Water Leak Detection on site

Water Leak Detection

A hidden water leak can cost you money long before you see damage. If your meter runs when everything is off, or your water bill rises without explanation, ALD can help find the source. We use acoustic listening equipment, correlation technology, and thermal imaging to locate leaks without damaging walls, floors, or gardens. You receive a written report showing the exact location, so your plumber can repair the right spot without unnecessary disruption.

Non-invasive detection for leaks behind tiles, underground, inside walls, and under concrete.

What Is Water Leak Detection?

Water leak detection is the process of locating the source of an undetected water loss using non-invasive technology — without opening walls, lifting floors, or digging up yards. It's the step that comes before any plumber is called, because it gives the repair team a precise location to work from.

The most common causes of hidden water leaks are corrosion in older copper pipes, root intrusion in underground lines, joint failures from ground movement, and faulty waterproofing around wet areas. A water leak detection specialist uses acoustic sensors, pressure testing, and thermal imaging to isolate the leak's location regardless of where the pipe runs.

Water Leak Detection inspection detail

Signs You May Have This Type Of Leak

  1. Your water bill has increased unexpectedly with no change in usage

  2. Your water meter is running when all taps and appliances are off

  3. There are damp or discoloured patches on walls, ceilings, or floors

  4. You can hear water running somewhere in the house when nothing is on

  5. Mould or mildew is appearing in areas that don't get wet from normal use

  6. The ground in your yard is soft, wet, or sinking in one area

  7. You notice an unusual drop in water pressure throughout the home

How We Find Your Water Leak

Every method we use is non-invasive. We do not break, drill, dig, or damage anything to find your leak. That's not a selling point — it's how we work.

Pricing Guide

$495

for a standard residential water leak detection inspection.

  • Qualified ALD specialist technician (not a subcontractor)
  • Full acoustic and/or thermal scan of the affected area
  • Written leak location report for your plumber or insurer
  • Travel to your property within our service area
  • Post-inspection call to explain findings in plain language
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FAQs

  • How long does a water leak detection inspection take?

    Most residential inspections take between 1 and 3 hours depending on property size and the complexity of your pipe system. If we're working on an older home with multiple suspected areas, allow up to half a day. Commercial and strata properties vary significantly — we'll give you an estimate during your booking call.

  • Will you need to break anything to find the leak?

    No. That's our fundamental promise. We use acoustic listening devices, thermal imaging cameras, and tracer gas systems that detect and locate the leak without physical intervention. We don't open walls, drill floors, or dig in your yard.

  • Do I need to turn my water off before you arrive?

    In most cases, no. Our acoustic equipment works best when the water is on and under pressure, as this amplifies the sound signature of the leak. In some specific test scenarios (pressure testing or tracer gas), we may need to briefly isolate a section — your technician will walk you through this before starting.

  • Can you detect leaks under concrete?

    Yes. Acoustic correlation and ground-penetrating techniques allow us to locate leaks beneath concrete slabs, driveways, and paths. This is one of the most common requests we receive and one of the most valuable — because a plumber who doesn't know exactly where the leak is will often break a large section of concrete looking for it. We can tell them within centimetres.

  • Is the detection report accepted by insurers?

    In most cases, yes. Our written report details the leak type, location, method of detection, and our findings. Many home and landlord insurers accept this as part of a leak claim. We recommend confirming with your insurer before booking if an insurance claim is your primary goal.

Related Services

  • Underground Leak Detection

    High water bill? Mysterious damp spot? Slow drip inside the walls? We use acoustic listening and tracer gas technology to locate water leaks precisely, without breaking concrete, tiles, or drywall. Full written report included, with repair guidance for your plumber.

    View Service
  • Thermal Imaging

    Infrared cameras reveal hidden moisture, heat loss, and structural issues invisible to the eye. We use this technology alongside acoustic and tracer gas methods to build a complete picture of what's happening in your property.

    View Service
  • Mystery Leak Detection

    Can't figure out where the water is coming from? That's our favourite type of case. We have the full range of tools and experience to solve detection problems that others have given up on. If there's water, we'll find it.

    View Service

What Our Clients Say

Stop The Leak. Start The Fix.

A leak you can't see is still costing you money every day. The sooner it's found, the less it costs to fix. Book your inspection and we'll give you the exact location your plumber needs — without touching a thing.