20 Best Window Companies in Fond du Lac, WI (2025 Reviews)

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

We analyzed all the top-rated window companies in Fond du Lac 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 review of the best window replacement companies in Fond du Lac may not seem like the most compelling article on the EcoWatch site, but trust us, windows impact your life more than you might realize. Drafty, leaky windows can cost you in electricity bills. In fact, the Department of Energy estimates that 25-30% of your house’s heat or cool air could be lost through your windows.

Fortunately, helping you save energy with efficient windows also aligns with our goals of conserving energy and the resources it takes to make it.

We’ve put together a list of the top installation companies to help you in your search, so you can not only take advantage of brand-new windows, but also save money on your power bills.

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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

Power Home

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

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Fond du Lac

The EcoWatch Reviews team researched dozens of providers that serve the Fond du Lac area to find the best window installation companies that fit our standards. The providers in this article scored best in our review categories, such as energy-efficient offerings, price, customer service, local expertise, 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 Fond du Lac. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This provider has 27 years of experience in the window installation industry, and it has established itself as one of the most respected companies in the business. The company has hundreds of glowing reviews from customers on online review websites.

It 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 Fond du Lac?

Although pricing is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. If you’d like to know for sure, you can request a quote on the company’s website.

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 Fond du Lac. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the window installation industry, and it has established itself as one of the most respected companies in the business. The company has hundreds of glowing reviews from customers on online 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 Windows

Renewal by Andersen offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 Fond du Lac?

Although pricing is not readily available on Andersen’s website, 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 request a quote on the company’s website.

We have tried to remain unbiased and transparent by mentioning pros and cons for each installer. Additionally, any partnerships do not affect our reviews.

More Window Companies in Fond du Lac

Renewal by Andersen of Milwaukee Waukesha Showroom

Waukesha, WI
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.rbamilwaukee.com/
Address: 1741 Dolphin Dr, Waukesha, WI 53186
Phone: (262) 522-1001

Champion Replacement Windows of Milwaukee

New Berlin, WI
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.championwindow.com/Milwaukee/
Address: 16560 W Glendale Dr, New Berlin, WI 53151
Phone: (414) 208-4056

Tiltin Windows, Doors and More

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

Services Offered

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

Website: https://www.tiltinwindow.com/
Address: 1300 S Van Dyke Rd, Appleton, WI 54914
Phone: (920) 633-3181

Home Window Repair & Replacement

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

Services Offered

  • Service icon Storm/Impact Windows
  • Service icon Screen Repair
  • Service icon Glass Doors
  • Service icon Metal Frames
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Glass Repair
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Wood Frames
  • Service icon Window Repair
  • Service icon Vinyl Frames

Website: https://argowindowrepair.com/wisconsin/window-repair-germantown
Address: N128W18368 Holy Hill Rd, Germantown, WI 53022
Phone: (262) 444-0916

Total Glass And Paint

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

Services Offered

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

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

RNB Design Group LLC

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

Services Offered

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

Website: http://rnbdesigngroup.com/
Address: W157N11647 Fond du Lac Ave, Germantown, WI 53022
Phone: (262) 204-8322

Argo Glass & Windows - Home Window Repair & Glass Replacement

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

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Tempered Glass
  • Service icon Storm/Impact Windows
  • Service icon Window Repair
  • Service icon Metal Frames
  • Service icon Glass Repair
  • Service icon Wood Frames
  • Service icon Glass Doors
  • Service icon Screen Repair
  • Service icon Vinyl Frames

Website: https://argowindowrepair.com/wisconsin/window-repair-milwaukee
Address: 5255 N 91st St, Milwaukee, WI 53225
Phone: (262) 419-3604

Zenith Roofing and Construction

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

Services Offered

  • Service icon Skylights
  • Service icon Window Replacement/Installation

Website: http://zenithroofingco.com/
Address: 1343 Ellis St, Waukesha, WI 53186
Phone: (414) 544-4156

Urban Exteriors

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

Services Offered

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

Website: https://urbanexteriorsgb.com/
Address: 722 Emilie St, Green Bay, WI 54301
Phone: (920) 666-2004

Brighter Concepts Ltd - Solatube, RediLights, Indow Windows

Milwaukee, WI
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Storm/Impact Windows
  • Service icon Skylights
  • Service icon Window Replacement/Installation

Website: http://www.brighterconceptsltd.com/
Address: 3461 N Holton St, Milwaukee, WI 53212
Phone: (414) 332-9050

Absolute Quality Glass

New Berlin, WI
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.aqgglass.com/
Address: 16606 W Rogers Dr, New Berlin, WI 53151
Phone: (262) 309-0348

HomeSealed Exteriors, LLC

New Berlin, WI
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Lifetime workmanship warranty
  • Pros icon Online billing and payments
  • Pros icon Educational Website
  • Pros icon Free in-home consultations
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.homesealed.com/
Address: 2718 S 163rd St, New Berlin, WI 53151
Phone: (262) 784-4460

Four Leaf Roofing & Windows

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

Services Offered

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

Website: https://www.fourleafroofingwindows.com/
Address: 2875 S Moorland Rd, New Berlin, WI 53151
Phone: (414) 404-4830

Absolute Restorations

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

Services Offered

  • Service icon Window Replacement/Installation

Website: https://414roofrepair.com/
Address: 3500 S 92nd St, Milwaukee, WI 53228
Phone: (414) 739-4251

AHT Wisconsin Windows

Appleton, WI
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://www.ahtwindows.com/
Address: 1873 N Casaloma Dr, Appleton, WI 54913
Phone: (920) 831-0682

Packerland Home Improvement

Kaukauna, WI
4.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://packerlandhi.com/
Address: 2204 Tower Dr, Kaukauna, WI 54130
Phone: (920) 759-1234

Windows of Wisconsin

Kaukauna, WI
4.8
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

Website: https://windowsofwisconsin.com/
Address: 2300 Tower Dr, Kaukauna, WI 54130
Phone: (920) 429-9119

Apex Energy Solutions - Window Replacement & Entry Doors

Brookfield, WI
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

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

Website: http://www.apexenergygroup.com/
Address: 4125 N 124th St Suite I, Brookfield, WI 53005
Phone: (414) 465-8099

Window Works

Brookfield, WI
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Skylights
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.windowworkswi.com/
Address: 3485 N 124th St, Brookfield, WI 53005
Phone: (262) 790-4040

Pella Windows & Doors of Brookfield

Brookfield, WI
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

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

Website: http://pella.com/
Address: 19030 W Bluemound Rd, Brookfield, WI 53045
Phone: (262) 783-6600
Fond du Lac Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Fond du Lac, 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 Fond du Lac Saves You Money

There are quite a few benefits of switching to energy-efficient windows. Some reasons you may want to consider making the change include the following:

  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
  • Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Upgrading and repairing your windows is an important part of maintaining your property and its value.
  • Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your carbon emissions. You could reduce it by about 715 pounds.
  • Save on electricity bills: After you switch to energy-efficient windows, you can expect a reduction in your bills by about 12% since you’ll require less energy to heat or cool your home.

Estimated Cost of Window Replacement in Fond du Lac

Let’s go over the cost of replacing your windows and the types of services offered by installers.

How Much Do New Windows Cost?

According to our market research, the national average cost to install a single window is about $600. However, window installation costs can range from $200 to $1,200 per window. These amounts vary depending on the specifics of your installation, such as size, number of windows, type, material, the location of your home and more.

Keep in mind that energy-efficient windows may cost more, but Energy Star predicts the upgrade will save you between $101 and $583 a year when installing single-pane windows and between $27 and $197 a year when installing double-pane, clear glass windows. These savings vary based on your local climate, energy rates and individual home characteristics.

Asking for free quotes from multiple companies is the best way to find out which one will work best for your budget.

What Services do Window Installers Offer?

Generally, there are two types of window replacement services companies offer: full-frame and pocket installations.

Full-frame installations entail replacing the full window, including the sill, frame and trim. Full-frame installations are necessary when you want to change the style of your windows or your window has noticeable rot or deterioration. Because these installations are more involved, they will raise the total cost. A pocket installation means replacing a window without removing the complete frame, which is generally less expensive than a full-frame installation.

If you’re not sure which type of window installation service you need, your installer can advise you. Generally, the choice is influenced by factors such as the age and condition of the home, the type of building material, budget and time restrictions.

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

Power Home

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

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

How We Choose the Best Window Installers in Fond du Lac

In our hunt to make your home improvements easier and more eco-friendly in Fond du Lac, the EcoWatch Reviews team assessed many companies before settling on these. We have assessed the best window installation companies in Fond du Lac mainly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows have been shown to cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

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

Work Quality

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

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If most customers don’t have good feedback about their service from a certain company, it won’t be featured on EcoWatch.

Cost

Cheaper windows certainly don’t mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing the prices of providers, we gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

As discussed, windows are a hefty investment, so you’ll want to make sure that investment is protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have a good track record in the industry. Window installation companies that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.

Fond du Lac, WI Window Replacement FAQs

How much should window installation cost?

The national average cost of installing a single window is about $600 but can range between $200 and $1,200, depending on a few different factors. The price is generally influenced by the size of the window, the location of your property 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.

Which type of window is the best?

A window’s energy efficiency is affected by several factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are often the most energy-efficient since they are certified by the U.S. Department of Energy.

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 one window. Although it’s tempting to try to save money by doing it yourself, hiring a professional is a faster, more efficient and safer option.

Should I replace all my windows at once?

If your windows are greater than 20 years old, it’s probably time to replace all of them. At that point, they are usually less efficient, leakier and/or more damaged than new windows. Doing your windows all at once will involve less paperwork and less time.