Doler Services Plumbing Heating & Cooling, in Northwest, Indiana, is the area's leading heating and cooling specialist serving Chesterton, Valparaiso, Portage, Michigan City, LaPorte, Berrien County, Michigan, and surrounding areas since 1953. We specialize in heating, cooling, plumbing, repairs, furnaces, air conditioning, boilers, and more. For all your heating, cooling, or plumbing needs, contact Doler Services Plumbing Heating & Cooling, in Michigan City. Taking care of your family has been my family's business for more than 60 years.