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What to do when a pipe bursts or you have a water leak

plumber fixing bathroom tap
RACV

November 15, 2024

Leaking taps are a common household problem that can waste water, increase your utility bills, and lead to more significant problems that cause major damage to your home. Here is a step-by-step guide to dealing with a leaky tap, and who to call in an emergency.

The most common cause of a leaking tap is a worn-out or damaged rubber washer. In simple cases you may be able to repair and replace this yourself but without the proper knowledge and tools, or when dealing with old parts, things can go wrong quickly.

If you have a persistent leak - or you are in any way unsure about what to do - then it’s important to call a professional and licensed plumber. In 2023, RACV Trades attended emergency callouts for 6,377 burst water pipes, along with 5,525 broken or leaking taps.

Water damage from flexi hose leaks and burst pipes can cause significant damage to your home, so it's critical to take a proactive approach to home maintenance. Follow our expert guide to protecting your home by preventing water damage. 

More: The most common home emergencies tradies get called to


Be prepared for any emergency in the home

Whether or not you’re proficient at DIY repairs, such as fixing a leaking tap, it’s important to be prepared for serious situations that demand immediate attention and can cause significant damage to your home.

The team at RACV Trades recommends:

  • Knowing where your water mains are and how to turn them off.
  • Knowing where your switchboard is and how to isolate power if required.
  • Having an RACV Emergency Home Assist plan or the contact details of an emergency plumber in an easy-to-access place.

RACV Home Insurance* can help cover a range of events including damage from water leaks caused by a faulty washing machine or leaking pipe. For more information on the types of events covered, read the Product Disclosure Statement.

RACV tradie arriving at home

Always have the contact details handy for RACV Emergency Home Assist or an emergency plumber.

What to do in an emergency with a burst or leaking water pipe

Turn off the water mains

For serious water leaks, the first step in an emergency is to turn off the water mains to limit further damage. This will stop the flow of water into the house and prevent any further water coming into the pipes.

Your water main is typically located near your water meter which is outside the front of your house, either inside your fence or along the verge, in a covered underground box. For apartments, your water mains can be found under either your kitchen or laundry sink.

To turn your water mains off you simply need to remove the lid of the water mains box and locate the valve. (For apartments, your mains valve should be uncovered and attached to your water pipe.)

When on, the valve is pointing in the direction of the water flow (towards your home). Turn the valve clockwise 90 degrees to turn off the water mains. You’ll know your water mains are off if the meter dials have stopped spinning.

If you cannot locate your water mains, your neighbours may be able to help, or your emergency plumber will be able to identify it once they arrive.

Turn off the electrical mains

If there is any chance of water coming into contact with electrical wiring like lights or power points, or if you are unsure, it is also a good idea to switch off your electrical mains.

If your home is flooded, or if the water damage is severe, there is a risk that your electrical wiring or sockets may be affected.

To switch off your electrical mains you first need to locate the main switchboard enclosure. The location of your main switchboard is usually in the front entry, hallway entry or externally located on the side of your residence.

To isolate all power, identify the isolator or circuit breaker (labelled main switch) and, if safe to do so, switch off.

All power and lighting circuits should be isolated once the main switch is off. Leave power isolated until a licensed plumber attends and can assess the extent of the damage.

Identify the source of the water leak

Once the immediate risk posed by a serious water leak has been dealt with, you can focus on identifying the source of the leak.

While this may seem simple, locating a burst or leaking pipe can be quite tricky, especially if there is water leaking from the ceiling or the walls.

Pipes are often hidden and water can travel unseen for some distance before it leaks out, but a good starting point is the wettest areas. You can then work back, and up, towards walls which have taps or appliances that use water like dishwashers or washing machines.

For double-storey homes, consider where upstairs bathrooms are and if water could be coming from them.

gloved hands using spanner to tighten sink pipe

Some things you can do yourself, but home emergencies are not DIY.

Use buckets and towels to prevent further damage

To minimise the water damage caused to your home, place buckets and towels around the affected area, keeping it as dry as possible. This will help prevent expensive repair costs down the track.

Drain water from your pipes

Once your water mains have been turned off, you then need to drain the water currently in your pipes – this will also release the water pressure that is already built up in the pipes.

To drain the pipes, simply run your hot and cold taps until the flow of water has stopped.

Call a licensed plumber

Now that you have prevented any further water damage or hazardous situations, it’s time to call a licensed emergency plumber.

Choosing an emergency plumber can be overwhelming. The urgency of arranging a plumber leads many people to make a hasty decision, which can end up adding to their problem. If the repair work isn’t performed correctly, small issues could turn into major problems and expensive repairs down the track.

With so many tradespeople and companies to choose from, it can be hard to know if you have found a reputable plumber

RACV plumber talking to homeowner about kitchen tap

A licensed emergency plumber will be best placed to handle a burst or leaking pipe at your home.

Open doors and windows

A burst pipe can lead to a lot of water damage in your home and expensive repair costs.

To minimise the water damage caused to your home, try to open as many windows and doors around the affected area as possible to help air circulation.

While cleaning up the water you can see is important, sometimes secondary damage such as mould, corrosion and even structural damage can be worse than the initial leak. Drying out the water you can’t see in the carpet pad, plasterboard or even insulation in your walls will help prevent this.

If your water damage is severe, a dehumidifier can remove the excess moisture from the air. A commercial air mover is also designed to bring moisture out of the floor, carpets, walls and furniture.


RACV Emergency Home Assist

If you have a burst or leaking pipe at home and need assistance, RACV Emergency Home Assist (call 13 46 63) can help take the stress out of your home emergency by connecting you with a fully accredited and trained RACV plumber, who will arrive on your doorstep usually within the hour.

RACV’s fully qualified emergency plumbers are available 24/7 with no out-of-hours surcharge.

Your emergency RACV plumber can help you identify the extent of the damage and recommend the best plan of action for your home. They will then either fix the problem on the spot or make temporary repairs to make sure your home is safe and secure, reducing the risk of further damage.

RACV also offers an Emergency Home Assist plan, which for a yearly subscription includes unlimited emergency callouts, with no charge for RACV to attend the emergency (see terms and conditions).

RACV Trades can help you get your home in order

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RACV Trades is a trading name of RACV's trade partner, Club Home Response Pty Ltd (Victorian registered domestic building practitioner number CDB-U 100178). All works are performed or arranged by Club Home Response Pty Ltd. trading as RACV Trades.

*The information provided is general advice only. Before making any decisions please consider your own circumstances and the Product Disclosure Statement and Target Market Determinations. For copies, visit racv.com.au. As distributor, RACV Insurance Services Pty Ltd AFS Licence No. 230039 receives commission for each policy sold or renewed. Product(s) issued by Insurance Manufacturers of Australia Pty Ltd ABN 93 004 208 084 AFS Licence No. 227678.