Ceiling Water Leak in an HDB or Condo: Who to Call and What to Do

A leaking ceiling can be caused by a pipe in your own flat, the flat above, or a shared part of the building, and the right person to call is different for each. Start by making the area safe, then use the clues below to work out the likely source.

What to do in the first ten minutes

• If water is near a light, fan or the DB box, do not switch it on. Turn off that circuit at the DB box only if you can reach it while staying dry
• Stay out from under a ceiling that is sagging or bulging with water, because the board can give way
• Put a bucket under the drip and move furniture and electronics out of the way
• Take photos or a short video of the stain and the drip, with the date and time
• Note when it leaks: all the time, only after rain, or only when someone upstairs uses water

Work out where the water is coming from

The pattern of the leak tells you a lot, even before anyone opens the ceiling.

• It only leaks after rain: the cause is likely outside, such as the roof, a window frame, the outside wall or a planter box
• It leaks when the unit above uses water: for example a shower or washing machine. The cause is likely upstairs, in their pipes or bathroom waterproofing
• It drips all the time, rain or not: a pipe leak is likely. It could be in your own concealed pipes or in the unit above
• It drips from near an air-con unit or its pipe: a blocked or loose air-con drain pipe is a common cause of ceiling drips

Who to call

• The leak is from your own pipes or fixtures: call a plumber
• It is coming from the unit above: speak to your neighbour first, share your photos, and ask them to check their bathroom and pipes
• It is coming from a shared part of the building: for an HDB flat, contact your Town Council. For a condo, contact the management office
• You are not sure where it is coming from: ask a plumber or leak specialist to inspect and tell you the source

If talks with a neighbour stall, you can look at formal options such as the Community Mediation Centre. This is general guidance, not legal advice, and rules can differ by building.

What to send when you ask for help

• Photos of the stain and the drip
• What floor you live on, and whether you are on the top floor
• When the leak happens: all the time, after rain, or when upstairs uses water
• Whether anyone above is renovating
• Your address or area

What not to do

• Do not paint over the stain until the leak is fixed and the ceiling is dry. The paint will bubble and peel again
• Do not ignore a small drip. Damp can damage the ceiling board, cause mould and stain furniture
• Do not keep using a light or fan that has water on or near it

Why it is worth acting quickly

A small leak you leave for weeks can turn into a stained or sagging ceiling, peeling paint and a damp smell. Finding the source early usually means a smaller repair, and a clearer conversation with a neighbour or your building management, because your photos show when it started.

Related guides: Water under your kitchen sink · Burst or leaking pipe guide · Leaking tap guide.

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