When the entire home goes dark, or half the HDB flat loses supply while the other half is fine, you are dealing with a power failure, not a simple power trip. TRUST ELECTRICIANS resolves most within 1–3 hours on site, because we start the diagnosis in the right place.
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This is the single most important question, and it saves most homeowners both time and money.
Blackouts, HDB loading trips, burnt DB boards and half-home outages our own electricians traced and fixed in HDB flats, condos, landed homes and commercial units.
No power right now? Send a photo of your DB box and tell us whether your neighbours have power.
WhatsApp Your DB PhotoThe two failure patterns need very different fixes. Tell us which one you have and we already know where to start.
Only one room or one circuit dead? See our Power Trip Electrician Singapore page, which covers the breaker-trip side of the same problem.
Call NowFrom whole-home blackouts to HDB loading trips in the evening peak, here is what Singapore homeowners and businesses say about us on Google.
This is the single most common reason an HDB flat loses all power in Singapore.
Every HDB flat has a supply rating and an approved electrical loading. When your flat was built, those limits were more than enough. Today, with multiple air-conditioning units, instant water heaters, dryers, induction cookers and home EV chargers, the same flat can easily exceed its original limit, especially in the evening peak.
Ratings are not the same for every flat: many have a 40A unit supply, and HDB is upgrading about 1,500 older blocks from 30A to 40A. Do not assume your flat has a 60A supply. Our HDB Electrical Loading Check page explains what an assessment covers.
The fault is inside your unit, and we can almost always get you back online the same day. Call us and we will tell you within 2 minutes what to switch off and when we can be there.
A few safe steps you can take right now:
For genuine power failures across Singapore, this is our standard response.
What we will not do: reset your main switch, take a call-out fee and leave. If the breaker trips again within 24 hours of our visit, we come back free of charge.
Islandwide Singapore, no travel surcharge. For landed properties and private estates, we have the same islandwide footprint and response times.
Straight answers about SP faults, HDB loading upgrades, CoC and cost.
A power trip is when a single circuit breaker (MCB or RCCB) cuts supply because of a fault on that circuit, so usually one room or one area loses power. A power failure is when the main switch trips or the entire home loses supply. See Power Trip Electrician Singapore for the single-circuit version of this problem.
Always check the corridor first. If your neighbours' lights are also off, call SP Services at 1800-778-8888, because no electrician can fix an SP network fault. If your neighbours have power, call us directly.
Yes. If the main switch trips at peak times, we measure the load as part of the diagnosis. For a standalone assessment before you add appliances, see our HDB Electrical Loading Check page.
No. In Singapore, the main breaker rating is part of your approved electrical installation. Replacing it with a higher rating without SP's written approval is unsafe, violates the Electricity Act, and will almost certainly fail any future HDB resale or insurance claim. We will always insist on the proper SP route.
Yes. For commercial premises we handle main breaker trips, distribution board failures and after-hours emergency call-outs. See our Commercial Electrician Singapore page for the full commercial scope.
Only if we replace or modify fixed wiring (cables, DB box, RCCB, etc.). A simple like-for-like MCB swap usually does not require a CoC. We will tell you upfront if a CoC is needed for your job.
Most simple HDB jobs (diagnosis plus a reset or one-part replacement) fall in the $80–$260 range. Full DB upgrades or concealed-cable fault-finding can run $850–$1,400+. See our Price List for full rates.
Call or WhatsApp us. We will tell you within 2 minutes whether to call SP or wait for us. TRUST ELECTRICIANS Singapore is licensed, LEW-endorsed and warranty-backed.
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