MEP (Mechanical, Electrical, and Plumbing) consultants are professionals who provide design and engineering services for building systems related to heating, ventilation, air conditioning, electrical, and plumbing. They work in collaboration with architects, builders, and project managers to ensure that the MEP systems of a building are properly designed, installed, and maintained. MEP stands for Mechanical, Electrical, and Plumbing. It is a term commonly used in the construction industry to refer to the engineering systems that are responsible for the mechanical, electrical, and plumbing functions of a building.