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10 Best Window Replacement Companies in DeKalb, IL

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Written By David Cusick

Last Updated April 2024

Whether you want to improve your home's value or decrease your energy bills, replacing your windows is a great idea. In DeKalb, you could save around $298 per year on your energy bills after upgrading your windows. Drafty windows can decrease your home’s energy efficiency by up to 30%, according to the Department of Energy. Our guide to the best window installation companies in DeKalb will help you select the right installer for you.

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Top 10 Best Window Replacement Companies in DeKalb

Renewal by Andersen of Chicago

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14503 S Gougar Rd #800, Lockport, IL 60491 (866) 836-2764 renewalbyandersen.com

Price transparency

Good customer service

Educational website

Free assessment

Services Offered

Bay windows
Custom window designs
Double-hung
Window replacement/installation
Skylights
Glass doors

Window World of Rockford

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6010 Forest Hills Rd, Loves Park, IL 61111 (815) 395-1333 windowworldrockford.com

Price transparency

Good customer service

Timely service

Educational website

Free assessment

Services Offered

Window replacement/installation
Bay windows
Double-hung
Energy-efficient options
Custom window designs
Glass doors

Douglas Exteriors

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2045 Coltonville Rd, Sycamore, IL 60178 (815) 751-7682 sidingcontractordekalb.com

Good customer service

Free assessment

Price transparency

Educational website

Services Offered

Window replacement/installation

NextWave Construction Windows, Siding, & Doors

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5N290 Wooley Rd Unit A, Maple Park, IL 60151 (630) 454-5689 nextwaveil.com

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Free assessment

Timely service

Good customer service

Services Offered

Window replacement/installation
Energy-efficient options

Chicagoland Window Wizards

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4n459 School Rd, St. Charles, IL 60175 (773) 251-1463 chgowindowwiz.com

Free assessment

Timely service

Educational website

Good customer service

Price transparency

Services Offered

Window replacement/installation
Glass doors
Double-hung

Freedom Builders & Remodelers

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1125 Milford Ave, Rockford, IL 61109 (815) 985-0310 rockfordremodeling.biz

Price transparency

Educational website

Free assessment

Services Offered

Window replacement/installation
Glass doors

Mr. Handyman of Naperville

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1871 S Randall Rd STE C, Geneva, IL 60134 (630) 280-3455 mrhandyman.com

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Good customer service

Educational website

Price transparency

Timely service

Services Offered

Window replacement/installation
Energy-efficient options

Casco Industries

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540 Division St, South Elgin, IL 60177 (847) 741-9595 cascoonline.com

Free assessment

Good customer service

Price transparency

Services Offered

Energy-efficient options
Vinyl frames
Wood frames
Window replacement/installation
Storm/impact windows
Glass doors
Skylights
Double-hung

McCann Window And Door

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215 W State St, Geneva, IL 60134 (331) 248-0455 mccannwindowanddoor.com

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Good customer service

Price transparency

Timely service

Services Offered

Window replacement/installation
Bay windows
Custom window designs
Double-hung

Pella Window and Door Showroom of Rockford, IL

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4301 11th St, Rockford, IL 61109 (815) 397-6780 pella.com

Educational website

Price transparency

Good customer service

Free assessment

Services Offered

Double-hung
Window replacement/installation
Glass doors
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In DeKalb?

Window installation and replacement costs vary based on a number of factors, including how difficult your windows are to access or install, the number and size of the windows, and the materials you choose. On average, homeowners in DeKalb should expect to spend about $280 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

New, energy-efficient windows can greatly boost your home's value, insulation, noise reduction, appearance, and comfort. Clear indicators that it's time for window replacement include the following:

  • Windows that are difficult to open, close, and lock properly due to age and wear.
  • Cold air and drafts leaking in through old, loose-fitting windows.
  • Discomfort and high energy bills due to poor insulation around windows.
  • Condensation issues, fogging between window panes, or rotting window frames allowing moisture intrusion into the home.
  • Inefficient and outdated window styles that reduce your house's curb appeal.

How To Choose a Window Company

Finding a truly qualified window installer is critical to a successful project. Below, we cover the main factors to consider when deciding which company to hire.

Experience

Look for an established local window company with a proven track record of success installing all window types. Seasoned providers are more likely to have an in-depth knowledge of DeKalb's climate and local homeowner requirements. To confirm a company deliver quality work, request references from recent customers.

Certifications

Select an installer that is certified by major window brands and groups like the Fenestration and Glazing Industry Alliance, formerly known as the AMMA. Suitable credentials show that a contractor is trained in best practices for installation. Confirm that installers are staff rather than subcontracted workers, and verify that any technicians working on your project are certified.

Reputation

Read through online customer feedback, check the Better Business Bureau (BBB), and ask for local references. Review customer feedback to verify that the provider consistently delivers quality work and good customer service. Avoid providers that have complaints of shoddy work or unfinished jobs.

Process

A quality window installer will be able to provide a detailed project plan, precise timelines, clear expectations, and an overview of all material and installation options. Avoid companies that provide ambiguous quotes or schedules. Ask for consistent contact through the whole process to avoid surprises once installation is underway.

Warranties

Search for window installers that back their installations with warranties on labor and materials. This shows confidence in their work. Seek out companies that offer unlimited lifetime warranties that can transfer to new homeowners.

Materials

Verify that your window installer works with trusted, long-lasting brands, offers energy-saving window options, and fits your budget. Look for window options with design flexibility, enhanced UV protection, and good energy ratings. Check whether the materials come with their own manufacturer warranties.

Frequently Asked Questions About Window in DeKalb, IL

In DeKalb, the optimal time to install windows is during the early fall when the temperature is milder, so the windows can seal and adjust properly. A good local window installer in DeKalb will be able to tell you when the best time is to install windows on your home.

The best type of replacement window for your DeKalb home will vary based on your home's age, as well as your personal style and budget. You'll want to consider the style of your home — such as if it's newer — so your new windows match. Wooden windows can give a classic look and feel, while vinyl-framed windows tend to be popular in newer homes. Fiberglass windows are also a popular choice, as they can be energy efficient and durable.

You can save money on your window installation by going with a less expensive option like single-hung vinyl windows. These have lower costs compared to other kinds of windows such as double-hung, wood, or fiberglass windows.

It depends on your specific needs and budget, but generally it's advised to replace all your windows at once if they're not energy efficient. Replacing all your windows at once guarantees that you'll get the most out of your energy efficiency and can possibly save you money in the long run. This is important in DeKalb, where the average energy bills are roughly $1,156 a year.

Yes, many window companies offer financing options for their customers. Some installers provide low-interest or no-interest loans based on your income, while other companies offer special financing plans with terms and conditions that vary depending on the project.

Window companies in DeKalb typically offer a range of services, including measuring and installing new windows, fixing existing windows, swapping out window glass, and installing window treatments. They may also offer extra services such as weatherproofing or cleaning.

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