Electrical & M&E Defects at Handover
Sockets, the distribution board, ventilation and the water heater — the mechanical and electrical defects you can only catch by testing, plus the safety rules that come built into your home.
Mechanical and electrical defects are the quiet danger of a handover. A cracked tile announces itself; a socket wired without an earth, or a distribution board whose safety trip does not trip, looks exactly like a working one. The only way to find M&E defects is to test them — and the only safe time to get them fixed for free is now, inside your liability period.
The short version
- M&E defects are invisible — a dead or mis-wired socket looks identical to a good one.
- Test every socket, light point and the distribution board’s safety trip.
- By law, electrical wiring work must be done by an EMA Licensed Electrical Worker and certified safe before supply is turned on.
- A Home Fire Alarm Device is mandatory in new homes (plans submitted on or after 1 June 2018).
- Report M&E defects within your defects liability period to get them fixed at no cost.
Why M&E defects are the ones you must test
Finishes you can judge by eye. M&E you cannot. A power point can be live but un-earthed, reverse-wired, or loose behind the plate; a lighting circuit can work on one switch and fail on another; a residual-current device (RCCB) — the thing that cuts power in a fault and can save a life — can be installed and still not trip. None of that shows on a walkthrough. You have to operate every item.
The electrical checks
- Every power socket is live — test with a charger or socket tester in each outletHigh
- Sockets are correctly earthed and wired (a tester shows reverse polarity / missing earth)High
- Distribution board is clearly labelled and the RCCB/safety trip actually trips when testedHigh
- No scorching, buzzing, warm plates or loose, lifting socket and switch facesHigh
- Every lighting point works on every switch; two-way switches operate from both endsMed
- Aircon isolator/point present and powered where the unit will be installedLow
Who can legally touch the wiring
This matters both for the original build and any fix. Under EMA’s rules, electrical work that involves wiring must be carried out by a Licensed Electrical Worker (LEW) of the appropriate class, and the works must be tested and certified safe by the LEW before electricity supply is turned on. Everyday swaps like changing a bulb do not need an LEW — but installing a water heater or anything that involves wiring works does.1
Ventilation, water heater & wet M&E
- Exhaust / ventilation fans in bathrooms run and actually pull air — hold a tissue to the grille.
- Water heater (where provided) powers on, heats, and shows no leak at its connections; its wiring is LEW-installed.
- Kitchen and yard points for the hood, hob and appliances are present, powered and positioned per your plan.
- No tripping under load — switch on several points together and confirm the board holds. 1
Fire-safety basics that come with the home
Some safety features are not optional extras — they are required. SCDF makes a Home Fire Alarm Device (HFAD), such as a smoke detector, mandatory for new residential premises (for plans submitted on or after 1 June 2018). Confirm yours is fitted and check the recommended long-life battery.2
SCDF also advises keeping escape routes clear: a minimum 1.2 m clear passage along the common corridor, and no storage of objects at staircases and landings. It is worth checking your corridor and staircase at handover — a blocked common route is a defect of the development, not just an inconvenience.3
Found an M&E defect? Report it
For a new HDB flat, report electrical and M&E faults to the Building Service Centre within your 1-year Defects Liability Period — HDB conducts a joint inspection and arranges rectification at no cost. For a condo or EC, notify the developer in writing within the 12-month period. Either way, photograph the fault and note the exact location, and re-test once it is rectified.4
Frequently asked
Who is allowed to do electrical wiring work in my home?
Under EMA’s rules, electrical work involving wiring must be carried out by a Licensed Electrical Worker (LEW) of the appropriate class, and the works must be tested and certified safe by the LEW before electricity supply is turned on. Simple tasks like changing a bulb do not need an LEW, but anything involving wiring — including installing a water heater — does.
How do I check power sockets at handover?
Test every socket with a charger or, better, a plug-in socket tester that reveals missing earth, reverse polarity and open neutrals. Also confirm the distribution board is labelled and that its RCCB/safety trip actually trips when tested, and look for any scorching, warmth or loose plates.
Is a smoke detector required in a new Singapore home?
Yes. SCDF makes a Home Fire Alarm Device (such as a smoke detector) mandatory for new residential premises with plans submitted on or after 1 June 2018. Confirm it is installed at handover.
What M&E items should a defect inspection cover?
Power sockets (live, earthed, correctly wired), the distribution board and its safety trip, all lighting points and switches, bathroom ventilation/exhaust fans, the water heater, and that the board holds under combined load — plus fire-safety basics like the HFAD and clear escape routes.
Sources & references
Every link below was checked against the live source. Regulations change — confirm specifics for your project before relying on them.
- 1Engaging Licensed Electrical WorkersEnergy Market Authority (EMA) — Electrical wiring work must be done by a Licensed Electrical Worker and tested/certified safe before supply is turned on; water-heater installation needs an LEW where wiring is involved.
- 2Home Fire Alarm Device (HFAD)Singapore Civil Defence Force (SCDF) — HFAD mandatory for new residential premises (plans submitted on or after 1 June 2018); smoke detector with long-life battery recommended.
- 3Fire Safety Guidelines for Residential EstatesSingapore Civil Defence Force (SCDF) — Keep escape routes clear — minimum 1.2 m clear passage along the common corridor; no storage at staircases and landings.
- 4Rectification of Defects in New FlatsHDB — Report M&E and other defects to the Building Service Centre within the 1-year Defects Liability Period; HDB conducts a joint inspection and arranges rectification.
