HDBDistribution board upgrade, 4-room flat in Bishan
An overloaded board on a single earth leakage unit, replaced and split so one fault no longer takes the whole flat dark.
- Floor area
- 1,000 sqft
- Location
- Bishan
- Completed
- 9 Jul 2026
An intermittent trip that had closed the unit twice, traced to a soaked exterior fitting and repaired the same night.

The tenant had lost power twice in a week, both times in the evening and both times back on after resetting — the pattern that makes an intermittent fault expensive to guess at and cheap to measure.
We attended the same night, isolated circuit by circuit and found earth leakage rising on the rear lighting way whenever it rained. The cause was an exterior fitting whose gland had perished and filled with water.
The fitting was replaced, the run was re-terminated and re-tested, and the readings were recorded. The unit opened as normal the next morning.
HDBAn overloaded board on a single earth leakage unit, replaced and split so one fault no longer takes the whole flat dark.
OfficeA tired office rewired around a new desk layout, with lighting set out to the desks rather than to the old grid.
CondominiumA flat roof that held water after every storm, taken back to the slab and relaid so it drains.