30 Best Window Replacement Companies in Cahokia, IL (2023 Reviews)
Window Companies Near Me
If you're thinking of getting new windows, our list of the best window installation companies can help.
We analyzed all the top window installers in Cahokia and selected the top 30 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
Although eco-friendly energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home's efficiency can also have a large impact on home energy conservation. If your windows are outdated or damaged, you could be sending 25-30% of your home's heat or cool air right out of them.
Replacement windows improve the insulation in your home, not only making you and your family more comfortable during extreme temperatures, but also saving you some money and helping the environment.
So if you're building a new home, renovating or updating your windows in Cahokia, this is the best place to get started.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Large serice area
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Wide variety of products and services
- Manufactures products in-house
- Makes charitable contributions
- Some installations carried out by third-party contractors
Best Window Replacement Companies in Cahokia
The EcoWatch team researched many window companies in Cahokia to find the best ones for our readers. The companies in this article scored the best in our review categories, such as energy-efficient offerings, availability, customer service, price, local expertise and more.

Renewal by Andersen
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Manufactures products in-house
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Award-winning company
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Member of US Green Building Council
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More expensive than competition
Renewal by Andersen offers the best availability in Cahokia. Andersen has been in the window installation industry for around 27 years. The company has many glowing reviews from customers online.
It 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 WindowsA 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. Not all of Andersen's windows are Energy Star certified, so be sure to mention that you're interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Cahokia?Andersen does not detail prices 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. If you'd like more accurate pricing information, you can receive a quote on the company's website.

Window World
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EnergyStar Partner
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Lifetime warranty
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Large serice area
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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. Window World has about 27 years of experience in the window installation sector. Many positive reviews on customer review websites back the provider's reputation.
Window World may be the company for you if you're looking for 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 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 windows are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.
How much does Window World cost in Cahokia?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to get a free quote from the company.

Universal Windows Direct
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Wide variety of products and services
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Manufactures products in-house
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Makes charitable contributions
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Some installations carried out by third-party contractors
Universal Windows Direct offers the best warranty in Cahokia. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has been in the window installation industry for around 20 years. The provider has many positive reviews from customers online.
If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the right provider for you.
Energy Efficiency of Universal Windows Direct WindowsThere are a wide variety of window types that Universal Windows Direct offers, some of which are Energy Star products. 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 Cahokia?Universal does not detail 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. For more detailed information on pricing, you can request a quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has over 16 years of industry experience, and it currently provides services to residents within 75 miles of its showrooms, which are in 13 states.
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 appeals to eco-conscious consumers by providing 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 Cahokia?Prices aren't displayed on Window Nation's 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. The best way to get more accurate information is to ask for a free quote from the company.
We try to remain unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Replacement Companies in Cahokia
Penny Window
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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Energy-Efficient Options
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Tempered Glass
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Double-Hung
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Commercial Windows
Window World of St. Louis
Earth City, 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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Energy-Efficient Options
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Two Blind Guys
Des Peres, MO-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Energy-Efficient Options
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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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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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Energy-Efficient Options
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Commercial Windows
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Double-Hung
Budget Blinds of Clayton & University City, West & South St. Louis
Manchester, MO-
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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Energy-Efficient Options
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Glass Showers
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Double-Hung
Window Nation
Overland, MO-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Energy-Efficient Options
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Double-Hung
Empire Supply Co
St. Louis, MO-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Energy-Efficient Options
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Tempered Glass
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Double-Hung
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Commercial Windows
Masonry & Glass Systems Inc
St. Louis, MO-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Double-Hung
Gallagher Bros Construction
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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Glass Showers
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Custom Window Designs
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Full-Service Installations
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Triton Exteriors
St. Louis, MO-
Good Customer Service
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Award-Winning
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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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Glass Showers
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Sears Window Replacement
Bridgeton, MO-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Energy-Efficient Options
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Double-Hung
Mr. Handyman of Central St. Louis County
Maryland Heights, MO-
Good Customer Service
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Award-Winning
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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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Glass Showers
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Custom Window Designs
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Stained Glass
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Residential Windows
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Commercial Windows
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Double-Hung
Home Services at The Home Depot
Brentwood, MO-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
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Commercial Windows
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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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Glass & More Inc. Low price glass repair!
Belleville, IL-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Residential Windows
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Commercial Windows
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Double-Hung
Kirkwood Glass Co
Kirkwood, MO-
Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Residential Windows
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Fast Delivery
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Tempered Glass
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Double-Hung
STL Design and Build
Maryland Heights, MO-
Good Customer Service
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Award-Winning
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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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Glass Showers
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Double-Hung
Crystal Windows & Door Systems
Fenton, 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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Energy-Efficient Options
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Glass Showers
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Double-Hung
Building Envelope Experts
Fenton, 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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Energy-Efficient Options
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Double-Hung
St. Louis Blinds and Shutters
Ballwin, MO-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
Martin Glass Company
Belleville, IL-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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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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Glass Showers
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Tempered Glass
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Double-Hung
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Commercial Windows
Martin Glass Company
St. Louis, MO-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Residential Windows
Home Services at The Home Depot
St. Louis, MO-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Viviano Windows & Door
Webster Groves, MO-
Good Customer Service
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Price Transparency
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Timely Service
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Free assessment
Services Offered
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Energy-Efficient Options
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Glass Showers
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Custom Window Designs
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Stained Glass
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Residential Windows
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Commercial Windows
Alenco Inc.
Fenton, 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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Glass Showers
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Commercial Windows
Hyperion Glass Company
St. Louis, MO-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Eye on Design Window Treatments & More
Belleville, IL-
Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
Butler Home Improvement
Collinsville, IL-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Residential Windows
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Custom Window Designs
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Double-Hung
LEI Home Enhancements
St. Louis, MO-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
How Installing Energy-Efficient Windows in Cahokia Saves You Money
There are several perks of switching to energy-efficient windows. A few reasons you may want to consider making the switch are the following:
- Reduce your carbon footprint: In Cahokia, you can lower your indirect greenhouse gas emissions by about 642 pounds per year once you install energy-efficient windows.
- Save on power bills: Once you upgrade to energy-efficient windows, you can expect a reduction in your bills by about 12% because you'll need less energy to heat or cool your home.
- Protect your investment: When you have an older home, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
- Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out damaging UV rays.
Estimated Cost of Window Replacement in Cahokia
Let's go over the cost of window installation and the types of services you may need for your home.
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 will vary significantly depending on the number of windows you need, your location, the quality of your products and the current condition of your home. Many window companies also offer door installations and other add-ons like shutters, baths, coating and more. These extra services will increase overall project costs.
Keep in mind that energy-efficient windows may have a higher price, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. These savings vary based on your local climate, energy rates and individual home characteristics.
Asking for free quotes from several companies is the best way to figure out which one is right for you.
What Services do Window Installers Offer?
There are generally two types of window installation services: full-frame and pocket installations.
Full-frame installations are usually done when you want a new style or your window has significant rot. With this service, your installers will replace the complete window, including the sill, frame and trim. 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 should opt for a full-frame installation instead.
Your window replacement company will be able to help you choose what's best for your needs. In Cahokia, the decision will mostly depend on the age of your windows and if there's any moisture damage. Wood can decay if it's not maintained properly over the years, so it's a good idea to have a professional check on your frames and window sills.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Large serice area
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Wide variety of products and services
- Manufactures products in-house
- Makes charitable contributions
- Some installations carried out by third-party contractors
How We Choose the Best Window Installers in Cahokia
EcoWatch reviews differ from most reviews since we assess these companies through a sustainability lens. Along with energy efficiency, we evaluated each installer and assigned rankings based on the following methodology:
Service Area
Since this is a guide for Cahokia, we gave more points to companies that serve the city. There are certainly reputable providers that didn't make the cut because they wouldn't be able to serve homeowners in Cahokia.
Work Quality
When selecting new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the brand of window you opt for. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If most customers don't have good feedback about their experience with a certain installer, it won't be featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers' prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for a while. Window installation companies that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.
Cahokia, IL Window Replacement FAQs
What is the average cost to install windows?
The national average cost to replace a single window is about $600 but can range between $200 and $1,200, depending on a few different factors. The price is typically dependent on the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What are the most common types of replacement windows?
There are various kinds of windows you can get for your home, including transom windows, casement windows, awning windows, double-hung and single-hung windows, bay windows, picture windows and slider windows.
What do window installers do?
Window installers will do the entire process — from replacing your old windows with new ones to cleaning up after the installation. Additionally, a lot of companies offer window manufacturing, customization and repairs.
How long does window installation typically take?
Each window takes around 30 minutes to install based on the kind of window. However, the window installation can take two days or more if you need to have a lot of windows installed.
Should I replace all my windows at the same time?
If you're upgrading your windows to save on your energy bills, replacing all the windows at once is the only way to gain that benefit. However, if you have only one or two windows that are damaged or drafty, you can replace just those.