28 Best Window Replacement Companies in St Clair, MO (Mar 2023)
Window Companies Near Me

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

We analyzed all the top window installers in St Clair and selected the top 28 based on:

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

By EcoWatch Local Advisors

Updated March 14, 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.

The EcoWatch team is all about helping St Clair homeowners find eco-conscious solutions for their homes. When it's the middle of summer, your outdated and leaky windows could be making your home more difficult to cool and costing you more in power bills.

That's not great for either your bank account or the environment, but one of the top window installation companies can help with that.

As windows have such a big impact on your home, choosing the right company for you is a big choice to make. That's why the EcoWatch team has curated this list of the best window installation companies, so you can make an informed decision more easily.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Manufactures products in-house
  • Member of US Green Building Council
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Great industry reputation
  • Lifetime warranty
  • Quality of service will depend on your area

Best Warranty

Universal Windows Direct

★★★★★
4

  • Wide variety of products and services
  • Manufactures products in-house
  • Lifetime warranty
  • Quality of service will depend on your area

Best Window Replacement Companies in St Clair

The EcoWatch team examined several installers in St Clair to find the best ones for our readers. The providers mentioned in this article scored best in our review categories, which include energy-efficient offerings, availability, price, local expertise, customer service and more.

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 Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Member of US Green Building Council
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 installation industry. Its reputation is backed by many 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 Windows

Renewal by Andersen has 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 St Clair?

Andersen doesn't have any cost information available 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. For more detailed information on pricing, you can request a quote from the company.

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 Great industry reputation
  • 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 about 27 years of experience in the industry, and it currently provides services to 200 locations nationwide.

Window World may be the company for you if you're looking for 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 Windows

There are a wide range of window types available from Window World, 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 Clair?

While pricing is not available on Window World's website, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

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 Wide variety of products and services
  • Pros icon Manufactures products in-house
  • Pros icon Lifetime warranty
Cons:
  • Pros icon 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 been in the window installation business for about 20 years. Its reputation is backed by hundreds of positive reviews on customer review websites.

If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the perfect provider for you.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you 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 St Clair?

Universal does not outline 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. Getting a free quote on its website is the best way to know for sure.

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 provides 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. This window installation company has been operating since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by several positive reviews from customers online.

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 with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so make sure to ask your Window Nation representative when inquiring about services.

How much does Window Nation cost in St Clair?

Window Nation does not list 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 detailed information on the cost, you can ask for a quote from the company.

We strive to be unbiased and transparent by listing pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.

More Window Replacement Companies in St Clair

The Glass Guru

Wentzville, MO
5
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Locally Recognized for Quality

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.theglassguru.com/ofallon-mo/
Address: 2182 E Pitman Ave, Wentzville, MO 63385
Phone: (636) 251-4018

Storm Guard Roofing and Construction St Louis West County

Pacific, MO
5
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Dependable Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business 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 Helps Educate Customers
  • Pros icon Arrives on Time
  • Pros icon Award-Winning
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business 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

Freedom Restoration & Roofing

Warrenton, MO
3.8
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable 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://www.freedomroofingmo.com/
Address: 801 Louis St Suite A, Warrenton, MO 63383
Phone: (636) 275-9494

Spectrum Glass & Tinting

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

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 No-Hassle Pricing
  • Pros icon Dependable Service
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service

Services Offered

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

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

Building Envelope Experts

Fenton, MO
3.6
★★★★★
  • Pros icon Timely Service
  • Pros icon Reliable Service
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Window Designs
  • 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

Clear Window Technology

Ballwin, MO
3.4
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes

Services Offered

  • Service icon Architectural Glass
  • Service icon Custom Window Designs
  • 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

Lakeside Renovation & Design

Chesterfield, MO
3.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely 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 Free Quotes
  • Pros icon Consistent Workmanship
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing

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 Arrives on Time
  • Pros icon Consistent Workmanship
  • Pros icon Free Quotes
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Commercial 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 No-fee Quotes
  • Pros icon Dependable Service
  • Pros icon Good Customer Service
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Custom Window Designs
  • 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

Pierce Window & Door

St Clair, MO
3.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Free Quotes
  • Pros icon Reliable Appointment Windows

Services Offered

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

Website: http://piercewindow.com/
Address: 1236 N Commercial Ave, St Clair, MO 63077
Phone: (636) 629-3320

A Pane In The Glass

St Charles, MO
3.2
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Reliable Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows

Website: https://apaneintheglassllc.com/
Address: 1224 Harvestowne Ind Dr, St Charles, MO 63304
Phone: (636) 561-0474

Casey Exteriors

Arnold, MO
3.2
★★★★★
  • Pros icon Educational Website
  • Pros icon Locally Recognized for Quality
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: http://www.caseyexteriorsllc.com/
Address: 726 Jeffco Blvd, Arnold, MO 63010
Phone: (314) 892-5900

Lindsay Windows Missouri

Union, MO
3.2
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://lindsaywindows.com/
Address: 11 Cedar Ct, Union, MO 63084
Phone: (636) 583-0850

JK Exteriors LLC

High Ridge, MO
3.1
★★★★★
  • 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 Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.jkexteriors.com/
Address: 4889 Country Club Dr, High Ridge, MO 63049
Phone: (314) 968-6628

Maris Home Improvements

Chesterfield, MO
3.1
★★★★★
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Window Designs
  • Service icon Double-Hung

Website: https://www.google.com/aclk
Address: Chesterfield, MO
Phone: (636) 778-4343

Champion Replacement Windows of St. Louis

Fenton, MO
3.0
★★★★★
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Locally Recognized for Quality
  • Pros icon Excellent Customer Service

Services Offered

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

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

Presleys Glass

Pacific, MO
3.0
★★★★★
  • Pros icon Dependable Service
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Aluminum Window Frames
  • Service icon Architectural Glass

Website: http://www.presleysglassinc.com/
Address: 1206 Thornton St, Pacific, MO 63069
Phone: (636) 257-4885

JH Exteriors LLC

Imperial, MO
2.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Arrives on Time
  • Pros icon Reliable Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs

Website: https://jhexteriors.com/
Address: 6643 US Hwy 61-67, Imperial, MO 63052
Phone: (636) 942-1346

Pella Windows & Doors of Greater St. Louis

Chesterfield, MO
2.9
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing

Services Offered

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

Website: https://www.pellabranch.com/st-louis/showrooms/st-louis/
Address: 17702 Chesterfield Airport Rd, Chesterfield, MO 63005
Phone: (314) 714-0100

Metropolitan Glass Company

Manchester, MO
2.9
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service

Services Offered

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

Website: http://stlouis-glass.com/
Address: 14385 Manchester Rd, Manchester, MO 63011
Phone: (636) 391-8000

Martin Glass Company

St. Louis, MO
2.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Full-Service Installations
  • Service icon Sliding Glass

Website: http://www.martinglass.net/
Address: 13110 Tesson Ferry Rd, St. Louis, MO 63128
Phone: (314) 892-0320

Coldstream Exteriors

St. Louis, MO
2.8
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes
  • Pros icon Award-Winning
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows

Website: https://coldstreamexteriors.com/
Address: 3636 S Geyer Rd Suite 100, St. Louis, MO 63127
Phone: (314) 380-8111

EZ Home Solutions

O'Fallon, MO
2.8
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows

Website: https://www.ezhomesolutions.com/
Address: 54 Hemlock Dr, O'Fallon, MO 63366
Phone: (952) 679-7053

Franklin County Glass

Washington, MO
2.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: http://franklincountyglass.com/
Address: 2010 Hwy A, Washington, MO 63090
Phone: (636) 239-7357

Eclipse Window Tinting Inc.

Crystal City, MO
2.7
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website
  • Pros icon Consistent Workmanship
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Business Windows

Website: http://www.eclipsewindowtintinginc.com/
Address: 1023 N Truman Blvd B, Crystal City, MO 63019
Phone: (636) 933-7775

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

By switching to energy-efficient windows, you can take advantage of several benefits, including:

  • Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less because of their ability to filter out harmful UV rays.
  • Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can make your home more comfortable and also help raise the value of your house if you decide to sell.
  • Save on power bills: Once you install energy-efficient windows, you can expect a reduction in your bills by about 12% since you'll require less energy to heat or cool your house.
  • Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can reduce your indirect greenhouse gas emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in St Clair

Windows come in varying shapes, purposes and styles, so costs and services will vary considerably depending on several factors. Below, we detail the typical cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

According to our market research, the national average cost to install a single window is about $600. However, window replacement costs can range from $200 to $1,200 per window. How much it will cost you depends on several factors, like type, the location of your home, number of windows, size, material and more.

It's important to note that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in certified energy-efficient windows can save St Clair homeowners $374+ a year when replacing single-pane windows.

Costs will also vary depending on the material of your frame. Aluminum frames are the least expensive. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

When it comes to window replacements, in general there are two kinds that your provider will have: full-frame and pocket installations.

Full-frame installations are usually recommended when you want to change the style of your windows or your window has a lot of rot or deterioration. With this service, your professionals will replace the whole window, including the sill, trim and frame. A pocket installation involves replacing a window without replacing the frame. So, instead of taking out the whole unit and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.

If you're still trying to decide which kind of installation you need, you can ask your installer and get their recommendation. The choice mostly is influenced by how old the frames are and if there's any damage present.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Manufactures products in-house
  • Member of US Green Building Council
  • More expensive than competition

Best Affordability

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Great industry reputation
  • Lifetime warranty
  • Quality of service will depend on your area

Best Warranty

Universal Windows Direct

★★★★★
4

  • Wide variety of products and services
  • Manufactures products in-house
  • Lifetime warranty
  • Quality of service will depend on your area

How We Choose the Best Window Installers in St Clair

EcoWatch reviews are different from most reviews because we examine these companies through a sustainability lens. We have evaluated the top window installers in St Clair mainly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows can reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

Because this is a guide for St Clair, we only included companies that serve the city. There are other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in St Clair.

Work Quality

We're certain that you're looking for a company to do a great job installing windows. We've vetted each company 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

Another self-explanatory yet very important review factor is customer feedback. If the majority of customers don't have nice things to say about their experience with a certain window installation company, it won't be featured on EcoWatch.

Cost

Cheaper windows certainly don't mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing providers' prices, we gave 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 have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

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

St Clair, MO Window Replacement FAQs

How much should a window install cost?

The national average cost to install one window is about $600 but can range between $200 and $1,200, based on several factors. The price is usually dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.

What type of window is the best for energy efficiency?

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. If you want to be sure you'll get the most energy-efficient windows, look for models with the blue Energy Star certification — this means they're certified energy-efficient by the U.S. Department of Energy.

Can you install your own windows?

Although it is possible to install your own windows, doing so is time-consuming and requires a lot of handiness. Hiring a professional can help guarantee that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.

When is the best time of year to replace windows?

Although you can install windows any time of year, warmer weather is generally better for installing replacement windows. In addition, the weather should be dry, as rain can make the installation more difficult.

Should I replace all my windows at once?

If you want to get more efficient windows and save money on your energy bills, replacing all the windows at the same time is the only way to gain that benefit. On the other hand, if you have just a few windows that are broken or drafty, you can replace just those.

Follow us