20 Best Window Companies in Affton, MO (2023 Reviews)
If you're thinking of getting new windows, our guide to the best window installation companies can help.
We analyzed all the top-rated window companies in Affton 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
The EcoWatch team is all about helping Affton homeowners make their homes more eco-friendly. Drafty, leaky windows could lead to having higher electric bills during the winter or summer months.
That's also bad for the environment, as the additional energy used by outdated windows increases your carbon footprint.
So if you're constructing a new home, renovating or changing out old windows in Affton, you've found the best place to get started.
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 Affton
The EcoWatch Reviews team assessed dozens of window providers across Affton to narrow our list down to the top ones. The companies mentioned in this article scored the best in our review categories, such as energy-efficient offerings, price, availability, local expertise, customer service 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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the window replacement business.
It 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 WindowsThere are a wide range of window types that Window World offers, some of which are Energy Star products. 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 Affton?Prices aren’t mentioned on Window World’s 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.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the windows business, and it has established itself as one of the most respected companies in Affton. Hundreds of positive reviews on customer review websites back the provider's reputation.
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 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 Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Affton?Andersen doesn’t have any pricing information available 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. You can ask for a free quote on its website for more information about the cost.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has over 20 years of experience in the windows industry, and it currently serves 27 states nationwide. Its reputation is backed by hundreds of positive reviews from customers online.
You may want to consider picking Universal if you're interested in a installer that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThere are a wide variety of window types that Universal Windows Direct offers, some of which are Energy Star products. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Affton?While pricing 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. For more accurate information on pricing, 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 provider has 16 years of experience in the windows business, and it has established itself as one of the most respected companies in Affton. Hundreds of positive reviews on customer review websites back the provider's reputation.
Window Nation may be the company for you if you're interested in one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation 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 Nation representative when inquiring about services.
How much does Window Nation cost in Affton?Window Nation doesn’t have any pricing information available on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. You can ask for a free quote on its website for more information about the cost.
We strive to stay unbiased and transparent by listing pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Affton
Renewal by Andersen
Maryland Heights, MO-
Good Customer Service
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Timely Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Sliding Glass
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Stained Glass
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Custom Window Designs
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Residential Windows
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Double-Hung
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Window Replacement
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Commercial Windows
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Glass Showers
Champion Replacement Windows of St. Louis
Fenton, MO-
Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Custom Window Designs
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Residential Windows
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Window Replacement
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Bay Windows
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Sliding Glass
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Double-Hung
Window World of St. Louis
Earth City, MO-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
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Timely Service
Services Offered
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Sliding Glass
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Glass Showers
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Custom Window Designs
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Double-Hung
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Fast Delivery
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Commercial Windows
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Residential Windows
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Energy-Efficient Options
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Bay Windows
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Window Replacement
Window Nation
Overland, MO-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Residential Windows
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Glass Showers
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Window Replacement
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Sliding Glass
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Double-Hung
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Stained Glass
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Bay Windows
Gallagher Bros Construction
St. Louis, MO-
Timely Service
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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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Fast Delivery
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Custom Window Designs
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Window Replacement
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Commercial Windows
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Residential Windows
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Full-Service Installations
Building Envelope Experts
Fenton, MO-
Timely Service
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Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Window Replacement
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Double-Hung
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Bay Windows
Jacob Sunrooms, Exteriors & Baths
Fenton, MO-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Glass Showers
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Custom Window Designs
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Fast Delivery
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Energy-Efficient Options
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Window Replacement
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Residential Windows
Banner Construction
St. Louis, MO-
Price Transparency
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Educational Website
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Timely Service
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Good Customer Service
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Free assessment
Services Offered
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Full-Service Installations
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Window Replacement
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Custom Window Designs
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Residential Windows
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Double-Hung
Coldstream Exteriors
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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Aluminum Window Frames
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Residential Windows
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Custom Window Designs
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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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Double-Hung
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Residential Windows
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Commercial Windows
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Window Replacement
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Custom Window Designs
Integrity Restoration - Home Remodeling
Brentwood, MO-
Price Transparency
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Educational Website
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Free assessment
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Timely Service
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Good Customer Service
Services Offered
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Glass Showers
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Window Replacement
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Stained Glass
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Fast Delivery
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Custom Window Designs
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Commercial Windows
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Residential Windows
Home Services at The Home Depot
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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Stained Glass
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Commercial Windows
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Window Replacement
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Residential Windows
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Glass Showers
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Custom Window Designs
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Fast Delivery
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Double-Hung
Colonial Construction
St. Louis, MO-
Good Customer Service
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Educational Website
Services Offered
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Fast Delivery
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Custom Window Designs
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Window Replacement
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Residential Windows
Mills Window & Door Showroom
Fenton, 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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Commercial Windows
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Custom Window Designs
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Window Replacement
Missouri Glass Company
St. Louis, MO-
Good Customer Service
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Timely Service
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Price Transparency
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Educational Website
Services Offered
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Window Replacement
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Commercial Windows
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Tempered Glass
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Residential Windows
Viviano Windows & Door
Webster Groves, MO-
Timely Service
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Price Transparency
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Good Customer Service
Services Offered
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Glass Showers
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Residential Windows
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Custom Window Designs
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Energy-Efficient Options
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Stained Glass
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Commercial Windows
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Window Replacement
XL Building Products
St. Louis, MO-
Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Commercial Windows
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Double-Hung
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Window Replacement
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Custom Window Designs
Alenco Inc.
Fenton, MO-
Price Transparency
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Educational Website
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Timely Service
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Free assessment
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Good Customer Service
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Window Replacement
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Glass Showers
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Sliding Glass
American Roofing and Exteriors
Fenton, MO-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Window Replacement
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Residential Windows
STL Windows and Doors
St. Louis, MO-
Educational Website
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Price Transparency
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Timely Service
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Free assessment
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Good Customer Service
Services Offered
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Double-Hung
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Residential Windows
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Bay Windows
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Window Replacement
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Fast Delivery
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Custom Window Designs
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Commercial Windows
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Aluminum Window Frames
Calculate how much you can expect to pay for window installation and replacement in Affton, 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 Affton Saves You Money
By upgrading to energy-efficient windows, you can enjoy several benefits, including:
- Better temperature control in your home: Energy-efficient windows can lower how much heat is lost through your windows when heating your home.
- Protect your valuables from fading: When you switch 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.
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes usually have windows that are outdated, leaky or maybe even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
- Save on power bills: Once you install energy-efficient windows, you can expect a reduction in your bills by about 12% because you'll need less energy to heat or cool your home.
Estimated Cost of Window Replacement in Affton
Windows come in various purposes, styles and shapes, so costs and services will vary tremendously based on your project. Below, we detail the average cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
According to our market research, the average cost of installing a single window is about $600. However, window installation costs can range from $200 to $1,200 per window. But prices differ considerably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door installations and replacements, which will add extra costs to your project.
Keep in mind that energy-efficient windows may have a higher price, but Energy Star predicts 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 savings will vary depending on your local climate, energy rates and individual home characteristics.
Something else that influences the total cost is the material you choose for your frame. Aluminum frames are usually the least pricey and are sturdy and light, but they provide poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.
What Services do Window Installers Offer?
Generally, there are two types of window installation services companies provide: full-frame and pocket installations.
A full-frame installation replaces the entire window, including the sill, frame, trim and the window panes. As this kind of installation requires more time, it will be more expensive than a pocket installation. A pocket installation involves replacing a window within the existing frame, which is generally cheaper than a full-frame installation.
If you're unsure which type of window installation service you need, your installer can help you out. Generally, the choice is based on factors such as the age and condition of the home, the type of building material, budget and time restrictions.
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 Affton
In our hunt to make your home improvements easier and more eco-friendly in Affton, the EcoWatch Reviews team examined many companies before landing on these. Along with energy efficiency, we assessed each installer and ranked them based on the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve Affton so you can find a quality window installation company near you.
Work Quality
When picking new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand you opt for. 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
We analyzed patterns in recent customer feedback to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across most other categories, including quality of parts, quality of installation, warranty, professionalism, cost and more.
Cost
This one is a give-and-take: as with most services, cheap window installers won't always provide the most quality service. Still, we want to make sure we're highlighting companies that provide a range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a hefty investment, so you'll want to be certain that investment is well protected. Window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a proven track record in the industry. Window installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Affton, MO Window Replacement FAQs
What is the typical cost to install windows?
The typical cost of installing one window ranges from $450 to $650. There are a variety of factors that influence the price, which include the materials used in designing the windows, local labor costs, your property's location, the number of windows, styles and sizes of windows and how energy-efficient the windows are.
What are the different kinds of windows?
The most common types of windows for homes include: transom windows, slider windows, double-hung and single-hung windows, casement windows, picture windows, bay windows and awning windows.
When do I need to use a window installation company?
You should use a window installation company whenever you want new windows. Installing windows is a complex process that can take a lot of time, so it's best left to the professionals.
What time of year should I replace my windows?
Replacement windows can be installed at any time, but warmer weather is typically better. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into your home, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.