20 Best Window Companies in Lemay, MO (2025 Reviews)
Looking to improve your house’s appearance? The best window replacement companies can help.
We analyzed all the top-rated window companies in Lemay and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A guide on the best window installation companies in Lemay may not seem like the most riveting article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might think. During the summer months, the last thing you want is your cool air to leak out of your drafty windows.
Installing upgraded, efficient windows on your house can help you save money every month on your electric bills — and you can help the environment, too.
Efficient windows are of particular importance in Lemay, 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 $376 each year.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Lemay
The EcoWatch team examined dozens of companies that service the Lemay area to find the best window installation companies that fit our standards. The companies mentioned in this article scored the best in our review categories, such as energy-efficient offerings, customer service, local expertise, availability, price and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World offers windows expertise in Lemay. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been operating since 1995 and currently provides services to 200 locations nationwide. Its reputation is backed by several positive reviews from customers online.
You may want to consider picking Window World if you're interested in 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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s offerings are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Window World cost in Lemay?Window World does not outline prices on its website, but 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 information.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen offers the best availability in Lemay. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been operating since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. Its reputation is backed by several positive reviews from customers online.
You may want to consider picking Andersen if you're interested in 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 WindowsA 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. Not all of Andersen’s offerings are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Lemay?Andersen does not outline 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. Receiving a free quote on its website is the best way to get more accurate information.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation offers the best residential windows in Lemay. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has been operating since 2006 and currently provides services to residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by several positive reviews from customers online.
You may want to consider picking Window Nation if you're interested in 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 WindowsEach product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation. Not all of Window Nation’s offerings are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Window Nation cost in Lemay?Window Nation does not outline 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. Receiving a free quote on its website is the best way to get more accurate information.
We’ve recommended installers with good reputations, but bear in mind that these are national companies, so the quality of service may differ depending on your local crew. We have tried to remain unbiased and transparent by including pros and cons for every company we reviewed.
More Window Companies in Lemay
Renewal by Andersen
Maryland Heights, MOPrice Transparency
Educational Website
Timely Service
Good Customer Service
Free assessment
Services Offered
Skylights
Double-Hung
Window Replacement/Installation
Bay Windows
Glass Doors
Champion Replacement Windows of St. Louis
Fenton, MOPrice Transparency
Good Customer Service
Free assessment
Services Offered
Bay Windows
Glass Doors
Double-Hung
Window Replacement/Installation
Window Nation
Overland, MOGood Customer Service
Price Transparency
Free assessment
Educational Website
Services Offered
Vinyl Frames
Custom Window Designs
Energy-Efficient Options
Glass Doors
Bay Windows
Double-Hung
Window Replacement/Installation
Colonial Construction
St. Louis, MOEducational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Building Envelope Experts
Fenton, MOFree assessment
Timely Service
Good Customer Service
Educational Website
Price Transparency
Services Offered
Custom Window Designs
Bay Windows
Vinyl Frames
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Chaney Windows And Doors
Maryland Heights, MOGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Bay Windows
Vinyl Frames
Window Replacement/Installation
Wood Frames
Glass Doors
Energy-Efficient Options
Gateway Door and Contracting
St Charles, MOPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Windows Doors & More LLC
St Charles, MOFree assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Home Comfort Exteriors
St Peters, MOFree assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Cardinal Contractors
St. Louis, MOGood Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Quality Installation
Swansea, ILFree assessment
Good Customer Service
Services Offered
Glass Doors
Window Replacement/Installation
Butler Home Improvement
Collinsville, ILEducational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
STL Windows and Doors
Earth City, MOFree assessment
Timely Service
Educational Website
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Double-Hung
Glass Doors
Bay Windows
Gateway General Contractors
O'Fallon, MOPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Mills Window & Door Showroom
Fenton, MOFree assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Jacob Sunrooms, Exteriors & Baths
Fenton, MOGood Customer Service
Price Transparency
Free assessment
Educational Website
Services Offered
Vinyl Frames
Window Replacement/Installation
Glass Showers
Energy-Efficient Options
Fiberglass Frames
Glass Doctor of St. Charles, MO
St Charles, MOPrice Transparency
Good Customer Service
Educational Website
Services Offered
Tempered Glass
Custom Glass
Mirrors
Window Replacement/Installation
Glass Repair
Energy-Efficient Options
Glass Showers
Window Repair
Glass Doors
Jones Home Improvements
Cottleville, MOFree assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
L&D Wilson's Siding & Roofing Inc
Lebanon, ILFree assessment
Price Transparency
Timely Service
Good Customer Service
Services Offered
Window Repair
Window Replacement/Installation
Double-Hung
Energy-Efficient Options
Lyons Glass Company
Alton, ILPrice Transparency
Free assessment
Good Customer Service
Services Offered
Glass Doors
Tempered Glass
Glass Showers
Glass Repair
Window Replacement/Installation
Mirrors
Calculate how much you can expect to pay for window installation and replacement in Lemay, MO using our customized window cost calculator.
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 Lemay Saves You Money
Switching to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here's more information on how switching out your windows could help you:
- Decrease your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 763 pounds per year on average.
- Save money on electricity bills: The Department of Energy estimates that heat gained or lost via windows makes up around 25-30% of energy use in your home. Installing energy-efficient windows can help decrease that amount, which helps you save more on your bills.
- Protect your investment: If you have an older home, your windows are most likely in need of replacement. Updating your windows can make your home more comfortable and also help increase the value of your home if you decide to sell.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Lemay
Each window installation company offers varying services and has varying price points depending on several factors.
How Much Do New Windows Cost?
Even though the national average cost to install one window is about $600, it can range from $200 to $1,200. This is because window installations depend on a variety of factors specific to your home, like the size, material and number of windows you need to replace, as well as the location of your property.
It’s also worth noting that energy-efficient windows will almost always cost more upfront, but Energy Star predicts that switching out the windows on your Lemay home translates to an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. How much you’ll save by upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
We recommend getting free quotes from multiple window companies to find the one that works best for you.
What Services do Window Installers Offer?
There are typically two kinds of window replacement services: full-frame and pocket installations.
A full-frame installation is a replacement of the full window. It involves taking out the old window, the sill, and the exterior and interior trim. It can also involve extra materials, like insulation and drip edges, which increase the total cost of the project. It’s also worth noting that it’s not uncommon for homeowners to have to touch up the paint around the window after a full-frame installation. Pocket installations are on the simpler end and won’t cost as much, as they entail merely replacing the window within its existing frame. But if the frame has any damage or rot, you should opt for a full-frame installation instead.
If you’re unsure which window installation service you need, your installer can help you out. Generally, the decision is based on factors such as the age and condition of the home, the type of building material, budget and time restrictions.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Lemay
EcoWatch reviews are different from most reviews since we’re examining these companies through a sustainability lens. We’ve decided to review the top window installers in Lemay primarily based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified 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
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve Lemay so you can find the best window installation company near you.
Work Quality
We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each company featured on this list 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 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 other services, cheap window installers are not going to provide the highest quality service. Still, we want to ensure we’re highlighting companies that provide a variety of price and financing options so they’re accessible to most homeowners.
Warranty
As discussed previously, windows are a substantial investment, so you’ll want to make sure 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 are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Lemay, MO Window Replacement FAQs
How much should window installation cost?
The national average cost of installing one window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is generally dependent on the location of your property, the type and material of the window and the size of the window. Also, keep in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What kind of window is the most energy-efficient?
A window’s energy efficiency is influenced by a variety of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.
What do window installation companies do?
Window installation professionals go to your home to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is done.
When is the best time of year to replace windows?
Replacement windows can be installed during any season, but autumn might be best. Regardless of when you install them, the contractors will take steps to make sure that too much hot or cold air doesn’t get into the house, so the temperature outside isn’t necessarily a big factor. Most importantly, the weather should be dry.