Heating, Ventilation & Air ConditioningHeating, ventilation and air conditioning (HVAC) repairs, installation and service companies in the Marshalltown area. Narrow your search: Category» City» A-Z» Results: 1-3 of 6  Ethington Heating & Cooling Inc816 N 3rd Ave A) B) Ethington Heating & Cooling Inc816 N 3rd Ave , Marshalltown, IA 50158 C) Data has been provided in part by Localeze. | |