New Slinger Location

Since 1929, The Theilmann Group has been heating and cooling Southeastern Wisconsin. We’re thrilled to announce the newest addition to Theilmann Group’s locations in Slinger, Wisconsin. This expansion enables us to bring our exceptional heating and cooling services to an even larger area that now extends farther north. With this growth, we can provide top-notch service to communities such as Slinger, Mequon, Cedarburg, Grafton, and West Bend. To read more about our Grand Opening click here