Contractor Licence: 455945C (Prevail Plumbing Group Pty Ltd) · Licence: 305276C (Joel Polifroni)

Leak detection · Sydney

Leak detection Sydney

Leak detection for hidden water loss, damp areas, moving meters, low pressure, hot water leaks and drainage leaks that need CCTV investigation.

Once the leak is traced, the repair is explained clearly so the affected pipe, valve, fixture or drain section can be dealt with properly.

Prevail Plumbing controlling a failed water meter leak before repair

Warning signs

Signs of a hidden leak

  • A rising water bill without an obvious change in use
  • The water meter moving while all taps and fixtures are off
  • Damp walls, floors, ceilings or skirting boards
  • Low water pressure or a pressure drop on one part of the property
  • Mould, musty smells or recurring damp patches
  • Hot water running out or cycling unexpectedly because of a leak
  • Wet ground, paving movement or unusually green patches outside
  • Drainage smells, damp ground or repeated drainage issues that need CCTV inspection

How leaks are traced

From symptoms to targeted repair

  1. 01

    Confirm the symptoms

    We start with what the property is showing — bills, meter movement, pressure loss, damp areas or drainage symptoms — before deciding how to investigate.

  2. 02

    Narrow down the line

    Water services, hot water systems and fixture lines are isolated and checked so the search is focused on the most likely section.

  3. 03

    Inspect drainage where relevant

    Where the suspected leak is drainage-related, CCTV inspection can be used to check the inside of the drain and identify visible defects.

  4. 04

    Repair once found

    Once the leak is identified, the repair can be explained and completed as a targeted plumbing repair rather than guesswork.

Water, hot water and drainage

Leaks are not all found the same way

A pressurised water leak, a hot water system leak and a leaking drain each need a different investigation path. Drainage concerns are assessed with CCTV where internal pipe condition needs to be viewed.

Drain camera screen used to inspect drainage where a leak or defect is suspected

What we cover

Leak investigation and repair once found

  • Cold water service leaks, including underground and external pipework
  • Hot water system leaks at the tank, valves, pipework or connections
  • Internal leaks behind walls, under floors or in ceiling spaces
  • Drainage leaks investigated with CCTV where the issue is inside the sewer or stormwater line
  • Common-property and strata leak investigations
  • Written reports for insurance or strata purposes where requested by the owner

Frequently asked questions

Leak detection questions

How do I know if I have a hidden leak?

Common signs include a rising water bill, a meter that moves when all taps are off, damp walls or floors, low pressure, mould or wet ground outside.

Can you trace leaks in hot water systems?

Yes. Hot water leaks can come from the tank, valves, pipework or connections. The system is assessed so repair or replacement options can be explained clearly.

How are drainage leaks checked?

Drainage leaks are investigated differently from pressurised water leaks. Where drainage is suspected, CCTV inspection can be used to view the pipe internally and identify visible defects.

Can you provide a written report?

Where the owner requests it, written findings can be prepared for insurance, strata or property management purposes after the investigation.

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