Johnson_Melloh_MechanicalJohnson-Melloh Mechanical, founded in 1976, is a LEED-accredited provider of preventative & predictive maintenance and on-call mechanical services for a wide variety of refrigeration, process piping, HVAC, building automation, plumbing and other applications.

We employ over 80 certified technicians, pipefitters, and plumbers. This allows us to deliver a much more cost-effective and high quality service by self-performing a large percentage of the work with no middle-man markup.

We serve a wide range of end markets including K-12 schools, universities, government, hospitals, industrial, commercial and biomedical.