MEP Commissioning & Handover Checklist
MEP handover can be delayed by decisions made months earlier: a shaft shared by wet and electrical services, a fire system that is not live when the first area is ready, a test certificate nobody asked for at order stage. This checklist runs from pre-commissioning to the defects period. It is an owner's and design team's aide-memoire, not a test procedure or a compliance certificate; the governing documents are the contract specification, the manufacturers' instructions and the codes below.
- NBC 2016 Part 4 · National Building Code of India — Fire and Life Safety
- CEA Regulations 2023 · CEA (Measures relating to Safety and Electric Supply) Regulations, 2023
- IS 3043 · Code of Practice for Earthing
- IS 15105 · Fixed Automatic Sprinkler Systems — Code of Practice
- IS 3844 · Internal Fire Hydrants and Hose Reels — Code of Practice
- IS 2189 · Automatic Fire Detection and Alarm System — Code of Practice
- ASHRAE Guideline 0 · The Commissioning Process (ASHRAE Guideline 0-2019)
Decide at design stage (these cannot be commissioned in)
- Ask the designers to confirm separation, access and protection for wet, electrical and data services, and record the coordinated shaft arrangement.
- Agree the handover sequence: by floor, by department or whole building. Phased handover needs the fire detection, alarm and suppression live and tested for each area before that area is occupied.
- Fix the essential-supply schedule: which loads sit on the generator and the UPS, and the changeover time they tolerate. For a hospital this is the ICU, theatres and diagnostics; for a warehouse the fire pumps, sprinkler alarm, exit lighting and the racking-area smoke control where fitted.
- Set out the bed-head, workstation or machine-side containment for power, data, gas and controls together before first fix; a service added later opens a finished wall.
- Name the commissioning authority and the witness for each test in the contract, and list the test certificates each trade must hand over, so none is being asked for on the last day.
Pre-commissioning readiness
- Inspection and test plans agreed per system, with hold points and witness requirements.
- Factory test certificates and routine test reports for transformers, panels, pumps, chillers, AHUs and fire pumps received and checked against the approved makes and ratings.
- Installation checked against the coordinated shop drawings: supports, clearances, access for maintenance, fire-stopping at every penetration.
- Pipework flushed and cleaned; ductwork cleaned and sealed; cable terminations torqued and labelled; earthing network complete.
Electrical
- Insulation resistance of cables and panels recorded before energising; continuity and polarity checked.
- Earth electrode resistance and equipotential bonding measured and recorded to IS 3043; medical locations have their own protection and bonding requirements, set at design.
- Protection relay settings checked against the approved discrimination study, with settings and test records included in the handover file.
- Confirm the applicable electrical inspection or self-certification route, notified voltage and generating-plant capacity with the competent authority. Obtain any required approval before energisation and coordinate DISCOM connection and metering separately.
- Generator load test, changeover timing and UPS autonomy witnessed, not read from a factory certificate.
HVAC and ventilation
- Testing, adjusting and balancing of air and water: measured flows against design at every terminal, with the report in the handover file.
- Pressure regimes proved for rooms that depend on them: operating theatres, isolation rooms, cleanrooms, kitchens and battery rooms. Record the differential pressure, air-change rate and filter grade actually achieved.
- Chiller, cooling-tower and AHU sequence of operation and safety interlocks demonstrated from the building management system where one exists.
- Noise and vibration checked in the occupied areas that matter: wards, offices, conference rooms.
Plumbing and public health
- Hydrostatic tests of supply pipework and water tests of drainage recorded by zone, before ceilings close.
- Potable systems flushed and disinfected, with the certificate in the file; pumps run-tested against the duty point.
- STP, WTP and rainwater systems commissioned against their design parameters, with the consent-to-operate conditions checked.
Fire protection and life safety
- Hydrant and sprinkler mains hydrostatically tested; flow and pressure at the most remote hydrant and the hydraulically most remote sprinkler area recorded (IS 3844, IS 15105).
- Fire pumps: automatic start on pressure drop, jockey, main and diesel standby sequence, and the diesel pump run on load witnessed.
- Detection and alarm: every device tested, the cause-and-effect matrix proved (dampers, lift homing, access-control release, HVAC shutdown, pressurisation fans), to IS 2189 and the approved design.
- Pressurisation of staircases and lift lobbies measured where NBC 2016 Part 4 requires it; door-opening forces checked with the fans running.
- Final Fire NOC inspection arranged with the State fire service with the installation complete and the documents listed on the Fire-NOC checklist ready.
Documents and training
- As-built drawings that match the installation, including the routes that changed on site.
- Operation and maintenance manuals per system, with the manufacturers' documents, spares lists and recommended maintenance intervals.
- All test certificates, inspection approvals, warranties and the statutory approvals indexed in one handover file, with the dates each approval expires or needs renewal.
- Operator training delivered and signed for; the first-year maintenance plan and the defects liability period start date agreed in writing.
Snagging and the defects period
- A joint snag list closed item by item, with retests where a snag affected a tested system.
- Seasonal commissioning for HVAC: a plant commissioned in winter is re-checked at the summer peak.
- A named contact and response time for defects, and a record of every call-out during the defects liability period.
Verify — Test methods, acceptance values and the inspecting authority depend on the contract specification, the State and the building type. Where a value appears above it is a pointer to the governing document, not the value to accept. Confirm every acceptance criterion with the commissioning authority named in the contract and with the Authority Having Jurisdiction before handover is signed.
Frequently asked
What is the difference between testing, commissioning and handover?
Testing proves a component or circuit does what its specification says: an insulation-resistance reading, a hydrostatic test, a damper stroke. Commissioning proves the systems work together under the conditions the building will see: the generator takes the essential load within its changeover time, the pressurisation fan holds the staircase pressure with doors opening, the sprinkler pump starts on a pressure drop. Handover is the transfer of a commissioned installation with its documents, approvals and training to the people who will run it. A building can pass every test and still fail commissioning.
Which approvals have to be in place before an MEP installation can be handed over in India?
Build a project-specific approval register with the design team. Check electrical inspection or self-certification against the notified voltage, generating capacity and competent authority; check connection and metering with the DISCOM. Fire approvals, occupancy conditions and pollution-control consents depend on the building, activity and jurisdiction. The checklist does not establish that any particular approval applies or has been obtained.
Why do hospital and warehouse MEP handovers slip for different reasons?
Hospital teams may need to coordinate clinical-area pressure regimes, essential power and phased occupancy. Warehouse teams need the storage classification and fire-system design coordinated with the operating layout. Each project needs its own commissioning sequence, witness plan and approval schedule; an operating facility also needs an agreed shutdown plan.
What should the handover file contain?
As-built drawings that match what was installed, operation and maintenance manuals per system, the test and commissioning records with the witnessing signatures, the statutory approvals and their renewal dates, equipment warranties and spares lists, and the training record. If a question about the building cannot be answered from the file, the file is incomplete.
Want this checked against your drawings?
We'll review your scheme against the governing code and own the statutory approvals — so compliance is designed in, not retrofitted. The other checklists, clearance guides and specification libraries are on the architects' hub.