20 Best Window Companies in Marengo, IL (2023 Reviews)
Thinking of improving your home's insulation? The best window replacement companies can help.
We analyzed all the top-rated window companies in Marengo 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
Although eco-friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house's efficiency can also have a big impact on home energy conservation. Potential leaks or drafts can reduce your home's energy efficiency by up to 30%, according to the Department of Energy. In Marengo, that's around $317 per year that you could save on your electric bills by making the switch.
Replacement windows improve the insulation in your home, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
Efficient windows are especially important in Marengo, 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 $317 per year.
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 Marengo
The EcoWatch team evaluated dozens of window companies in Marengo to find the top ones for our readers. The companies we've mentioned in this article passed our review standards for energy-efficient offerings as well as price, customer service, local expertise and beyond.

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 has windows expertise in Marengo. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation business for around 27 years.
It has established itself as 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 WindowsThere are a wide variety of window types that Window World offers, 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 Marengo?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. The best way to get more accurate information is to receive 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 Marengo. 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 on customer review websites.
It 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 WindowsThere are a wide range of window types available from Renewal by Andersen, some of which are Energy Star products. 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 Marengo?Pricing information is not available on Andersen’s website because the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you’d like to know for sure, you can receive a quote on the company’s website.

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 offers the best warranty in Marengo. This window installation company has been operating since 2002 and currently serves 27 states nationwide. The company has hundreds of positive reviews from customers on online review websites.
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 that Universal Windows Direct offers, 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 Marengo?Universal doesn’t have any pricing information listed 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. Requesting a free quote on its website is the best way to know for sure.

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 has the best residential windows in Marengo. 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 on customer review websites.
It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsThere are a wide range of window types available from Window Nation, some of which are Energy Star products. Each 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.
How much does Window Nation cost in Marengo?Pricing information is not available on Window Nation’s website because the cost of window replacement differs based on how many and what type(s) of windows you need. However, 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. If you’d like to know for sure, you can receive a quote on the company’s website.
We try to be unbiased and transparent by including pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Marengo
Renewal by Andersen of Chicago
Glenview, IL-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Double-Hung
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Glass Showers
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Sliding Glass
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Full-Service Installations
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Residential Windows
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Window Replacement
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Custom Window Designs
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Stained Glass
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Bay Windows
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Commercial Windows
Window World of Rockford
Loves Park, IL-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
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Timely Service
Services Offered
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Residential Windows
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Glass Showers
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Bay Windows
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Commercial Windows
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Sliding Glass
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Energy-Efficient Options
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Double-Hung
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Fast Delivery
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Window Replacement
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Window Repair
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Custom Window Designs
Champion Replacement Windows of Milwaukee
New Berlin, WI-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Double-Hung
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Bay Windows
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Residential Windows
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Window Replacement
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Custom Window Designs
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Sliding Glass
Window Nation
Romeoville, IL-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Sliding Glass
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Double-Hung
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Stained Glass
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Window Replacement
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Energy-Efficient Options
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Bay Windows
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Residential Windows
Your Window Solutions
Lake in the Hills, IL-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Residential Windows
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Bay Windows
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Custom Window Designs
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Double-Hung
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Window Replacement
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Sliding Glass
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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Window Replacement
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Window Repair
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Energy-Efficient Options
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Stained Glass
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Glass Showers
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Fast Delivery
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Custom Window Designs
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Commercial Windows
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Residential Windows
Renowned Building Solutions
McHenry, IL-
Good Customer Service
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Free assessment
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Timely Service
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Educational Website
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Price Transparency
Services Offered
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Commercial Windows
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Double-Hung
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Window Replacement
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Residential Windows
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Custom Window Designs
Goverla Windows and Doors
Fox River Grove, IL-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Energy-Efficient Options
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Residential Windows
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Custom Window Designs
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Window Replacement
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Double-Hung
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Sliding Glass
Window Well Services LLC
Elgin, 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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Aluminum Window Frames
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Window Replacement
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Residential Windows
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Fast Delivery
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Custom Window Designs
Home Services at The Home Depot
Rockford, IL-
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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Commercial Windows
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Glass Showers
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Residential Windows
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Fast Delivery
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Stained Glass
WarmDreams Windows & Doors
East Dundee, IL-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Fast Delivery
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Energy-Efficient Options
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Window Replacement
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Double-Hung
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Bay Windows
WellExpert
East Dundee, IL-
Educational Website
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Free assessment
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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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Window Replacement
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Residential Windows
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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Residential Windows
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Commercial Windows
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Sliding Glass
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Window Replacement
Pella Window and Door Showroom of Rockford, IL
Rockford, IL-
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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Double-Hung
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Fast Delivery
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Stained Glass
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Commercial Windows
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Custom Window Designs
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Window Replacement
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Sliding Glass
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Residential Windows
XL Contracting
Roscoe, IL-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Commercial Windows
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Window Replacement
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Bay Windows
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Custom Window Designs
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Double-Hung
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Residential Windows
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Fast Delivery
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Energy-Efficient Options
Casco Industries
South Elgin, IL-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Sliding Glass
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Custom Window Designs
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Aluminum Window Frames
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Residential Windows
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Fast Delivery
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Double-Hung
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Glass Showers
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Commercial Windows
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Window Replacement
Responsive Roofing, LLC
DeKalb, IL-
Price Transparency
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Good Customer Service
Services Offered
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Window Replacement
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Custom Window Designs
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Residential Windows
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Commercial Windows
Friendly Windows | Window Replacement
Suite #200F, 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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Window Replacement
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Custom Window Designs
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Double-Hung
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Commercial Windows
Chicagoland Window Wizards
St. Charles, IL-
Good Customer Service
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Free assessment
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Educational Website
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Timely Service
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Price Transparency
Services Offered
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Window Replacement
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Double-Hung
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Sliding Glass
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Residential Windows
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Custom Window Designs
HP Windows And Doors
Barrington, IL-
Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Sliding Glass
Calculate how much you can expect to pay for window installation and replacement in Marengo, 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 Marengo Saves You Money
Energy-efficient windows can benefit you in more than one way. Here are some reasons you may want to consider making the switch:
- Save money on energy bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Switching to energy-efficient models can help lower how much energy is used in your home, therefore saving you about 12% more on your bills.
- More efficient energy usage in your household: Because the winters can get very cold in Marengo, homeowners often depend on their heater during that time. Energy-efficient windows lower the amount of heat that is lost through your windows, which makes it easier to keep your house warm.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Marengo
Let's go over the cost of window installation and the types of services you may need for your home.
How Much Do New Windows Cost?
According to our market research, the typical cost to install a single window is around $600. However, window installation costs can range from $200 to $1,200 per window. These numbers are based on the specifics of your installation, such as type, material, the location of your home, number of windows, size and more.
It's important to remember that windows with the best efficiency may cost more initially but can save you hundreds of dollars by lowering your energy bills. Investing in Energy Star certified windows can save Marengo homeowners $317+ a year when replacing single-pane windows.
Costs will also vary based on the material you choose for your window frames. Aluminum frames have the lowest price. They're sturdy, light and easy to maintain, but offer poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made with wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames are the most expensive 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 question to ask yourself when getting new windows is: Should you get a full-frame installation or a pocket installation?
Full-frame installations require replacing the whole window — the sill, frame, trim and all. These are typically done when you want a different style for your windows or when it has a great amount of damage. Full-frame installations involve more time and labor and will increase overall costs. A pocket installation entails replacing a window without replacing the frame. This means instead of tearing out the whole unit and rebuilding it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.
If you're unsure which type of window installation service you need, your installer can advise you. Typically, 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
- 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 Marengo
EcoWatch reviews differ from other reviews because we examine these companies through a sustainability lens. We have evaluated the top window installers in Marengo mainly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows can cut 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 Marengo, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn't make the cut because they wouldn't be able to serve homeowners in Marengo.
Work Quality
We're willing to bet that you're looking for professionals who do a great job installing windows. We've vetted each company included on this list to make sure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If most customers don't have positive things to say about their experience with a certain company, you won't see it 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 the prices of providers, 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. That's why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Marengo's climate, homeowners will want to mitigate low efficiency, water damage and rot. We factored in local experience to reflect the ability of Marengo window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Marengo, IL Window Replacement FAQs
How much does window installation cost?
The average cost to install one window can range between $450 and $650. There are several factors that influence the cost, including how energy-efficient the windows are, your property's location, local labor costs, the materials used in designing the windows, the number of windows and styles and sizes of windows.
What are the different types of windows?
There are various types of windows you can get for your home, such as casement windows, picture windows, bay windows, awning windows, double-hung and single-hung windows, transom windows and slider windows.
When do I have to use a window installation company?
Unless you have experience with home improvement projects and have the time needed to replace your own windows, we recommend hiring a professional. The process of installing windows is quite involved and can take anywhere from four to six hours for a single window. Although it's tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and much safer option.
Should I replace my windows all at once?
If your windows are greater than 20 years old, you probably need to replace all of them. At that point, they are typically less efficient, leakier and/or more damaged than new windows. Doing your windows all at once will involve less paperwork and less stress.