23 Best Window Replacement Companies in Ofallon, IL (Jan 2023)
Window Companies Near Me
Thinking about improving your home's appearance? The best window replacement companies can help.
We analyzed all the top window installers in Ofallon 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
Whether you're doing renovations or have windows that need repairs, windows play a crucial role in conserving electricity in your home. When it's the middle of summer, your outdated and leaky windows could be making your home harder to cool and more uncomfortable for you.
Replacement windows improve your home's insulation, not only making you more comfortable during extreme temperatures, but also saving you money and helping the environment.
Efficient windows are particularly important in Ofallon, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $289 each year.
Best Affordability
Window World
- Lifetime warranty
- Large serice area
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Award-winning company
- No lifetime warranty
Best Warranty
Universal Windows Direct
- Manufactures products in-house
- Wide variety of products and services
- Lifetime warranty
- Some installations carried out by third-party contractors
Best Window Replacement Companies in Ofallon
The EcoWatch team evaluated several window installation companies across Ofallon to narrow our list down to the top ones. The providers we've mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

Window World
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Lifetime warranty
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Large serice area
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Low prices relative to competitors
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Quality of service will depend on your area
Window World has windows expertise in Ofallon. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the window replacement industry.
Window World may be the company for you if you're interested in 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 WindowsWindow World's commitment to sustainability can be seen in its energy-efficient window offerings. 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 Ofallon?Prices aren't mentioned on Window World's website, but it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can receive a quote from the company.

Renewal by Andersen
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Great industry reputation
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Member of US Green Building Council
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Award-winning company
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No lifetime warranty
Renewal by Andersen has the best availability in Ofallon. Andersen has about 27 years of experience in the window replacement sector. The provider has hundreds of glowing reviews from customers on online review websites.
You may want to consider going with Andersen if you're looking for a installer that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Ofallon?Andersen does not display prices 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. Requesting a free quote on its website is the best way to get more accurate pricing information.

Universal Windows Direct
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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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Some installations carried out by third-party contractors
Universal Windows Direct has the best warranty in Ofallon. It's 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 provides services to 27 states nationwide. Its reputation is backed by many positive 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 right provider 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 be sure to mention that you'd like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Ofallon?Universal does not display 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. The best way to get more accurate information is to get a free quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This provider has 16 years of experience in the window installation industry, and it has established itself as one of the best companies in Ofallon. The company has hundreds of positive reviews from customers on online review websites.
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 caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Ofallon?Window Nation does not display 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 accurate information on pricing, you can inquire about a quote from the company.
We aim to stay unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.
More Window Replacement Companies in Ofallon
Window World of St. Louis
Bridgeton, MO-
Price Transparency
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No-fee Quotes
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Helps Educate Customers
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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-
Price Transparency
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No-fee Quotes
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Excellent Customer Service
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Award-Winning
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
Mr. Handyman of Metro East
Collinsville, IL-
No-Hassle Pricing
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Helps Educate Customers
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Good Customer Service
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Award-Winning
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Renewal by Andersen of St. Louis
Maryland Heights, MO-
Educational Website
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Price Transparency
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Arrives on Time
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No-fee Quotes
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
Lowe's Home Improvement
Belleville, IL-
No-Hassle Pricing
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Free Quotes
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Reliable Appointment Windows
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Dependable Service
Services Offered
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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
Empire Supply Co
St. Louis, MO-
No-Hassle Pricing
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Free 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
Glass & More Inc. Low price glass repair!
Belleville, IL-
No-fee Quotes
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Helps Educate Customers
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Excellent Customer Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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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
Energy View Windows - Home Improvements
Hazelwood, MO-
Helps Educate Customers
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Award-Winning
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Price Transparency
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Free Quotes
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
All About Glass
Arnold, MO-
No-Hassle Pricing
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No-fee 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 Windows
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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-
Price Transparency
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Good Customer Service
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Educational Website
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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-
Dependable Service
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Award-Winning
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No-Hassle Pricing
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Good Customer 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-
Free Quotes
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Excellent Customer Service
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Dependable Service
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Helps Educate Customers
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-
No-Hassle Pricing
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Timely Service
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Excellent Customer Service
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Helps Educate Customers
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-
Excellent Customer Service
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Price Transparency
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No-fee Quotes
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Dependable Service
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-
Price Transparency
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Dependable Service
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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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Heavy Glass
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Tempered Glass
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Custom Window Designs
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Business Windows
Clear Window Technology
Ballwin, MO-
Free Quotes
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No-Hassle Pricing
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Dependable Service
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Award-Winning
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
Glass America
New Baden, IL-
No-Hassle Pricing
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Good Customer Service
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Locally Recognized for Quality
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Arrives on Time
Services Offered
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Custom Window Designs
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Business Windows
Alenco Inc.
Fenton, MO-
Free Quotes
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No-Hassle Pricing
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Consistent Workmanship
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Arrives on Time
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-
Helps Educate Customers
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Price Transparency
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Reliable Appointment Windows
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Dependable Service
Services Offered
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Custom Windows
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Full-Service Installations
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Double-Hung
Jacob Sunrooms, Exteriors & Baths
Fairview Heights, IL-
Award-Winning
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Excellent Customer Service
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No-fee Quotes
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Arrives on Time
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Winco Window Company
St. Louis, MO-
Good Customer Service
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Free Quotes
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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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
Millstadt Glass Inc
Millstadt, IL-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Residential Windows
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Glass Showers
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Fast Delivery
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Tempered Glass
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Custom Window Designs
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Business Windows
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Sliding Glass
Metropolitan Glass
Florissant, MO-
Good Customer Service
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Consistent Workmanship
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Price Transparency
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Educational Website
Services Offered
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Custom Windows
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Residential Windows
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Tempered Glass
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Sliding Glass
How Installing Energy-Efficient Windows in Ofallon Saves You Money
There are quite a few benefits of switching to energy-efficient windows. Some reasons you may want to consider making the switch include the following:
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% when you install Energy Star certified windows. In Ofallon, that's about 642 pounds per year on average.
- Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent damage from the sun's UV rays to your floors, carpets and furniture.
- Save on energy bills: Since energy-efficient windows decrease the amount of energy needed to heat or cool your home, the switch can help you save about $289 annually on your energy bills in Ofallon.
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to have windows that are outdated, leaky or maybe even damaged in some way. Updating your windows could help raise the value of your property if you decide to sell.
Estimated Cost of Window Replacement in Ofallon
Windows come in varying purposes, shapes and styles, so costs and services will vary greatly based on your project. Below, we go over the average cost and services that you'll find from window installation companies.
How Much Do New Windows Cost?
Typically, homeowners in Ofallon can expect that most window installations will cost between $250 and $1,200, with the average cost at about $600. But costs will differ considerably based on your location, the number of windows you need, the current condition of your home and the quality of your products. Many window companies also offer door installations and other add-ons like baths, shutters, coating and more. These extra services will increase your overall project costs.
Keep in mind that energy-efficient windows may have a higher price, but Energy Star estimates the upgrade will save you between $101 and $583 a year when you replace single-pane windows and between $27 and $197 a year when you replace double-pane, clear glass windows. Your exact savings will vary depending on your local climate, energy rates and individual home characteristics.
Getting free quotes from multiple companies is the best way to find out which one is right for you.
What Services do Window Installers Offer?
Generally, there are two types of window installation services companies offer: full-frame and pocket installations.
A full-frame installation replaces the complete window, including the windowsill, frame, trim and the window panes. As this type of installation requires more time, it will cost more than a pocket installation. Pocket installations are on the simpler end and won't carry as large a bill because they involve simply replacing the window within its existing frame. But if the frame has any damage or rot, you may have to get a full-frame installation instead.
If you're still debating which kind of installation you need, you can ask your provider and get their advice. The choice mostly is influenced by the age of your window frames and if there's any damage.
Best Affordability
Window World
- Lifetime warranty
- Large serice area
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Award-winning company
- No lifetime warranty
Best Warranty
Universal Windows Direct
- Manufactures products in-house
- Wide variety of products and services
- Lifetime warranty
- Some installations carried out by third-party contractors
How We Choose the Best Window Installers in Ofallon
In our hunt to find the most reliable, eco-friendly window installers in Ofallon, the EcoWatch Reviews team examined dozens of companies before settling on these. Along with energy efficiency, we assessed several window installers in Ofallon and ranked them using the following methodology:
Service Area
This one is self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find a quality window installation company near you.
Work Quality
We're willing to bet that you're looking for a company to do a great job installing windows. We've vetted each company included in our guide to make sure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to determine the companies with the most consistent customer satisfaction. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across most other categories, including quality of installation, quality of parts, professionalism, warranty, cost and more.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies are not going to provide the highest quality service. Still, we want to make sure we're highlighting companies that provide a range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed, windows are a sizable investment, so you'll want to make sure that investment is well protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a good track record in the industry. Window installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Ofallon, IL Window Replacement FAQs
How much should a window install cost?
The average cost of replacing a single window ranges from $450 to $650. There are many factors that influence the cost, including local labor costs, the materials used in designing the windows, your property's location, the number of windows, how energy-efficient the windows are and styles and sizes of windows.
What are the most common types of replacement windows?
The most common types of windows for homes are casement windows, awning windows, bay windows, transom windows, picture windows, slider windows and double-hung and single-hung windows.
Can I install my own windows?
If you're handy and have the time and patience to do the job right, it's possible to install your own windows. But if you don't have the time or know-how, we recommend hiring a professional.
How often should you replace windows?
Windows usually have a lifespan of 20 to 30 years, but anytime you see damage on your windows, it's a good idea to have them checked by an expert to see if they need any repairs or replacements.
Should I replace all my windows at once?
If you're upgrading your windows to get more efficient windows, replacing all your windows at the same time is the only way to see a noticeable difference. However, if you have just one or two windows that are damaged or leaky, you can replace just those.