Water Leak Detection & Repairs Sydney

A hidden leak can quietly wreck your home and blow out your water bill. We find leaks fast with non-invasive equipment and fix them properly - walls, roofs, pipes and slabs.

A hidden water leak is often signalled by a rising water bill, damp patches, mould, or the sound of running water when all taps are off. Licensed plumbers use non-invasive tools - acoustic listening, thermal imaging and pressure testing - to locate the leak without tearing up your home, then repair it. Jetstar detects and repairs water leaks across Sydney 24/7.

Find the leak first, then fix it right

Not every leak is obvious. Many happen behind walls, under floors or beneath the concrete slab, causing damage for months before you spot them. The trick is finding the exact spot before anyone starts cutting into your home.

We use specialised leak detection equipment to pinpoint the source with minimal disruption, then carry out a lasting repair. Catching a leak early protects your home, your health and your hip pocket.

Water leak services across Sydney

From a dripping pipe to a burst main or a leaking roof, we track down the source and repair it.

Non-Invasive Leak Detection

Acoustic listening, thermal imaging and pressure testing locate the leak without unnecessary damage to your home.

Burst & Leaking Pipes

Fast repair of burst, cracked or corroded pipes — copper, PVC and more — before the damage spreads.

Roof & Gutter Leaks

We find and fix roof leaks, flashing failures and blocked gutters that let water into your home.

Slab & Underground Leaks

Leaks under the concrete slab or in the yard, located precisely and repaired with minimal digging.

Fixture & Toilet Leaks

Silent toilet leaks and dripping fixtures waste litres a day – we find and fix them fast.

Water Bill Investigations

Unexplained high water bill? We hunt down the cause and give you a report you can act on.

Signs you have a hidden water leak

Hidden leaks show subtle clues before the damage appears. Call a plumber if you notice:

A water bill that jumps for no clear reason
Damp patches, bubbling paint or warped skirting
Mould or a musty smell in walls, floors or ceilings
The sound of running water when everything is off
Warm spots on the floor (a hot water line leak)
Cracked tiles or a constantly wet patch in the yard

The Jetstar leak detection process

We locate before we cut – so repairs are precise and disruption is kept low.

Leak detection methods we use

The right tool depends on where the leak is hiding. Here’s what we reach for.

Method	What it finds	Why it helps
Acoustic listening	Pressurised pipe leaks in walls and slabs	Hears the leak so we don’t dig blind
Thermal imaging	Hot and cold water leaks behind surfaces	Sees temperature changes through walls
Pressure testing	Whether a pipe run is leaking at all	Confirms the problem and narrows the zone
Moisture metering	Damp behind walls and under floors	Maps how far the water has spread

Combining methods means we locate the leak accurately and repair only what's needed.

How much does leak detection and repair cost?

Leak detection is usually a set fee for the investigation, with the repair quoted once we’ve found the cause and location. Finding it early almost always costs far less than repairing water damage later.

What affects the price

How accessible the leak is (wall, slab, roof, yard)
The detection methods needed to locate it
The type and size of pipe to be repaired
Whether excavation or slab access is required
The extent of any water damage already caused
After-hours attendance for urgent bursts

Guide only - not a quote. You'll get a fixed price before repairs begin, and there's no call-out fee.

Every job, quoted upfront

You get a clear, fixed price before we start any work – no hidden surprises and no charge just to come out and take a look.

Why Sydney trusts Jetstar to find leaks

Two decades of tracking down the leaks other plumbers miss — accurately, and with as little mess as possible.

Non-invasive first

We locate the leak before cutting anything, so repairs are targeted and your home stays intact.

24/7 burst response

A burst pipe won’t wait. We’re available around the clock to stop the flood and repair the damage.

Licensed & guaranteed

Licensed (166837C), insured and backed by our satisfaction guarantee on every repair.

20 +

Years serving Sydney

24 /7

Emergency, 7 days

$ 0

Call-out fee

100 %

Satisfaction guarantee

Leak detection plumbers across Sydney

We find and repair water leaks right across the Sydney metro area, from beachside homes to inner-city apartments.

Sydney CBD
Inner West
Eastern Suburbs
North Shore
Northern Beaches
Hills District
Sutherland Shire
Western Sydney
Parramatta
Ryde
Blacktown
Penrith

Frequently asked questions

How do you find a leak without breaking walls?

We use non-invasive tools – acoustic listening rods, thermal imaging cameras and pressure testing – to pinpoint the leak first. That means we only open up the exact spot that needs repair, not the whole wall.

My water bill is really high - is it a leak?

Very likely. A silent leak in a pipe, toilet or hot water line can waste hundreds of litres. A quick way to check: turn off all water and watch your meter – if it keeps moving, you have a leak. We can find it for you.

Can a hidden leak damage my house?

Yes. Left alone, leaks cause rot, mould, damaged ceilings and cracked slabs – repairs that cost far more than fixing the leak early. That’s why fast detection pays off.

Do you repair roof leaks as well as pipe leaks?

We do. Our roof plumbers find and fix roof leaks, flashing problems and blocked gutters that let water into your home, on top of internal and underground pipe leaks.

Is the water leak my responsibility or Sydney Water's?

Leaks on your property’s pipes are generally your responsibility, while the water main is managed by Sydney Water. We’ll help you work out which side the leak is on.

Do you offer emergency leak repairs?

Yes – burst pipes and major leaks are handled 24/7. Call 02 9073 4415 and we’ll get to you fast to stop the water and repair the damage.

Still have a question? For leaks on the network side of your property, see Sydney Water.