Where the water is coming from
Water finds the lowest point, and a light fitting is a hole in the ceiling. In older homes it's often a slipped roof tile, a rusted gutter or a blocked valley after a heavy downpour. In double-storey homes in Point Cook, Tarneit or Werribee, it's more often an upstairs shower, bath or toilet. A ducted or bulkhead air conditioner with a blocked drain can also overflow onto the ceiling below it.
Why the light needs checking
Water inside a fitting can track along the cable to the switch or into a joint in the roof space. Even once it dries, it can leave corrosion and a fitting that's no longer safe. If the safety switch has tripped, it has done its job. Don't reset it until the leak is fixed and the circuit has been checked.
A ceiling that's bulging or sagging with water can come down without warning, so keep everyone out from under it.
Who to call
You'll usually need two trades: a plumber or roofer to fix the leak, and an electrician to check the fitting, the circuit and any wiring that got wet. If an air conditioner drain is the cause, that's one for us too. Renters should report it to the rental provider straight away. A dangerous electrical fault is an urgent repair, and the provider arranges and pays for it unless the renter caused the problem.
What you can safely do now
- Leave the light switch alone and keep people away from the wet area.
- If the board is dry and you can reach it without standing in water, switch off the lights for that area, or the main switch.
- Put a bucket or towels under the drip and move furniture and electronics away.
- If a pipe is leaking, turn off the water at the meter.
- Don't go into the roof space, and keep clear of any ceiling that's sagging.
- Keep the circuit off until it has been checked.
Services that can help
Read more in our guides
Related questions
- What should I do if a power point or appliance gets wet?Don't touch it.
- Why has the ceiling around my light gone brown?A brown ring hugging the edge of a light is usually heat or dust.
- Why can I hear crackling in my walls or ceiling?Most creaks and ticks in walls and ceilings come from timber, roofing and pipes expanding and contracting, or from animals.
- I felt a tingle from a tap or appliance. What should I do?Treat it as a warning.
Sources for this answer
1 source, with the date each was checked
- 1.Consumer Affairs Victoria: Anything on this list is legally defined as an urgent repair: burst water service blocked or broken toilet system serious roof leak gas leak dangerous electrical fault flooding or serious flood damage serious… Accessed 30 September 2026.
General information for homes in Victoria. Every installation is different, so treat this as a starting point. Where this answer refers to Victorian safety or rental rules, the sources above have the current requirements.