Troubleshoot plumbing,electrical and mechanical equipment, mechanical devices, hydraulics, pneumatics, HVAC (Commercial and Residential), fire protection, electrical (industrial, commercial and residential), data writing,building automation (HVAC and electrical), electrical controls, air compressors, conveyors, plumbing, gages, security, lube oil distribution, refrigeration, ice making equipment. Founded in 1972, HES has a proven track record of working successfully and exclusively in the educational environment, maintaining a singular focus on facilities management, undistracted by competing priorities.