Its mechanical systems comprise a building's ecology. Gases, fluids, gravity and electricity interact to create a total environment that is more complex than the sum of its parts. A Mechanical Contractor understands their interaction and how to ensure safe and efficient system operation. Only the general contractor and Mechanical Contractor tend to have responsibilities from beginning to end of a project. A Mechanical Contractor's work begins with the underground piping and doesn't end until systems are in operation for beneficial occupancy.
Mechanical systems are the very heartbeat of a building.
They entail some of its most expensive and critical equipment. The Mechanical Contractor understands the complex machinery better than anyone else. His work is more complex and liabilities greater than that of any other trade. When system design is part of his contract scope, he will be the one selecting cost-effective boilers, chillers, air handlers and other major operating units. Otherwise he works closely with the specifying engineer to select the most appropriate equipment, components and controls.