Mechanical, electrical, and plumbing systems overlap in almost every building. When each discipline is estimated separately without coordination, scopes get double counted or missed entirely. Coordinated MEP estimating keeps every system covered once.
Define Discipline Boundaries
Start by defining who owns each system. Mechanical covers HVAC, ductwork, piping, and equipment. Electrical covers power, lighting, and low voltage. Plumbing covers supply, drainage, and fixtures. Confirm boundary items like fire protection and controls so nothing is double counted.
Use a Shared Assumptions Log
MEP estimates depend on shared assumptions about heights, access, and coordination. Keep a single log of assumptions each estimator agrees to. When drawings change, update the log so all disciplines price the same conditions.
Review Together Before Bid
Hold a joint review before bid day. Compare quantities where systems interact, such as electrical connections to mechanical equipment and plumbing connections to fixtures. Reconcile differences before submitting.
Trade-Specific References
Each discipline has its own estimating fundamentals. Start with our mechanical estimating guide, electrical estimating guide, and plumbing cost guide.
MEP coordination also depends on clear drawings. Coordinated shop drawings reduce field conflicts, and the shop drawing category explains how detailing keeps systems aligned.
