21 Best Window Replacement Companies in Weldon Spring, MO (Feb 2023)
Window Companies Near Me
When you need to replace your windows, our guide to the top window installation companies can help you find the right provider for you.
We analyzed all the top window installers in Weldon Spring and selected the top 21 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
A guide on the top window replacement companies in Weldon Spring may not seem like the most captivating article on the EcoWatch site, but trust us, windows impact your life more than you might think. When it's the middle of summer, your old and leaky windows could be making your home more difficult to cool and costing you more in power bills.
Thankfully, saving you money with efficient windows also helps our goals of reducing energy usage for the environment.
Efficient windows are particularly important in Weldon Spring, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $308 a year.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Member of US Green Building Council
- No lifetime warranty
Best Affordability
Window World
- Lifetime warranty
- EnergyStar Partner
- Low prices relative to competitors
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Manufactures products in-house
- Makes charitable contributions
- Lifetime warranty
- Quality of service will depend on your area
Best Window Replacement Companies in Weldon Spring
The EcoWatch team assessed dozens of window providers across Weldon Spring to narrow our list down to the best ones. We assessed the installers based on energy-efficient offerings, local experience, coverage area, price, customer service and more.

Renewal by Andersen
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Manufactures products in-house
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Great industry reputation
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Member of US Green Building Council
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No lifetime warranty
Renewal by Andersen provides the best availability in Weldon Spring. Andersen has been in the window business for about 27 years. Its reputation is backed by a considerable amount of 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 carries 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 Weldon Spring?Prices aren't listed 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. If you'd like to know for sure, you can receive a quote on the company's website.

Window World
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Lifetime warranty
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EnergyStar Partner
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Low prices relative to competitors
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Quality of service will depend on your area
Window World offers windows expertise in Weldon Spring. Window World has been in the window industry for around 27 years. Its reputation is backed by all the positive reviews from customers online.
It has established itself as a company 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 WindowsWindow World is an Energy Star partner and offers a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in Weldon Spring?Window World doesn't have any prices available on its website, but 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.

Universal Windows Direct
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Manufactures products in-house
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Makes charitable contributions
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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 about 20 years of experience in the window replacement industry.
You may want to consider choosing Universal if you're interested in a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Weldon Spring?Universal doesn't have any prices available 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. You can inquire about a free quote on its website for more information about pricing.

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 Weldon Spring. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has 16 years of experience in the windows industry, and it has established itself as one of the most reputable companies in the business. Hundreds of positive reviews on customer review websites back the company's reputation.
It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsEach 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. Not all of Window Nation's offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Window Nation cost in Weldon Spring?Window Nation doesn't have any prices listed 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 pricing.
We strive to be unbiased and transparent by listing pros and cons for every provider. Additionally, any partnerships do not influence our reviews.
More Window Replacement Companies in Weldon Spring
The Glass Guru
Wentzville, MO-
Award-Winning
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Good Customer Service
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No-fee Quotes
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Timely 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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Commercial Windows
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Double-Hung
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Sliding Glass
Storm Guard Roofing and Construction St Louis West County
Pacific, MO-
Consistent Workmanship
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No-Hassle Pricing
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Helps Educate Customers
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Award-Winning
Services Offered
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Residential Windows
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Architectural Glass
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Fast Delivery
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Stained Glass
Wildwood Roofing & Construction
Ellisville, MO-
Award-Winning
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Reliable Service
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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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-
No-fee Quotes
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Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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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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Double-Hung
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Sliding Glass
Chaney Windows And Doors
Maryland Heights, MO-
No-fee Quotes
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Award-Winning
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Educational Website
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Excellent Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Renewal by Andersen of St. Louis
Maryland Heights, MO-
Arrives on Time
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No-fee Quotes
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Price Transparency
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Gives to charity
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-
Award-Winning
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No-fee Quotes
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Helps Educate Customers
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Dependable Service
Services Offered
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Residential Windows
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
Empire Supply Co
St. Louis, MO-
Good Customer Service
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Educational Website
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Free Quotes
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No-Hassle Pricing
Services Offered
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Residential Windows
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Energy-Efficient Options
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Tempered Glass
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Energy View Windows - Home Improvements
Hazelwood, MO-
Award-Winning
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No-fee Quotes
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Helps Educate Customers
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Price Transparency
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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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-
No-Hassle Pricing
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Dependable Service
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Good Customer 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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Business Windows
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Double-Hung
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Sliding Glass
All About Glass
Arnold, MO-
Excellent Customer Service
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Consistent Workmanship
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Free Quotes
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No-Hassle Pricing
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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Business Windows
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Sliding Glass
Masonry & Glass Systems Inc
St. Louis, MO-
Price Transparency
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Excellent Customer Service
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Dependable Service
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No-fee Quotes
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-
Good Customer Service
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No-fee Quotes
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No-Hassle Pricing
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Reliable Service
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
Sears Window Replacement
Bridgeton, MO-
Excellent Customer Service
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Helps Educate Customers
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Price Transparency
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Free Quotes
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
STL Windows and Doors
St. Louis, 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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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-
Dependable Service
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No-fee Quotes
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Reliable Appointment Windows
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Educational Website
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
Missouri Glass Company
St. Louis, MO-
Consistent Workmanship
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Price Transparency
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Arrives on Time
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Educational Website
Services Offered
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Residential Windows
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Heavy Glass
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Tempered Glass
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Custom Window Designs
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Commercial Windows
Clear Window Technology
Ballwin, MO-
Locally Recognized for Quality
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No-fee Quotes
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Good Customer Service
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Dependable Service
Services Offered
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Architectural Glass
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Custom Windows
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Full-Service Installations
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Double-Hung
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Bay & Bow Windows
Lakeside Renovation & Design
Chesterfield, MO-
Locally Recognized for Quality
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No-Hassle Pricing
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Custom Windows
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Full-Service Installations
Gateway Glass
10+ years in business · Pacific, MO-
Price Transparency
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Educational Website
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Reliable Service
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Good Customer Service
Services Offered
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Fast Delivery
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Tempered Glass
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Custom Windows
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Double-Hung
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Sliding Glass
Alenco Inc.
Fenton, MO-
Good Customer Service
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Reliable Appointment Windows
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No-Hassle Pricing
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Free Quotes
Services Offered
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Custom Windows
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Glass Showers
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Sliding Glass
How Installing Energy-Efficient Windows in Weldon Spring Saves You Money
Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here's more information on how switching out your windows could benefit you:
- Save money on electricity bills: Installing energy-efficient windows lowers your energy bills by about 12% because you use less energy.
- Decrease your carbon footprint: By using less energy after upgrading to energy-efficient windows, you'll also be reducing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes tend to have windows that are outdated, leaky or potentially even damaged in some way. Updating your windows could help increase the value of your property if you decide to sell.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Weldon Spring
Windows come in different shapes and sizes, so costs and services will vary tremendously. Here are the typical costs and the primary services that you can find from the average window installation company.
How Much Do New Windows Cost?
Though the typical of replacing one window is about $600, it can range anywhere from $200 to $1,200. These amounts vary based on specific characteristics of your installation, including size, number of windows, the location of your home, material, type and more.
Bear in mind that energy-efficient windows may have a higher price, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you replace single-pane windows and between $27 and $197 per year when you replace double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.
Requesting free quotes from multiple installers is the best way to figure out which one is right for you.
What Services do Window Installers Offer?
In general, there are two types of window installation services you can get: full-frame and pocket installations.
Full-frame installations are necessary when you want a new style or your window has significant deterioration. With this service, your professionals will replace the total window, including the trim, sill and frame. Pocket installations (or retrofits) involve installing a new window within its existing frame, which makes pocket installations less labor-intensive and costly. However, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.
If you're not sure which kind of window installation service you need, your installer can advise you. Typically, the decision is based on factors such as the age and condition of the home, the type of building material, budget and time restrictions.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Member of US Green Building Council
- No lifetime warranty
Best Affordability
Window World
- Lifetime warranty
- EnergyStar Partner
- Low prices relative to competitors
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Manufactures products in-house
- Makes charitable contributions
- Lifetime warranty
- Quality of service will depend on your area
How We Choose the Best Window Installers in Weldon Spring
In our hunt to find the most reliable, eco-friendly window installers in Weldon Spring, the EcoWatch Reviews team examined many companies before settling on these. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings based on the following methodology:
Service Area
Since this is a guide for Weldon Spring, we paid more attention to companies that provide services to the city. There are other reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in Weldon Spring.
Work Quality
When picking new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand of window you get. We do give window installers higher marks 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 determine the companies with the most customer satisfaction. Customer satisfaction may be the most important factor, as it reflects the quality of services across most other categories, including quality of installation, quality of parts, warranty, professionalism, cost 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 scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. That's why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for a while. Window installers that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Weldon Spring, MO Window Replacement FAQs
How much should a window install cost?
The national average cost to install a window is about $600 but can range between $200 and $1,200, depending on a few different factors. The price is often dependent on the type and material of the window, the size of the window and the location of your property. Also, bear in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What are the kinds of windows?
The most common types of windows for homes include: awning windows, bay windows, double-hung and single-hung windows, transom windows, picture windows, slider windows and casement windows.
When do I have to use a window installation company?
Unless you have home repair skills and have the time needed to replace your own windows, we recommend hiring a professional installer. The process of installing windows is complicated and can take anywhere from four to six hours for one window. Although it's tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and much safer alternative.
When is the best time of year to replace 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 make sure that too much hot or cold air doesn't get into your home, so the temperature outside isn't necessarily a big factor. What's more important than the temperature is that the weather should be dry.
How do you know it's time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to open or close, they may need to be replaced.