20 Best Window Companies in University City, MO (2025 Reviews)
When the time comes to replace your windows, our list of the best window installation companies can help you find the right provider for you.
We analyzed all the top-rated window companies in University City 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 top window installation companies in University City may not seem like the most interesting article on the EcoWatch site, but trust us, windows impact your life more than you might think. Damaged or outdated windows can cost you in electric bills. In fact, the Department of Energy estimates that about 30% of your home’s heat or cool air could be lost through your windows.
Thankfully, helping you save money with efficient windows also aligns with our goals of conserving energy and the resources it takes to produce it.
So if you’re constructing a new home, renovating or replacing your windows in University City, this guide is the best place to get started.
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 University City
The EcoWatch Reviews team evaluated many installers in University City to find the top ones for our readers. The companies mentioned in this article scored best in our categories: energy-efficient offerings, customer service, price, availability 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 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 windows industry, and it currently serves 200 locations nationwide. Many positive reviews on customer review websites back the provider's reputation.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, this may be the right company for you.
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 be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Window World cost in University City?Window World doesn’t have any pricing information available on its website, but it's known for offering some of the most affordable window installations around. You can request a free quote on its website for more information about the cost.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the windows industry, and it currently serves nearly every state except Mississippi and West Virginia. Many positive reviews on customer review websites back the provider's reputation.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the right company for you.
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 be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in University City?Andersen doesn’t have any pricing 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. You can request a free quote on its website for more information about the cost.

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 is 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 windows industry, and it currently serves residents within 75 miles of its showrooms, which are in 13 states. Many positive reviews on customer review websites back the provider's reputation.
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 right company for you.
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 be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Window Nation cost in University City?Window Nation doesn’t have any pricing information available 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 request a free quote on its website for more information about the cost.
We aim to remain unbiased and transparent by describing pros and cons for every provider. Additionally, any partnerships do not influence our rankings.
More Window Companies in University City
Renewal by Andersen
Maryland Heights, MOFree assessment
Timely Service
Educational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Skylights
Bay Windows
Double-Hung
Glass Doors
Champion Replacement Windows of St. Louis
Fenton, MOPrice Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Double-Hung
Bay Windows
Glass Doors
Window Nation
Overland, MOPrice Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Custom Window Designs
Glass Doors
Bay Windows
Vinyl Frames
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Chaney Windows And Doors
Maryland Heights, MOGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Vinyl Frames
Glass Doors
Bay Windows
Energy-Efficient Options
Wood Frames
Colonial Construction
St. Louis, MOGood Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Building Envelope Experts
Fenton, MOPrice Transparency
Good Customer Service
Educational Website
Free assessment
Timely Service
Services Offered
Double-Hung
Vinyl Frames
Window Replacement/Installation
Bay Windows
Energy-Efficient Options
Custom Window Designs
Glass Doors
Gateway Door and Contracting
St Charles, MOGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Windows Doors & More LLC
St Charles, MOGood Customer Service
Free assessment
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, MOPrice Transparency
Good Customer Service
Free assessment
Services Offered
Window Replacement/Installation
STL Windows and Doors
Earth City, MOEducational Website
Good Customer Service
Timely Service
Price Transparency
Free assessment
Services Offered
Bay Windows
Window Replacement/Installation
Glass Doors
Double-Hung
Butler Home Improvement
Collinsville, ILEducational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Quality Installation
Swansea, ILFree assessment
Good Customer Service
Services Offered
Glass Doors
Window Replacement/Installation
Gateway General Contractors
O'Fallon, MOPrice Transparency
Educational Website
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Mills Window & Door Showroom
Fenton, MOFree assessment
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Jacob Sunrooms, Exteriors & Baths
Fenton, MOPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Energy-Efficient Options
Fiberglass Frames
Vinyl Frames
Window Replacement/Installation
Glass Showers
Glass Doctor of St. Charles, MO
St Charles, MOEducational Website
Good Customer Service
Price Transparency
Services Offered
Window Repair
Energy-Efficient Options
Custom Glass
Glass Showers
Window Replacement/Installation
Tempered Glass
Glass Doors
Mirrors
Glass Repair
Lyons Glass Company
Alton, ILFree assessment
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Mirrors
Glass Repair
Window Replacement/Installation
Tempered Glass
Glass Showers
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
Good Customer Service
Price Transparency
Timely Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Window Repair
Double-Hung
Calculate how much you can expect to pay for window installation and replacement in University City, 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 University City Saves You Money
Energy-efficient windows can provide benefits in several ways. Here are a few reasons you may want to consider making the switch:
- 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, leaky or potentially even damaged in some way. Updating your windows could help raise the value of your property if you decide to sell.
- Save on energy bills: Once you switch to energy-efficient windows, you can expect a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your home, you can lower your carbon footprint by about 12%, according to Energy Star.
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
Estimated Cost of Window Replacement in University City
Each window installation company provides varying services and has varying prices based on several factors.
How Much Do New Windows Cost?
The typical cost to replace one window is about $600 but can range anywhere from $200 to $1,200. How much it will cost depends on several factors, such as size, the location of your home, material, number of windows, type and more.
With windows, efficiency is the most important factor for most homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — especially during the summer and winter — they can give you decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save University City homeowners $376+ per year after replacing single-pane windows.
Costs will also vary based on the material of your frame. Aluminum frames have the lowest price. 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 with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They’re also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
The first step of an installation is to figure out whether you need a full-frame or pocket installation.
A full-frame installation replaces the entire window, such as the windowsill, frame, trim and the window panes. Because this type of installation requires more time and labor, it will cost more than a pocket installation. Pocket installations (also known as retrofits) are when you replace a window while leaving the existing frame. Pocket installations are simpler and will be less expensive, but you can’t do this kind of installment if you have any pre-existing rot or water damage.
If you’re not sure which kind of window installation service you need, your installer can assist you. Typically, the choice is influenced by 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 University City
In our search to find the most reliable, eco-friendly window installers in University City, the EcoWatch Reviews team examined many companies before deciding on these. Along with energy efficiency, we evaluated window companies all across the state and assigned rankings based on the following methodology:
Service Area
Because this is a guide for University City, we paid more attention to companies that serve the city. There are certainly other reputable providers that didn’t make our list because they wouldn’t be able to serve homeowners in University City.
Work Quality
We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer included in our guide to make sure its technicians are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If the majority of customers don’t have nice feedback about their service from a certain installer, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies are not going to provide the highest quality service. Still, we want to make sure we’re highlighting companies that offer a spectrum of price and financing options so they’re accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that have 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 a while. Window installers that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.
University City, MO Window Replacement FAQs
How much does a window install cost?
The average cost of installing one window can range from $450 to $650. There are many factors that influence how much it costs, including your property’s location, local labor costs, the materials used in designing the windows, styles and sizes of windows, how energy-efficient the windows are and the number of windows.
What are the most common types of replacement windows?
There are several different types of windows you can get for your home, including double-hung and single-hung windows, slider windows, transom windows, casement windows, awning windows, bay windows and picture windows.
Can you install your own windows?
If you’re handy and have the time and patience to do the job right, it’s possible to install your own windows. However, if you don’t have the time or experience, we don’t recommend trying it.
What time of year is a good time to replace my windows?
Though you can install windows any time of year, warmer weather is often better for replacing windows. In addition, it shouldn’t be raining, because rain can make the installation more difficult.