Johann Heating & Cooling is a family owned and operated Heating and Air Conditioning company with over 25 years of experience in Winnebago County & Boone County area. We service residential & small commercial customers. We have 24 hour emergency service on all makes & models. We do sales-service-and installation of furnaces, boilers, air conditioners, water heaters, air cleaners, humidifiers, and more. Call us today and you'll know why Johann Heating & Cooling is the obvious choice to call.