United Mechanical Corporation is the one of the largest mechanical solutions providers in North and South Carolina. The company has preventive maintenance programs, which are designed to reduce energy costs, improve employee productivity, extend equipment life and reduce equipment downtime. Additional services it provides include unit replacement, process system requirements, system expansions and system renovations. The company installs variable air volume systems, chilled water systems, hot water and steam heating systems, industrial makeup air heating systems and air rotation systems for distribution centers. United Mechanical Corporation is a privately held company that is located in Charlotte, N.C.