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Our Service Areas

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:

Contact us today at (608) 222-1243 or reach us online to discuss your project and schedule a free quote!

Local Reviews

Ganser Company Inc. Rated 5.0 out of 5 stars based on 13 customer reviews

Map of Belleville, WI

Great product, work and service!




Review of Ganser Company Inc.

In the past 15 months we have used Ganser for three major home improvement projects; attic insulation, new roof, and new siding. We are very pleased and satisfied with their work. All the people have been very professional, hardworking, and respectful. Also we have been very impressed with their attention to customer service. We felt like they took the worry out of the projects. In addition, we really like their warranties. In summary, we are very happy with their work on all the projects.


Map of Madison, WI

Denise G




Review of Ganser Company Inc.

We couldn’t be happier. Had a new patio door installed. Great experience from beginning to end. Prompt quote, continuous schedule updates, installers were amazing. And the work they did is just beautiful. We’ve done four projects with Ganzer and have been happy every time!


Map of Sun Prairie, WI

New insert windows by Infinity




Review of Ganser Company Inc.

Jason the salesperson was very professional. He explained my options well. Pricing was competitive. Wasn’t the least expensive or the highest price of our 3 proposals. We choose Ganser Co. because of the history of the company. Work crews were courteous and professional. Ganser Co. has a very good workmanship warranty. And the Infinity windows has an excellent warranty. So if you want a high quality window at a great price, GANSER THATS THE ANSWER!


Map of Jefferson, WI

Service




Review of Ganser Company Inc.

We do think Marc did a great inspection of our roof concerns and construction of our home. See you again THANKS Glenn and Shirley


Map of Madison, WI

Window replacement




Review of Ganser Company Inc.

We met with Jason Hawkins from Ganser and Company several months ago about getting our windows replaced we went through the process all the while he answer what questions we needed and looked at the things that we wanted most and helped us find a solution for the problem the installation went off without a hitch and can’t say enough about the install team or Jason we absolutely love our windows and would recommend Ganser Company in the future


Map of Jackson, WI

Bathroom remodel




Review of Ganser Company Inc.

Jason was wonderful to work with for upcoming bath remodel. Explained everything to us and made us feel confident with the decisions we made.


Map of Sun Prairie, WI

Bathroom/window/sun tunnels




Review of Ganser Company Inc.

We met with Jason Hawkins he answered all her questions and was very courteous and informative we signed for a Kohler bathroom remodel and are meeting him Monday for a window Sun tunnel and entry door We’ve had a lot of negative experiences with contractors and so far through the experience with Ganser Company think we have found an exception to that rule


Map of Sun Prairie, WI

Bathroom remodel




Review of Ganser Company Inc.

Jason did a fine job we are very pleased with this process and can’t wait to get our new bathroom installed


Map of Madison, WI

Great Service




Review of Ganser Company Inc.

Joe was great! Polite, quick, and thorough. Thanks!


Map of Madison, WI

Good company




Review of Ganser Company Inc.

Great company to work for. Great quality work


Kevin M.

Kevin M.

Soffit and facia replacement

Near Jasmine Dr, Madison, WI 53719
Marc G.

Marc G.

Siding

Near Tecumseh Ave, Monona, WI 53716
Monona, WI - Siding
Kevin M.

Kevin M.

Flooring replacement

Near La Crosse Ln, Madison, WI 53705
Kevin M.

Kevin M.

Window replacement

Near Viking Rd, Mount Horeb, WI 53572
Kevin M.

Kevin M.

Window replacement

Near Middleton Beach Rd, Middleton, WI 53562
Kevin M.

Kevin M.

Window replacement

Near Sabertooth Trail, Madison, WI 53719
Marc G.

Marc G.

Roof, Window, siding

Near High Rd, Middleton, WI 53562
Middleton, WI - Roof, Window, siding
Kevin M.

Kevin M.

Patio door

Near Warner Ln, Madison, WI 53713
Kevin M.

Kevin M.

Gutters

Near Park Dr, Horicon, WI 53032
Kevin M.

Kevin M.

Siding replacement

Near Branford Ln E, Madison, WI 53717