23 Best Window Replacement Companies in St Peters, MO (Feb 2023)
Window Companies Near Me
If you're thinking of upgrading to new windows, our guide to the best window installation companies can help.
We analyzed all the top window installers in St Peters and selected the top 23 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated January 12, 2023
Why you can trust EcoWatch
Although environmentally friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house's efficiency can also have a large impact on home energy conservation. If your house has traditional, outdated windows, your HVAC system could be working overtime to heat or cool your home. This means higher power bills.
Replacement windows improve the insulation in your home, not only making you more comfortable during extreme temperatures, but also saving you money and helping the environment.
So if you're constructing a new home, renovating or replacing your windows in St Peters, this is the best place to get started.
Best Affordability
Window World
- Low prices relative to competitors
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Member of US Green Building Council
- No lifetime warranty
Best for Residential Windows
Window Nation
- Custom designs
- Award-winning company
- Manufactures products in-house
- Installation not covered by warranty
Best Window Replacement Companies in St Peters
The EcoWatch Reviews team examined dozens of installers across the country to find the best window installation companies for our readers. The providers in this article scored the best in our review categories, such as energy-efficient offerings, price, availability, customer service, local expertise and more.

Window World
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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 been in the window installation business for around 27 years.
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 company for you.
Energy Efficiency of Window World WindowsThere are a wide variety 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 St Peters?Though prices are not available on Window World's website, it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to receive a free quote from the company.

Renewal by Andersen
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Manufactures products in-house
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Award-winning company
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Member of US Green Building Council
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No lifetime warranty
Renewal by Andersen offers the best availability in St Peters. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for around 27 years. Hundreds of positive reviews from customers online back the provider's reputation.
It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in St Peters?Prices aren't displayed on Andersen's website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can request a free quote on its website for more information about the cost.

Window Nation
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Custom designs
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Award-winning company
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Manufactures products in-house
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Installation not covered by warranty
Window Nation has the best residential windows in St Peters. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has about 16 years of industry experience, and it currently serves residents within 75 miles of its showrooms, which are in 13 states. The company has plenty of glowing reviews from customers online.
Window Nation may be the company for you if you're looking for 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 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 St Peters?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. For more detailed information on pricing, you can get a quote from the company.

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. This company has been in business since 2002 and currently serves 27 states nationwide. The provider has a lot of glowing reviews from customers online.
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 company for you.
Energy Efficiency of Universal Windows Direct WindowsThe 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. Not all of Universal's windows are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Universal Windows Direct cost in St Peters?Universal does not list prices on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Receiving a free quote on its website is the best way to get more accurate pricing information.
We've recommended companies with good reputations, but note that these are national companies, so the quality of service may depend on your local crew. We have tried to be unbiased and transparent by including pros and cons for every company we reviewed.
More Window Replacement Companies in St Peters
The Glass Guru
Wentzville, MO-
Free Quotes
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Price Transparency
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Arrives on Time
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Reliable Service
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-
Consistent Workmanship
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No-fee Quotes
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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 Windows
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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-
Excellent Customer Service
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Award-Winning
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Helps Educate Customers
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Consistent Workmanship
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Window World of St. Louis
Bridgeton, MO-
Free Quotes
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Price Transparency
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Helps Educate Customers
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Reliable Service
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Chaney Windows And Doors
Maryland Heights, MO-
Free Quotes
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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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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Renewal by Andersen of St. Louis
Maryland Heights, MO-
Price Transparency
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Good Customer Service
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Helps Educate Customers
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Charitable Giving
Services Offered
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Energy-Efficient Options
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Custom Windows
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Full-Service Installations
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Double-Hung
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Sliding Glass
Freedom Restoration & Roofing
Warrenton, MO-
Good Customer Service
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Locally Recognized for Quality
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Educational Website
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No-fee Quotes
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Empire Supply Co
St. Louis, MO-
No-Hassle Pricing
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No-fee Quotes
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Excellent Customer Service
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Educational Website
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Energy View Windows - Home Improvements
Hazelwood, MO-
Good Customer Service
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Price Transparency
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Locally Recognized for Quality
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Educational Website
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Aluminum Window Frames
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Energy-Efficient Options
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Architectural Glass
Spectrum Glass & Tinting
O'Fallon, MO-
Excellent Customer Service
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Price Transparency
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Dependable Service
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Free Quotes
Services Offered
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Sliding Glass
All About Glass
Arnold, MO-
Price Transparency
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Free Quotes
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Reliable Service
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Excellent 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 Window Designs
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
Masonry & Glass Systems Inc
St. Louis, MO-
Consistent Workmanship
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Excellent Customer Service
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Locally Recognized for Quality
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Glass Showers
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Sliding Glass
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Double-Hung
Window Nation
Overland, MO-
Consistent Workmanship
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Good Customer Service
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Free Quotes
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No-Hassle Pricing
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Sears Window Replacement
Bridgeton, MO-
Award-Winning
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Good Customer Service
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Free Quotes
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Educational Website
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
STL Windows and Doors
St. Louis, MO-
Helps Educate Customers
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Good Customer Service
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Free Quotes
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Reliable Service
Services Offered
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Double-Hung
Building Envelope Experts
Fenton, MO-
Good Customer Service
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Free Quotes
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Reliable Service
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Educational Website
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Missouri Glass Company
St. Louis, MO-
Reliable Appointment Windows
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Consistent Workmanship
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No-Hassle Pricing
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Helps Educate Customers
Services Offered
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Residential Windows
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Heavy Glass
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Tempered Glass
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Custom Windows
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Business Windows
Clear Window Technology
Ballwin, MO-
Free Quotes
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Locally Recognized for Quality
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Excellent Customer Service
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Consistent Workmanship
Services Offered
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Architectural Glass
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Custom Windows
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Full-Service Installations
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Double-Hung
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Bay Windows
Lakeside Renovation & Design
Chesterfield, MO-
Educational Website
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Award-Winning
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Dependable Service
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Price Transparency
Services Offered
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Custom Window Designs
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Full-Service Installations
Gateway Glass
10+ years in business · Pacific, MO-
Excellent Customer Service
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Reliable Service
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Free Quotes
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Helps Educate Customers
Services Offered
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Fast Delivery
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Tempered Glass
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Custom Window Designs
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Double-Hung
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Sliding Glass
Alenco Inc.
Fenton, MO-
Price Transparency
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No-fee Quotes
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Reliable Service
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Reliable Appointment Windows
Services Offered
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Custom Windows
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Glass Showers
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Sliding Glass
Banner Construction
St. Louis, MO-
No-Hassle Pricing
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No-fee Quotes
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Dependable Service
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Arrives on Time
Services Offered
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Custom Window Designs
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Full-Service Installations
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Double-Hung
Jacob Sunrooms, Exteriors & Baths
Fairview Heights, IL-
No-Hassle Pricing
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Reliable Appointment Windows
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Reliable Service
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Good Customer Service
Services Offered
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Custom Windows
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Energy-Efficient Options
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Double-Hung
How Installing Energy-Efficient Windows in St Peters Saves You Money
Switching to energy-efficient windows can improve the comfort of your home and help you save on power bills. Here's more information on how switching out your windows could help you:
- Save on power bills: Switching to energy-efficient windows reduces your energy bills by about 12% since you need less energy.
- Decrease your carbon footprint: Reducing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 763 pounds per year on average.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help raise the value of your house if you decide to sell.
Estimated Cost of Window Replacement in St Peters
Windows come in different shapes and sizes, so costs and services will differ remarkably. Here are the typical costs and services that you'll find from the average window installation company.
How Much Do New Windows Cost?
On average, homeowners in St Peters can anticipate that most window installations will range from $250 to $1,200, with the most common installations sitting at about $600. These amounts are based on specific characteristics of your installation, including number of windows, material, the location of your home, size, type and more.
It's also worth noting that energy-efficient windows will usually cost more upfront, but Energy Star estimates that switching out the windows on your St Peters home translates to an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. How much you'll save by switching to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
We advise getting free quotes from several window companies to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
The first step of a replacement is to decide whether you should get a full-frame or pocket installation.
Full-frame installations are usually recommended when you want to change the style of your windows or your window has significant rot or deterioration. With this service, your professionals will replace the complete window, including the frame, sill and trim. Pocket installations (also known as retrofits) are when you replace a window while leaving the existing frame. Pocket installations are on the simpler end and will be less expensive, but you can't do this kind of installment if you have any pre-existing rot or water damage.
Your window installation company should be able to help you figure out which type of installation you should get.
Best Affordability
Window World
- Low prices relative to competitors
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Member of US Green Building Council
- No lifetime warranty
Best for Residential Windows
Window Nation
- Custom designs
- Award-winning company
- Manufactures products in-house
- Installation not covered by warranty
How We Choose the Best Window Installers in St Peters
The EcoWatch Reviews team differs from most reviewers, as we look at these companies through a sustainability lens. Along with energy efficiency, we analyzed each installer and assigned rankings based on the following methodology:
Service Area
Because this is a guide for St Peters, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn't make the list because they wouldn't be able to serve homeowners in St Peters.
Work Quality
When it comes to new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand 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
We analyzed patterns in recent online reviews to find the companies with the most customer satisfaction. Customer satisfaction might be the most important factor, as it reflects the quality of services across most other categories, including warranty, quality of installation, cost, professionalism, quality of parts and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing providers' prices, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a sizable investment, so you'll want to be certain that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for quite some time. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
St Peters, MO Window Replacement FAQs
How much does a window install cost?
The national average cost to replace a single window is around $600 but can range between $200 and $1,200, based on several factors. The price is typically dependent on the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What are the most common types of replacement windows?
The most common kinds of windows for homes are double-hung and single-hung windows, bay windows, casement windows, transom windows, awning windows, slider windows and picture windows.
What services do window replacement companies do?
Window installation professionals travel to your home to remove your old windows and replace them with new ones. Some providers install products made by other companies, whereas others install their own windows. The installer will also clean up after the installation.
How long does it generally take to install windows?
Each window takes about 30 minutes to install based on the kind of window. However, the window installation can be a two-day job — or more — if you have a lot of windows that must be installed.
When is the best time of year to replace windows?
Replacement windows can be installed at any time, but warmer weather is typically better. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into the home, so the temperature outside isn't necessarily a big factor. Most importantly, the weather should be dry.