Infinity from Marvin Patio Doors

Choosing the Right Patio Door for Your Home

Too many of us hide our yards and balconies behind boring solid doors that close us off from the outside world. Instead of playing it safe, why not install patio doors? They pack a visual punch and really brighten up the interior of your home.

If you don’t have a clear vision of what you want, an exciting patio door project can go south quickly. You’ll want to keep the following things in mind as you shop around.

Tips for Selecting Patio Doors


Design is integral to making sure your patio door creates a seamless flow between your indoor and outdoor spaces and enhances your home’s architectural style. There are many different options out there.

  • Sliding doors slide open on a track. They’re perfect for smaller spaces because they don’t swing open into your furniture.
  • French doors have two panels that both swing open to reveal your gorgeous backyard view. Unlike sliding doors, French doors create a larger opening and allow unhindered movement.
  • Center-hinged doors have the sophisticated look of French doors, but only one panel opens. They work well in smaller spaces where French doors would hit furniture or close off the space.
  • Bi-parting sliding doors create a long span of window space. They work similarly to retail store doors, with two door panels in the middle that slide apart, creating an opening. Additional windows flank both sides.
  • Folding doors are a luxurious option for those who enjoy entertaining and have plenty of wall space. Multiple door panels slide and sandwich against each other like an accordion, allowing you to create an indoor-outdoor room.


The material you choose for your patio door can either add to or detract from the beauty of your home. You want to consider the durability of the material you choose, its ability to withstand the elements of your local climate and its resistance to moisture.

  • Wood is a timeless material that can evoke ruggedness or elegance depending upon the grain, stain and finish. While gorgeous, it is susceptible to warping and degradation with temperature fluctuation and exposure to moisture. It also needs to be refinished frequently to combat sun damage.
  • Fiberglass is an energy-efficient material that can be painted and textured to convincingly mimic wood. While it is one of the more expensive materials, it outperforms vinyl in nearly every area, including appearance, longevity, energy efficiency, strength and ability to withstand the elements.
  • Vinyl is a more affordable alternative to fiberglass and has some overlapping benefits, including low maintenance requirements and customizability. However, it is much easier to tell vinyl apart from wood than fiberglass. It is also more prone to warping and offers poorer insulation.
  • Steel is a unique choice that can give your door a sleek, modern look. Though steel is durable and provides stellar insulation, it can corrode and rust if the paint comes off. Some homeowners may find the temperature of the metal door uncomfortable in particularly cold or warm climates.
  • Aluminum is a more affordable metal material than steel. However, it is also lighter, less energy-efficient and more prone to staining, scratching and denting.


Window grids, also called grilles, can be inserted between panes or attached to the glass to add some artistic flair to your door. A well-chosen grid can complement the style of your home.

  • Colonial grids are a classic choice and divvy the glass up into smaller squares.
  • Diamond grids hark back to European design and can give your room a quaint, fairytale feel.
  • Prairie grids act like picture frames, running along the perimeter of the glass and crisscrossing in the corners.

There are countless grid options out there, including customized options. Don’t be afraid to make your patio door the stunning centerpiece of your living room or kitchen.

Privacy and Visibility

Though they’re a beautiful home addition, patio doors can make you feel like you’re on display. Still, you may be hesitant to cover up your brand-new door with curtains. In these instances, try one-way window film that blocks neighbors from seeing inside your home during the day, frosted glass or built-in blinds that rest between the panes of the door.

Energy Efficiency

Doors are weaknesses in your home’s structure that allow heat and air conditioning to escape outside, raising your energy bills. The sunlight that streams through your patio door also heats your home, which forces your air conditioner to work harder than it otherwise would if the door were solid. Choosing the right glass and door material will prevent heating and cooling loss and maintain the temperature of your home by providing a tight seal and reflecting the sun’s rays and infrared radiation. Consider low-E glass and door materials with good ENERGY STAR® ratings.

Find the Perfect Patio Door at Gravina’s Window Center of Littleton

Gravina’s Window Center of Littleton has been outfitting homes in the Denver metro area with high-quality patio doors for 45 years. We are a third-generation, family owned and operated business that cares deeply about each and every one of our customers. Our dedication to customer service and exceptional results even earned us a 2017 Angie’s List Superior Service Award.

We offer a wide variety of Marvin® patio doors made of sturdy and energy-efficient Ultrex® fiberglass. Ultrex is made of strong glass cables and resins capped with acrylic for long-lasting strength. Here are just a few of the ways Ultrex fiberglass is superior to vinyl:

  • Eight times stronger, allowing for smaller frames and larger windows
  • Resists warping in temperatures up to 285 degrees Fahrenheit
  • Topped with acrylic capping that is three times thicker than paint
  • And much more!

Our selection of Marvin patio door designs includes:

If you’re ready to embrace your outdoor space, call (303) 794-0490 to schedule your consultation and get your FREE quote today!

Vinyl and Fiberglass Window Replacements

Vinyl vs. Fiberglass Windows

Windows are a fundamental part of every home. Not only do they provide protection from the elements and allow sunlight into your space, but they also enhance your home’s aesthetic and could potentially raise its curb value. However, not all windows are created equal. Certain windows won’t provide the same benefits for every home, and each type of window comes with its fair share of pros and cons that homeowners should be aware of before making any major renovations or purchases.

Thinking of Replacing Your Windows? You Have Choices

There are plenty of window materials out there, 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, among others.


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 can closely mimic the appearance of wood windows. Vinyl windows, on the other hand, cannot be painted and tend to have a “plain” look.

Fiberglass windows also have more glass surface area than vinyl. This is because vinyl materials aren’t as strong, so more material is needed to construct the frame, resulting in less glass space. If more natural light and more versatile appearance options are important to you, consider fiberglass over vinyl.


Vinyl windows are more affordable because the material is less expensive and installation tends to be less labor intensive. Prices will always vary depending on the window size and installation job, but overall, you can expect to pay about 10 to 30 percent more for fiberglass windows than vinyl.

Part of the price difference is attributable to the fact that fiberglass windows must be professionally installed and cannot be purchased from a home improvement store. On the plus side, this should provide some peace of mind because you’ll be getting the best possible product as well as installation with an expert’s touch.


Home builders today commonly use vinyl windows because they’re more affordable, readily available, easier to install and nearly maintenance-free. Another plus is they’re often made of polyvinyl chloride (PVC) with ultraviolet light (UV) stabilizers, so they won’t fade in the sun or rust. Most vinyl windows should last up to 30 years on average.

Fiberglass windows are also very durable, with an estimated lifespan of about 50 years. Because the frame is reinforced with glass fibers rather than just plastic, fiberglass windows are more resistant to expansion and contraction in high or low temperatures, frame warp, and general distortion. Homeowners who choose to paint their fiberglass should know that they may have to re-paint it at some point if peeling occurs.

Energy Efficiency

Overall, both vinyl and fiberglass tend to be energy-efficient choices, especially when compared to outdated or damaged windows. However, the hollow frames and air gaps that can develop in vinyl windows make for less-than-ideal insulation. If contraction occurs in a vinyl window, gaps and seal leaks can develop and lead to window fogging and the buildup of moisture in between the panes. Fiberglass windows are better insulated and will not shrink or expand.

Resale Value

If you’re looking to add resale value to your home, you really can’t go wrong with either choice. A recent estimate pinned an ROI of 74 percent on vinyl windows.1 Less resale value data exists for fiberglass windows because they’re a relatively new product. However, many experts believe they will potentially have a more significant impact on resale value because of their durability, energy efficiency and versatile appearance.

And the Winner Is…

At Gravina’s Window Center of Littleton, we recommend our customers choose the Infinity from Marvin because it’s simply the best fiberglass window on the market. The Infinity’s Ultrex® fiberglass is tough, energy-efficient and completely customizable to fit your aesthetic needs. If you’re ready to make the upgrade to fiberglass windows in your Denver-area home, contact Gravina’s Window Center by filling out an online form to receive a FREE estimate today!



Replacement Windows in Denver

Top Signs It’s Time to Replace Your Windows

Whether your home is brand new or you’ve been living there for decades, the need for window replacement can arise at any time. People often wonder how they can tell when it’s time to replace their windows. In some cases, the signs are clear, while others can be difficult to detect, rendering the adage “if it’s not broke, don’t fix it” not very useful. In any case, it’s important you know what signs to look for so you can accurately determine when it’s time to replace your home’s windows.

Poor Appearance 

If your windows have accumulated moisture in between the panes, are faded, dim or discolored, it’s recommended you replace them. Though they aren’t necessarily broken, windows with a poor appearance can reduce your home’s value and often can’t be returned to their original clarity. Plus, if your windows experience heavy condensation, their seal is likely compromised, reducing efficiency.


Windows are designed to keep the outside from getting in. Over time, however, window shapes and structures can become damaged or misaligned, which allows drafts, moisture or even insects to infiltrate your home through naturally occurring gaps or cracks in the window.

They’re Outdated

For those who have older homes, remember that your windows age along with everything else. Not only do outdated windows often look tacky, but they have a greater chance of developing structural issues like warping or gaps. Keep in mind, the average window’s lifespan is just 15 to 30 years.1 Upgrading to modern vinyl or PVC energy efficient windows will also boost your home’s value tremendously and can put a stop to drafts and unsightly damage.

High Energy Bills

Have you recently noticed higher energy bills but were unable to pinpoint the cause? It may be your windows! Drafty, outdated or single-pane windows can drastically reduce your home’s energy efficiency by causing your HVAC unit to work much harder than it would need to if you had good windows. To decrease your energy costs, install windows with multiple panes, low-e coating and modern glazing. The U.S. Department of Energy estimates a low-e coating can reduce energy loss by 30 to 50 percent.2

Rotting Trims

Window trims, especially wooden ones, are highly susceptible to rot, deterioration, corrosion and other physical damage due to being constantly exposed to the elements. If you notice any kind of physical damage to your windows, it’s a good sign they need replacement. Not only does it look unsightly, but it could also negatively impact the window’s functionality or result in gaps and other structural issues.

Difficulty Staying in Place, Opening or Closing

If you’re having to use a lot of force to open or close a window, or it simply won’t stay in place, it’s usually a good sign the window needs replacing. Windows that don’t function properly are a safety issue if you can’t trust them to firmly shut and stay in place. Malfunctioning windows also causes poor efficiency. The increased force necessary to open or close a faulty window also increases the likelihood of cracking the glass or damaging frames.

You Want to Sell Your Home

Maybe your windows are in fine shape, but you’re planning on selling your home soon. That alone can be a great reason to replace your windows. It’s been calculated that new windows can increase a home’s asking price by nearly $9,000.3

You Can’t Sleep at Night

Are you a light sleeper? Do you live in a noisy area? Upgrading your windows is an excellent way to reduce the nuisance of outdoor noise from infiltrating your home. Rather than block out the sound, modern windows absorb the sound vibrations better than older or single-pane windows, reducing the overall noise level inside your home.

Window Replacement in the Denver, Colorado Area

Have you decided it’s time to replace those outdated or inefficient windows? To prevent these issues from resurfacing, it’s important you work with a trusted, professional window installer who will install a great product and do it the right way. At Gravina’s Window Center of Littleton, we’ve been providing window and door replacement services as a family-owned and operated business since 1973!

Contact us for a FREE estimate by filling out our online form or by calling 303-794-0490.





2018 Best of Colorado-Business Choice Awards

Colorado Biz Magazine has named Gravina's Window Center of Littleton one of the Top 50 Family-Owned Companies in Colorado for 2018



Top 50 Family-Owned Colorado Company

If supporting local businesses is important to you, you’re not alone. 60% of consumers report that they prefer to buy from family-owned businesses, according to Family Business Magazine.  Besides the economic advantages of retaining more dollars within the community as compared to purchasing from a national brand, other causes such as American entrepreneurship, providing better-paying jobs, helping local causes and even the prioritization of environmental sustainability is advanced right in your own backyard.

Family owned and operated window company since 1973

Family owned and Gravina's Window Center of Littleton has been a leader in the Denver remodeling scene for over 45 years.  In 2018 they were awarded the 2017 Angie's List Super Service Award, 2018 Best of Houzz, and now they can add "TOP 50 FAMILY OWNED COLORADO BUSINESSES" to their list of proud accomplishments.

Coming into their 5th decade, Gravina's Window Center of Littleton has become one of the most successful replacement window dealers in the country.   Their passion for home improvement and hard work has led Gravina's Window Center of Littleton to be named Infinity Window Dealer of the Year numerous times and are the United States oldest dealer of Infinity from Marvin as well.  Jim Gravina and his family are a Denver staple and continue to excel in home improvement in Colorado.

Gravina's Window Center of Littleton carries several different product lines for your home improvement needs. We represent the industry's finest window and door manufacturers: Infinity from Marvin, Simonton, Marvin Windows and Doors, Milgard and Therma-Tru as well as James Hardie siding.

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.

We take pride in the products we represent and ensure our customer's satisfaction throughout the duration of their home improvement project, and a Lifetime Warranty. - Jim Gravina



  • Infinity from Marvin Window Dealer of the Year 2016 and 2014.
  • Angie's List - 2017 Super Service Award
  • Angie's List - 2016 Super Service Award
  • Best of Houzz 2017 - Service
  • Best of Houzz 2016 - Service
  • Best of Kudzu 2017 Award
  • Better Business Bureau A+ Rating
  • EPA Lead-Safe Certified Firm
  • InstallationMasters Certified Installer


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