A Burst Pipe? Act Fast: Immediate Steps to Limit Water Damage

A burst pipe can flood a home in minutes. The good news is the first ten minutes matter more than the repair — if you act fast you can turn a costly flood into a contained leak. Here's exactly what to do, in order, if a pipe bursts in your home.

1. Shut off the water — now, not later

Your very first job is to stop the flow. Find the main water shut-off valve — usually near the water meter, on the side of the house, or in a basement or garage — and turn it clockwise to close. If the burst is only under one sink or toilet, the fixture's own isolation valve may be enough and lets you keep water on elsewhere. If you can't find the main tap in a hurry, go to the water meter out front and shut it there.

2. Turn off the power that could be at risk

If water is near electricals — power points, the switchboard, light fittings — turn off the circuit or the whole switchboard. This is the difference between a wet floor and a safety hazard. If you're not sure, or the switchboard itself is wet, don't go near it and call an emergency electrician as well as a plumber.

3. Contain and lift valuables

Once the water's off, move furniture and anything you don't want ruined up out of the floor, and divert any pooling water with towels or a mop. Open the isolation valves to an outside tap so residual pressure in the damaged line can drain. Start any clean-up right away — water soaks into carpet, plaster and timber fast, and the longer it sits, the greater the chance of long-term damage.

4. Find the burst and contain it

Trace the water back to its source — a split pipe, a failed joint, a water heater connection. Often you can't see the burst itself (many are in walls or under floors), but the location of the leak plus a damp patch or a wet wall gives a plumber a strong head start. Don't attempt to solder or cut pipes yourself unless you're qualified.

5. Call a plumber (and your insurer)

Get a licensed plumber in to make the pipe safe and repair the burst. In a genuine emergency when water won't stop, an after-hours plumber is worth it — the cost of a callout is small next to the cost of a flood. If the damage is significant, ring your insurer early and take photos of the leak and the affected areas while things are still wet as evidence.

Making sure it doesn't happen again

Bursts are often preventable. Corroded or ageing pipework is the most common culprit, along with high water pressure, and poor joints. After a burst, a plumber can test the pressure, check the condition of the remaining pipework and tell you whether a patch repair is enough or whether it's time to consider a full repipe in an older home.