What to Do When a Pipe Bursts at Night in Adelaide

Step-by-Step: What to Do When a Pipe Bursts

Stay calm. A burst pipe feels catastrophic in the moment, but the steps to contain the damage are straightforward. Work through them in order.

1. Turn off the main water supply immediately. Your main shutoff valve is at your water meter, usually near the front boundary of the property. Turn it clockwise to close. If it's a lever valve, turn it 90 degrees until it stops. This stops the flow of water into your home and limits damage.
2. Turn off your hot water system. Electric systems: switch off at the circuit breaker. Gas systems: turn the gas valve to off. Continuing to heat water with no supply can damage your hot water unit.
3. Open taps at the lowest point of your home. This drains residual water from the pipes and relieves pressure, reducing further leakage from the burst point.
4. Move belongings and furniture away from the water. If safe to do so, move valuables, electronics, rugs, and furniture out of the affected area. Even a small amount of standing water can damage timber floors and cause mould within 24–48 hours.
5. Document everything. Take photos and videos of the damage for your insurance claim before attempting any clean-up. Make a note of when you discovered the leak.
6. Call an emergency plumber. Once the water is off and the immediate area is secured, call a licensed 24/7 emergency plumber. Describe the location of the burst and the extent of visible damage so the plumber can come prepared.

What Causes Pipes to Burst in Adelaide Homes?

Understanding the cause helps your plumber respond faster and gives you a better picture of what the repair involves. The most common causes of burst pipes in Adelaide properties include:

• Ageing pipes. Galvanised steel pipes (common in pre-1970s Adelaide homes) corrode from the inside over decades, eventually splitting under normal water pressure. Copper pipes in homes from the 1970s–90s can develop pinhole leaks that become full bursts.
• High water pressure. Adelaide's water pressure can vary significantly by suburb and elevation. Consistently high pressure puts stress on pipe joints and fittings — the weakest points in the system.
• Tree root intrusion. Adelaide's large native street trees have aggressive root systems that can find and infiltrate hairline cracks in pipes, eventually causing them to fracture.
• Accidental damage during renovations. A nail through a wall, a drill bit into a hidden pipe, or disruption during earthworks are a common cause of sudden pipe failures.
• Extreme temperature changes. While Adelaide doesn't experience the freezing temperatures that cause pipes to burst in colder climates, rapid temperature swings can stress older pipe materials and fittings.

What Happens When Our Plumber Arrives

Our emergency plumbers come prepared for burst pipe callouts with the equipment needed to assess and repair most pipe failures on the first visit. Here's what to expect:

• The plumber will inspect the burst location and assess the full extent of damage, including checking for water infiltration into walls or flooring
• They'll confirm the water supply is isolated and identify any secondary shutoffs that can restore partial water access to unaffected parts of the home
• A repair approach will be recommended — this might be a section replacement, a pipe clamp repair for a temporary fix, or in older homes, a recommendation to repipe that section entirely
• The repaired section is pressure-tested before the water supply is restored
• You'll receive a written report noting the cause, repair carried out, and any follow-up recommendations

Preventing Burst Pipes in Adelaide Homes

While not all pipe failures are predictable, several maintenance steps significantly reduce the risk:

• Have a plumber assess your water pressure — a pressure reducing valve (PRV) can be installed if it's running high
• If your home was built before 1980 and has never had its pipes assessed, book a condition inspection — galvanised pipe failures can often be anticipated
• Keep an eye on your SA Water bills — a sudden increase without a change in usage can indicate a slow pipe leak before it becomes a burst
• Locate and test your main shutoff valve annually to ensure it operates correctly when you need it