20 Best Window Companies in Downers Grove, IL (2025 Reviews)
When it’s time to replace your windows, our list of the best window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in Downers Grove 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 replacement companies in Downers Grove may not seem like the most captivating article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. If your windows are made of traditional materials, or are outdated or damaged, you could be sending 25-30% of your home’s heat or cool air out of them.
Fortunately, helping you save money with upgraded windows also aligns with our goals of conserving energy and the resources it takes to produce it.
Unlike other sites, EcoWatch ranks window replacement companies on energy efficiency while also taking into consideration cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in Downers Grove
The EcoWatch team examined several window installation companies in Downers Grove to find the top ones for our readers. The companies mentioned in this article scored best in our review categories, which include energy-efficient offerings, availability, customer service, price, local expertise 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 Downers Grove. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This provider has 27 years of experience in the windows industry, and it has proved to be one of the most reputable companies in Downers Grove. Hundreds of positive reviews from customers online back the company'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, Window World may be the perfect provider for you.
Energy Efficiency of Window World WindowsWindow World is an Energy Star partner and has 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 be sure to ask your Window World representative when inquiring about services.
How much does Window World cost in Downers Grove?Window World doesn’t have any cost information available on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on the cost, you can inquire about a quote from the company.

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 Downers Grove. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the windows industry, and it has proved to be one of the most reputable companies in Downers Grove. Hundreds of positive reviews from customers online back the company'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, Andersen may be the perfect provider for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner and has 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 be sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Downers Grove?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 the cost, you can inquire about a quote from the company.

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 Downers Grove. It's 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 industry, and it has proved to be one of the most reputable companies in Downers Grove. Hundreds of positive reviews from customers online back the company'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, Window Nation may be the perfect provider for you.
Energy Efficiency of Window Nation WindowsWindow Nation is an Energy Star partner and has 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 be sure to ask your Window Nation representative when inquiring about services.
How much does Window Nation cost in Downers Grove?Window Nation doesn’t have any cost 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. For more detailed information on the cost, you can inquire about a quote from the company.
Please note that the companies in this section are national, which means the quality of customer service may vary depending on your local crew. We have tried to be unbiased and transparent by listing pros and cons for every provider.
More Window Companies in Downers Grove
Renewal by Andersen of Chicago
Lockport, ILPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Skylights
Custom Window Designs
Window Replacement/Installation
Double-Hung
Bay Windows
Glass Doors
Power Home Remodeling
Chicago, ILGood Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Window Nation
Romeoville, ILEducational Website
Services Offered
Energy-Efficient Options
Double-Hung
Custom Window Designs
Window Replacement/Installation
Glass Doors
Bay Windows
Vinyl Frames
WINBUZZ Windows Replacement
Downers Grove, ILFree assessment
Good Customer Service
Services Offered
Vinyl Frames
Double-Hung
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Bay Windows
Royal Craft Home Remodelers Inc.
Downers Grove, ILFree assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Rite Way Glass & Mirror
Woodridge, ILEducational Website
Good Customer Service
Price Transparency
Free assessment
Timely Service
Services Offered
Window Replacement/Installation
Mirrors
Window Repair
Tempered Glass
Glass Doors
Energy-Efficient Options
Screen Repair
Glass Showers
New Edg Window Replacement
Naperville, ILServices Offered
Window Replacement/Installation
Window Repair
Pegasus windows Inc.
Westchester, ILFree assessment
Good Customer Service
Price Transparency
Services Offered
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Bay Windows
Two Panes Glazing, LLC
Wheaton, ILGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Window Repair
BUZ Windows Replacement & Installation
Carol Stream, ILFree assessment
Services Offered
Bay Windows
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Durabuilt Home Improvements, Inc.
Elmhurst, ILPrice Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Double-Hung
Vinyl Frames
Bay Windows
Wood Frames
Glass Doors
AT Construction, Inc.
Orland Park, ILFree assessment
Good Customer Service
Educational Website
Timely Service
Price Transparency
Services Offered
Window Replacement/Installation
Real Exteriors
Schiller Park, ILTimely Service
Educational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
Schmidt Exteriors, Inc.
Aurora, ILPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Custom Window Designs
Vinyl Frames
Bay Windows
Glass Doors
Energy-Efficient Options
Northwind Exteriors
Park Ridge, ILGood Customer Service
Price Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Chicago Windows Solutions
Schaumburg, ILPrice Transparency
Timely Service
Free assessment
Services Offered
Double-Hung
Window Replacement/Installation
Bay Windows
Glass Doors
Vinyl Frames
Chicago Window Repair & Replacement Company
Chicago, ILFree assessment
Timely Service
Good Customer Service
Services Offered
Wood Frames
Glass Repair
Window Repair
Glass Doors
Storm/Impact Windows
Metal Frames
Energy-Efficient Options
Bay Windows
Window Replacement/Installation
Vinyl Frames
Contractor BG-High Quality Roofing and Exterior Repair Services
Mt Prospect, ILFree assessment
Services Offered
Window Replacement/Installation
Glass Doors
EXTERIORS Windows & Siding Installers
St. Charles, ILGood Customer Service
Free assessment
Price Transparency
Services Offered
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
ACE Roofing Contractors & Roof Replacement
St. Charles, ILFree assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Downers Grove, IL 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 Downers Grove Saves You Money
By switching to energy-efficient windows, you can enjoy several benefits, such as:
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, particularly if you have an older home.
- Reduce your carbon footprint: In Downers Grove, you can reduce your indirect greenhouse gas emissions by about 449 pounds per year after you switch to energy-efficient windows.
- Save money on electricity bills: Since energy-efficient windows reduce how much energy you need to heat or cool your home, the switch can help you save around $300 annually on your energy bills in Downers Grove.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Downers Grove
Windows come in varying styles, purposes and shapes, so costs and services will vary remarkably depending on your project. Below, we describe the average cost and services that you’ll find from window installation companies.
How Much Do New Windows Cost?
On average, Downers Grove homeowners can anticipate their window replacements to range from $250 to $1,200. The most common installations sit at about $600. This is because of the fact that window installations are based on several factors specific to your home, like the size, material and number of windows you need to replace, as well as where your property is located.
It’s important to remember 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 Downers Grove homeowners $300+ a year when replacing single-pane windows.
Getting free quotes from several companies is the best way to figure out which one is right for you.
What Services do Window Installers Offer?
In general, there are two kinds of window replacement services companies provide: full-frame and pocket installations.
Full-frame installations require replacing the full window — the sill, frame, trim and all. These are typically done when you want a different style for your windows or when it has significant rot or deterioration. Full-frame installations are more time-consuming and will increase overall costs. Pocket installations are simpler and won’t carry as large a bill, as they entail simply replacing the window within its existing frame. But if the frame has any damage or rot, you may need a full-frame installation instead.
Your window replacement company should be able to help you choose what’s best for your needs. In Downers Grove, the decision will mostly be based on how old your windows are and if there’s any moisture damage. Wood can decay if not properly maintained over the years, so it’s good to have a professional assess your frames and window sills.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in Downers Grove
EcoWatch reviews are different from other reviews because we look at these companies through a sustainability lens. We have decided to review the top window replacement companies in Downers Grove primarily based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows have been shown to cut your power 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 Downers Grove, we only included companies that provide services to the city. There are other reputable providers that didn’t make the list because of the low odds that they would serve the average homeowner in Downers Grove.
Work Quality
When installing new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand of window you opt for. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another super important review factor. If the majority of customers don’t have nice feedback about their experience with a certain installer, it won’t be featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window companies may not provide the highest quality service. On the other hand, we want to make sure we’re highlighting companies that provide a variety of price and financing options so they’re accessible to most homeowners.
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
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.
Downers Grove, IL Window Replacement FAQs
What is the average cost to install windows in a home?
The average cost to replace a window ranges between $450 and $650. There are several factors that influence the price, which include the number of windows, local labor costs, how energy-efficient the windows are, styles and sizes of windows, the materials used in designing the windows and your property’s location.
What kind of window is the most energy-efficient?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. To be sure you’re getting the most energy-efficient windows, look for models that have the blue Energy Star certification — this means they’re certified energy-efficient by the U.S. Department of Energy.
What do window installation companies do?
Window installation professionals cover the entire process — from replacing old windows with new ones to cleaning up after the installation. Additionally, some companies offer window manufacturing, customization and repairs.
What time of year should I replace my windows?
Replacement windows can be installed during any season, but warmer weather is typically better. No matter when you install them, the contractors will take steps to ensure that too much hot or cold air doesn’t get into the home, so the temperature outside isn’t necessarily a big factor. What’s most important is that the weather should be dry.
Should I replace all my windows at once?
If you want to get more efficient windows and save money on energy costs, replacing all the windows together 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.