SystemAire, Inc. is a Mechanical Contractor located in Earth City, MO. The Company was incorporated by its Founder, Phillip R ... . Sams, in December 1966. SystemAire employs various trades including union pipe fitters, sheet metal workers and teamsters. Total employees varies from 50 - 100 employees depending on the workload. As a full service company, SystemAire offers a complete range of engineering, sheet metal, pipefitting, HVAC controls, certified air and water balancing, service maintenance contracts, backflow prevention, regular service, and the ancillary services these categories imply. read more