20 Best Window Companies in Rockford, IL (2023 Reviews)
When you need to upgrade 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 Rockford and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
A guide on the top window replacement companies in Rockford may not seem like the most compelling article on EcoWatch, but trust us, windows have more of an impact on your life than you might think. Potential leaks or drafts can decrease your home's energy efficiency by up to 30%, according to the Department of Energy. In Rockford, that's nearly $318 per year that you could save on your power bills after making the switch.
Luckily, saving you energy with more 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 Rockford, you've found the best place to get started.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Rockford
The EcoWatch team researched dozens of window providers across Rockford to narrow our list down to the best ones. The installers in this article scored best in our review categories, such as energy-efficient offerings, local expertise, price, customer service, availability and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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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 been in the window installation industry for about 27 years. Many positive reviews from customers online 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 company for you.
Energy Efficiency of Window World WindowsWindow World is an Energy Star partner offering 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 Rockford?Prices aren’t available on Window World’s website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to request a free quote from the company.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen has the best availability in Rockford. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been in business since 1995 and currently serves nearly every state except Mississippi and West Virginia.
You may want to consider choosing 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 WindowsRenewal by Andersen is an Energy Star partner and offers 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 Rockford?Prices aren’t mentioned on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate pricing information is to get a free quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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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. This window installation company has been in business since 2002 and currently provides services to 27 states nationwide. Hundreds of positive reviews from customers online back the company's reputation.
It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThere are a wide range of window types available from Universal Windows Direct, some of which are Energy Star products. 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 Rockford?Even though pricing information is not readily available on Universal’s website, 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. You can inquire about a free quote on its website for more information about the cost.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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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 been in the window installation industry for about 16 years. Many positive reviews from customers online 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 company for you.
Energy Efficiency of Window Nation WindowsWindow Nation is an Energy Star partner offering 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 Rockford?Prices aren’t available on Window Nation’s 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. The best way to get more accurate pricing information is to request a free quote from the company.
We try to remain unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.
More Window Companies in Rockford
Window World of Rockford
Loves Park, IL-
Good Customer Service
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Educational Website
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Free assessment
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Timely Service
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Price Transparency
Services Offered
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Energy-Efficient Options
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Window Repair
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Bay Windows
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Glass Showers
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Commercial Windows
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Custom Window Designs
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Window Replacement
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Fast Delivery
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Double-Hung
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Residential Windows
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Sliding Glass
Champion Replacement Windows of Madison
Madison, WI-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Bay Windows
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Custom Window Designs
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Sliding Glass
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Residential Windows
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Window Replacement
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Double-Hung
Pella Window and Door Showroom of Rockford, IL
Rockford, IL-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Fast Delivery
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Window Replacement
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Double-Hung
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Residential Windows
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Custom Window Designs
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Sliding Glass
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Commercial Windows
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Stained Glass
Home Services at The Home Depot
Rockford, IL-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Custom Window Designs
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Fast Delivery
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Window Replacement
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Commercial Windows
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Residential Windows
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Stained Glass
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Glass Showers
Freedom Builders & Remodelers
Rockford, IL-
Price Transparency
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Educational Website
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Free assessment
Services Offered
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Residential Windows
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Window Replacement
Kobyco Inc
Loves Park, IL-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Commercial Windows
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Window Replacement
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Residential Windows
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Sliding Glass
XL Contracting
Roscoe, IL-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Energy-Efficient Options
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Window Replacement
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Commercial Windows
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Bay Windows
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Residential Windows
Responsive Roofing, LLC
DeKalb, IL-
Price Transparency
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Good Customer Service
Services Offered
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Commercial Windows
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Residential Windows
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Window Replacement
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Custom Window Designs
Wisco Roofing and Windows
Janesville, WI-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Window Replacement
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Fast Delivery
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Residential Windows
Classic Glass and Glazing Co
Gilberts, IL-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Energy-Efficient Options
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Fast Delivery
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Glass Showers
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Window Replacement
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Commercial Windows
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Window Repair
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Residential Windows
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Stained Glass
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Custom Window Designs
Your Window Solutions
Lake in the Hills, IL-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Sliding Glass
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Window Replacement
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Custom Window Designs
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Bay Windows
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Residential Windows
Custom Quality Windows
Evansville, WI-
Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Double-Hung
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Window Replacement
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Commercial Windows
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Residential Windows
Renowned Building Solutions
McHenry, IL-
Price Transparency
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Good Customer Service
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Free assessment
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Timely Service
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Educational Website
Services Offered
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Double-Hung
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Residential Windows
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Window Replacement
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Commercial Windows
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Custom Window Designs
Window Well Services LLC
Elgin, IL-
Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
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Aluminum Window Frames
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Fast Delivery
WarmDreams Windows & Doors
East Dundee, IL-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Double-Hung
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Window Replacement
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Bay Windows
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Sliding Glass
Chicagoland Window Wizards
St. Charles, IL-
Timely Service
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Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Residential Windows
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Sliding Glass
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Double-Hung
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Custom Window Designs
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Window Replacement
Goverla Windows and Doors
Fox River Grove, IL-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Custom Window Designs
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Window Replacement
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Energy-Efficient Options
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Double-Hung
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Sliding Glass
Casco Industries
South Elgin, IL-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Residential Windows
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Window Replacement
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Glass Showers
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Fast Delivery
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Custom Window Designs
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Sliding Glass
WellExpert
East Dundee, IL-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Custom Window Designs
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Window Replacement
American Quality Windows Inc
Chadwick, IL-
Free assessment
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Price Transparency
Services Offered
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Energy-Efficient Options
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Commercial Windows
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Window Replacement
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Custom Window Designs
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Double-Hung
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Residential Windows
Calculate how much you can expect to pay for window installation and replacement in Rockford, 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 Rockford 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:
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its value, particularly if you have an older home.
- Save money on power bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of residential energy use. Switching to energy-efficient models can help decrease how much energy is used in your home, therefore saving you about 12% more on your bills.
- Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help reduce damage from the sun's UV rays to your floors, carpets and furniture.
- More efficient energy usage in your home: In Rockford where the winters can get very cold, energy-efficient windows lower the amount of heat that is lost through your windows, which makes it easier to keep your house warm.
Estimated Cost of Window Replacement in Rockford
Let's go over the cost of installing new windows and the types of services you may need for your home.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range from $200 to $1,200. How much it will cost varies depending on several factors, such as the location of your home, size, type, number of windows, material and more.
With windows, efficiency is the most important factor for most homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — especially during the summer and winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Rockford homeowners $318+ each year after replacing single-pane windows.
The cost of your window installation will also vary depending on the type of window material you choose for the frames. Wood windows are typically the most expensive, though it depends if they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
There are typically two types of window replacement services: full-frame and pocket installations.
Full-frame installations entail replacing the full window, including the sill, frame and trim. You most likely need a full-frame installation when you want to change the style of your windows or your window has noticeable rot or deterioration. Full-frame installations are more involved and will raise the overall cost. Pocket installations (or retrofits) involve installing a new window within its existing frame, which makes pocket installations more simple and affordable. But, if the frame has any damage or rot, you should opt for a full-frame installation instead.
Your window installation company can advise you on the best type for your project. In Rockford, the choice will mostly be based on how much damage there is currently and the age of your existing frames.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Rockford
In our search to find the most reliable, eco-friendly window installers in Rockford, EcoWatch chose the above companies as the top window installation companies in the city. Along with energy efficiency, we reviewed each installer and assigned rankings based on the following methodology:
Service Area
Because this is a guide for Rockford, we paid more attention to companies that cover the city. There are certainly reputable providers that didn't make our list because they wouldn't be able to serve homeowners in Rockford.
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 included in our guide to make sure its technicians are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If most customers don't have good things to say about their experience with a certain company, you won't see it featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs as low as 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
Due to Rockford's climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of Rockford window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Rockford, IL Window Replacement FAQs
How much should window installation cost?
The national average cost to replace one window is about $600 but can range from $200 to $1,200, depending on several factors. The price is often influenced by the location of your property, the size of the window and the type and material of the window. Also, keep in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What are the most common types of replacement windows?
There are various kinds of windows you can get for your home, such as transom windows, double-hung and single-hung windows, casement windows, bay windows, slider windows, picture windows and awning windows.
What services do window replacement companies provide?
Window installation companies cover the entire process — from replacing your old windows with new ones to cleaning up after the windows have been put in place. Additionally, some companies offer window manufacturing, customization and repairs.
How long does window installation generally take?
Each window takes around 30 minutes to install based on the type of window. However, the window installation can take two days or more if you have a lot of windows that have to be installed.