Mechanical electrical and plumbing services in the planning, design, and maintenance of different elements of a building which can be classified under one or more of the headers; mechanical, electrical, and plumbing services. Commonly known as MEP, these services are essential not only during the construction of a building but also during its lifetime. The major services offered under the MEP service provider are maintenance of the HVAC system, installation, and maintenance of electrical lines and power circulation, maintenance of pipes and the plumbing system to ensure proper cleaning and water sanitation.