20 Best Window Companies in Portage, WI (2025 Reviews)

If you’re thinking of getting new windows, our guide to the top window installation companies can help.

We analyzed all the top-rated window companies in Portage and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated January 24, 2025

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

A guide on the top window installation companies in Portage may not seem like the most interesting article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might think. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.

Installing upgraded, efficient windows on your house can help you save money every month on your electric bills — and you can help the environment, too.

Because windows have such a large impact on your home, selecting the best company for you is a big choice to make. That’s why the EcoWatch team has put together this list of the top window installation companies, so you can more easily make an informed decision.

Advertisement

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Save 35% + $100 off per window!
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best Window Installation & Replacement Companies in Portage

The EcoWatch team assessed several window installation companies in Portage to find the best ones for our readers. The companies we’ve included in this article scored best in our categories, including energy-efficient offerings, customer service, price, availability and more.

Window World logo
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World provides windows expertise in Portage. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the windows industry, and it currently provides services to 200 locations nationwide. The provider has hundreds of glowing reviews from customers online.

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 Windows

Window World has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 Portage?

Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. You can inquire about a free quote on its website for more information about the cost.

Renewal by Andersen logo
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen provides the best availability in Portage. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the windows industry, and it currently provides services to nearly every state except Mississippi and West Virginia. The provider has hundreds of glowing reviews from customers online.

It has established itself as 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 Windows

Renewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 Portage?

Andersen does not detail prices 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. You can inquire about a free quote on its website for more information about the cost.

We strive to remain unbiased and transparent by describing pros and cons for each provider. Additionally, any partnerships do not influence our reviews.

More Window Companies in Portage

Renewal by Andersen

Madison, WI
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Skylights
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.renewalbyandersen.com/window-company/115-madison-wi/retailer
Address: 5960 Odana Rd #100, Madison, WI 53719
Phone: (608) 442-0032

Champion Replacement Windows of Madison

Madison, WI
4.1
★★★★★
  • Pros icon Limited lifetime warranty
  • Pros icon Free assessment
  • Pros icon All products made or sourced in the USA
  • Pros icon Transparent pricing and no hidden fees
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Glass Doors

Website: https://www.championwindow.com/Madison/
Address: 5321 Voges Rd, Madison, WI 53718
Phone: (608) 205-4829

Exceptional Exteriors LLC

Stoughton, WI
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: http://www.exceptionalremodeling.com/
Address: 441 Glacier Moraine Dr Unit 10, Stoughton, WI 53589
Phone: (608) 354-6887

Infinity Exteriors

Madison, WI
4.9
★★★★★
  • Pros icon Lifetime workmanship warranty
  • Pros icon 3D home visualizer
  • Pros icon Free in-home consultations and estimates
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Wood Frames
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows

Website: https://www.infinityroofing.com/HQ/Madison
Address: 2830 Progress Rd, Madison, WI 53716
Phone: (608) 909-6362

Total Glass And Paint

Hartford, WI
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Screen Repair
  • Service icon Glass Showers
  • Service icon Window Repair
  • Service icon Glass Repair
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Mirrors

Website: http://totalglassservice.net/
Address: 841 Grand Ave, Hartford, WI 53027
Phone: (262) 673-4090

Wisco Roofing and Windows

Janesville, WI
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.wiscoroofing.com/
Address: 1507 Plainfield Ave, Janesville, WI 53545
Phone: (608) 563-0542

Epic Painting & Exteriors

Madison, WI
4.8
★★★★★
  • Pros icon Full-service exterior remodeling
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Energy-efficient
  • Pros icon Educational Website
  • Pros icon Online home visualizer

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.epic-painting.com/
Address: 4611 Dovetail Dr Unit 20, Madison, WI 53704
Phone: (608) 446-2322

Duncan's Window & Door LLC

Oshkosh, WI
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.duncanswindows.com/
Address: 3225 Clairville Rd, Oshkosh, WI 54904
Phone: (920) 267-3440

Martin Glass Company

Madison, WI
4.6
★★★★★
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Doors
  • Service icon Tempered Glass
  • Service icon Storm/Impact Windows
  • Service icon Glass Showers
  • Service icon Window Repair
  • Service icon Mirrors
  • Service icon Screen Repair
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: https://martinglassmadison.com/
Address: 2323 Atwood Ave, Madison, WI 53704
Phone: (608) 249-0438

Steadfast Remodeling, Inc.

Mauston, WI
4.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: http://www.steadfastremodeling.net/
Address: 906 La Crosse St, Mauston, WI 53948
Phone: (608) 547-8086

Window World of Fond du Lac

Fond du Lac, WI
4.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Glass Doors

Website: https://www.windowworldfonddulac.com/
Address: 235 Morris St, Fond du Lac, WI 54935
Phone: (920) 923-4189

Pella Windows & Doors of Madison

Madison, WI
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Wood Frames
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Double-Hung

Website: http://pella.com/
Address: 2101 W Beltline Hwy, Madison, WI 53713
Phone: (608) 271-6800

Mad City Windows & Baths

Madison, WI
4.5
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames

Website: https://www.madcitywindows.com/
Address: 5020 Voges Rd, Madison, WI 53718
Phone: (608) 453-6866

Hometown Glass & Improvement Inc

Beaver Dam, WI
4.4
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Glass Repair

Website: http://hometownglass.com/
Address: N7171 Raceway Rd, Beaver Dam, WI 53916
Phone: (920) 887-3757

Brunke Glass & Window Co Inc

Madison, WI
4.4
★★★★★

    Services Offered

    • Service icon Tempered Glass
    • Service icon Window Replacement/Installation
    • Service icon Glass Showers
    • Service icon Screen Repair
    • Service icon Energy-Efficient Options
    • Service icon Mirrors

    Website: http://www.brunkeglass.com/
    Address: 6702 Watts Rd, Madison, WI 53719
    Phone: (608) 271-3155

    AHT Wisconsin Windows

    Madison, WI
    4.3
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Price Transparency

    Services Offered

    • Service icon Energy-Efficient Options
    • Service icon Window Replacement/Installation
    • Service icon Bay Windows
    • Service icon Triple Pane Glass
    • Service icon Double-Hung
    • Service icon Vinyl Frames
    • Service icon Glass Doors

    Website: http://www.ahtwindows.com/
    Address: 4801 Voges Rd, Madison, WI 53718
    Phone: (608) 838-0233

    Zuern Building Products & Design Center

    Watertown, WI
    4.3
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Free assessment
    • Pros icon Price Transparency

    Services Offered

    • Service icon Window Replacement/Installation

    Website: https://www.zuerns.com/showrooms/watertown-showroom/
    Address: 1800 S Church St, Watertown, WI 53094
    Phone: (920) 261-5676

    Marling Lumber and HomeWorks

    Madison, WI
    4.1
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Price Transparency

    Services Offered

    • Service icon Energy-Efficient Options
    • Service icon Window Replacement/Installation

    Website: http://www.marling.com/
    Address: 613 Atlas Ave, Madison, WI 53714
    Phone: (608) 221-2222

    Wisconsin Building Supply - Mauston

    Mauston, WI
    4.1
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Free assessment
    • Pros icon Price Transparency

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Glass Doors
    • Service icon Bay Windows

    Website: https://www.wibuildingsupply.com/
    Address: 804 N Union St, Mauston, WI 53948
    Phone: (608) 847-5819

    LEI Home Enhancements of Madison

    Madison, WI
    3.4
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Free assessment

    Services Offered

    • Service icon Wood Frames
    • Service icon Window Replacement/Installation
    • Service icon Glass Doors

    Website: https://leihomeenhancements.com/wisconsin
    Address: 6601 Grand Teton Plaza Suite A1, Madison, WI 53719
    Phone: (608) 208-9525
    Portage Window Cost Calculator

    Calculate how much you can expect to pay for window installation and replacement in Portage, WI using our customized window cost calculator.

    Estimated Window Cost:
    161 homeowners have requested a free estimate in the last 3 days.

    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 Portage Saves You Money

    Energy-efficient windows can offer benefits in more than one way. Here are a few reasons you may want to take the plunge and make the switch:

    • Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes usually have windows that are outdated, drafty or maybe even damaged in some way. Updating your windows could help increase the value of your home if you decide to sell.
    • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent damage from the sun's UV rays to your floors, carpets and furniture.
    • Decrease your carbon footprint: Decreasing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 715 pounds per year on average.
    • Save money on electricity bills: Since energy-efficient windows reduce the amount of energy used to heat or cool your home, the switch can help you save around $515 annually on your energy bills in Portage.

    Estimated Cost of Window Replacement in Portage

    Windows come in different shapes and sizes, so costs and services will differ tremendously. Here are the average costs and services that you’ll find from window installation companies.

    How Much Do New Windows Cost?

    Even though the national average cost to install one window is around $600, it can range from $200 to $1,200. This is because window installations depend on several factors specific to your home, like the size, material and number of windows you need to install, as well as where your property is located.

    It’s also worth noting that energy-efficient windows will almost always cost more upfront, but Energy Star estimates that switching out the windows on your Portage home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you’ll save by switching to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

    We advise getting free quotes from multiple window companies to find the one that works best for your budget.

    What Services do Window Installers Offer?

    Generally, there are two kinds of window installation services companies provide: full-frame and pocket installations.

    Full-frame installations involve replacing the full window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has significant deterioration. 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 window and rebuilding it, the contractor will just slide the replacement window (also called a retrofit or insert window) into the frame.

    If you’re still trying to decide which type of installation you should get, you can ask your installer and get their advice. The decision mostly is influenced by the age of your window frames and if there’s any damage present.

    Advertisement

    Best Availability

    Renewal by Andersen

    ★★★★★
    4.5
    • Great Industry Reputation
    • Award-winning Company
    • Member of US Green Building Council
    • Manufactures products in-house
    Save $375 Off Each Window
    Get Estimate

    Best Energy-Efficient Features

    Champion

    ★★★★★
    4.5
    • Many years of experience
    • Low prices relative to competitors
    • Limetime warranty
    Save 35% + $100 off per window!
    Get Estimate

    Power Home

    ★★★★★
    4.5
    • Uses eco-friendly materials
    • Well-trained, certified installers
    • Lifetime or lengthy warranty
    Next-Day Appointments Available
    Get Estimate

    How We Choose the Best Window Installers in Portage

    The EcoWatch Reviews team differs from other reviewers since we look at these companies through a sustainability lens. Along with energy efficiency, we reviewed several window installers in Portage and assigned rankings using the following methodology:

    Service Area

    This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve a wide variety of states and cities so you can find a quality window installation company near you.

    Work Quality

    When installing new windows, the quality and range of services often plays just as important of a role in insulation and performance as the brand you get. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

    Customer Reviews

    We analyzed trends in recent online reviews to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including professionalism, quality of parts, warranty, cost, quality of installation and more.

    Cost

    This one is a give-and-take: as with other services, cheap window installers may not provide the most quality service. Still, we want to make sure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.

    Warranty

    As discussed, windows are a substantial investment, so you’ll want to be certain that investment is protected. Window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

    Years of Experience

    Due to Portage’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Portage window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

    Portage, WI Window Replacement FAQs

    How much should a window install cost?

    The average cost of replacing a window ranges from $450 to $650. There are many factors that affect how much it costs, such as styles and sizes of windows, the materials used in designing the windows, local labor costs, your property’s location, how energy-efficient the windows are and the number of windows.

    What are the types of windows?

    The most common types of windows for homes include: slider windows, awning windows, casement windows, double-hung and single-hung windows, picture windows, bay windows and transom windows.

    What services do window replacement companies do?

    Window installers visit your home to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation.

    What time of year is a good time to replace my windows?

    Though you can install windows any time of year, warmer weather is generally better for installing replacement windows. In addition, the weather should be dry, since rain can make the installation more difficult.