About us.

The Nantz brothers, John and Thomas, grew up in the Heartland of Wisconsin and enjoy the beautiful weather and outdoors. Having always worked well together, they started Nantz Contracting to bring strong principles and customer focus to the WI Contracting industry.

How it started…

After installing thousands of windows and doing countless renovations and flips working for other people, the Nantz Brothers started Nantz Contracting to bring a new level of customer support to Wisconsin.

The future is bright.

Nantz Contracting wants to help make your dreams come true. Investing in your home will bring benefits for years to come.