20 Best Window Companies in St. Clair, IL (2024 Reviews)

If you’re thinking about upgrading to new windows, our list of the top window installation companies can help.

We analyzed all the top-rated window companies in St. Clair and selected the best 20 based on:

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

By EcoWatch Local Advisors

Updated June 24, 2024

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.

A review of the top window installation companies in St. Clair may not seem like the most compelling article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. When it’s the middle of summer, your old and leaky windows could be making your home more difficult to cool and more uncomfortable for you.

Replacement windows improve the insulation in your home, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.

As windows are so important for your home, selecting the right company for you is a big choice 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 Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best Window Installation & Replacement Companies in St. Clair

The EcoWatch team assessed dozens of installers in St. Clair to find the top window installation companies for our readers. The providers mentioned in this article passed our review standards for energy-efficient offerings as well as price, customer service, local expertise and beyond.

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

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in St. Clair. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the window installation business. The company has many positive reviews from customers on online review websites.

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 Windows

Window 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 St. Clair?

Window World doesn’t have any prices listed on its website, but it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about pricing.

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 Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen has the best availability in St. Clair. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window installation business. The company has many positive reviews from customers on online 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 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 Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in St. Clair?

Andersen doesn’t have any prices listed 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. You can inquire about a free quote on its website for more information about pricing.

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 has the best residential windows in St. Clair. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has about 16 years of experience in the window installation business. The company has many 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 Windows

Window Nation 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 Nation representative when inquiring about services.

How much does Window Nation cost in St. Clair?

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 inquire about a free quote on its website for more information about pricing.

We’ve recommended companies with good reputations, but bear in mind that some national companies have independently owned locations in St. Clair, so your service may differ depending on your local crew. We have tried to remain unbiased and transparent by including pros and cons for each company we reviewed.

More Window Companies in St. Clair

Renewal by Andersen

Maryland Heights, MO
4.6
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Double-Hung
  • Service icon Skylights
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.renewalbyandersen.com/window-company/733-st-louis-mo/about-us
Address: 2446 Schuetz Rd, Maryland Heights, MO 63043
Phone: (314) 983-9977

Champion Replacement Windows of St. Louis

Fenton, MO
4.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows

Website: https://www.championwindow.com/St-Louis/
Address: 29 Cassens Ct, Fenton, MO 63026
Phone: (636) 764-0470

Window Nation

Overland, MO
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Custom Window Designs

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

Quality Installation

Swansea, IL
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.qualityinstallation.net/
Address: 1108 N Belt W, Swansea, IL 62226
Phone: (888) 677-6838

Butler Home Improvement

Collinsville, IL
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.butlerhomeimprovement.com/
Address: 906 Vandalia St, Collinsville, IL 62234
Phone: (618) 344-7073

Jacob Sunrooms, Exteriors & Baths

Fairview Heights, IL
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Fiberglass Frames
  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames

Website: https://www.jacobsunroom.com/
Address: 9723 IL-161, Fairview Heights, IL 62208
Phone: (618) 397-4391

L&D Wilson's Siding & Roofing Inc

Lebanon, IL
3.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Repair
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://www.wilsonsidinginc.com/
Address: 502 S Fritz St, Lebanon, IL 62254
Phone: (618) 632-2389

Gravois Glass

St. Louis, MO
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Mirrors
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Glass Repair
  • Service icon Double-Hung

Website: https://www.gravoisglass.net/
Address: 6825 Gravois Ave, St. Louis, MO 63116
Phone: (314) 352-2200

Colonial Construction

St. Louis, MO
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.colonialstl.com/
Address: 10120 Fite Cir, St. Louis, MO 63123
Phone: (314) 725-6080

Empire Supply Co

St. Louis, MO
4.6
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames
  • Service icon Metal Frames
  • Service icon Double-Hung
  • Service icon Mirrors
  • Service icon Storm/Impact Windows
  • Service icon Tempered Glass

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

Windoor - Unlimited

Troy, IL
3.4
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Glass Doors

Website: http://www.windoor-unlimited.com/
Address: 200 Collinsville Rd, Troy, IL 62294
Phone: (618) 505-7502

Viviano Windows & Door

Shrewsbury, MO
4.3
★★★★★
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation

Website: https://viviano-inc.com/
Address: 7530 Watson Rd, Shrewsbury, MO 63119
Phone: (314) 353-8350

John Boushard Home Remodeling

Granite City, IL
2.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: https://johnboushardremodeling.com/
Address: 2 Kelly Dr, Granite City, IL 62040
Phone: (618) 779-4873

Glass Doctor of Greater St. Louis

St. Louis, MO
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Tempered Glass
  • Service icon Custom Glass
  • Service icon Window Replacement/Installation
  • Service icon Glass Repair
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Glass Doors
  • Service icon Window Repair

Website: https://glassdoctor.com/st-louis
Address: 9400 Manchester Rd, St. Louis, MO 63119
Phone: (314) 962-4344

Cardinal Contractors

St. Louis, MO
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation

Website: https://cardinalcontractors.com/
Address: 453 N Lindbergh Blvd, St. Louis, MO 63141
Phone: (314) 266-4633

Building Envelope Experts

Fenton, MO
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Custom Window Designs
  • Service icon Double-Hung

Website: https://www.buildingenv.com/
Address: 1576 Fencorp Dr Suite 160, Fenton, MO 63026
Phone: (314) 310-7878

Mills Window & Door Showroom

Fenton, MO
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: http://www.millswindow.com/
Address: 1860 Fenpark Dr, Fenton, MO 63026
Phone: (314) 429-7000

Home Services at The Home Depot

Brentwood, MO
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.homedepot.com/l/Hanley-Rd-40/MO/Brentwood/63144/3002/services
Address: 1603 S Hanley Rd, Brentwood, MO 63144
Phone: (314) 279-3869

Penny Window

St. Louis, MO
3.8
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Repair
  • Service icon Glass Doors
  • Service icon Storm/Impact Windows
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: https://pennywindowstl.com/
Address: 9910 Halls Ferry Road, St. Louis, MO 63136
Phone: (314) 867-4355

Chaney Windows And Doors

Maryland Heights, MO
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Wood Frames
  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation

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

Calculate how much you can expect to pay for window installation and replacement in St. Clair, IL using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.

How Installing Energy-Efficient Windows in St. Clair Saves You Money

Switching to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here are more details about how switching out your windows could benefit you:

  • Save money on energy bills: The Department of Energy estimates that heat gained or lost via windows makes up around 25-30% of household energy use. Switching to energy-efficient windows can help reduce that number, which helps you save some money on your bills.
  • Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your carbon emissions. You could reduce it by 642 pounds per year on average.
  • 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, drafty or potentially even damaged in some way. Upgrading your windows could help raise the value of your property if you decide to sell.
  • 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.

Estimated Cost of Window Replacement in St. Clair

Windows come in varying shapes and sizes, so costs and services will differ greatly. Here are the average costs and the primary services that you can find from window installers.

How Much Do New Windows Cost?

Typically, homeowners in St. Clair can expect that most replacement window installations will cost between $250 and $1,200, with the average cost at about $600. But costs differ considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door installations and replacements, which have a higher price tag.

It’s also worth keeping in mind that energy-efficient windows will almost always cost more upfront, but Energy Star predicts that upgrading the windows on your St. Clair home translates to an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you’ll save by switching to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

Another factor that influences the total cost is the material you select for your frame. Aluminum frames are usually the least expensive and are sturdy and light, but they offer poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

The first step when planning a window replacement is to clarify whether you want a full-frame or pocket installation.

Full-frame installations are usually recommended when you want a new style or your window has significant rot or deterioration. With this service, your installers 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 more simple and affordable. However, if the frame has any rot or deterioration, you will likely need a full-frame installation instead.

Your window installer should be able to help you choose which type of installation you need.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

How We Choose the Best Window Installers in St. Clair

In our search to find the most reliable, eco-friendly window installers in St. Clair, EcoWatch landed on the above companies as the top window installation companies in the city. We’ve evaluated the best window installation companies in St. Clair mostly 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 considers the following factors:

Service Area

This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve St. Clair so you can find the best window installation company near you.

Work Quality

We’re willing to bet that you’re looking for professionals who do a great job installing windows. We’ve vetted each installer featured on this list to ensure its contractors are well-qualified and that the company has gotten lots of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent customer feedback to determine the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across most other categories, including warranty, quality of installation, quality of parts, professionalism, cost and more.

Cost

Cheaper windows certainly don’t mean better windows, but we know many of our readers want to keep costs low when 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 to many homeowners. For that reason, window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Because of St. Clair’s climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of St. Clair window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

St. Clair, IL Window Replacement FAQs

What is the typical cost to install new windows in a home?

The national average cost of replacing a single window is about $600 but can range between $200 and $1,200, depending on a variety of factors. The price is generally dependent on the size of the window, the type and material of the window and the location of your property. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.

What kind of window is the best for energy efficiency?

A window’s energy efficiency is influenced by several factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.

What services do window installation companies do?

Window installation companies cover the entire process — from replacing old windows with new ones to cleaning up after the windows have been put in place. In addition, many companies offer window manufacturing, customization and repairs.

When is the best time of year to replace windows?

Although you can install windows any time of year, warmer weather is often better for installing replacement windows. Additionally, the weather should be dry, since rain can make the installation harder.