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Everything in your home has a lifespan, and your windows are no different. When your windows get too old or damaged, they don’t do their job. GS Exterior Experts offers professional window installation in Denver and surrounding areas.

Our goal is to ensure that you receive the best window replacements available in Colorado. This helps keep your home protected, insulated, and comfortable all year long.

We offer a wide variety of windows to fit your style as well as your budget from industry-leading manufacturers. Our friendly team will help you select the best style, material, and energy efficiency level for your needs.

Request a Window Replacement Estimate

Back of a home with large glass windows and doors

Why Replace Your Windows?

GS Exterior Experts has been serving Colorado homes since 1999, and we’re a family-owned and operated business. High-quality craftsmanship is our top priority in every project we take on, and we’re confident that you’ll love your new windows! Here are a few of the top reasons to replace your windows:

Energy Savings: Our windows are insulated to keep cold air out during the winter and hot air out during the summer. New windows can lower your energy bills.

Maintenance: Your new windows will resist the elements, resist scratches, and age slower than other materials. You won’t have to do hardly anything to keep your windows looking good and doing their job.

Durability: If your windows are old or damaged, they may not be able to withstand the harsh weather conditions that Denver experiences. Replacement windows are made with modern materials that are more durable and can better withstand extreme temperatures, strong winds, and heavy precipitation.

Aesthetics: Our windows are clean and beautiful, and they come in all sorts of designs and styles for you to choose from. From bay windows and sliding windows to geometric windows, we have whatever you need for your home’s aesthetic.

Home Value: The reason we recommend window installation is because it can help you compete with rising property values. Newer, more energy-efficient windows are attractive to potential buyers and can be a selling point when you decide to put your home on the market.

Noise Reduction: If you live in a busy neighborhood or near a noisy street, replacement windows can help reduce the amount of noise that enters your home. This can make your home more peaceful and comfortable, and can be particularly beneficial if you have young children or if you work from home.

Understanding Home Window Replacement

If you’ve decided that now is the right time to get new windows, it can be helpful to understand the process.

The first step is to have someone come out and evaluate the situation. We’ll take a look at your current windows, take measurements, and determine what replacement windows you’ll need. If you have single pane windows, we’ll talk about various upgrades and why.

From there you’ll select your replacements. This includes selecting a style, material, and features like energy efficiency.

Once we’ve determined what needs to be done, the Denver window installation can begin. This process starts with the removal of your old windows.

The new windows will be installed using a variety of methods, depending on the type of window and the existing frame. This may involve inserting the new window into the existing frame, or removing the old frame and installing a new one.

Finally, we’ll seal and finish everything to ensure it’s waterproof. Clean up and disposal of the old windows follows that.

This is the entire process of total home window installation in Denver. If you’d like to learn more, schedule a consultation today!

If you’re just curious, you can use our virtual design tool to start looking at windows right away!

Window Styles

There are plenty of window style options to meet your needs. Below are the most common window styles available.

Double Hung Windows

Double Hung Windows

A double hung can be opened from the bottom or lowered from the top. It also tilts in so you can clean your window from the inside of your home.

Single Hung Windows

Single Hung Windows

With a classic appearance, single hung windows can be raised from the bottom to allow air flow, while the top part remains stationary. All windows are available in custom sizes to suit your needs.

Sliding Windows

Sliding Windows

Easy to use, slider windows glide open from either the left or right and provide a wide view of your outside landscape.

Casement Windows

Casement Windows

A great window for the hard to reach areas of your home, casement windows have a crank operating system, making it easier to operate, while allowing maximum airflow.

Awning Windows

Awning Windows

Hinged at the top and designed to open outward, awning windows provide additional airflow to a room. They open and shut easily with the turn of a handle.

Sliding Windows

Bay or Bow Windows

Add dimension to your home with a bay or bow window. These windows project outward, creating a stunning visual display. A bay window can also add seating inside your home.

Picture Windows

Picture Windows

The most energy efficient of all windows, picture windows come in a variety of shapes and sizes, so they can fit any space in your home.

Geometric Windows

Geometric Windows

With geometric windows, you can design a unique look to add character to your home. Use these windows to create a focal point in your home or add more light to an area.

Garden Windows

Garden Windows

Enjoy flowers and plants year round with garden windows. These windows project outward and provide space for foliage, photos or décor.

Window Materials

GS Exterior Experts offers replacement windows in vinyl and fiberglass. Not sure what material is right for your home? Contact us today for a free estimate. Our team of experts is happy to help you decide.

Fiberglass Windows in a kitchen


Fiberglass is one of the best insulators among window-frame materials.

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Vinyl Windows in a home entrance


Vinyl windows are designed for durability, requiring virtually no maintenance.

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Customer Testimonials
We are very pleased with the great work GS Exteriors did for us. We needed everything done: windows, insulation, siding, and gutters and they handled everything.—Michelle W.
Serving the Greater Denver Area Contact us today to discuss your project. We look forward to working with you.
GS Exterior Experts
9083 W. Peakview Drive, Unit 2Littleton, CO 80123
1847 W 52nd Ave, Denver, Unit C,
CO 80221
(720) 683-6288 [email protected]
Monday-Friday: 8:00AM–6:30PM
Saturday: 8:00AM–12:00PM
Sunday: Closed