Burst or Leaking Pipe in Singapore: What to Do in the First 10 Minutes

A burst or leaking pipe rarely waits for a convenient time. What you do in the first few minutes decides whether you are mopping up a small puddle or repainting a ceiling next week. Here is the order to work in, whether you live in an HDB flat, a condo or a landed house.

Step 1: Stop the water

Look for the isolation valve first. In most HDB flats and condos it sits near the water meter at the entrance of the unit, or under the kitchen sink or basin cabinet. Turn it clockwise until it stops. A leaking tap or a running toilet usually has its own small valve on the pipe feeding it, so you may not need to shut off the whole flat for a single fixture.

If you rent, or you are not sure which valve controls which pipe, do not spend more than a minute or two searching. Move straight to calling a plumber instead, and keep towels down in the meantime.

Step 2: Keep everyone safe

Water and electricity do not mix. Keep children and pets out of the wet area. If water is dripping near a ceiling light, fan or socket, do not switch it on, and switch off the affected circuit at the DB box only if you can reach it while staying dry. If a water heater is leaking, cut its power first before you touch anything near it.

In a condo or landed home with a ceiling leak from the unit above, the source may not be inside your own flat at all. Note the time and location, because you will likely need to raise it with your neighbour or the management office once the immediate danger is handled.

Step 3: Limit the damage

Lift rugs, boxes and anything on the floor out of the wet area. Lay towels down, or run a mop over standing water, and place a bucket under any drip from the ceiling. Water spreads fast along HDB corridor-facing floors and skirting, and it can seep into a neighbouring unit below, so acting in the first few minutes matters more than doing a thorough clean-up later.

Step 4: Record what you see

Take clear photos or a short video of the leak itself, the wet area, and any visible damage to flooring, cabinets or the ceiling. Send these to your plumber along with your address, because it helps them bring the right parts on the first visit instead of a second trip. Keep the photos too, in case you need to raise the matter with your neighbour, your management office, or your home insurer later.

What usually causes a leaking pipe

• Worn joints, seals and rubber washers, especially in older flats
• A loose connection after other renovation or plumbing work nearby
• Corroded galvanised pipes, common in older HDB blocks
• A cracked or perished flexible hose under a sink, basin or washing machine
• A slow leak you only notice as a damp patch, peeling paint, a musty smell, or a water bill that has crept up

Should you try to fix it yourself?

Stopping the water and limiting the damage is something most people can do safely. The actual repair is not, at least not for anything beyond a washer change. Plumber's tape or epoxy putty can slow a small drip for a short while, but the joint or pipe still needs a proper fix, or the leak comes back, usually worse, at an inconvenient hour.

When to call a plumber straight away

• Water is still flowing after you have closed the valve
• Water is near sockets, switches or the DB box
• The pipe itself is cracked, split, or spraying rather than dripping
• Water is coming through a ceiling, wall or light fitting
• You cannot work out where the water is coming from

None of this needs to wait until office hours. We take plumbing calls around the clock, and a same-day visit is usually possible once you tell us your area and what you are seeing.

Need it fixed today?

Send a photo and your area on WhatsApp, and we confirm your arrival time before we come. See our plumber service, or read more guides.