Since 1969, Mainelli has grown to offer full service mechanical and plumbing contracting in Nebraska and Iowa. Under the lead ... ership of the McNeil family, the Mainelli team works around the belief that the ideal building is a fully-integrated, streamlined entity with mechanical systems that support the people and the business it serves. With this guiding principle Mainelli has become regarded as one of the best mechanical contractors in the area. Today, Mainelli Mechanical Contractors, Inc. provides design, construction, fabrication, process piping, plumbing, medical gas piping, maintenance and services to clients in a variety of fields, including healthcare, commercial, institutional, data centers and telecommunication firms, government facilities, and educational facilities. read more