27 Best Window Replacement Companies in St Charles, MO (Jan 2023)
Window Companies Near Me
If you're looking to upgrade to new windows, our guide to the top window installation companies can help.
We analyzed all the top window installers in St Charles and selected the top 27 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 January 12, 2023
Why you can trust EcoWatch
A guide on the best window installation companies in St Charles may not seem like the most compelling article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might think. Poor windows can decrease your home's energy efficiency by up to 30%, according to the Department of Energy. In St Charles, that's almost $308 per year that you could save on your energy bills by making the switch.
Replacement windows improve the insulation in your home, not only making you more comfortable during the summer and winter, but also saving you some money and helping the environment.
Unlike other review sites, EcoWatch ranks window replacement companies on energy efficiency while also considering cost, customer satisfaction and service area.
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Manufactures products in-house
- No lifetime warranty
Best Warranty
Universal Windows Direct
- Makes charitable contributions
- Wide variety of products and services
- Manufactures products in-house
- Limited service area
Best Window Replacement Companies in St Charles
The EcoWatch team researched dozens of installers across the country to find the top window companies for our readers. The companies we've reviewed in this article scored best in our categories, including energy-efficient offerings, availability, customer service, price and more.

Window World
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EnergyStar Partner
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Large serice area
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Lifetime warranty
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Quality of service will depend on your area
Window World offers windows expertise in St Charles. This provider has 27 years of experience in the windows business, and it has established itself as one of the best companies in the business.
It has established itself as a company 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 St Charles?Window World doesn't have any pricing information displayed on its website, but it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to get more accurate information.

Renewal by Andersen
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been operating since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. Its reputation is backed by all the positive reviews from customers online.
Andersen may be the company for you if you're interested in 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's commitment to sustainability can be seen in its energy-efficient window offerings. 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 St Charles?Prices aren't listed on Andersen's website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate pricing information is to request a free quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Wide variety of products and services
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Manufactures products in-house
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Limited service 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 business for about 20 years. Its reputation is backed by a considerable amount of positive reviews on customer review websites.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to ask your Universal representative when inquiring about services.
How much does Universal Windows Direct cost in St Charles?Universal does not display 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. Receiving a free quote on its website is the best way to get more accurate information.

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 has the best residential windows in St Charles. It's 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. Hundreds of positive reviews from customers online back the provider's reputation.
It has established itself as a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsThere are a wide range of window types available from Window Nation, some of which are Energy Star products. 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 St Charles?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. The best way to get more accurate information is to ask for a free quote from the company.
We aim to be unbiased and transparent by including pros and cons for every provider. Additionally, any partnerships do not influence our reviews.
More Window Replacement Companies in St Charles
The Glass Guru
Wentzville, MO-
Arrives on Time
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Locally Recognized for Quality
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Glass Showers
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Storm Guard Roofing and Construction St Louis West County
Pacific, MO-
Free Quotes
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Reliable Appointment Windows
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Good Customer Service
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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Fast Delivery
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Stained Glass
Wildwood Roofing & Construction
Ellisville, MO-
Reliable Service
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Timely Service
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Good Customer Service
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Locally Recognized for Quality
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Window World of St. Louis
Bridgeton, MO-
Excellent Customer Service
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No-fee Quotes
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Educational Website
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No-Hassle Pricing
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Chaney Windows And Doors
Maryland Heights, MO-
Good Customer Service
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Price Transparency
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Educational Website
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No-fee Quotes
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Mr. Handyman of Metro East
Collinsville, IL-
Excellent Customer Service
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No-fee Quotes
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Price Transparency
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Double-Hung
Renewal by Andersen of St. Louis
Maryland Heights, MO-
Educational Website
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Reliable Appointment Windows
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Supports Charities
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Free Quotes
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Full-Service Installations
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Double-Hung
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Sliding Glass
Lowe's Home Improvement
Belleville, IL-
Educational Website
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No-Hassle Pricing
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Excellent Customer Service
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Timely Service
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Empire Supply Co
St. Louis, MO-
Educational Website
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Free Quotes
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Glass & More Inc. Low price glass repair!
Belleville, IL-
Educational Website
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Excellent Customer Service
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Dependable Service
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Price Transparency
Services Offered
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Residential Windows
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Custom Windows
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Energy View Windows - Home Improvements
Hazelwood, MO-
Free Quotes
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Excellent Customer Service
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No-Hassle Pricing
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Helps Educate Customers
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Aluminum Window Frames
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Energy-Efficient Options
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Architectural Glass
Spectrum Glass & Tinting
O'Fallon, MO-
Consistent Workmanship
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Free Quotes
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Fast Delivery
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Custom Windows
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Sliding Glass
All About Glass
Arnold, MO-
No-fee Quotes
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Excellent Customer Service
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Price Transparency
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Dependable Service
Services Offered
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Residential Windows
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Heavy Glass
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Sliding Glass
Masonry & Glass Systems Inc
St. Louis, MO-
Reliable Service
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Award-Winning
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Educational Website
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Free Quotes
Services Offered
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Custom Windows
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Glass Showers
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Sliding Glass
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Double-Hung
Window Nation
Overland, MO-
Free Quotes
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Dependable Service
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Educational Website
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No-Hassle Pricing
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Sears Window Replacement
Bridgeton, MO-
Excellent Customer Service
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No-fee Quotes
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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 Windows
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Energy-Efficient Options
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Double-Hung
STL Windows and Doors
St. Louis, MO-
Educational Website
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Reliable Appointment Windows
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Price Transparency
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No-fee Quotes
Services Offered
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Double-Hung
Building Envelope Experts
Fenton, MO-
Dependable Service
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Free Quotes
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Price Transparency
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Educational Website
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Missouri Glass Company
St. Louis, MO-
Excellent Customer Service
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Reliable Appointment Windows
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No-Hassle Pricing
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Reliable Service
Services Offered
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Residential Windows
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Heavy Glass
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Tempered Glass
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Custom Window Designs
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Business Windows
Clear Window Technology
Ballwin, MO-
Price Transparency
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Reliable Service
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Award-Winning
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No-fee Quotes
Services Offered
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Architectural Glass
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Custom Window Designs
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Full-Service Installations
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Double-Hung
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Bay & Bow Windows
Lakeside Renovation & Design
Chesterfield, MO-
No-Hassle Pricing
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Award-Winning
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Helps Educate Customers
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Arrives on Time
Services Offered
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Custom Windows
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Full-Service Installations
Gateway Glass
10+ years in business · Pacific, MO-
Free Quotes
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Price Transparency
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Educational Website
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Consistent Workmanship
Services Offered
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Fast Delivery
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Tempered Glass
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Custom Windows
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Double-Hung
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Sliding Glass
Alenco Inc.
Fenton, MO-
Helps Educate Customers
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Timely Service
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Price Transparency
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Excellent Customer Service
Services Offered
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Custom Windows
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Glass Showers
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Sliding Glass
Banner Construction
St. Louis, MO-
No-Hassle Pricing
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Helps Educate Customers
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Arrives on Time
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Free Quotes
Services Offered
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Custom Windows
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Full-Service Installations
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Double-Hung
Jacob Sunrooms, Exteriors & Baths
Fairview Heights, IL-
Locally Recognized for Quality
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Free Quotes
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Reliable Appointment Windows
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Winco Window Company
St. Louis, MO-
No-fee Quotes
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Excellent Customer Service
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Millstadt Glass Inc
Millstadt, IL-
Excellent Customer Service
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Price Transparency
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No-fee Quotes
Services Offered
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Residential Windows
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Glass Showers
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Fast Delivery
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Tempered Glass
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Custom Window Designs
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Commercial Windows
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Sliding Glass
How Installing Energy-Efficient Windows in St Charles Saves You Money
When you switch to energy-efficient windows, you may see several benefits, including:
- 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.
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Reduce your carbon footprint: By using less energy once upgrading to Energy Star certified windows, you'll also be decreasing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Save on energy bills: Since energy-efficient windows lower how much energy you need to heat or cool your home, they can help you save about $308 annually on your energy bills in St Charles.
Estimated Cost of Window Replacement in St Charles
Windows come in various shapes and sizes, so costs and services will vary remarkably. Here are the average costs and services that you'll find from the average window installation company.
How Much Do New Windows Cost?
Generally, St Charles homeowners can expect their window installations to range from $250 to $1,200. The average cost is at approximately $600. This is because window installations depend on several factors specific to your home, such as the size, material and number of windows you need to replace, as well as the location of your property.
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 — particularly during the summer and winter — they can provide decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save St Charles homeowners $308+ per year after replacing single-pane windows.
Something else that influences the overall cost is the material you pick for your frame. Aluminum frames are usually the least pricey and are sturdy and light, but they offer poor insulation. On the other hand, wood frames cost the most, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.
What Services do Window Installers Offer?
The first question to ask yourself when considering a window replacement is: Should you get a full-frame installation or a pocket installation?
A full-frame installation replaces the complete window, including the sill, frame, trim and the window panes. Because this kind of installation requires more time, it will be more expensive than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are on the simpler end and will be less expensive, but you can't do this type of installment if you have any pre-existing rot or water damage.
If you're still debating which type of installation to get, you can talk to your provider and get their recommendation. The decision mostly depends on how old the frames are and if there's any damage.
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Manufactures products in-house
- No lifetime warranty
Best Warranty
Universal Windows Direct
- Makes charitable contributions
- Wide variety of products and services
- Manufactures products in-house
- Limited service area
How We Choose the Best Window Installers in St Charles
In our search to find the most reliable, eco-friendly window installers in St Charles, the EcoWatch Reviews team landed on the above companies as the best window installation companies in the city. We've evaluated the best window installers in St Charles primarily based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows have been shown to cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
Because this is a guide for St Charles, we only included 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 St Charles.
Work Quality
We're certain that you're looking for professionals who do a great job installing windows. We've vetted each installer on this list to make sure its technicians are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent customer feedback to find the companies with the most customer satisfaction. Customer satisfaction may be the most important factor, as it reflects the quality of services across most other categories, including quality of parts, quality of installation, professionalism, cost, warranty and more.
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 the prices of providers, we gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a serious investment, so you'll want to be certain that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installers that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
St Charles, MO Window Replacement FAQs
What is the average cost to replace windows in a home?
The national average cost to install one window is around $600 but can range between $200 and $1,200, based on a variety of factors. The price is usually dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
Which kind of window should I get?
Generally, double-pane windows are more efficient than single-pane windows and windows that don't open will be more efficient than windows that do. If you want to be sure you'll get the most energy-efficient windows, look for models that have the blue Energy Star certification — they're certified energy-efficient by the U.S. Department of Energy.
What services do window installation companies provide?
Window installation professionals cover the entire process — from replacing your old windows with brand new ones to cleaning up after the installation. In addition, many companies offer window manufacturing, customization and repairs.
How long does window installation take?
Since the average installation time of a window is 30 minutes, around 16 windows can be installed during an 8-hour work day.
Should I replace all my windows at once?
If you're upgrading your windows because of energy-efficiency, replacing all your windows together is the only way to gain that benefit. On the other hand, if you have only one or two windows that are broken or leaky, you can replace just those.