20 Best Window Companies in Fond du Lac, WI (2023 Reviews)
Looking to improve your home's insulation? The best window replacement companies can help.
We analyzed all the top-rated window companies in Fond du Lac 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
A guide on the top window replacement companies in Fond du Lac may not seem like the most compelling article on EcoWatch, but trust us, windows impact your life more than you might realize. Poor windows can lower your home's energy efficiency by up to 30%, according to the Department of Energy. In Fond du Lac, that's around $520 per year that you could save on your electricity bills by making the switch.
That's bad for both your wallet and the environment, but one of the top window installation companies can help you with that.
Unlike other sites, EcoWatch ranks window replacement companies on energy efficiency while also factoring in cost, customer satisfaction and service area.
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 Fond du Lac
The EcoWatch Reviews team assessed many installers in Fond du Lac to find the top ones for our readers. We assessed the providers on energy-efficient offerings, price, local experience, coverage area, customer service and more.

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 provides windows expertise in Fond du Lac. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has over 27 years of experience in the industry, and it currently serves 200 locations nationwide. Many positive reviews on customer review websites back the provider's reputation.
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 WindowsThere are a wide range of window types available from Window World, 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 Fond du Lac?Although pricing is not available on Window World’s website, it's known for offering some of the most affordable window installations around. For more accurate information on pricing, you can get a 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window installation sector. The company has plenty of positive reviews from customers online.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the perfect company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Fond du Lac?Andersen doesn’t have any prices displayed 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 ask for a free quote on its website for more information about pricing.
We strive to be unbiased and transparent by including pros and cons for every company we review. Additionally, our rankings are not affected by any partnerships.
More Window Companies in Fond du Lac
Renewal by Andersen of Greater Wisconsin
Appleton, WI-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Stained Glass
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Sliding Glass
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Glass Showers
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Residential Windows
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Double-Hung
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Window Replacement
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Commercial Windows
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Custom Window Designs
Window World of Fond du Lac
Fond du Lac, WI-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Window Replacement
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Fast Delivery
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Double-Hung
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
Champion Replacement Windows of Milwaukee
New Berlin, WI-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Double-Hung
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Window Replacement
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Custom Window Designs
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Sliding Glass
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Residential Windows
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Bay Windows
Duncan's Window & Door LLC
Oshkosh, WI-
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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Double-Hung
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Custom Window Designs
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Commercial Windows
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Sliding Glass
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Residential Windows
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Window Replacement
Krier's Construction, LLC
Oshkosh, WI-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
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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Glass Showers
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Commercial Windows
Valley Wide Exteriors
Oshkosh, WI-
Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Custom Window Designs
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Window Replacement
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Fast Delivery
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Residential Windows
Salzer Siding Inc
Oshkosh, WI-
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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Custom Window Designs
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Window Replacement
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Residential Windows
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Aluminum Window Frames
Ripon Window & Door LLC
Ripon, WI-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Window Replacement
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Aluminum Window Frames
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Residential Windows
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Custom Window Designs
Lueck's Home Improvements Inc
Oshkosh, WI-
Educational Website
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Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Commercial Windows
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Window Replacement
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Aluminum Window Frames
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Custom Window Designs
Plymouth Glass
Plymouth, WI-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Commercial Windows
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Glass Showers
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Residential Windows
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Tempered Glass
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Window Replacement
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Custom Window Designs
Windows Preferred LLC
West Bend, WI-
Good Customer Service
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Timely Service
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Price Transparency
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Free assessment
Services Offered
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Custom Window Designs
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Bay Windows
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Residential Windows
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Window Replacement
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Energy-Efficient Options
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Double-Hung
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Sliding Glass
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Commercial Windows
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Fast Delivery
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Window Repair
ARC Contracting
Neenah, WI-
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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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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Residential Windows
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Full-Service Installations
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Bay Windows
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Energy-Efficient Options
Mad City Windows & Baths
Neenah, WI-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Fast Delivery
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Window Replacement
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Sliding Glass
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Double-Hung
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Residential Windows
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Custom Window Designs
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Energy-Efficient Options
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Glass Showers
The Glass Guru
Sheboygan, WI-
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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Tempered Glass
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Custom Window Designs
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Fast Delivery
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Commercial Windows
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Window Replacement
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Aluminum Window Frames
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Window Repair
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Double-Hung
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Glass Showers
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Sliding Glass
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Residential Windows
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Stained Glass
AHT Wisconsin Windows
Appleton, WI-
Good Customer Service
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Price Transparency
Services Offered
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Double-Hung
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Window Replacement
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Sliding Glass
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Stained Glass
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Bay Windows
Square Oaks Home Improvement LLC
Appleton, WI-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Window Replacement
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Sliding Glass
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Double-Hung
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Custom Window Designs
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Residential Windows
Tri City Glass & Door
Appleton, WI-
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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Fast Delivery
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Bay Windows
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Window Replacement
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Window Repair
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Custom Window Designs
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Commercial Windows
Packerland Home Improvement
Kaukauna, WI-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Sliding Glass
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Energy-Efficient Options
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Custom Window Designs
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Bay Windows
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Double-Hung
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Window Replacement
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Glass Showers
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Residential Windows
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Fast Delivery
Windows of Wisconsin
Kaukauna, WI-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Bay Windows
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Energy-Efficient Options
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Stained Glass
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Double-Hung
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Residential Windows
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Custom Window Designs
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Sliding Glass
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Window Replacement
Window and Door Central
Appleton, WI-
Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Bay Windows
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Stained Glass
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Window Replacement
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Residential Windows
Calculate how much you can expect to pay for window installation and replacement in Fond du Lac, WI 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 Fond du Lac Saves You Money
When you switch to energy-efficient windows, you may see several perks, such as:
- Save on power bills: Upgrading to energy-efficient windows reduces your energy bills by about 12% because you need less energy.
- Better temperature control in your home: Living in a cold city like Fond du Lac often means needing your heater to keep your house cool. Energy-efficient windows can cut back on how hard your heating system needs to work to heat your home.
- More efficient energy use in your household: Because the summers can get pretty warm in Fond du Lac, homeowners often rely on their air conditioner a lot. Energy-efficient windows cut back on how much cool air is lost through your windows, making it easier to keep your house cool.
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes tend to have windows that are outdated, leaky or potentially even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Fond du Lac
Windows come in different purposes, shapes and styles, so costs and services will vary greatly depending on several factors. Below, we go over the typical cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
On average, homeowners in Fond du Lac can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at about $600. How much it will cost varies based on several factors, like the location of your home, number of windows, type, size, material and more.
It's also worth keeping in mind that energy-efficient windows will typically cost more upfront, but Energy Star predicts that upgrading the windows on your Fond du Lac home can mean an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. How much you'll save by switching to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Asking for free quotes from several companies is the best way to figure out which one will work best for your budget.
What Services do Window Installers Offer?
The first thing to ask yourself when considering a window replacement is: Should you get a full-frame installation or a pocket installation?
Full-frame installations entail replacing the total 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 significant damage or rot. Because full-frame installations are more involved, they will raise the overall cost. Pocket installations are on the simpler end and won't cost as much, as they entail simply replacing the window within its existing frame. But if the frame has any damage or rot, you may need a full-frame installation instead.
If you're still debating which type of installation you need, you can consult with your provider and get their recommendation. The choice mostly is influenced by the age of your window frames and if there's any damage.
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 Fond du Lac
In our search to find the most reliable, eco-friendly window installers in Fond du Lac, the EcoWatch team chose the above companies as the best window installation companies in the city. We've decided to assess the best window installation companies in Fond du Lac mainly based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows have been shown to reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
Since this is a guide for Fond du Lac, we paid more attention to companies that cover the city. There are other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Fond du Lac.
Work Quality
We're willing to bet that you're looking for professionals who do a great job installing windows. We've vetted each installer featured on this list to make sure its technicians are well-qualified and that the company has gotten a lot 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 good things to say about their service from a certain window installation company, it won't be featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window companies won't always provide the highest quality service. Still, we want to make sure we're highlighting companies that offer a variety of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Fond du Lac's climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Fond du Lac window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Fond du Lac, WI Window Replacement FAQs
What is the typical cost to install windows in a home?
The national average cost to replace one window is around $600 but can range between $200 and $1,200, depending on a few different factors. The price is generally dependent on the location of your property, the size of the window and the type and material of the window. Also, keep in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
What kind of window is the best for energy efficiency?
A window's energy efficiency depends on several factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are usually the most energy-efficient since they are certified by the U.S. Department of Energy.
Do I really need to use a window installation company?
You should hire a window installation professional whenever you need new windows. Installing windows is a involved process that can take a lot of time, so it's best left to the professionals.
How long does window installation typically take?
Because the average installation time is 30 minutes per window, about 16 windows can be installed during a typical 8-hour work day.
How often do you need to replace windows?
Windows generally have a lifespan of about 20 to 30 years, but anytime you notice damage on your windows, it's a good idea to have them looked at by an expert to see if they need any repairs or replacements.