Circuit Breaker / DB Services
DB Box Replacement in Singapore
Full distribution board replacement starts from $450 at SG QuickFix. An old, damaged or fuse-type board is replaced with a new enclosure, MCBs for each circuit and an RCCB, then every circuit is reconnected, tested and labelled. It takes about half a day. All homes in Singapore have had to have an RCCB since 1 July 2023.
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Listed price
From $450
Task guide
When this may be needed
- The home still has an old fuse-type board.
- The board has no RCCB.
- The enclosure is cracked, rusted or heat-damaged.
- There is no space for an extra circuit.
- The board was installed decades ago with the original wiring.
What the team does
The technician surveys the existing circuits and the incoming supply, and plans the new board's layout with a breaker for each circuit and RCCB protection. With the main supply off, the old board is removed, the new enclosure is mounted, and each circuit is connected to its new breaker. Every circuit is tested, the RCCB is test-tripped, and the board is labelled before power is restored.
Included in this price
- Surveying circuits and planning the layout
- Removing the old board
- Mounting the new board with MCBs and an RCCB
- Testing, labelling and restoring power
Limits & price factors
Rewiring circuits outside the board, increasing the home's electrical loading, faults in SP Group's supply and HDB permit applications are not included.
The price starts from $450. More circuits, RCBOs instead of MCBs and repairs to circuits found faulty during testing add to the price, which is confirmed after the survey.
FAQs
Yes. From 1 July 2023, all homes must have an RCCB; the two-year grace period ended in 2025. RCCBs have been required in new installations since July 1985.
A fine of up to $5,000. Homeowners whose RCCB is faulty are not penalised, but should have it tested and replaced.
For most of the job, which takes about half a day.
Replacing the distribution board is electrical installation work, which Singapore's regulations require a licensed electrical worker to carry out.