For over 70 years, Steiner Heating & Air Conditioning Inc. of Plymouth, WI has been exceeding comfort, quality, and performance expectations. We are a family owned and operated business, offering heating and air conditioning service and installation throughout all of Sheboygan County. Because we have been in the community for so long, our client base consists of thousands of satisfied customers, who are so impressed by our friendly and courteous service that they refer our business to their family and friends. These referrals, paired with our customer dedication, have secured us a reputation as one of the most trusted heating and cooling companies in the area.. Humidifying Apparatus Sheet Metal Work