Proudly Serving Dane County & Southern Wisconsin
Get Exceptional Service From a Locally Owned & Operated Company
Ganser Company has been providing exceptional home improvement services for over 80 years. If it’s your home exterior that needs attention, our family-owned, locally owned and operated company offers installation of windows, doors, skylights, roofing, gutters, siding, insulation and many related services. For the interior of your home, we offer full bathroom remodeling.
We are proud to serve our neighbors in the following Wisconsin counties:
- La Crosse
- Green Lake
- Fond du Lac
Window and Door Replacements
Jackie - Sauk City, WI
We love our new Marvin windows and doors from The Ganser Company. We had a few little errors in order entry, but all was fully and promptly rectified and we are very happy! The sales and installation staff are very professional and customer-service oriented and a true pleasure to work with. The windows, patio door, and Provia front entry door are beautiful, smooth-operating, and bring wonderful light into our home while protecting it from the elements. Even during a pandemic, they were able to make this big project happen, for which we are grateful. Thank you, Ganser Company, for a great upgrade to our home.
Very professional and high quality
Natalie - Madison, WI
The windows look wonderful and were exactly what we wanted. The service and installation were very professional and high quality.
Good service, at a respectable price
Pat - Madison, WI
Had a deck door and updated gutters put in by Ganser. Process went really smoothly, they kept in constant contact in the time leading up to the install for any status updates, and the price was fair. I'd go back to them again.
Jon - Oregon, WI
Jason was honest and fun to work with. He did a great job with planning our project. The installers were awesome. The work was done quick and perfect. The new windows look great and the woodwork looks better than the original. Our repainted front door is just what we wanted.
Promises made and delivered
Steve - Madison, WI
From the time we met with Chris to the time that Pete, Nick and Mark cleaned up the worksite, we were pleased and impressed.We would recommend to family and friends.
Bathroom Gut Rehab
Tom - Madison, WI
I am extremely pleased with the workmanship, timing, communication, thoroughness of the contractors. thank you for a job very well done!
service with integrity and dignity
Margie - New Glarus, WI
The lead person on the 2 man crew was careful, very efficient, clean, polite, good to his subordinates and knew the job! He worked as hard as 2 people to get our remodel done and in perfect shape! We are very pleased with end result.
Susan - Sun Prairie, WI
Jason was great, we are getting everything we want done & the cost is great
Jason had great ideas!
Diana - Wisconsin Dells, WI
We told Jason what we thought we wanted and he made it happen and more. We look forward to working with him next year on another window project! We haven’t had the windows installed yet.
Anne - Madison, WI
Wow, our house has been transformed by Ganser Company from top to bottom (literally)! They provided us with a new roof, gutters, downspouts, siding, windows, and sliding glass door. Plus added additional insulation in the attic to increase the R value. Our 1983 house has been updated for the 21st century and looks brand new! Our neighbors all love how it looks as much as we do. We are so proud every time we pull into our driveway.