Mechanical Contractor (CM and RM)

A contractor whose services are unlimited in the execution of contracts requiring the experience, knowledge, and skill to install, maintain, repair, fabricate, alter, extend, or design central air-conditioning, refrigeration, heating, and ventilating systems, including duct work in connection with a complete system. A "mechanical contractor" shall not perform any work shall not include any work such as liquefied petroleum gas fuel lines within buildings, potable water lines or connections, sanitary sewer lines, swimming pool piping and filters, or electrical power wiring.