Water Leaking or Dripping from Your HDB Ceiling? What to Do, Who Pays and How to Repair
If water is dripping from your ceiling: switch off power to any light or fan near the leak, catch the water, photograph everything, and tell the flat upstairs. Most ceiling leaks in HDB flats come from the bathroom or kitchen above, through worn waterproofing or leaking pipes. For inter-floor leaks, HDB has a process to investigate, and repair costs are generally shared between the upper and lower flat owners. Check HDB’s latest guidance. Only repaint once the leak is fixed and the ceiling is dry, using a stain-blocking primer.
What to do right now
- Switch off electricity to lights, fans or sockets near the wet area. Water and wiring don’t mix.
- Catch the drips with a pail and protect furniture with plastic sheets.
- Take photos and videos with dates. You’ll need them for the neighbour, HDB or condo management, and insurance.
- Speak to the neighbour upstairs. Ask whether they’ve noticed leaks or recently renovated their bathroom or kitchen.
- Report it. HDB flats: contact HDB, or your Town Council if the source may be common property such as a roof or common pipe. Condos: contact the management office (MCST).
Common causes of ceiling leaks in Singapore flats
| What you see | Likely cause |
|---|---|
| Brown ring-shaped stain below a bathroom | Failed waterproofing or a cracked floor trap upstairs |
| Drips right after the upstairs shower | Shower area waterproofing or grout failure upstairs |
| Constant dripping, even at night | A leaking water supply pipe |
| Wet patch near the aircon | Choked or leaking aircon drainage |
| Leak only during heavy rain | Roof, window or external wall seepage (top floor and corner units) |
| Bubbling, peeling paint and white powder | Long-term dampness and efflorescence |
Who pays for HDB ceiling leaks?
HDB has a specific process for inter-floor ceiling leaks. In general:
- Within the defects liability period after collecting keys for a new flat, report defects to HDB.
- After that, HDB’s guidance for inter-floor ceiling leaks generally has the upper and lower flat owners share the repair cost, with HDB helping to investigate and coordinate.
- If the leak comes from common property such as the roof or common pipes, the Town Council is responsible.
- In condos, the MCST helps determine whether the source is within a unit or common property.
Rules and processes can change. Check the latest information on the HDB website or with your Town Council or MCST before agreeing to costs.
How the leak is usually fixed
- Waterproofing upstairs: often by injecting sealant into the ceiling slab, or redoing the bathroom floor waterproofing above
- Pipe repair: replacing the leaking section
- Aircon: clearing or replacing drainage
- External seepage: sealing windows or treating external walls
Repairing and repainting your ceiling
Don’t repaint immediately. Water stains bleed through normal paint, and repainting a wet ceiling just traps moisture.
- Confirm the leak has stopped, ideally over a week or two of normal use upstairs.
- Let the ceiling dry fully. A fan or dehumidifier helps.
- Scrape off loose or bubbled paint and remove any white salt deposits.
- Treat mould with an anti-fungal wash if there’s any.
- Apply a stain-blocking primer or sealer.
- Repaint the whole ceiling panel, not just the stain, so it blends. Use anti-mould ceiling paint in bathrooms and kitchens.
A ceiling stain repair and repaint for one room typically costs $180 to $450. See wall and ceiling repair.
Leak fixed and ready to repaint? We’ll match you with painters who handle stain sealing and ceiling repairs properly. Get free quotes.
FAQ
Why is water dripping from my ceiling when it’s not raining?
Usually a leak from the bathroom, kitchen or water pipes in the flat above, or aircon drainage. Rain-related leaks mostly affect top-floor units.
Can I just paint over a ceiling water stain?
No. Fix the leak, let it dry, and use a stain-blocking primer first. Otherwise the stain comes back.
How long does it take for a ceiling to dry after a leak?
Anywhere from a few days to a few weeks, depending on how wet it got. Use fans or a dehumidifier and wait until the stain stops spreading.
Is a leaking ceiling dangerous?
It can be if water reaches light fittings or wiring, or if a false ceiling becomes waterlogged and sags. Switch off power to the area and get it checked.
