26 Best Window Replacement Companies in St Louis, MO (Feb 2023)
Window Companies Near Me

When the time comes to upgrade your windows, our list of the top window installation companies can help you find the right provider for you.

We analyzed all the top window installers in St Louis and selected the top 26 based on:

  • Customer reviews
  • Window replacement expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated January 12, 2023

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Although renewable energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home's efficiency can also have a big impact on home energy conservation. Potential leaks or drafts can cut your home's energy efficiency by up to 30%, according to the Department of Energy. In St Louis, that's around $331 a year that you could save on your electric bills after making the switch.

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.

Because windows are so important for your home, picking the best company for you is a big decision to make. That's why the EcoWatch team has made this list of the best window installation companies, so you can more easily make an informed decision.

Best Affordability

Window World

★★★★★
4.5

  • Great industry reputation
  • Large serice area
  • Lifetime warranty
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Award-winning company
  • Manufactures products in-house
  • More expensive than competition

Best Warranty

Universal Windows Direct

★★★★★
4

  • Makes charitable contributions
  • Lifetime warranty
  • Manufactures products in-house
  • Quality of service will depend on your area

Best Window Replacement Companies in St Louis

The EcoWatch Reviews team examined dozens of installers that serve the St Louis area to find the top window installation companies by our standards. We assessed the companies based on energy-efficient offerings, coverage area, price, customer service, local experience and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Large serice area
  • Pros icon Lifetime warranty
Cons:
  • Pros icon 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 about 27 years. The company has plenty of positive reviews from customers online.

It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

There 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 Louis?

Though prices are not readily available on Window World's website, it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to get more accurate pricing information.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon 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 replacement business. Its reputation is backed by hundreds of positive reviews on customer review websites.

It has established itself as a company 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 Windows

Renewal by Andersen caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Louis?

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. For more accurate information on pricing, you can get a quote from the company.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Lifetime warranty
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon Quality of service will depend on your area

Universal Windows Direct provides the best warranty in St Louis. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has around 20 years of experience in the window installation sector.

It has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

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. Not all of Universal's offerings are Energy Star certified, so make sure you mention that you'd like Energy Star windows when inquiring.

How much does Universal Windows Direct cost in St Louis?

Prices aren't available on Universal's 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 the cost.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This provider has 16 years of experience in the windows business, and it has become one of the best companies in the business. The provider has many positive reviews from customers online.

If you're looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, this may be the provider for you.

Energy Efficiency of Window Nation Windows

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. Not all of Window Nation's windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Window Nation cost in St Louis?

Pricing details are not available on Window Nation's website since the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, 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. The best way to get more accurate pricing information is to receive a free quote from the company.

One thing to note is that the following companies are national, meaning the quality of the service may vary depending on your local team. We have tried to remain unbiased and transparent by mentioning pros and cons for each provider.

More Window Replacement Companies in St Louis

Storm Guard Roofing and Construction St Louis West County

Pacific, MO
5
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Award-Winning
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Stained Glass

Website: https://swstlouis.stormguardrc.com/
Address: 114 E Orleans St, Pacific, MO 63069
Phone: (636) 778-9562

Wildwood Roofing & Construction

Ellisville, MO
4.8
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Locally Recognized for Quality
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.wildwoodroof.com/
Address: 437 Old State Rd, Ellisville, MO 63021
Phone: (636) 400-1011

Window World of St. Louis

Bridgeton, MO
4.0
★★★★★
  • Pros icon Arrives on Time
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.windowworldstlouis.com/
Address: 13892 St Charles Rock Rd, Bridgeton, MO 63044
Phone: (314) 993-1800

Chaney Windows And Doors

Maryland Heights, MO
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Locally Recognized for Quality

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: http://chaneywindowsanddoors.com/
Address: 80 Weldon Pkwy, Maryland Heights, MO 63043
Phone: (636) 699-6353

Mr. Handyman of Metro East

Collinsville, IL
3.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://www.mrhandyman.com/metro-east/
Address: 1309 Vandalia St, Collinsville, IL 62234
Phone: (618) 319-7256

Renewal by Andersen of St. Louis

Maryland Heights, MO
3.8
★★★★★
  • Pros icon Charitable Giving
  • Pros icon Educational Website
  • Pros icon Arrives on Time
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.rbastl.com/
Address: 2446 Schuetz Rd, Maryland Heights, MO 63043
Phone: (314) 983-9977

Lowe's Home Improvement

Belleville, IL
3.8
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Educational Website
  • Pros icon Free Quotes
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.google.com/aclk
Address: Belleville, IL
Phone: (618) 239-3908

Empire Supply Co

St. Louis, MO
3.8
★★★★★
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://empiresupplystl.com/
Address: 7286 Manchester Rd, St. Louis, MO 63143
Phone: (314) 645-2633

Glass & More Inc. Low price glass repair!

Belleville, IL
3.7
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.jimsglassandmore.com/
Address: 5400 N Belt W, Belleville, IL 62226
Phone: (618) 222-1197

Energy View Windows - Home Improvements

Hazelwood, MO
3.7
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon Award-Winning

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options
  • Service icon Architectural Glass

Website: http://www.energyviewhomeimprovements.com/
Address: 7220 N Lindbergh Blvd #350, Hazelwood, MO 63042
Phone: (314) 656-1437

Spectrum Glass & Tinting

O'Fallon, MO
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Reliable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.glassandwindows-mo.com/
Address: 955 W Terra Ln, O'Fallon, MO 63366
Phone: (636) 238-4315

All About Glass

Arnold, MO
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Heavy Glass
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.allaboutglassstl.com/
Address: 1339 Jeffco Blvd, Arnold, MO 63010
Phone: (636) 461-2900

Masonry & Glass Systems Inc

St. Louis, MO
3.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Dependable Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Glass Showers
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.masonryglass.com/
Address: 1503 S Kingshighway Blvd, St. Louis, MO 63110
Phone: (314) 535-6515

Window Nation

Overland, MO
3.6
★★★★★
  • Pros icon Dependable Service
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.windownation.com/stlouis-showroom/
Address: 1913 Belt Way Dr, Overland, MO 63114
Phone: (314) 279-8249

Sears Window Replacement

Bridgeton, MO
3.6
★★★★★
  • Pros icon Award-Winning
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.searshomeservices.com/locations/hi/window-replacement/mo/bridgeton
Address: 12930 Hollenberg Dr, Bridgeton, MO 63044
Phone: (314) 325-8649

STL Windows and Doors

St. Louis, MO
3.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Reliable Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://stlwindowsanddoors.com/
Address: 12150 Lackland Rd, St. Louis, MO 63146
Phone: (314) 277-5952

Building Envelope Experts

Fenton, MO
3.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Arrives on Time

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.buildingenv.com/
Address: 1576 Fencorp Dr Suite E, Fenton, MO 63026
Phone: (314) 310-7878

Missouri Glass Company

St. Louis, MO
3.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Residential Windows
  • Service icon Heavy Glass
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Commercial Windows

Website: http://www.missouriglass.com/
Address: 1717 Ohio Ave, St. Louis, MO 63104
Phone: (314) 664-5100

Clear Window Technology

Ballwin, MO
3.4
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes
  • Pros icon Award-Winning
  • Pros icon Good Customer Service

Services Offered

  • Service icon Architectural Glass
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: http://www.clearwindowtech.com/
Address: 15009 Manchester Rd #267, Ballwin, MO 63011
Phone: (314) 966-2666

Glass America

New Baden, IL
3.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Dependable Service
  • Pros icon Free Quotes
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Commercial Windows

Website: https://glassusa.com/
Address: 302 S Railway St, New Baden, IL 62265
Phone: (618) 588-2023

Lakeside Renovation & Design

Chesterfield, MO
3.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Dependable Service
  • Pros icon Arrives on Time
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Full-Service Installations

Website: https://lakesiderenovationanddesign.com/
Address: 139 Chesterfield Industrial Blvd, Chesterfield, MO 63005
Phone: (636) 978-5000

Gateway Glass

10+ years in business · Pacific, MO
3.4
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://gateway-glass.com/
Address: 10+ years in business · Pacific, MO
Phone: (636) 271-9898

Same Day Door Service

Festus, MO
3.4
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://samedaydoor.net/
Address: 116 E Main St, Festus, MO 63028
Phone: (314) 246-0449

Alenco Inc.

Fenton, MO
3.3
★★★★★
  • Pros icon Dependable Service
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Windows
  • Service icon Glass Showers
  • Service icon Sliding Glass

Website: https://www.alenconline.com/remodelers-st-louis/
Address: 5 Cassens Ct, Fenton, MO 63026
Phone: (314) 480-6264

Banner Construction

St. Louis, MO
3.3
★★★★★
  • Pros icon Timely Service
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Double-Hung

Website: https://bannerconstruction.com/
Address: 1177 N Price Rd, St. Louis, MO 63132
Phone: (314) 310-1133

Jacob Sunrooms, Exteriors & Baths

Fairview Heights, IL
3.3
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Custom Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.google.com/aclk
Address: Fairview Heights, IL
Phone: (618) 397-4391

How Installing Energy-Efficient Windows in St Louis 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% once you install Energy Star certified windows. In St Louis, that's about 763 pounds per year on average.
  • 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, drafty or maybe even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
  • Save on electricity bills: Because energy-efficient windows lower the amount of energy used to heat or cool your home, the switch can help you save about $331 annually on your energy bills in St Louis.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in St Louis

When looking into window installation, each company offers different services and costs. Let's take a look at some typical costs and services.

How Much Do New Windows Cost?

The average cost to install one window is about $600 but can range anywhere from $200 to $1,200. These amounts vary based on the specifics of your installation, such as material, the location of your home, size, number of windows, type and more.

Whether or not you choose energy-efficient windows is another factor that will influence the cost. These will almost always cost more than other windows, but on the other hand, you can save about $331 a year on your energy bills in St Louis.

We advise requesting free quotes from multiple window companies to find the one that works best for your budget.

What Services do Window Installers Offer?

The first thing to ask yourself when planning a window installation is: Should you get a full-frame installation or a pocket installation?

Full-frame installations involve replacing the entire window — the sill, frame, trim and all. These are most common when you want a new style for your windows or when it has significant rot or deterioration. Full-frame installations are more time-consuming and will increase overall costs. A pocket installation involves replacing a window within the existing frame, which is usually cheaper than a full-frame installation.

If you're still trying to decide which type of installation to get, you can consult with your provider and get their recommendation. The decision mostly depends on how old the frames are and if there's any damage.

Best Affordability

Window World

★★★★★
4.5

  • Great industry reputation
  • Large serice area
  • Lifetime warranty
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Award-winning company
  • Manufactures products in-house
  • More expensive than competition

Best Warranty

Universal Windows Direct

★★★★★
4

  • Makes charitable contributions
  • Lifetime warranty
  • Manufactures products in-house
  • Quality of service will depend on your area

How We Choose the Best Window Installers in St Louis

In our hunt to find the most reliable, eco-friendly window installers in St Louis, EcoWatch chose the above companies as the best window installation companies in the city. We've assessed the best window installers in St Louis mainly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows can cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

Since this is a guide for St Louis, we paid more attention to companies that provide services to the city. There are certainly other reputable providers that didn't make the list because they wouldn't be able to serve homeowners in St Louis.

Work Quality

When it comes to new windows, the quality and range of services often plays just as important of a role in insulation and performance as the type of window you choose. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

Customer feedback is another very important review factor. If the majority of customers don't have good feedback about their experience with a certain company, it won't be featured on EcoWatch.

Cost

Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

As discussed, windows are a significant investment, so you'll want to be certain that investment is well protected. Window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have been in the industry for quite some time. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

St Louis, MO Window Replacement FAQs

How much should window installation cost?

The national average cost of replacing one window is around $600 but can range from $200 to $1,200, depending on a variety of 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 a decent amount of money a year in energy bills.

Which type of window should I get?

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. To be sure you're getting the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — that means they're certified energy-efficient by the U.S. Department of Energy.

Can you install your own windows?

If you're handy and know how to replace a window, it's possible to install your own windows. However, if you don't have the time or know-how, we don't recommend doing it on your own.

How long does it generally take to install windows?

Because a window takes about 30 minutes to install, around 16 windows can be installed in a typical 8-hour work day.

Should I replace my windows all at the same time?

If you want to get more efficient windows and save money on energy costs, replacing all of the windows together is the only way to gain that benefit. However, if you have just a few windows that are broken or drafty, you can replace just those.

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