MEP AMC scope after an expansion or renovation — the asset register, tasks, exclusions and records to update

An expansion or renovation adds plant, moves services and changes how the building is used. The AMC usually does not change with it: the contract still lists the old asset register, the old visit frequencies and the old exclusions, while the new equipment sits outside it under a defect-liability period nobody is tracking. The first breakdown after handover is when both sides discover what the contract does not cover.

Renew or re-tender the AMC on four updated foundations: the asset inventory; the task frequencies and performance duties; the exclusions, response and spares terms; and the reporting and handover records. The same clauses apply to any AMC — an expansion is simply the moment they most often go stale.

1. Update the asset inventory before anything else

The asset register is the schedule the rest of the contract refers to. An AMC "for the HVAC system" without one covers whatever each side later says it covered. After an expansion, rebuild it from the handover documents of the new works and a walk-round of the existing plant, and attach it to the contract.

For plant without records, agree a joint baseline survey before the contract starts: the state of each asset and the readings later visits will be compared with. Without a baseline, every fault in year one becomes an argument about whether it was there in year zero. The new works' handover set is the ideal starting record — the documents an EPC contractor should deliver lists it.

2. Task frequencies and performance duties

For each asset, the schedule says what is done, how often, and to which reference — the manufacturer's manual, the standard the system was designed to, or the owner's procedure. A "quarterly visit" is not a schedule, and new equipment brings its manufacturer's frequencies, often as a condition of its warranty.

Performance duties are what the contractor must measure and report at each visit — chilled-water temperatures and plant power, pump pressures, insulation and earth resistance, battery condition, fire pump tests — so that a decline shows up in the reports before it shows up as a failure. A duty to measure and report is enforceable; an undefined promise of "uptime" is not.

Then check the statutory tasks the expansion may have changed. Under the CEA (Measures relating to Safety and Electric Supply) Regulations, 2023:

• Periodic inspection and testing is carried out by the Electrical Inspector for installations above the voltage your state has notified, and self-certified by the owner at or below it, at intervals the state directs but not exceeding five years (regulation 32).
• An electrical installation of more than 250 kW connected load, including a registered factory, must have a designated Electrical Safety Officer, who inspects at intervals not exceeding one year and keeps the test reports and a register of safety recommendations (regulation 5(3)). If the expansion took you past that threshold, the AMC's records should feed the officer's — the designation itself stays with the owner.
• For apparatus above 650 V, periodic tests to the relevant standards with records of all tests, trippings, maintenance work and repairs (regulation 48), and earthing systems tested for earth resistance at least once a year, with the records kept (regulation 50(8)).
• Electrical work done under the AMC — additions, alterations, repairs — must be carried out by a licensed electrical contractor, under the direct supervision of a person holding a certificate of competency (regulation 31).

Fire systems carry their own testing and record obligations, set by the fire authority's conditions and the standards the system was designed to; a lapsed Fire NOC is often the product of an AMC that was silent about them. An expansion can also change the fire position itself — change of use and expansion is its own subject.

3. Exclusions, response and spares

The scope model. State whether the contract is comprehensive (parts within an agreed scope included) or labour-only (visits and labour, with parts billed separately), and list what "parts" excludes — typically consumables, damage from misuse or external events, and major components above an agreed value. For new assets still in their defect-liability period or warranty, say who is called for a defect: the project contractor, the manufacturer, or the AMC contractor coordinating them. The economics of each model depend on the plant's age.

Response and resolution. Define in measurable terms the hours the service levels apply, the time from a logged call to an engineer on site or on the line, the time to restore or resolve, which assets are critical and carry tighter limits, the escalation route, and the remedy when limits are repeatedly missed. "Prompt" and "best efforts" are not definitions. If the expansion added critical plant — a server room's cooling, a cleanroom, a process chiller — write its limits in.

Spares. The critical-spares list, where it is held and who owns it, how consumables are priced, and the approval route for parts above an agreed value. On older plant kept through a renovation, this clause decides the real cost of the contract.

Access. Shutdown windows, permits to work, safety rules, and what the owner provides. A larger site or new production areas change how long a visit actually takes.

4. Reporting and handover records

• A visit report for every visit, with the readings taken against the baseline
• A monthly summary — faults, response and restoration times against the agreed limits, and open items
• An annual condition review that updates the register and the baseline and flags what will need replacing
• Logbooks and statutory records kept in the owner's name and at the owner's site
• Exit terms: at the end of the contract, the updated register, logbooks, statutory files, test records and owner-funded spares are handed back

An AMC that ends with the records leaving in the contractor's van has cost the owner the next contractor's first year.

How each change after an expansion affects the AMC

Pricing the updated scope

Once the register and the schedule are fixed, the price is arithmetic: assets × visits × hours per visit × labour rate, plus consumables and manufacturer services, with spares priced separately. The MEP maintenance budget calculator sets that out so two offers can be checked on the same basis. The AMC service page describes the scope, and its buyer's guide lists what to have ready; when an AMC is worth having at all and the rest of the planning guides are on the Insights page. To have an updated scope proposed, share the asset schedule, the existing system details and the performance you need.

Sources and how to verify

• Central Electricity Authority (Measures relating to Safety and Electric Supply) Regulations, 2023 — Central Electricity Authority, notified 8 June 2023. Regulations 5(3) (Electrical Safety Officer), 31 (licensed electrical contractors), 32 (periodic inspection and testing), 48 (testing, operation and maintenance above 650 V) and 50(8) (annual earth-resistance tests), as cited above. CEA's regulations page also lists an amendment notified in 2026; check it, and any later one, before relying on a provision.
• National Building Code of India 2016 (SP 7:2016) — Bureau of Indian Standards. Parts 4, 8 and 9 frame the fire, building-services and plumbing design that maintenance schedules refer back to; how it is adopted varies by authority.

Confirm locally: the notified voltage and the periodic-inspection interval your state has directed, how your state's Electrical Inspectorate applies the Electrical Safety Officer requirement to your installation, and the fire authority's testing and renewal requirements for your building.