28 Best Window Replacement Companies in Frontenac, MO (Mar 2023)
Window Companies Near Me
Looking to upgrade your windows? We've got you covered in this guide to the best window installation companies.
We analyzed all the top window installers in Frontenac and selected the top 28 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 March 14, 2023
Why you can trust EcoWatch
The EcoWatch team is all about helping Frontenac homeowners find eco-conscious solutions for their homes. Poor windows can make your AC or heater work extra hard in the summer or winter.
That's also bad news for the environment, as the extra energy used by outdated windows increases your carbon footprint.
We've compiled a list of the top installation companies to help you in your research, so you can not only enjoy brand new windows, but also save money on your electricity bills.
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- More expensive than competition
Best Affordability
Window World
- Large serice area
- EnergyStar Partner
- Low prices relative to competitors
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Lifetime warranty
- Wide variety of products and services
- Manufactures products in-house
- Some installations carried out by third-party contractors
Best Window Replacement Companies in Frontenac
The EcoWatch Reviews team examined dozens of installers that service the Frontenac area to find the best window installation companies by our standards. The companies we've mentioned in this article passed our review standards for energy-efficient offerings as well as price, local expertise, customer service and beyond.

Renewal by Andersen
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Award-winning company
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Member of US Green Building Council
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Great industry reputation
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More expensive than competition
Renewal by Andersen provides the best availability in Frontenac. Andersen has been in the window installation industry for about 27 years. Its reputation is backed by many positive reviews on customer 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want high-quality 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 Frontenac?Andersen doesn't have any pricing information listed on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate pricing information is to request a free quote from the company.

Window World
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Large serice area
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EnergyStar Partner
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Low prices relative to competitors
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Quality of service will depend on your area
Window World offers windows expertise in Frontenac. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of industry experience, and it currently provides services to 200 locations nationwide. The company has many glowing reviews from customers online.
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 WindowsWindow World's commitment to sustainability shows in its energy-efficient window offerings. 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 Frontenac?Window World doesn't have any cost information available on its website, but it's known for offering some of the most affordable window installations around. If you'd like more accurate information, you can inquire about a quote on the company's website.

Universal Windows Direct
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Lifetime warranty
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Wide variety of products and services
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Manufactures products in-house
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Some installations carried out by third-party contractors
Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has about 20 years of experience in the window replacement sector.
If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the right provider for you.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct's commitment to sustainability can be seen in its energy-efficient window offerings. 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 Frontenac?Prices aren't mentioned on Universal's 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 accurate information on the cost, you can inquire about 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. This company has been in business since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by all the positive reviews on customer review websites.
Window Nation may be the company for you if you want one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation 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 Frontenac?Pricing information is not available on Window Nation's website since the cost of window installment differs based on how many and what type(s) of windows you need. However, 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. If you'd like more accurate information, you can get a quote on the company's website.
We have tried to be unbiased and transparent by mentioning pros and cons for every provider. Additionally, any partnerships do not influence our rankings.
More Window Replacement Companies in Frontenac
The Glass Guru
Wentzville, MO-
Reliable Appointment Windows
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Reliable Service
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Award-Winning
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Price Transparency
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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Commercial Windows
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Double-Hung
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Sliding Glass
Storm Guard Roofing and Construction St Louis West County
Pacific, MO-
Award-Winning
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Educational Website
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Arrives on Time
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Excellent Customer Service
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-
Free Quotes
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Dependable Service
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Educational Website
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Reliable Appointment Windows
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 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
Window World of St. Louis
Bridgeton, MO-
Free Quotes
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No-Hassle Pricing
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Educational Website
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Reliable Service
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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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-
Educational Website
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Price Transparency
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Locally Recognized for Quality
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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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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 & Bow Windows
Mr. Handyman of Metro East
Collinsville, IL-
Consistent Workmanship
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Award-Winning
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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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Commercial Windows
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Double-Hung
Renewal by Andersen of St. Louis
Maryland Heights, MO-
Excellent Customer Service
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Charitable Giving
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Educational Website
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No-Hassle Pricing
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-
Price Transparency
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Reliable Appointment Windows
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Good Customer Service
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Free Quotes
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-
Excellent Customer Service
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No-fee Quotes
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No-Hassle Pricing
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Helps Educate Customers
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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Commercial Windows
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Double-Hung
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Sliding Glass
Glass & More Inc. Low price glass repair!
Belleville, IL-
Excellent Customer Service
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No-fee Quotes
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Helps Educate Customers
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Dependable Service
Services Offered
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Residential Windows
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Custom Window Designs
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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
Energy View Windows - Home Improvements
Hazelwood, MO-
Free Quotes
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Locally Recognized for Quality
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Helps Educate Customers
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Price Transparency
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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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-
Reliable Service
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No-Hassle Pricing
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Free Quotes
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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 Window Designs
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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-
Price Transparency
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No-fee Quotes
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Consistent Workmanship
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Good Customer 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 Windows
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
Masonry & Glass Systems Inc
St. Louis, MO-
Excellent Customer Service
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Helps Educate Customers
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No-fee Quotes
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Locally Recognized for Quality
Services Offered
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Custom Window Designs
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Glass Showers
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Sliding Glass
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Double-Hung
Window Nation
Overland, MO-
Price Transparency
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Award-Winning
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Helps Educate Customers
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Dependable Service
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-
Helps Educate Customers
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Excellent Customer Service
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Free Quotes
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Locally Recognized for Quality
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
STL Windows and Doors
St. Louis, MO-
Reliable Service
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Timely Service
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Excellent Customer Service
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Price Transparency
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-
Good Customer Service
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Price Transparency
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Dependable Service
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Helps Educate Customers
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-
Consistent Workmanship
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Arrives on Time
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Educational Website
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Price Transparency
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-
No-fee Quotes
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Consistent Workmanship
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Good Customer Service
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Award-Winning
Services Offered
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Architectural Glass
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Custom Windows
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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-
Dependable Service
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Timely Service
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No-Hassle Pricing
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Good Customer Service
Services Offered
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Custom Windows
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Full-Service Installations
Gateway Glass
10+ years in business · Pacific, MO-
Educational Website
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Free Quotes
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No-Hassle Pricing
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Good Customer Service
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
Same Day Door Service
Festus, MO-
Excellent Customer Service
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No-fee Quotes
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No-Hassle Pricing
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Reliable Appointment Windows
Services Offered
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Residential Windows
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
Alenco Inc.
Fenton, MO-
Price Transparency
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Consistent Workmanship
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No-fee Quotes
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Arrives on Time
Services Offered
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Custom Window Designs
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Glass Showers
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Sliding Glass
Banner Construction
St. Louis, MO-
Good Customer Service
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Helps Educate Customers
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Consistent Workmanship
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Timely Service
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-
Free Quotes
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Consistent Workmanship
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Good Customer Service
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Reliable Appointment Windows
Services Offered
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Winco Window Company
St. Louis, MO-
Excellent Customer Service
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Free Quotes
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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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Business Windows
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Double-Hung
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Sliding Glass
Millstadt Glass Inc
Millstadt, IL-
No-Hassle Pricing
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Free Quotes
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Good Customer Service
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 Frontenac Saves You Money
Energy-efficient windows can benefit you in more than one way. Here are some reasons you may want to think about making the switch:
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to 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 from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out harmful UV rays.
- Save on power bills: Switching to energy-efficient windows reduces your energy bills by about 12% since you use less energy.
- Reduce your carbon footprint: You can reduce your carbon footprint by about 12% when you install Energy Star certified windows. In Frontenac, that's about 763 pounds per year on average.
Estimated Cost of Window Replacement in Frontenac
Each window replacement company offers various services and has different prices depending on several factors.
How Much Do New Windows Cost?
The national average cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. How much it will cost varies depending on several factors, like size, number of windows, type, the location of your home, material and more.
Keep in mind that energy-efficient windows may come at a higher price point, but Energy Star estimates the upgrade will save you between $101 and $583 a year when replacing single-pane windows and between $27 and $197 a year when replacing double-pane, clear glass windows. Your exact savings will vary based on your local climate, energy rates and individual home characteristics.
We advise requesting free quotes from multiple window installation companies to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
The first step of a replacement is to think about whether you should get a full-frame or pocket installation.
Full-frame installations involve replacing the entire window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has a great amount of damage. Full-frame installations are more involved and will increase overall costs. A pocket installation entails replacing a window without replacing the frame. So, instead of taking out the whole window and reinstalling it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.
Your window installer should be able to help you figure out which type of installation you need.
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- More expensive than competition
Best Affordability
Window World
- Large serice area
- EnergyStar Partner
- Low prices relative to competitors
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Lifetime warranty
- Wide variety of products and services
- Manufactures products in-house
- Some installations carried out by third-party contractors
How We Choose the Best Window Installers in Frontenac
In our search to make your home improvements easier and more eco-friendly in Frontenac, the EcoWatch Reviews team evaluated many companies before settling on these. We have decided to review the best window installation companies in Frontenac primarily based on their energy efficient offerings, as it's what's best for the environment and for you as a homeowner. Energy Star certified windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is self-explanatory, but we've chosen to highlight window installation companies that serve Frontenac so you can find the best window installation company near you.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each installer included on this list to ensure its technicians are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If the majority of customers don't have positive things to say about their service from a certain installer, you won't see it featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers try to keep costs as low as possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed, windows are a sizable investment, so you'll want to make sure that investment is protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Frontenac's climate, homeowners need to be wary of low efficiency, rot and water damage. We factored in local experience to reflect the ability of Frontenac window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Frontenac, MO Window Replacement FAQs
What is the average cost to install windows in a home?
The national average cost to replace one window is about $600 but can range from $200 to $1,200, depending on several factors. The price is often influenced by the type and material of the window, the location of your property and the size of the window. Also, bear in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What kind of window is the best for energy efficiency?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open are more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models that have the blue Energy Star certification — this means they're certified energy-efficient by the U.S. Department of Energy.
What services do window installation companies do?
Window installers cover the entire process — from replacing your old windows with brand new ones to cleaning up afterward. Additionally, a lot of companies offer window manufacturing, customization and repairs.
What time of year is a good time to replace my windows?
Replacement windows can be installed during any season, but autumn might be best. No matter when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into the house, so the temperature outside isn't necessarily a big factor. What's most important is that the weather should be dry.