Business Description

The Thielmann Group is proud to be your heating and cooling experts in Southeast Wisconsin since 1929! With locations in New Berlin, Hartford, Oak Creek, Burlington, and Waterford, we provide exceptional service to residential and commercial customers across all of southeast, WI. When you turn to Thielmann & Son for your furnace repair, air conditioner repair, or the installation of new equipment, you will have the peace of mind knowing that we have spent over 90 years making homes comfortable.

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