Keep your home warm and cozy all winter long when you let us repair your furnace!
Our AC services help keep you cool and comfortable in Fond du Lac's summer heat.
Make sure the air in your home is mold free with a duct cleaning or dehumidifier installation.
Save money on your furnace bills! Learn more about the benefits of geothermal energy.
Our AC and heat pump services help keep you cool and comfortable in Fond du Lac's summer heat.
Make sure the air in your home is mold and toxin free with a duct cleaning or dehumidifier installation.
Our history spans four generations.
Frank Kohlman was born in Albany, New York in 1860. When he was five, his family migrated to the Fond du Lac area and lived on a farm. He moved to St. Cloud and in 1913, he purchased a small-town hardware store and named it Kohlman’s Hardware Store.
The business grew under Frank’s son, Herman, selling not only hardware but also farm implements, oils, paint, and the addition of tinning work.
Robert was in World War II, and upon his return, he joined his Father in the business. Robert and his wife, Lorraine added gifts and changed the name to Kohlman’s Hardware and Gift Store.
Douglas Kohlman worked for his Dad when he returned from Vietnam and is the fourth generation to take over the business. In 1970, Douglas made the decision to specialize in heating, ventilating, and air conditioning. He moved the business to the St. Cloud location on Church Street in 1984, where it stands today as D.R. Kohlman, Inc.
For over 105 years, the Kohlman family has earned the trust of Customers in Fond du Lac, Dodge, Sheboygan, Calumet, Manitowoc, Outagamie Counties and beyond. We strive to continuously improve our service and remain current with the rapidly changing technology and equipment in our industry so that we can consistently serve our customer’s needs. We provide not only new and replacement units, but we service units 24 hours a day, seven days a week. We currently have eleven full and part time employees that truly care about your comfort. Our Technicians receive specialized training through apprenticeship programs in sheet metal fabrication, pipe fitting, heating and refrigeration service, as well as, on-site training at our equipment manufacturers’ training centers. We strive to make sure our Customers are comfortable in their homes and businesses.