How Much Does MEP Engineering Cost?
MEP engineering typically costs a few thousand dollars for a straightforward residential project and scales up with commercial size and complexity. The final number depends mostly on project size, how complex the mechanical, electrical, and plumbing systems are, and what your building department requires for permit.
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What drives MEP pricing
Three things move the price: scope, complexity, and jurisdiction. A simple tenant improvement with existing HVAC is cheap; a new restaurant with grease interceptors, commercial kitchen hoods, and full electrical service upgrades is not. Some cities also require energy compliance calculations and Title 24-style documentation, which adds engineering hours.
Typical residential and commercial ranges
For homes, MEP plans for an addition or remodel usually run in the low thousands. Full custom homes cost more because every system is designed from scratch. Commercial work is commonly priced by scope or square footage, and the range is wide — a small office TI is modest, while a new multi-story building with complex ventilation or process loads can be many times that.
What you actually get
MEP drawings include mechanical plans with equipment schedules and ventilation calculations, electrical plans with panel schedules and load calculations, and plumbing plans with fixture layouts and gas or water sizing. They also include the details and notes a plan checker needs to verify code compliance. That completeness is what you're paying for — thin drawings come back with corrections.
The bottom line
MEP cost tracks scope and complexity, not a flat rate. Get a fixed quote tied to exactly what your jurisdiction requires, and make sure energy calculations are included if your city asks for them.