Brand Certified
Window World of Fond du Lac
4.7(124 reviews)
Certified by Window World of Fond du Lac • Apr 12, 2026
Business Details
235 Morris St, Fond du Lac, WI
54935, United States
Certified by Window World of Fond du Lac • Apr 12, 2026
(920) 923-4189
Certified by Window World of Fond du Lac • Apr 12, 2026
https://www.windowworldfonddulac.com/
Certified by Window World of Fond du Lac • Apr 12, 2026
About
Certified by Window World of Fond du Lac • Apr 12, 2026
Window Installation ServiceWindow SupplierDoor SupplierSiding ContractorHome Improvement StoreWindow World
Experience Window World's unrivaled ENERGY STAR replacement windows, doors, vinyl siding, and more. Contact us to schedule your free in-home quote today!
Details
- Wheelchair accessible entranceAvailable
Location
Certified by Window World of Fond du Lac • Apr 12, 2026
Hours
Certified by Window World of Fond du Lac • Apr 12, 2026
Monday8:00 AM - 4:30 PM
Tuesday8:00 AM - 4:30 PM
Wednesday8:00 AM - 4:30 PM
Thursday8:00 AM - 4:30 PM
Friday8:00 AM - 4:30 PM
SaturdayClosed
SundayClosed
Reviews
4.7
124 reviews
5 stars
107
4 stars
8
3 stars
2
2 stars1
1 star
6
- EEEric EvansMar 10, 20265.0Top quality work with the best prices you can get. Got quotes from other places that were double to triple the amount of there’s. Get the work done fast with great attention to detail.
- MJMark & Sherry Whitty jrApr 11, 20245.0Window World was great to have our windows done. Excellent work! We will be recommending them to other's. Thank you Window World!
- MOMindy ODec 12, 20225.0FABULOUS experience! We had all new windows and a patio door installed last week. We had no idea how bad our old windows were until the windtunnel in our main living area disappeared - it is so warm in the house now. Can't wait to see the heat bill drop. The crew are true tradesman and did an excellent job with installation, were timely, polite and very hard working. Everything looks beautiful and works great. They communicated well throughout the order process and have been a delight to work with. Our neighbors were so impressed they are considering new windows now too. I highly recommend WindowWorld for new windows and doors.
- LZLori ZietlowJan 2, 20195.0I've beenba window world customer for years. They have replaced all my windows now. Just had 5 more done and the installers did an excellent job installing and cleaning up. Even replaced some of my older sashes from previous installations year ago. Highly recommend!!
Frequently Asked Questions About Window World of Fond du Lac
What types of payment methods and financing do you offer?
We offer a variety of payment methods and financing options (subject to approved credit) depending on promotional period. Please contact us for more information regarding available options.
Will the replacement windows be installed from the inside or outside?
The majority of our replacement windows are installed from the outside. In some situations it may be necessary to install from the inside. On the day of installation, your installation expert will assess your unique situation and explain the process that will best suit your home.
Do you install replacement windows year-round? If so, will I lose a lot of heat/cooling at the time of installation?
Window World installs replacement windows year-round. An average installation will take only one day. Our crews install one window at a time and are trained to do what they can to minimize heating/cooling loss. The energy savings from your new windows will recover any incremental energy costs incurred during their installation many times over during their lifetime.
How can I prepare my house for my replacement windows?
Please take down curtains, blinds, or any other window treatments. Security sensors should also be removed and turned off by your security company. Please provide our installation expert with a clear path to the window(s) being replaced by moving anything that may be in the way. It is also advisable to remove all wall decorations from the walls close to the windows as they may fall during removal or installation.
How long will it take to get my replacement windows? How much time should I allow for the installation?
Since every window ordered is custom-built to fit your home and design choices, manufacturing times vary. Once delivered, the type of window being installed and the type being removed help determine the amount of time needed to complete the job. On average, each window takes about 30 minutes. Trim work and cleanup will require additional time to complete. An average job will take a single day.
What type of warranty is available for my windows?
All windows and patio doors we sell come with a manufacturer’s lifetime limited warranty and a repair labor guarantee, good for as long as you own your home! Contact us or see our warranties page for more details.
What happens to my old windows?
After installing your new replacement windows we remove all old windows from your property and dispose of them properly. If you wish to keep your old windows or storm windows, please notify the installation crew as soon as it arrives for your installation.
What do I do if there is a problem with the windows?
Most of the issues encountered by our customers are easily corrected and don't necessarily mean that there is a problem with your window. You are always welcome to contact us for help.
What payment methods and financing options does Window World of Fond du Lac accept?
They accept American Express, Cash, Check, Discover, Financing (subject to approved credit), Mastercard, and Visa.
Are replacement windows installed from the inside or outside?
Most replacement windows are installed from the outside, but in certain situations installation from the inside may be necessary. The installation expert will determine the best method on installation day.
Does Window World of Fond du Lac install windows year-round? How is heat/cooling loss managed during installation?
Yes, they install replacement windows year-round. Installations usually take one day, with crews working one window at a time to minimize heating/cooling loss. Energy savings from new windows offset any incremental energy costs during installation.
How should I prepare my home for window replacement?
Remove curtains, blinds, and other window treatments. Security sensors should be turned off by your security company. Provide a clear path by moving items obstructing access to the windows and remove wall decorations near windows.
How long does window installation take and how much time should I allow?
Manufacturing times vary as windows are custom-built. Each window installation takes about 30 minutes on average, with additional time needed for trim work and cleanup. Most jobs complete in a single day.
What warranty does Window World of Fond du Lac offer on their windows and doors?
All windows and patio doors come with a manufacturer’s lifetime limited warranty plus a repair labor guarantee valid as long as you own your home.
What happens to my old windows after installation?
Old windows are removed and properly disposed of unless you notify the installation crew beforehand that you wish to keep them.
What should I do if I encounter a problem with my new windows?
Many issues are easily corrected. Customers are encouraged to contact Window World of Fond du Lac for assistance.
What are the business hours of Window World of Fond du Lac?
They are open Monday to Friday from 8:00 AM to 4:30 PM and are closed on Saturdays and Sundays except by appointment.
What nearby places can I visit before or after my appointment at Window World of Fond du Lac?
Nearby you can visit The Green Dragon Brewpub for a relaxing meal or drink, Share Fine Art Galleries if interested in local art, and Los Mezcales Bar & Grill for Mexican cuisine. These spots offer great options to enjoy the Fond du Lac area around your visit.
How can I reach Window World of Fond du Lac if I need transportation options?
Hometown Taxi Services is nearby and can assist customers who need transportation to and from the store or other locations in Fond du Lac.
Are there any nearby services that complement home improvement needs around Window World of Fond du Lac?
Yes, William Sesing Construction Inc. nearby offers contractor and roofing services, and Ziegelbauer HVAC provides HVAC and plumbing services, enhancing your home improvement options in the area.
Brand Certified Facts from Window World of Fond du Lac
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