For more than 25 years, JMI Mechanical Services Inc. has been dealing in plumbing and heating contracting business. Based in Indianapolis, Ind., the firm provides commercial heating, ventilation and air conditioning (HVAC) service. The company serves a number of customers, including schools, property management companies, universities, commercial, industrial, data centers, libraries and government. It offers an array of HVAC systems, such as centrifugal chillers, heat exchangers, heat pumps, fan coil units, unit heaters and many more. The company's services include piping, plumbing, boiler efficiency testing, energy conservation, building optimization surveys and preventive maintenance services, among others.