20 Best Window Companies in Glen Carbon, IL (2025 Reviews)
If you’re looking to upgrade to new windows, our list of the best window installation companies can help.
We analyzed all the top-rated window companies in Glen Carbon and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A guide on the best window installation companies in Glen Carbon may not seem like the most riveting article on EcoWatch, but trust us, windows have more of an impact on your life than you might think. Traditional or damaged windows can cost you in electricity bills. As a matter of fact, the Department of Energy estimates that about 30% of your home’s heat or cool air could be lost through your windows.
Luckily, saving you energy with efficient windows also helps our goals of reducing energy usage for the environment.
Efficient windows are of particular importance in Glen Carbon, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $313 per year.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Glen Carbon
The EcoWatch Reviews team assessed several window providers across Glen Carbon to narrow our list down to the top ones. The installers mentioned in this article passed our review standards for energy-efficient offerings as well as price, local expertise, customer service and beyond.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World offers windows expertise in Glen Carbon. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This window installation company has been in business since 1995 and currently serves 200 locations nationwide. The company has plenty of glowing reviews from customers online.
Window World may be the company for you if you want one that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Glen Carbon?Window World doesn’t have any pricing information listed on its website, but it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about the cost.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen offers the best availability in Glen Carbon. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been in business since 1995 and currently serves nearly every state except Mississippi and West Virginia. The company has plenty of glowing reviews from customers online.
Andersen may be the company for you if you want one that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Glen Carbon?Andersen doesn’t have any pricing information listed on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can ask for a free quote on its website for more information about the cost.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation offers the best residential windows in Glen Carbon. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This window installation company has been in business since 2006 and currently serves residents within 75 miles of its showrooms, which are in 13 states. The company has plenty of glowing reviews from customers online.
Window Nation may be the company for you if you want one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Glen Carbon?Window Nation doesn’t have any pricing information listed on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. You can ask for a free quote on its website for more information about the cost.
We’ve recommended installers with shining reputations, but note that some national companies have independently owned locations in Glen Carbon, so your service may differ depending on your local crew. We have tried to be unbiased and transparent by listing pros and cons for each company we reviewed.
More Window Companies in Glen Carbon
Renewal by Andersen
Maryland Heights, MOGood Customer Service
Price Transparency
Timely Service
Educational Website
Free assessment
Services Offered
Glass Doors
Double-Hung
Window Replacement/Installation
Bay Windows
Skylights
Champion Replacement Windows of St. Louis
Fenton, MOPrice Transparency
Free assessment
Good Customer Service
Services Offered
Double-Hung
Bay Windows
Window Replacement/Installation
Glass Doors
Window Nation
Overland, MOPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Vinyl Frames
Bay Windows
Window Replacement/Installation
Custom Window Designs
Glass Doors
Energy-Efficient Options
Double-Hung
Chaney Windows And Doors
Maryland Heights, MOEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Wood Frames
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
Vinyl Frames
Bay Windows
Colonial Construction
St. Louis, MOEducational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Gateway Door and Contracting
St Charles, MOFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Building Envelope Experts
Fenton, MOGood Customer Service
Educational Website
Free assessment
Timely Service
Price Transparency
Services Offered
Window Replacement/Installation
Custom Window Designs
Energy-Efficient Options
Double-Hung
Vinyl Frames
Glass Doors
Bay Windows
Windows Doors & More LLC
St Charles, MOEducational Website
Good Customer Service
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Home Comfort Exteriors
St Peters, MOPrice Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Butler Home Improvement
Collinsville, ILFree assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Quality Installation
Swansea, ILGood Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Glass Doors
Cardinal Contractors
St. Louis, MOGood Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
STL Windows and Doors
Earth City, MOPrice Transparency
Educational Website
Timely Service
Free assessment
Good Customer Service
Services Offered
Bay Windows
Window Replacement/Installation
Glass Doors
Double-Hung
Gateway General Contractors
O'Fallon, MOPrice Transparency
Educational Website
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
L&D Wilson's Siding & Roofing Inc
Lebanon, ILFree assessment
Price Transparency
Timely Service
Good Customer Service
Services Offered
Double-Hung
Window Repair
Window Replacement/Installation
Energy-Efficient Options
Lyons Glass Company
Alton, ILGood Customer Service
Price Transparency
Free assessment
Services Offered
Glass Showers
Tempered Glass
Glass Repair
Window Replacement/Installation
Glass Doors
Mirrors
Mills Window & Door Showroom
Fenton, MOFree assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Jacob Sunrooms, Exteriors & Baths
Fenton, MOFree assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Glass Showers
Fiberglass Frames
Vinyl Frames
Energy-Efficient Options
Glass Doctor of St. Charles, MO
St Charles, MOGood Customer Service
Educational Website
Price Transparency
Services Offered
Mirrors
Energy-Efficient Options
Window Replacement/Installation
Glass Showers
Glass Repair
Window Repair
Custom Glass
Tempered Glass
Glass Doors
Jones Home Improvements
Cottleville, MOGood Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Glen Carbon, IL using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Glen Carbon Saves You Money
Switching to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here's more information on how switching out your windows could benefit you:
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Decrease your carbon footprint: By using less energy once upgrading to energy-efficient windows, you’ll also be reducing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, particularly if you have an older home.
- Save on electricity bills: After you switch to energy-efficient windows, you can expect a reduction in your bills by about 12% because you’ll require less energy to heat or cool your home.
Estimated Cost of Window Replacement in Glen Carbon
Windows come in various shapes and sizes, so costs and services will vary considerably. Here are the average costs and services that you can find from window installation companies.
How Much Do New Windows Cost?
According to our research, the typical cost to install a single window is about $600. However, window replacement costs can range from $200 to $1,200 for each window. This is because the cost of window installations are based on a variety of factors specific to your home, such as the size, material and number of windows you need to replace, as well as where your property is located.
It’s important to keep in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars via returns on your energy bills. Investing in Energy Star certified windows can save Glen Carbon homeowners $313+ a year when replacing single-pane windows.
The cost of your window installation will also vary based on the kind of material you choose for the frames. Wood windows are typically the most expensive, but it depends on whether they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
In regard to window installations, in general there are two types that your installer will offer: full-frame and pocket installations.
Full-frame installations entail replacing the complete window, including the sill, frame and trim. Full-frame installations are necessary when you want to change the style of your windows or your window has significant damage. These installations are more involved and will increase the overall cost. Pocket installations (or retrofits) involve replacing a window within its existing frame, which makes pocket installations take less time and therefore cost less. But, if the frame has any rot or deterioration, you will most likely need a full-frame installation instead.
Your window installation company will be able to recommend the best type for your project. In Glen Carbon, the decision will mostly be based on the efficiency of your home and the age and condition of your existing frames.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Glen Carbon
EcoWatch differs from other reviewers since we evaluate these companies through a sustainability lens. We have assessed the top window installation companies in Glen Carbon mostly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Since this is a guide for Glen Carbon, we paid more attention to companies that serve the city. There are other reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Glen Carbon.
Work Quality
We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each company included on this list to ensure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don’t have nice feedback about their service from a certain installer, you won’t see it featured on EcoWatch.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing providers’ prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed, windows are a hefty investment, so you’ll want to make sure that investment is well protected. Window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for quite some time. Window installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Glen Carbon, IL Window Replacement FAQs
What is the average cost to install new windows?
The typical cost to install a window can range from $450 to $650. There are a variety of factors that influence how much it costs, which include the number of windows, local labor costs, your property’s location, how energy-efficient the windows are, styles and sizes of windows and the materials used in designing the windows.
What kind of window is the best for energy efficiency?
A window’s energy efficiency depends on a number of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are often the most energy-efficient since they are certified by the U.S. Department of Energy.
When do I need to use a window installation company?
You should use a window installation professional whenever you need to replace your windows. Installing windows is a complex process that can be difficult and time-consuming, so it’s best handled by the professionals.
When is the best time of year to replace windows?
Although you can install windows any time of year, warmer weather is typically better for installing replacement windows. Additionally, the weather should be dry, because rain can make the installation more difficult.