty and functionality of your home for years to come.

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Why Should You Choose Infinity from Marvin Instead of Vinyl Windows?

Fiberglass Windows are Better than Vinyl Windows

Infinity from Marvin offers fiberglass windows that provide superior durability and tasteful aesthetics, making them an excellent choice for homeowners looking to replace their old, worn-out windows.

Stronger and more stable windows

Infinity from Marvin is the smart choice when it comes to windows. Here's why: Infinity from Marvin is made with Ultrex fiberglass, which is eight times stronger than vinyl and won't chip, fade, or crack. Infinity from Marvin also has a transferable warranty, so you can be confident that your investment is protected. Infinity from Marvin windows are designed, engineered, and assembled in the USA. So when you choose Infinity from Marvin, you support American jobs and businesses. Infinity from Marvin Windows is the clear choice regarding quality and value.



infinity from marvin ultrex frames



The Power of Ultrex Fiberglass

Ultrex is a window framing material that is known for its strength and durability. It is considered the strongest material in the replacement industry and is able to resist bending and flexing better than Fibrex® and vinyl. Its incredible strength allows for narrower frames to be built, resulting in more expansive and breathtaking views. Ultrex fiberglass is an excellent material that exceeds expectations in many ways.

•These windows are strong and designed to hold their shape.
• They expand and contract at the same rate as glass, which is 87% less than vinyl.
• Most vinyl windows can change shape in temperatures as low as 100-120° and can deform permanently at 140°, but Infinity from Marvin fiberglass windows will not distort in temperatures up to 350°.
• This also means that the seals on these windows stay strong, and the windows do not lose their shape or energy efficiency over time.


If you're thinking of getting new windows, we highly recommend going for Infinity from Marvin instead of vinyl windows. Trust us, you won't regret it. The difference in quality and durability is remarkable.


by windowsdenver Blog

Infinity from Marvin Diamond Partner


Gravina's Window Center of Littleton is proud to be an Infinity from Marvin Diamond Partner.

Based on our commitment to craftsmanship and consumer satisfaction, Infinity from Marvin selected Gravina's window center of Littleton for a premier partnership as a Diamond Retailer in 2002. Since then, we've improved thousands of your neighbors' homes with this amazing product and our professional, quality-focused installation process. If you value style, selection, incredible durability, and reduced energy bills, learn how Infinity from Marvin windows and doors surpass the competition on virtually every front.


Gravina's Window Center of Littleton and Infinity from Marvin Windows

Infinity from Marvin is a family-owned company as are many of its Infinity installing retailers, including Gravina's Window Center of Littleton. Both Gravina's Window Center of Littleton and Infinity share many of the same values: caring, trust, high standards, customer satisfaction, creativity, and service. Customers trust the Infinity and Gravina's Window Center of Littleton names because it means a quality product backed by service. The end result of this partnership is a total window experience for our customers.

Thank you to our loyal customers

"Gravina's extends a sincere thank you to all of our customers who have supported us and spread the word over the years.  Without our loyal customers, we would not be doing what we do, day in and day out.  We genuinely recognize our customers are the most critical part of our success." - Jim Gravina

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Gain Added Home Security with New Replacement Windows

Window and Door Security for Your Home

Regardless of the area in which you live, the possibility of burglary exists for every homeowner. According to the US Department of Justice, every 15 seconds, an American home is the site of a burglary. Typically, homeowners lose at least $4,000 in property damage or stolen goods. This is why even straightforward measures like updating your locks can help keep your home safe from burglars.

Regarding home security, replacing windows and doors is one of the best investments you can make. Not only do they add an extra layer of protection against intruders, but they also help to keep your home warm in the winter and cool in the summer. Locks and replacement windows are also a great way to deter burglars, as they provide a physical barrier that is much harder to bypass than a traditional door or window. In addition, replacing windows and doors can also help improve your home’s energy efficiency, saving you money on your energy bills. Whether you’re looking for better security or improved energy efficiency, replacement windows and doors are a great option.

Windows and doors in good condition provide an extra layer of protection that is much harder for burglars to bypass with traditional locks. In addition, you will also enjoy improved energy efficiency! So whether you’re looking to keep the bad guys out or make your home more energy-efficient, we’ve got the perfect window and door upgrades for you. Ready to get started? Give us a call today!


by windowsdenver Blog

What questions should I ask when buying replacement windows?

Here are some tips on what to look for when buying replacement windows

When it comes to replacement windows, there are a few key considerations you’ll need to keep in mind to ensure you’re making the best decision for your home. Here are four essential questions to ask when shopping for replacement windows:

1. What style of window do I need?
2. What is the window made of?
3. How much insulation does the window provide?
4. Are there any particular features or add-ons that I need?

What style of window do I need?
It depends on the window style you’re looking for and your budget. If you’re looking for a replacement window style, I recommend a double-hung window. They are very versatile and can be installed in almost any type of home.If you’re working with a limited budget, then I would recommend Vinyl windows. They are cheaper than other window styles, but they have oversized frames and are a short-term solution.  If you have more money to spend, I recommend fiberglass windows. They offer a classic look that can’t be beaten, and they are also very durable.

What is the window made of?
Replacement windows are typically made of either vinyl or fiberglass. Vinyl is a synthetic polymer made from ethylene and chlorine, while fiberglass is a more robust material with pultruded fiberglass fibers. Both materials are popular because they’re maintenance-free.

How much insulation does the window provide?
Replacement windows can provide a significant amount of insulation, depending on the window you choose. For example, a double-paned vinyl window can provide about R-5 insulation value, while a triple-paned window can provide about R-10. It’s important to note that while replacement windows can help improve your home’s insulation, they will only be effective if the windows are installed correctly and insulated correctly. Suppose you’re considering installing replacement windows yourself. In that case, it’s essential to consult with a qualified contractor who will be able to suggest the best type of window for your needs and ensure that the installation is done precisely.

Are there any particular features or add-ons that I need?
There are a few key features to look for when shopping for replacement windows. Energy efficiency is often a top priority, so make sure to look for windows with low-e glass and argon or krypton gas between the panes. Another important consideration is the frame material; vinyl, fiberglass, and wood are all good choices. Durability is also an important factor, so be sure to check the warranty before making your purchase. And finally, think about aesthetics; picking out the right style of window can really enhance the curb appeal of your home.

by windowsdenver Blog