22 Best Window Replacement Companies in Mascoutah, IL (2023 Reviews)
Window Companies Near Me
Looking to replace your windows? We've got you covered in this list of the best window installation companies.
We analyzed all the top window installers in Mascoutah and selected the top 22 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated May 04, 2023
Why you can trust EcoWatch
A guide on the top window replacement companies in Mascoutah may not seem like the most compelling article on EcoWatch, but trust us, windows have a more direct impact on your life than you might think. According to the Department of Energy, heat or cool air lost through outdated, drafty windows could account for 25-30% of household energy climate control usage.
Installing new, efficient windows on your home can help you save money every month on your electricity bills — and you can help the environment, too.
Because windows are so important for your home, selecting the right company for you is a big choice to make. That's why the EcoWatch team has put together this list of the best window replacement companies, so you can more easily make an informed decision.
Best Affordability
Window World
- Low prices relative to competitors
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Manufactures products in-house
- Member of US Green Building Council
- More expensive than competition
Best for Residential Windows
Window Nation
- Custom designs
- Wide variety of products and services
- Manufactures products in-house
- Installation not covered by warranty
Best Window Replacement Companies in Mascoutah
The EcoWatch team examined dozens of providers that service the Mascoutah area to find the best window installation companies by our standards. The installers mentioned in this article scored best in our review categories, such as energy-efficient offerings, price, customer service, local expertise, availability and more.

Window World
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Low prices relative to competitors
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Large serice area
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EnergyStar Partner
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Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. This provider has 27 years of experience in the windows business, and it has become one of the best companies in Mascoutah. The company has a lot of glowing reviews from customers on online review websites.
If you're looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, this may be the perfect company for you.
Energy Efficiency of Window World WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Window World cost in Mascoutah?Prices aren't available on Window World's website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to ask for a free quote from the company.

Renewal by Andersen
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Great industry reputation
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Manufactures products in-house
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Member of US Green Building Council
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window industry for around 27 years. The company has a lot of glowing reviews from customers on online review websites.
It has established itself as a company 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want 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 Mascoutah?Prices are not available on Andersen's website because the cost of window replacement varies greatly based on how many and what type(s) of windows you need. However, 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
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Custom designs
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Wide variety of products and services
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Manufactures products in-house
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Installation not covered by warranty
Window Nation offers the best residential windows in Mascoutah. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window installation business for around 16 years. Hundreds of positive reviews from customers online back the company's reputation.
Window Nation may be the company for you if you're interested in 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's commitment to sustainability shows in its energy-efficient window offerings. 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 Mascoutah?Window Nation doesn't have any cost information available 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 inquire about a free quote on its website for more information about the cost.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has been in the window industry for about 20 years.
You may want to consider picking Universal if you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Mascoutah?Universal does not mention prices on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. If you'd like to know for sure, you can receive a quote on the company's website.
We strive to stay unbiased and transparent by including pros and cons for every company. Additionally, any partnerships do not affect our rankings.
More Window Replacement Companies in Mascoutah
Penny Window
St. Louis, MO-
Timely Service
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Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Bay Windows
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Energy-Efficient Options
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Glass Showers
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Sliding Glass
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Tempered Glass
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Custom Window Designs
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Residential Windows
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Double-Hung
Two Blind Guys
Des Peres, MO-
Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Custom Window Designs
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Stained Glass
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Bay Windows
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Sliding Glass
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Aluminum Window Frames
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Commercial Windows
Chaney Windows And Doors
Maryland Heights, MO-
Good Customer Service
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Award-Winning
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Sliding Glass
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Energy-Efficient Options
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Bay Windows
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Double-Hung
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Stained Glass
Window Nation
Overland, MO-
Educational Website
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Free assessment
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Price Transparency
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Award-Winning
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Good Customer Service
Services Offered
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Double-Hung
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Stained Glass
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Custom Window Designs
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Bay Windows
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Sliding Glass
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Energy-Efficient Options
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Glass Showers
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Residential Windows
Empire Supply Co
St. Louis, MO-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Energy-Efficient Options
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Commercial Windows
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Glass Showers
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Sliding Glass
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Double-Hung
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Custom Window Designs
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Tempered Glass
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Aluminum Window Frames
Masonry & Glass Systems Inc
St. Louis, MO-
Free assessment
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Educational Website
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Good Customer Service
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Award-Winning
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Price Transparency
Services Offered
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Double-Hung
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Custom Window Designs
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Stained Glass
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Bay Windows
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Sliding Glass
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Residential Windows
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Glass Showers
Gallagher Bros Construction
St. Louis, MO-
Free assessment
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Price Transparency
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Good Customer Service
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Timely Service
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Educational Website
Services Offered
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Custom Window Designs
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Fast Delivery
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Glass Showers
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Double-Hung
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Full-Service Installations
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Commercial Windows
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Residential Windows
Triton Exteriors
St. Louis, MO-
Timely Service
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Award-Winning
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Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Custom Window Designs
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Glass Showers
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Double-Hung
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Commercial Windows
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Fast Delivery
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Residential Windows
Mr. Handyman of Central St. Louis County
Maryland Heights, MO-
Award-Winning
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Good Customer Service
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Free assessment
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Timely Service
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Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Double-Hung
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Glass Showers
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Commercial Windows
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Stained Glass
Home Services at The Home Depot
Brentwood, MO-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Bay Windows
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Glass Showers
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Fast Delivery
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Commercial Windows
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Stained Glass
STL Windows and Doors
St. Louis, MO-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Custom Window Designs
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Double-Hung
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Bay Windows
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Sliding Glass
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Residential Windows
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Commercial Windows
Glass & More Inc. Low price glass repair!
Belleville, IL-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Glass Showers
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Sliding Glass
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Commercial Windows
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Custom Window Designs
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Double-Hung
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Residential Windows
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Full-Service Installations
Kirkwood Glass Co
Kirkwood, MO-
Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Full-Service Installations
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Double-Hung
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Tempered Glass
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Fast Delivery
STL Design and Build
Maryland Heights, MO-
Timely Service
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Free assessment
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Award-Winning
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Glass Showers
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Double-Hung
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Fast Delivery
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Custom Window Designs
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Residential Windows
Crystal Windows & Door Systems
Fenton, MO-
Timely Service
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Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Double-Hung
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Energy-Efficient Options
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Aluminum Window Frames
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Glass Showers
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Fast Delivery
Building Envelope Experts
Fenton, MO-
Free assessment
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Price Transparency
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Timely Service
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Good Customer Service
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Educational Website
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Sliding Glass
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Double-Hung
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Custom Window Designs
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Residential Windows
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Bay Windows
Martin Glass Company
Belleville, IL-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
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Award-Winning
Services Offered
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Sliding Glass
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Custom Window Designs
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Glass Showers
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Full-Service Installations
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Residential Windows
Glass Doctor of Greater St. Louis
St. Louis, MO-
Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Fast Delivery
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Glass Showers
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Commercial Windows
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Residential Windows
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Tempered Glass
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Double-Hung
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Custom Window Designs
Martin Glass Company
St. Louis, MO-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
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Award-Winning
Services Offered
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Glass Showers
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Full-Service Installations
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Residential Windows
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Custom Window Designs
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Sliding Glass
Home Services at The Home Depot
St. Louis, MO-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Bay Windows
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Double-Hung
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Commercial Windows
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Fast Delivery
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Residential Windows
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Stained Glass
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Custom Window Designs
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Glass Showers
Viviano Windows & Door
Webster Groves, MO-
Price Transparency
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Timely Service
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Free assessment
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Good Customer Service
Services Offered
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Glass Showers
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Stained Glass
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Energy-Efficient Options
Alenco Inc.
Fenton, MO-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Sliding Glass
How Installing Energy-Efficient Windows in Mascoutah Saves You Money
When you switch to energy-efficient windows, you may see several benefits, including:
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes usually have windows that are outdated, drafty or maybe even damaged in some way. Upgrading your windows could help increase the value of your property if you decide to sell.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Decrease your carbon footprint: By using less energy after you switch to Energy Star certified windows, you'll also be decreasing your carbon dioxide emissions by about 12%, according to Energy Star.
- Save money on power 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 Mascoutah
When researching window installation, each company provides varying services and costs. Let's go over some typical costs and services.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range from $200 to $1,200. But costs vary remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door replacements, which will make your project cost more.
With windows, efficiency is the most important factor for most homeowners. Windows with higher efficiency may cost more off the bat, but by increasing the efficiency of your home — especially during the summer and winter — they can provide decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Mascoutah homeowners $316+ a year after replacing single-pane windows.
How much your window installation costs will also vary depending on the kind of material you choose for the frames. Wood windows are generally the most expensive, although it depends if they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
The first question to ask yourself when planning to replace your windows is: Do you need a full-frame installation or a pocket installation?
Full-frame installations entail replacing the total window, including the sill, trim and frame. Full-frame installations are necessary when you want to change the style of your windows or your window has significant deterioration. Because full-frame installations are more involved, they will increase the overall cost. Pocket installations (or retrofits) entail installing a new window within the existing frame, which makes pocket installations take less time and therefore cost less. However, if the frame has any damage or rot, you will most likely need a full-frame installation instead.
Your window installation company will be able to help you choose what's best for your needs. In Mascoutah, the decision will mostly depend on how old your windows are and if there's any damage. Wood can decay if it's not properly maintained over the years, so it's a good idea to have a professional examine your frames and window sills.
Best Affordability
Window World
- Low prices relative to competitors
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Manufactures products in-house
- Member of US Green Building Council
- More expensive than competition
Best for Residential Windows
Window Nation
- Custom designs
- Wide variety of products and services
- Manufactures products in-house
- Installation not covered by warranty
How We Choose the Best Window Installers in Mascoutah
The EcoWatch Reviews team is different from most reviewers because we evaluate these companies through a sustainability lens. Along with energy efficiency, we assessed window companies all across the state and ranked them based on the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find the best window installation company near you.
Work Quality
When choosing new windows, the quality and breadth of services often plays just as important of a role in overall efficiency and performance as the brand you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don't have good things to say about their service from a certain company, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: as with other services, cheap window installers won't always provide the highest quality service. On the other hand, we want to make sure we're highlighting companies that provide a range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a substantial investment, so you'll want to make sure that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Mascoutah's climate, homeowners need to be wary of low efficiency, rot and water damage. We factored in local experience to reflect the ability of Mascoutah window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Mascoutah, IL Window Replacement FAQs
What is the typical cost to replace windows in a home?
The average cost to install a window can range from $450 to $650. There are several factors that influence how much it costs, such as local labor costs, styles and sizes of windows, the number of windows, how energy-efficient the windows are, your property's location and the materials used in designing the windows.
What are the most common kinds of replacement windows?
There are several different types of windows you can get for your house, such as awning windows, bay windows, casement windows, picture windows, double-hung and single-hung windows, slider windows and transom windows.
What do window installation companies do?
Window installers visit your home to remove your old windows and replace them with new ones. Some providers install products sold by other companies, whereas others install their own windows. The installer will also clean up after the installation is complete.
How long does it usually take to install windows?
Each window takes around 30 minutes to install depending on the type of window. However, the window installation can take two days or more if you have a lot of windows that have to be installed.
How often should you replace windows?
Windows typically have a lifespan of around 20 to 30 years, but anytime you notice damage on your windows, it's a good time to have them checked by an expert to see if they need any repairs or replacements.