28 Best Window Replacement Companies in St Clair, MO (Mar 2023)
Window Companies Near Me
When the time comes to upgrade your windows, our guide to the best window installation companies can help you find the right provider for you.
We analyzed all the top window installers in St Clair 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 St Clair homeowners find eco-conscious solutions for their homes. When it's the middle of summer, your outdated and leaky windows could be making your home more difficult to cool and costing you more in power bills.
That's not great for either your bank account or the environment, but one of the top window installation companies can help with that.
As windows have such a big impact on your home, choosing the right company for you is a big choice to make. That's why the EcoWatch team has curated this list of the best window installation companies, so you can make an informed decision more easily.
Best Overall
Renewal by Andersen
- Award-winning company
- Manufactures products in-house
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- EnergyStar Partner
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Wide variety of products and services
- Manufactures products in-house
- Lifetime warranty
- Quality of service will depend on your area
Best Window Replacement Companies in St Clair
The EcoWatch team examined several installers in St Clair to find the best ones for our readers. The providers mentioned in this article scored best in our review categories, which include energy-efficient offerings, availability, price, local expertise, customer service and more.

Renewal by Andersen
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Award-winning company
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Manufactures products in-house
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Member of US Green Building Council
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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. Andersen has around 27 years of experience in the window installation industry. Its reputation is backed by many positive reviews on customer review websites.
Andersen may be the company for you if you want 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 has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want 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 St Clair?Andersen doesn't have any cost 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. For more detailed information on pricing, you can request a quote from the company.

Window World
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EnergyStar Partner
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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 industry, and it currently provides services to 200 locations nationwide.
Window World may be the company for you if you're looking for one that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsThere are a wide range of window types available from Window World, 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 St Clair?While pricing is not available on Window World's website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

Universal Windows Direct
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Wide variety of products and services
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Manufactures products in-house
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Lifetime warranty
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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 been in the window installation business for about 20 years. Its reputation is backed by hundreds of positive reviews on customer review websites.
If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the perfect provider for you.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you 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 St Clair?Universal does not outline prices on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Getting a free quote on its website is the best way to know for sure.

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 provides the best residential windows in St Clair. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This window installation company has been operating since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by several positive reviews from customers online.
It has established itself as a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so make sure to ask your Window Nation representative when inquiring about services.
How much does Window Nation cost in St Clair?Window Nation does not list prices 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. For more detailed information on the cost, you can ask for a quote from the company.
We strive to be unbiased and transparent by listing pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Replacement Companies in St Clair
The Glass Guru
Wentzville, MO-
Free Quotes
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Excellent Customer Service
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Helps Educate Customers
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Locally Recognized for Quality
Services Offered
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Residential Windows
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Glass Showers
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Double-Hung
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Sliding Glass
Storm Guard Roofing and Construction St Louis West County
Pacific, MO-
Arrives on Time
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Dependable Service
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Price Transparency
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Stained Glass
Wildwood Roofing & Construction
Ellisville, MO-
Helps Educate Customers
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Arrives on Time
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Award-Winning
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Good Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Freedom Restoration & Roofing
Warrenton, MO-
Excellent Customer Service
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Free Quotes
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No-Hassle Pricing
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Reliable Service
Services Offered
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Residential Windows
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
Spectrum Glass & Tinting
O'Fallon, MO-
Good Customer Service
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Price Transparency
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Reliable Service
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No-fee Quotes
Services Offered
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Residential Windows
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Fast Delivery
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Custom Windows
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Sliding Glass
All About Glass
Arnold, MO-
No-Hassle Pricing
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Dependable Service
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No-fee Quotes
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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
Building Envelope Experts
Fenton, MO-
Timely Service
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Reliable Service
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Helps Educate Customers
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Price Transparency
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Clear Window Technology
Ballwin, MO-
Locally Recognized for Quality
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Excellent Customer Service
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No-Hassle Pricing
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Free Quotes
Services Offered
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Architectural Glass
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Custom Window Designs
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Full-Service Installations
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Double-Hung
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Bay Windows
Lakeside Renovation & Design
Chesterfield, MO-
Educational Website
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Excellent Customer Service
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Price Transparency
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Timely Service
Services Offered
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Custom Windows
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Full-Service Installations
Gateway Glass
10+ years in business · Pacific, MO-
Free Quotes
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Consistent Workmanship
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Helps Educate Customers
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No-Hassle Pricing
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-
Arrives on Time
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Consistent Workmanship
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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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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Alenco Inc.
Fenton, MO-
No-fee Quotes
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Dependable Service
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Good Customer Service
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Reliable Appointment Windows
Services Offered
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Custom Window Designs
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Glass Showers
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Sliding Glass
Pierce Window & Door
St Clair, MO-
Good Customer Service
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Consistent Workmanship
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Free Quotes
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Reliable Appointment Windows
Services Offered
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Custom Window Designs
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Sliding Glass
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Double-Hung
A Pane In The Glass
St Charles, MO-
Reliable Appointment Windows
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No-Hassle Pricing
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Excellent Customer Service
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Reliable Service
Services Offered
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Custom Windows
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Residential Windows
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Aluminum Window Frames
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Business Windows
Casey Exteriors
Arnold, MO-
Educational Website
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Locally Recognized for Quality
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Excellent Customer Service
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Price Transparency
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
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Double-Hung
Lindsay Windows Missouri
Union, MO-
Helps Educate Customers
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Free Quotes
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Commercial Windows
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Sliding Glass
JK Exteriors LLC
High Ridge, MO-
Free Quotes
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Price Transparency
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Excellent Customer Service
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Educational Website
Services Offered
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Residential Windows
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
Maris Home Improvements
Chesterfield, MO-
Timely Service
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Good Customer Service
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Reliable Service
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Double-Hung
Champion Replacement Windows of St. Louis
Fenton, MO-
Free Quotes
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Price Transparency
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Locally Recognized for Quality
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Sliding Glass
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Double-Hung
Presleys Glass
Pacific, MO-
Dependable Service
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Educational Website
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No-Hassle Pricing
Services Offered
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Aluminum Window Frames
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Architectural Glass
JH Exteriors LLC
Imperial, MO-
Price Transparency
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Arrives on Time
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Reliable Service
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Good Customer Service
Services Offered
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Custom Window Designs
Pella Windows & Doors of Greater St. Louis
Chesterfield, MO-
Excellent Customer Service
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Helps Educate Customers
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Free Quotes
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Sliding Glass
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Commercial Windows
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Double-Hung
Metropolitan Glass Company
Manchester, MO-
No-fee Quotes
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Educational Website
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Price Transparency
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Double-Hung
Martin Glass Company
St. Louis, MO-
Price Transparency
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Excellent Customer Service
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Custom Windows
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Residential Windows
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Full-Service Installations
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Sliding Glass
Coldstream Exteriors
St. Louis, MO-
Helps Educate Customers
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No-fee Quotes
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Award-Winning
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Excellent Customer Service
Services Offered
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Custom Windows
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Residential Windows
EZ Home Solutions
O'Fallon, MO-
No-Hassle Pricing
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Reliable Service
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Educational Website
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Good Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
Franklin County Glass
Washington, MO-
Educational Website
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Excellent Customer Service
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Free Quotes
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
Eclipse Window Tinting Inc.
Crystal City, MO-
No-Hassle Pricing
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Educational Website
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Consistent Workmanship
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
How Installing Energy-Efficient Windows in St Clair Saves You Money
By switching to energy-efficient windows, you can take advantage of several benefits, including:
- Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less because of their ability to filter out harmful UV rays.
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can make your home more comfortable and also help raise the value of your house 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% since you'll require less energy to heat or cool your house.
- Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can reduce your indirect greenhouse gas emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in St Clair
Windows come in varying shapes, purposes and styles, so costs and services will vary considerably depending on several factors. Below, we detail the typical cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
According to our market research, the national average cost to install a single window is about $600. However, window replacement costs can range from $200 to $1,200 per window. How much it will cost you depends on several factors, like type, the location of your home, number of windows, size, material and more.
It's important to note that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in certified energy-efficient windows can save St Clair homeowners $374+ a year when replacing single-pane windows.
Costs will also vary depending on the material of your frame. Aluminum frames are the least expensive. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
When it comes to window replacements, in general there are two kinds that your provider will have: full-frame and pocket installations.
Full-frame installations are usually recommended when you want to change the style of your windows or your window has a lot of rot or deterioration. With this service, your professionals will replace the whole window, including the sill, trim and frame. A pocket installation involves replacing a window without replacing the frame. So, instead of taking out the whole unit and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.
If you're still trying to decide which kind of installation you need, you can ask your installer and get their recommendation. The choice mostly is influenced by how old the frames are and if there's any damage present.
Best Overall
Renewal by Andersen
- Award-winning company
- Manufactures products in-house
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- EnergyStar Partner
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Wide variety of products and services
- Manufactures products in-house
- Lifetime warranty
- Quality of service will depend on your area
How We Choose the Best Window Installers in St Clair
EcoWatch reviews are different from most reviews because we examine these companies through a sustainability lens. We have evaluated the top window installers in St Clair mainly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows can reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Because this is a guide for St Clair, we only included companies that serve 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 St Clair.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each company on this list to ensure its contractors are well-qualified and that the company has gotten lots of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If the majority of customers don't have nice things to say about their experience with a certain window installation company, it won't be featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing providers' prices, we gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of St Clair's climate, homeowners will want to mitigate water damage, low efficiency and rot. We factored in local experience to reflect the ability of St Clair window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
St Clair, MO Window Replacement FAQs
How much should a window install cost?
The national average cost to install one window is about $600 but can range between $200 and $1,200, based on several factors. The price is usually dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What type of window is the best for energy efficiency?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open are more efficient than windows that do. If you want to be sure you'll get the most energy-efficient windows, look for models with the blue Energy Star certification — this means they're certified energy-efficient by the U.S. Department of Energy.
Can you install your own windows?
Although it is possible to install your own windows, doing so is time-consuming and requires a lot of handiness. Hiring a professional can help guarantee that the installation 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?
Although you can install windows any time of year, warmer weather is generally better for installing replacement windows. In addition, the weather should be dry, as rain can make the installation more difficult.
Should I replace all my windows at once?
If you want to get more efficient windows and save money on your energy bills, replacing all the windows at the same time is the only way to gain that benefit. On the other hand, if you have just a few windows that are broken or drafty, you can replace just those.