Electrician in Ma On Shan

Socket or switch replacement: 30 minutes. New light fixture: 30-60 minutes. New circuit to an appliance: 2-4 hours. Consumer unit/panel upgrade: half a day to a day. EV charger install: half a day. Full rewire of a 3-bedroom home: 3-10 days. Anything involving certification adds paperwork time — ask for the certificate before final payment.

For home repairs and installations you want a licensed electrician (or your country's equivalent registered electrical worker) — they are trained and certified for installation work. Electrical engineers design systems and sign off plans for construction projects. For a house, the engineer only enters the picture on major renovations needing permit drawings.

It depends heavily on the country: some ban almost all DIY electrical work (Australia, New Zealand), others allow minor like-for-like swaps but restrict new circuits and consumer-unit work to registered electricians. Beyond legality, uncertified electrical work can void home insurance and surface as a problem when you sell. When in doubt, check your local rules before touching anything.

Rewiring is priced per circuit or per property size and is one of the most invasive electrical jobs — walls are opened, and the house may be partly without power for days. Expect a multi-day job costing two to three orders of magnitude more than a service call. Get itemised quotes (per room or per point), and ask what wall-repair 'making good' is included, as that is where quotes diverge most.

Clear access to the panel/consumer unit and the work areas, list every symptom (which outlets, when, what trips), and note the age of the property and any known previous electrical work. If you rent, get the landlord's approval first — in most countries electrical modifications are the landlord's call and often their cost.

Per-job pricing is standard: socket or switch work runs HK$300-HK$1,200, adding a socket HK$400-HK$1,500, and rewiring a flat HK$8,000-HK$30,000 depending on size and conduit work. Night and urgent calls carry a 50-100% premium.

Fixed electrical works — anything on the building's wiring — legally require an EMSD Registered Electrical Worker. Plugging in appliances or replacing a lamp is fine yourself, but socket, switch, and circuit work is registered-worker territory. Ask to see the EMSD registration card.