10 Best Window Replacement Companies in Janesville, WI

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Last Updated: February 25, 2025

Whether you want to improve your home's value, energy efficiency, or both, replacing your windows is an excellent idea. If your windows are on the older side, 25–30% of your house’s heat or cool air could be leaking out, according to the Department of Energy. In Janesville, this can add up to an extra $355 per year on your electric bills. If you can't decide on a window installation company, you've found the best place to get started. Keep reading to discover the best window installers in Janesville.

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Top Pick
4.1/5
  • Great quality
  • Free assesment
  • Timely Service
Best Customer Service
4.3/5
  • Great customer service
  • Transparent pricing
  • Award winning company
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty

Top 10 Best Window Replacement Companies in Janesville

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Renewal by Andersen of Milwaukee Waukesha Showroom

Renewal by Andersen of Milwaukee Waukesha Showroom Logo

Our Rating

User Rating

1741 Dolphin Dr, Waukesha, WI 53186 (262) 522-1001 rbamilwaukee.com

Free assessment

Good customer service

Educational website

Services Offered

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

Champion Replacement Windows of Milwaukee

Champion Replacement Windows of Milwaukee Logo

Our Rating

User Rating

16560 W Glendale Dr, New Berlin, WI 53151 (414) 208-4056 championwindow.com

Free assessment

Good customer service

Price transparency

Services Offered

Glass doors
Bay windows
Window replacement/installation
Double-hung

Champion Replacement Windows of Madison

Champion Replacement Windows of Madison Logo

Our Rating

User Rating

5321 Voges Rd, Madison, WI 53718 (608) 205-4829 championwindow.com

Good customer service

Transparent pricing and no hidden fees

Free assessment

Limited lifetime warranty

Price transparency

All products made or sourced in the usa

Services Offered

Double-hung
Window replacement/installation
Bay windows
Glass doors

Window Repair & Glass Replacement Company

Window Repair & Glass Replacement Company Logo

Our Rating

User Rating

6612 S 27th St, Oak Creek, WI 53154 (414) 348-4937 argowindowrepair.com

Price transparency

Educational website

Free assessment

Good customer service

Services Offered

Window replacement/installation
Storm/impact windows
Screen repair
Glass doors
Glass repair
Window repair
Metal frames
Double-hung
Energy-efficient options
Vinyl frames
Wood frames
Tempered glass

Argo Glass & Windows - Home Window Repair & Glass Replacement

Argo Glass & Windows - Home Window Repair & Glass Replacement Logo

Our Rating

User Rating

5255 N 91st St, Milwaukee, WI 53225 (262) 419-3604 argowindowrepair.com

Educational website

Good customer service

Price transparency

Free assessment

Services Offered

Tempered glass
Screen repair
Wood frames
Storm/impact windows
Glass doors
Glass repair
Energy-efficient options
Window repair
Double-hung
Window replacement/installation
Metal frames
Vinyl frames

Home Window Repair & Replacement

Home Window Repair & Replacement Logo

Our Rating

User Rating

N128W18368 Holy Hill Rd, Germantown, WI 53022 (262) 444-0916 argowindowrepair.com

Price transparency

Good customer service

Educational website

Free assessment

Services Offered

Window repair
Screen repair
Glass doors
Energy-efficient options
Wood frames
Vinyl frames
Tempered glass
Metal frames
Storm/impact windows
Double-hung
Window replacement/installation
Glass repair

TightSeal Exteriors & Baths

TightSeal Exteriors & Baths Logo

Our Rating

User Rating

16227 W Ryerson Rd, New Berlin, WI 53151 (414) 895-4871 tightsealexteriors.com

Timely service

Educational website

Price transparency

Free in-home consultations

Free assessment

No-interest financing

All products made or sourced in the usa

Good customer service

Services Offered

Bay windows
Window replacement/installation
Glass doors
Vinyl frames
Triple pane glass
Glass showers
Wood frames

Window Depot USA of Milwaukee

Window Depot USA of Milwaukee Logo

Our Rating

User Rating

4630 S Brust Ave SUITE 100, St Francis, WI 53235 (414) 795-4804 windowdepotmilwaukee.com

Price transparency

Free assessment

Timely service

Good customer service

Educational website

Services Offered

Window replacement/installation
Triple pane glass
Energy-efficient options
Glass doors
Vinyl frames
Double-hung
Glass showers
Bay windows

Waukegan Gurnee Glass

Waukegan Gurnee Glass Logo

Our Rating

User Rating

1200 Estes Ave, Gurnee, IL 60031 (847) 623-4141 wgglass.com

Price transparency

Good customer service

Free assessment

Services Offered

Storm/impact windows
Mirrors
Glass doors
Double-hung
Custom glass
Energy-efficient options
Tempered glass
Window replacement/installation
Glass showers
Metal frames

Infinity Exteriors

Infinity Exteriors Logo

Our Rating

User Rating

2830 Progress Rd, Madison, WI 53716 (608) 909-6362 infinityroofing.com

Free in-home consultations and estimates

3d home visualizer

Educational website

Free assessment

Lifetime workmanship warranty

Price transparency

Good customer service

Services Offered

Energy-efficient options
Wood frames
Bay windows
Window replacement/installation
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 Janesville?

The amount you'll spend on window installation or replacement varies based on several factors, including the materials you choose, the number and size of the windows, and how difficult your windows are to access or install. On average, homeowners in Janesville spend around $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

Adding new energy-efficient windows can substantially enhance your home's insulation, appearance, value, comfort, and noise reduction. Signs that it's time to invest in new windows include the following:

  • Windows that are hard to open, close, or lock properly due to age and wear.
  • Drafts and cold air coming in through old, loose-fitting windows.
  • High energy bills and a chilly house from poor insulation around windows.
  • Fogging between window panes, condensation issues, or rotting window frames that let in moisture.
  • Inefficient and outdated window styles that take away from your home’s curb appeal.

How To Choose a Window Company

Choosing a window installer with appropriate qualifications helps ensure a smooth installation. We explain the most important qualities to consider when choosing a qualified provider below.

Experience

Make sure you hire a seasoned local installer with a proven track record of successfully installing and replacing windows. Companies that have been operating locally for many years are more likely to have a deep knowledge of the local climate and local homeowners' needs. Get references from recent clients to learn more about a provider’s service.

Certifications

Select an installer that is accredited by leading window companies and associations like the Fenestration and Glazing Industry Alliance, formerly known as the AMMA. Appropriate accreditation means that a contractor has training in best practices for installation. Confirm that installers are staff rather than subcontractors, and verify that any technicians working on your home are certified.

Reputation

Spend time looking through online reviews, checking the Better Business Bureau, and asking for local references. Review customer feedback to verify that the company regularly provides good workmanship and service. Steer clear of companies with complaints of poor or incomplete work.

Process

A quality provider will give you a detailed project plan, detailed timeline, clear expectations, and an overview of all material and installation options. Avoid providers that offer unclear quotes or timelines. Ask for continual contact throughout the process, so you aren't caught off guard when installation starts.

Warranties

Seek out window installers that offer guarantees on materials and labor. This demonstrates confidence in their work. Research companies that offer unlimited lifetime warranties that can transfer to new homeowners.

Materials

Confirm that a window installer offers windows built for longevity as well as leading energy-efficient window bands that match your budget. Research choices with good energy ratings, design flexibility, and enhanced UV protection, and verify that the materials come with their own manufacturer warranties.

Frequently Asked Questions About Window in Janesville, WI

In Janesville, the best time to install windows is when temperatures are mild, generally in the spring or fall. This allows installers to do their work with less worry about the weather.

The best type of replacement window for your Janesville home will depend on your home's age, as well as your style preference and budget. You'll want to consider the style of your home — such as if it's older — so your new windows match. Wood windows can give a classic look and appearance, while vinyl-framed windows are more popular in more modern homes. Fiberglass-framed windows are also a popular choice, as they can be energy efficient and durable.

The types of window that generally last longest are ones made of vinyl or wood, with triple glaze for extra insulation. Vinyl windows are known for their durability and require little maintenance, while wood windows provide a more traditional look. Tripling up on the glazing will help reduce energy costs over time. This is especially helpful during Janesville's cold winters.

The installation process for windows typically takes 1–3 days depending on the number of windows to be installed. Professional window installers should be able to provide an estimate on the time it will take to complete the installation process, but you can expect it to take around 30 minutes per window.

You should wipe away any debris or dirt buildup on the windows when they get dirty. Additionally, you ought to inspect your windows monthly to make sure they're working correctly. It's also a good idea to get a professional to inspect your windows once a year for any potential damages or issues.

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

Getting windows installed by a professional can provide a number of benefits. Professional installers can guarantee that your windows are properly fitted, sealed, and insulated, minimizing air leakage and maximizing energy efficiency. Professional installers are also well-equipped with the necessary tools and techniques to get the job done, saving you time and money.

Other Janesville, WI Home Services

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