A burst pipe emergency is one of the most stressful plumbing situations a homeowner can face. Water spreads fast, damage builds quickly, and it is rarely obvious at first where the problem is coming from. Knowing what to do in the first few minutes can make a real difference to how much damage your property suffers.
This post covers the immediate steps to take, what causes pipes to burst, and when to call a local plumber.
What should I do first in a burst pipe emergency?
The priority is stopping the water. Find your toby valve and turn it off immediately. In most New Zealand homes, the toby is located near the front boundary of your property, often in a small plastic box at the street edge. Turning it clockwise will shut off the water supply to the house.
Once the water is off:
- Turn off your hot water cylinder at the switchboard. Running a cylinder without water supply can damage the element.
- Open a cold tap to release pressure remaining in the pipes.
- Move furniture, rugs, and electronics away from the wet area.
- Use towels or buckets to contain the water where you can.
Do not use electrical switches or appliances near the affected area until the water is fully under control.
How quickly can a burst pipe emergency cause damage?
Very quickly. Water can spread through flooring, walls, and ceiling linings within minutes. The longer a pipe runs unchecked, the more costly the repair becomes, and the greater the risk of structural damage, mould, or electrical hazards.
This is why knowing your toby location before anything goes wrong matters. If you are unsure where yours is, take a few minutes to find it now.
What causes pipes to burst?
Pipes do not usually fail without a reason. Common causes in New Zealand homes include:
- Age and corrosion. Older galvanised steel pipes deteriorate from the inside over time and are more prone to failure.
- Ground movement. Dry conditions can cause soil to shift and put pressure on underground water lines.
- Physical damage. Accidental damage during renovation work is a frequent cause of sudden pipe failure.
- Water pressure issues. Consistently high water pressure puts stress on pipe joints and fittings.
- Tree root intrusion. Roots can enter underground pipes through small cracks and cause serious damage over time.
What should I do after a burst pipe emergency?
Once the immediate situation is under control, call a qualified local plumber. A registered plumber can locate the source of the failure, assess the extent of the damage, and carry out the repair safely and to code.
Avoid attempting a DIY fix with hardware store fittings. Temporary patches can fail, and work that does not meet NZ plumbing standards can create compliance issues when you sell or insure the property.
If there is significant water damage, contact your insurer as well. Most home and contents policies cover sudden burst pipe damage, and your plumber can provide documentation to support your claim.
GoFox Plumbing operates across New Zealand with locally owned and operated franchises. You can find your nearest team on our locations page or learn more about what we cover on our plumbing services page.
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Frequently Asked Questions
What should I do when I have a burst pipe? Turn off your toby valve immediately to stop the water supply. Then turn off your hot water cylinder at the switchboard, open a cold tap to release pressure, and move belongings away from the water. Call a qualified plumber as soon as the situation is contained.
Where is the toby valve in my house? In most New Zealand properties, the toby valve sits near the front boundary, often in a small plastic box close to the street. If yours is corroded or stiff, it is worth having a plumber check it before you need it in an emergency.
Can I repair a burst pipe myself? Temporary containment is fine, but the repair itself should be done by a registered plumber. Fittings that do not meet NZ standards can cause further damage and create compliance problems.
Will my insurance cover a burst pipe? Most home and contents policies in New Zealand cover sudden burst pipe damage. You will generally need a plumber’s report to support your claim, so keep documentation of the repair.
How do I know if a pipe has burst inside a wall? Signs include unexplained damp patches on walls or ceilings, a sudden drop in water pressure, the sound of running water when all taps are off, or a significant increase in your water bill.
