MEP Consultant Appointment: Scope of Services and Exclusions to Put in the Letter

An MEP consultant's appointment letter should state the stages of service, the drawings and calculations delivered at each stage, the number of review cycles, site visits, approvals support, what is excluded, and which events entitle the consultant to extra fee. A letter that names deliverables and acceptance rules prevents most fee and scope disputes; a letter that says "complete MEP design" invites them.

Why does the scope paragraph decide the relationship?

Most disputes with a consultant are not about quality. They are about whether something was in the fee. Was the fire-fighting design included? Did two rounds of changes mean two, or until the owner is happy? Who files the Fire NOC drawings? A scope written as a list of deliverables settles these questions before they arise.

The Department of Expenditure's Manual for Procurement of Consultancy Services (Second Edition, 2025) is a useful model even for private work. It says terms of reference should list the purpose, a detailed scope of work with schedule, the deliverables and their schedule, what data and facilities the client will provide, and the procedure for reviewing the consultant's work after award. It also says the scope should describe the activities, not dictate the method, and that the terms should be comprehensive without being so detailed that they become inflexible. Use that discipline in your letter.

What stages of service should the letter list?

Break the service into stages, and for each stage name the output, the review step and the point at which the fee falls due. Our guide to MEP design deliverables from concept to as-built gives the content of each drawing set. The table below shows how a scope can be written.

The manual's own guidance on reports is a good fit for the review column: it suggests progress reports every two months for design assignments and monthly for supervision, and that the client should not take more than 15 days to review and approve a draft interim report. If you want a consultant to meet a design schedule, commit your own review time in writing.

What should the letter exclude, in plain words?

Exclusions are not a negotiating weakness. They are the other half of the scope. The common ones are:

• Architectural, structural and landscape design, and the coordination drawings that depend on them, unless the consultant is appointed for coordination.
• Statutory fees, liaison costs and the filing itself, where the consultant prepares the set but the owner files.
• Full-time resident supervision. Periodic site visits are not supervision; say how many visits, how often and what the report covers.
• BIM modelling or clash detection, unless priced and listed. Our note on whether BIM is worth it for a factory explains the decision.
• Process and equipment design that the equipment vendor owns, such as clean-utility package design.
• Value engineering after the design is frozen, and redesign caused by owner changes.
• Certification roles such as energy audits or green-building submissions, which are separate services.

Which events should entitle the consultant to extra fee?

Write the triggers down, so that a request for more money is a contractual event and not a bargaining position:

1. A change in built-up area, load or number of buildings beyond a stated percentage.
2. A change of design after the owner has accepted a stage, other than correction of an error.
3. More than the agreed number of review cycles.
4. Delay in owner decisions or data that extends the consultant's time beyond a stated period.
5. Re-tendering, or a tender in more packages than the letter assumed.
6. Extra authority comments caused by a changed layout rather than a consultant error.

The same list protects you. State that corrections of the consultant's own errors, and comments an authority raises because the submitted design did not meet the code, are at no extra cost. Our guide to how MEP design fees are structured sets out the fee models, and the 12 questions to ask before you sign covers how to test a consultant before the letter is drafted.

What commercial clauses belong in the same letter?

• Acceptance and payment. The consultancy manual's own advice for lump sum contracts is that payment should be made only against a certificate of acceptance of the deliverable. Define what acceptance means and the number of days the owner has to give it.
• Professional liability. The manual says liability is governed by the applicable law unless the parties choose to limit it, and that any limit should not apply to gross negligence or wilful misconduct. It gives a multiple of the contract value, for example three times, as an illustration. Agree a figure with your advisers and ask for professional indemnity insurance.
• Disagreement with the consultant's advice. The manual notes that consultants alone are responsible for their findings, and that where the client does not accept a recommendation, that should be recorded. Record it in the letter's change procedure.
• Conflict of interest. The consultant should not take commission or other remuneration from any contractor or vendor for the same project.
• Ownership of drawings. State that the owner may use the drawings for the project, including for other contractors, and what happens to editable files.

How Secured Engineers helps

Our MEP design consultancy covers electrical, HVAC, fire fighting and plumbing design in-house, with drawings prepared in the form that Fire NOC, Electrical Inspector and DISCOM filings need. Those filings are handled in-house, and where you want a single contract for design and execution, MEPF and solar can sit under one agreement. We work from Noida (Delhi NCR) and Ludhiana, with 535+ projects across 18+ states and 89.77% repeat clients. For a technical review, we read a draft appointment letter, or another consultant's scope, and mark the gaps we find.

To have your scope reviewed, send the draft letter and the brief to our MEP design and approvals team, or message us on WhatsApp, call +91 70099 85817, or ask for a free proposal. The MEPF cost calculator helps set the budget the fee sits inside.