Triangle Services specializes in providing facility and equipment operations management, maintenance and support services spe ... cifically designed to meet our customers' needs. Triangle Services is uniquely qualified to provide system solutions and site specific service delivery approaches for facility maintenance, janitorial services, security services, conveyance systems, HVAC, electrical, lighting and plumbing systems, facility equipment, heavy cargo equipment, aviation/ramp services, building access systems, bar code systems and automated building controls. read more