Leak Detection North Sydney
Hidden water leak in an apartment, office or terrace in North Sydney? 1300 FINDLEAK is a licensed leak detection specialist, not a general plumber. We find water, gas, shower, balcony and pool leaks without digging up floors or smashing tiles. Fixed pricing from $398 inc. GST, an insurance-ready report with every job, and a 24/7 emergency line.
- Rated 4.6 from 500+ Google reviews
- Free phone quote
- Same-day service often available
Water leaking right now?
- Turn off the main water valve, usually next to the water meter at the front of the property.
- Switch off power to any wet area and move valuables away from the water.
- Take photos for your insurer, then call us on 1300 346 353, 24/7.
Why leaks are hard to find in North Sydney
North Sydney is a commercial centre and suburb in North Sydney Council, about 3 km north of the Sydney CBD across the Harbour Bridge. About 9,000 people live here (2021 Census). It is known for North Sydney station, Victoria Cross Metro, North Sydney Oval, St Leonards Park and Mary MacKillop Place.
More than eight in ten homes are apartments, set among office towers with long private mains, plant rooms and fire services, where a leak in a riser, shower or balcony can travel into the floor below or the basement. Victorian terraces and cottages on the fringes have old pipes under timber floors and shared walls. The first sign is often water in a car park, a stained ceiling, damp walls or a higher water bill. We find the exact source, so only a small area needs to be opened for the repair.
Leak detection services in North Sydney

Commercial and strata leaks
Unexplained water use at a shop, office, warehouse or unit block? We test the meter, then trace private mains, fire services and plant room pipes, working around your trading hours.

Commercial and strata leaks
Unexplained water use at a shop, office, warehouse or unit block? We test the meter, then trace private mains, fire services and plant room pipes, working around your trading hours.

Slab leaks and hidden pipes
Warm tiles, a meter that never stops or a high water bill? We pinpoint leaks under concrete slabs and inside walls with thermal imaging, acoustic listening and tracer gas.
How much does leak detection cost in North Sydney?
Covers the first hour on site, inc. GST. Most single leaks are found within that hour.
For extra time, if needed. We'll tell you before going past the first hour.
Thermal imaging, acoustic and tracer gas equipment, plus an insurance-ready PDF report.
How it works
- Call or book online
Call 1300 346 353, 24/7, for a free phone quote, or book online. We'll confirm a time that suits you or your property manager. - We locate the leak
A licensed technician uses non-destructive equipment to pinpoint the source. - We mark it and explain
We show you exactly where the leak is and what's causing it. - Report and repair
You get an insurance-ready report. We can repair it, or your plumber can.
Common leak problems in North Sydney
| Sign | Likely cause | How we find it |
|---|---|---|
| Water through the ceiling or a wet wall in a high-rise apartment | Shower, bath waste, riser pipe or balcony membrane in a nearby unit | Thermal imaging, moisture mapping and flood testing |
| Water coming through the ceiling of an apartment | Shower, bath waste, balcony or supply pipe in the unit above | Thermal imaging, moisture mapping and flood testing |
| Unexplained water use at a shop, office or warehouse | Leak in a buried private water main, amenities block or fire service | Meter testing, acoustic ground microphones and tracer gas |
| Damp or mould on a shared wall in a terrace | Leaking pipe, shower or box gutter on either side of the party wall | Thermal imaging, moisture mapping and water testing |
| Stain or drip on the ceiling below a bathroom | Shower, bath or waste pipe leak, or failed waterproofing | Thermal imaging, moisture mapping and flood testing |
| Water bill suddenly higher | Leak under the slab, under the floor or in the supply line from the meter | Acoustic ground microphones and tracer gas |
High Sydney Water bill?
Sydney Water supplies North Sydney and is responsible for pipes up to your meter. Leaks on your side of the meter are the owner's responsibility. If a hidden leak has pushed up your bill, Sydney Water's hidden leak allowance can credit 50% of the water usage charge for the most affected quarter, once every five years per property. Our report shows where the leak was and what caused it, which supports your application. Download our free leak credit claim checklist.
Owners corporations, strata managers, facility managers, businesses and homeowners
We work for businesses, facility and property managers, owners corporations, homeowners, landlords and insurance loss adjusters across North Sydney and the lower north shore. We can work around your operating hours and send a clear report on the source straight to the owner, manager or insurer.
We also cover suburbs near North Sydney
North Sydney leak detection FAQs
How much does leak detection cost in North Sydney?
It starts from $398 inc. GST for the first hour on site, including thermal imaging, acoustic and tracer gas equipment and an insurance-ready PDF report. Extra time, if needed, is $168 per hour. Most single leaks are found within the first hour, and we give you a free phone quote before we book.
How do I know if I have a hidden water leak?
Turn off every tap and water-using appliance, then check your water meter. If the dial is still moving, water is escaping somewhere. Other signs include a higher Sydney Water bill, damp walls or skirting boards, a musty smell, mould or warm spots on a tiled floor.
Do you offer emergency leak detection in North Sydney?
Yes. Our emergency line runs 24/7 on 1300 346 353. Same-day appointments are often available across North Sydney, Kirribilli, Neutral Bay and the lower north shore.
Water is coming through my apartment ceiling. Who pays to find it?
It depends on where the leak starts. We test the apartment above, its shower, bath waste, balcony and the building's riser pipes, and our report shows the exact source. The owners corporation and owners use it to work out who is responsible and to support any insurance claim.
Can you work in a high-rise with the building manager?
Yes. We arrange access with the building manager and nearby unit owners, test showers, bath wastes, riser pipes and balconies, and send a clear report on the source to the owner, manager or body corporate.
Will my report help with an insurance claim or a high water bill?
Yes. Every job includes a PDF report with photos, readings and the cause of the leak. Insurers use it to assess resultant damage claims, and it supports an application to Sydney Water for help with a bill caused by a hidden leak.
Found a leak in North Sydney? We'll pinpoint it.
Free phone quote, fixed pricing from $398 inc. GST, and a 24/7 emergency line.
Trusted by Australia's largest builders, agencies and strata managers
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Call 1300 346 353 - 24/7 for emergencies, office hours 7am–11pm, 7 days
Email admin@1300findleak.com.au — work orders and purchase orders welcome
Book online or submit a work order through our portal
We're a mobile service and come to your property. Our teams are based in Parkdale and Moorooduc in Victoria, Seaforth in Sydney, and Hope Island on the Gold Coast, covering Melbourne, Geelong, the Mornington Peninsula, regional Victoria, Sydney, Wollongong, Brisbane, the Gold Coast, Tweed Heads, Casuarina, Kingscliff and Byron Bay.
1300 FINDLEAK Pty Ltd · ABN 83 640 078 397 · VIC plumbing licence 105159 · QLD licence PD26669
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I'm Oliver Schulze, the director of 1300FINDLEAK, a family-run company committed to solving all your gas and water leak problems. We pride ourselves on delivering the highest standards in customer outcomes and satisfaction, ensuring reliable and professional service every time.