The simple locate: $200–$400
Short accessible runs: confirmed, pinpointed, marked without ceremony.
Leaks Found, Not Guessed
Find That Leak
Fast Across
Kellyville
The water bill knows something you don’t. Somewhere under a slab or behind a wall in Kellyville, a pipe is quietly feeding the ground, and finding it with instruments instead of a jackhammer is the difference between lifting three tiles and gutting a bathroom. We locate to centimetres, then repair through one deliberate hole.
- Licence 368473C, fully insured
- Acoustic, thermal & pressure instruments
- Found and fixed by the same crew
How You Find A Leak Without Demolition In Kellyville
A hidden leak cannot help giving itself away three times over. Escaping water under pressure sings at frequencies acoustic gear can chase along a pipe run; it changes the temperature of whatever it soaks, which thermal imaging paints in false colour through wall sheeting and slab surfaces; and it bleeds pressure from whichever isolated section of pipework it lives on, which a gauge catches cold. One signal suggests; three signals triangulate.
That triangulation is what you are actually buying. Where the readings converge, we mark the floor, and in Kellyville’s renovated homes, where pipework wanders in ways no council plan ever recorded, that mark routinely sits metres from where anyone would have started digging on instinct. The difference between those two points is the difference between lifting three tiles and re-doing a bathroom.
The clues that show up in the building first
Many 1990s and 2000s homes run PVC that sags or cracks at the joints as the Hills’ reactive clay soil shifts through wet and dry spells.
Long-running leaks in reactive soil often announce themselves through the structure rather than the plumbing: a door that has started binding, a hairline crack above a window, floor tiles lifting in one corner.
Those are worth mentioning when you call. A pattern of movement in one part of the house tells us where to look before a single instrument comes out of the van.
Whose leak is it in an apartment?
New duplexes and townhouses squeezed onto older blocks share drainage runs, so one blockage needs a camera and proper access to clear it right.
The technical question and the financial question have different answers, and both need settling. Pipework serving only your lot is yours; risers, mains and common-property lines belong to the owners corporation.
A leak detection report that names the line, the lot and the direction of travel is what turns a dispute into a decision. That is what we write, because a description of where the water appeared settles nothing.
Retaining walls, terraces and the services behind them
When a Hills downpour hits, Kellyville’s stormwater pits and downpipes overload fast, backing runoff up around homes and driveways.
Sloping blocks are full of retaining structures, and pipework often runs behind or beneath them because there was nowhere else to put it. A leak in that position saturates backfill, and saturated backfill is what makes retaining walls move.
Water showing at the base of a wall is worth treating as urgent even when the volume looks trivial. The plumbing repair is small compared with what the wall costs.
The leak that is a drain, not a water pipe
Not every escape of water is under pressure. A cracked drain leaks into the ground continuously without affecting the meter, without a pressure drop, and often without a single symptom inside the house.
The distinction decides the method. Pressure leaks are found with acoustics and the meter; drain faults are found with a camera and, where needed, a smoke or dye test.
Ground that moves, and the leaks it starts
Reactive ground swells and shrinks with moisture, and it does not do it evenly across a property. Anything rigid crossing that ground is worked at its weakest point until something opens, usually a joint, usually slowly.
It is why leaks in this kind of country tend to appear after the seasons turn rather than during a single event, and why the same property can produce a second one years later a few metres from the first.
What it costs in Kellyville
The standard job, $300–$500
First hour with the full kit, pressure isolation, thermal, acoustic, on a typical concealed leak.
The long trace, $100–$250/hr after
Extended runs, awkward access and multi-leak eliminations, beyond hour one.
The hard cases, up to ~$900
Deep slab lines and multi-storey tracing at the top of the Sydney range.
Then the fix, priced on proof
Quoted off exactly what detection found, repaired through the marked spot, same crew, same visit, one call-out.
Weigh it against the alternative: exploratory demolition starts at more than detection costs, and it starts in the wrong place. Figures here are indicative of the 2026 Sydney market rather than a quote from us, you get your own number as a fixed price before any work starts.
How The Hunt Runs
Step 01
Step 01
Confirm Before Chasing
The meter test done properly, plus your bills. If the evidence says there is no supply leak to find, you hear exactly that, free of a detection invoice.
Step 02
Corner It
Isolating pipework section by section against a pressure gauge, hot versus cold, line by line, convicts one run and acquits the rest.
Step 03
Mark The Spot
Acoustic tracking and thermal imaging walk the guilty run until the signals stack. The X on the floor is accurate to centimetres.
Step 04
One Hole, One Fix
Access opens exactly at the mark; the failed section is repaired and pressure-tested. If the run's condition argues for a reroute instead, both numbers land first.
Meter Creeping With Everything Off?
Then it is real, running, and billing you daily. Detection this week beats discovery through a ruined floor next month.
It is elimination, not one instrument. Isolate sections and watch the meter to find which line is losing water, then listen along it with acoustic equipment for the sound escaping water makes. Where that is inconclusive, tracer gas is introduced into the isolated line and detected at the surface.
It is the most common way a concealed leak is found, usually after it has run a full quarter. Compare three bills rather than two: a single high quarter can be a garden or visitors, but a steady climb with no change in the household is a leak until something proves otherwise.
The meter test, and it is free. Turn off every tap and appliance that uses water, read the meter including the smallest dial, then check again an hour later without using anything. If the reading has moved, water is leaving the property. If it has not, you do not have a pressurised leak, which rules out a lot before you spend anything.
Acoustic listening, thermal imaging and tracer gas, which together normally place it inside a small area. That precision is exactly what you are paying for, it is the difference between cutting one section of floor and exploring several.
Very commonly. Failed waterproofing in a shower recess is the single most frequent source of inter-lot water damage in strata, and it presents as a damp ceiling patch months after the membrane gave up. Flood testing the recess is inexpensive and definitive, and it is a building repair, not a plumbing one.
If you are low on a slope, quite likely. Mains pressure rises as elevation falls and properties at the bottom of a hill often sit at the top of the acceptable range. A pressure test costs little and a limiting valve costs little more, the cheapest leak prevention available.
Pipework serving only your lot is yours; risers, mains and common-property lines belong to the owners corporation. A detection report naming the line, the lot and the direction of travel turns a dispute into a decision, a description of where the water appeared settles nothing.
Get The Leak Found And Fixed In Kellyville
Non-invasive detection, evidence before quotes, and one crew for the find and the fix.
