20 Best Window Companies in Frontenac, MO (2023 Reviews)
When the time comes to replace your windows, our guide to the best window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in Frontenac and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
A guide on the top window installation companies in Frontenac may not seem like the most interesting article on the EcoWatch site, but trust us, windows impact your life more than you might realize. Poor windows can make your AC or heater work extra hard in the summer or winter.
That's also bad news for the environment because the additional energy used by old windows increases your carbon footprint.
Unlike other review sites, EcoWatch ranks window companies based on energy efficiency while also factoring in cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Frontenac
The EcoWatch team assessed many window providers across Frontenac to narrow our list down to the top ones. The providers in this article scored best in our review categories, which include energy-efficient offerings, availability, customer service, local expertise, price and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World offers windows expertise in Frontenac. This window installation company has been operating since 1995 and currently provides services to 200 locations nationwide.
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 right provider for you.
Energy Efficiency of Window World WindowsWindow World is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in Frontenac?Prices are not available on Window World’s website, as the cost of window replacement differs based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to know for sure.

Renewal by Andersen
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Great industry reputation
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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
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More expensive than competition
Renewal by Andersen offers the best availability in Frontenac. Andersen has been in the window industry for around 27 years. The company has hundreds of positive reviews from customers online.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the right company for you.
Energy Efficiency of Renewal by Andersen WindowsThere are a wide variety of window types available from Renewal by Andersen, some of which are Energy Star products. 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?Pricing information is not available on Andersen’s website, as 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 anywhere between $750 to $1,250 per window for an installation with Andersen. Requesting a free quote on its website is the best way to get more accurate information.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct provides the best warranty in Frontenac. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has over 20 years of industry experience, and it currently provides services to 27 states nationwide. Its reputation is backed by many positive reviews from customers online.
You may want to consider picking Universal if you're interested in a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Frontenac?Although pricing information is not available on Universal’s website, 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. The best way to know for sure is to receive a free 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 offers the best residential windows in Frontenac. Window Nation has been in the window industry for around 16 years. The company has hundreds of positive reviews from customers online.
If you’re looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, this may be the right company for you.
Energy Efficiency of Window Nation WindowsThere are a wide variety 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 Frontenac?Pricing information is not available on Window Nation’s website, as 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. Requesting a free quote on its website is the best way to get more accurate information.
We strive to remain unbiased and transparent by mentioning pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.
More Window Companies in Frontenac
Renewal by Andersen
Maryland Heights, MO-
Free assessment
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Timely Service
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Educational Website
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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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Stained Glass
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Custom Window Designs
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Commercial Windows
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Sliding Glass
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Glass Showers
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Window Replacement
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Double-Hung
Window World of St. Louis
Earth City, MO-
Free assessment
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Educational Website
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Price Transparency
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Timely Service
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Good Customer Service
Services Offered
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Commercial Windows
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Energy-Efficient Options
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Double-Hung
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Bay Windows
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Fast Delivery
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Custom Window Designs
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Glass Showers
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Window Replacement
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Residential Windows
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Sliding Glass
Champion Replacement Windows of St. Louis
Fenton, MO-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Bay Windows
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Window Replacement
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Double-Hung
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Custom Window Designs
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Sliding Glass
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Residential Windows
Window Nation
Overland, MO-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Double-Hung
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Stained Glass
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Energy-Efficient Options
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Residential Windows
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Bay Windows
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Custom Window Designs
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Window Replacement
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Sliding Glass
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Glass Showers
STL Windows and Doors
St. Louis, MO-
Free assessment
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Price Transparency
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Educational Website
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Timely Service
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Good Customer Service
Services Offered
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Custom Window Designs
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Bay Windows
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Aluminum Window Frames
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Double-Hung
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Residential Windows
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Commercial Windows
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Fast Delivery
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Window Replacement
Hyperion Glass Company
St. Louis, MO-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Window Replacement
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Double-Hung
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Residential Windows
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Glass Showers
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Commercial Windows
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Custom Window Designs
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Fast Delivery
Building Envelope Experts
Fenton, MO-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Custom Window Designs
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Window Replacement
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Energy-Efficient Options
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Bay Windows
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Fast Delivery
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Residential Windows
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Double-Hung
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Sliding Glass
Banner Construction
St. Louis, MO-
Free assessment
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Educational Website
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Timely Service
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Window Replacement
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Full-Service Installations
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Custom Window Designs
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Residential Windows
Jacob Sunrooms, Exteriors & Baths
Fenton, MO-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Glass Showers
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Fast Delivery
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Window Replacement
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Residential Windows
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Energy-Efficient Options
Gallagher Bros Construction
St. Louis, MO-
Free assessment
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Good Customer Service
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Educational Website
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Timely Service
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Price Transparency
Services Offered
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Residential Windows
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Fast Delivery
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Commercial Windows
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Custom Window Designs
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Window Replacement
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Full-Service Installations
Clear Window Technology
Ballwin, MO-
Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Window Repair
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Residential Windows
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Custom Window Designs
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Full-Service Installations
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Window Replacement
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Bay Windows
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Double-Hung
Coldstream Exteriors
St. Louis, MO-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Aluminum Window Frames
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Custom Window Designs
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Residential Windows
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Window Replacement
Cardinal Contractors
St. Louis, MO-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Window Replacement
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Commercial Windows
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Double-Hung
Integrity Restoration - Home Remodeling
Brentwood, MO-
Price Transparency
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Timely Service
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Glass Showers
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Fast Delivery
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Custom Window Designs
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Commercial Windows
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Window Replacement
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Residential Windows
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Stained Glass
LEI Home Enhancements
St. Louis, MO-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Fast Delivery
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Sliding Glass
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Window Replacement
Home Services at The Home Depot
St. Louis, MO-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
Services Offered
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Double-Hung
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Custom Window Designs
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Window Replacement
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Glass Showers
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Residential Windows
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Commercial Windows
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Fast Delivery
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Stained Glass
Mills Window & Door Showroom
Fenton, MO-
Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Commercial Windows
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Custom Window Designs
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Window Replacement
Colonial Construction
St. Louis, MO-
Educational Website
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Good Customer Service
Services Offered
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Window Replacement
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Fast Delivery
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Custom Window Designs
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Residential Windows
XL Building Products
St. Louis, MO-
Price Transparency
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Educational Website
Services Offered
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Residential Windows
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Custom Window Designs
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Window Replacement
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Double-Hung
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Commercial Windows
Viviano Windows & Door
Webster Groves, MO-
Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Residential Windows
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Commercial Windows
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Energy-Efficient Options
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Custom Window Designs
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Glass Showers
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Stained Glass
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Window Replacement
Calculate how much you can expect to pay for window installation and replacement in Frontenac, MO using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Frontenac Saves You Money
By upgrading to energy-efficient windows, you can enjoy several benefits, such as:
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, especially if you have an older home.
- Better temperature control in your home: Energy-efficient windows can decrease the amount of heat lost through your windows when heating your home.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can reduce your carbon footprint by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Frontenac
Let's go over the cost of updating your windows and the kinds of services offered by installers.
How Much Do New Windows Cost?
The average cost to replace a single window is about $600 but can range from $200 to $1,200. How much it will cost varies depending on several factors, like number of windows, size, material, the location of your home, type and more.
With windows, efficiency is the most important factor for many homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — particularly during the summer and winter — they can give you decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Frontenac homeowners $376+ a year after replacing single-pane windows.
Costs will also vary depending on the material you want for your window frames. Aluminum frames have the lowest price. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
The first step of a window installation is to think about whether you want a full-frame or pocket installation.
A full-frame installation is a total window replacement. This service involves taking out the old window, the windowsill, and the exterior and interior trim. It can also involve extra materials, including insulation and drip edges, which increase the total cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. A pocket installation involves replacing a window within the frame that's already there. So, instead of removing the whole unit and rebuilding it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.
If you're hiring a reputable window installation company, your company can advise you on the best type for your project. In Frontenac, the choice will mostly be influenced by how much damage there is currently and the age of your existing frames.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
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 examined many companies before settling on these. We have assessed the best window replacement companies in Frontenac primarily based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows can cut your energy 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 Frontenac, we paid more attention to companies that cover the city. There are other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Frontenac.
Work Quality
When selecting new windows, the quality and variety of services can often play just as important of a role in overall efficiency and performance as the type of window you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another super important review factor. If most customers don't have nice feedback about their experience with a certain company, you won't see it featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing providers' prices, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a substantial investment, so you'll want to make sure that investment is protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Frontenac's climate, homeowners need to be wary of rot, water damage and low efficiency. 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 typical cost to install windows in a home?
The typical cost to replace a window can range from $450 to $650. There are several factors that influence the cost, including the materials used in designing the windows, styles and sizes of windows, the number of windows, how energy-efficient the windows are, your property's location and local labor costs.
What type of window is the most energy-efficient?
A window's energy efficiency depends on several factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are usually the most energy-efficient since they are certified by the U.S. Department of Energy.
Can you replace your own windows?
While it is possible to install your own windows, doing so requires a lot of time and experience with home improvement projects. Using a window installation company can help guarantee that the job is done properly and that you can avoid spending the time and effort of doing it yourself.
When is the best time of year to replace windows?
Replacement windows can be installed during any season, but autumn might be best. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into the home, so the temperature outside doesn't necessarily matter that much. Most importantly, the weather should be dry.
How do you know it's time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, then they should probably be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to open or close, they may need to be replaced.