On these blocks the water service can run thirty metres from the meter to the house, so a leak often shows up as a green patch and a high bill rather than water indoors. We locate it before anything is opened.
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Two things, and the first is about distance rather than plumbing.
The water service runs from the meter at the street boundary to the house, and on a 700 to 900 square metre block that is a long way. Thirty metres of pressurised pipe sitting under lawn is ordinary here. A failure anywhere along it does not flood a room, it waters your garden quietly and appears on the bill. People routinely run a service-line leak for months without knowing, because there is nothing indoors to notice.
The second is age. These estates went up through the 1970s and 1980s, which puts the original copper at forty five to fifty five years old. Copper that age fails in pinholes rather than bursts, so the tells are undramatic: pressure drifting down over a few years, a stain that dries and returns, a bill creeping up without a change in the household.
Both point the same way. The useful skill here is finding a leak that is not announcing itself, on a run long enough that guessing is expensive.
Call and we will talk you through the meter while the van is moving. On these blocks it is at the street, so it is worth knowing where before you need it.
A service line failure on a long run does not produce a dramatic symptom. It produces a slightly greener strip of lawn, ground that stays soft after everything else has dried, and a bill that has crept up.
Because none of that is alarming, these run for months. The ten minute test that settles it costs nothing: turn every tap and appliance off, then watch the meter. A dial still moving means water is escaping somewhere between the meter and the house.
The original copper in these estates is now forty five to fifty five years old. At that age it develops pinholes rather than splitting, and a pinhole under pressure inside a wall or under a slab can seep for months before it surfaces.
Falling pressure over several years, a recurring stain, or a bill drifting upward are the warning signs worth acting on. Replacing a failing section on a schedule is a known price. Replacing it after it lets go is the same job plus whatever the water did.
Water escaping underground travels before it surfaces, following whatever path the ground offers. On a long, shallow service run the visible wet patch can be well away from the actual failure.
Acoustic listening follows the sound of water escaping under pressure along the line itself. We then mark the position on the surface, which is what turns a repair into one opening rather than a trench following a pipe across a lawn, a garden bed and a driveway.
A gradual drop in pressure over years usually means the bore of something is narrowing, or a service line is partially failing. A sudden drop usually means something has let go.
It is worth measuring rather than guessing, because the fix for low supply pressure and the fix for a degraded service line are completely different jobs at completely different prices, and only one of them is worth doing.
The honest conversation on a long run of aged copper is whether patching it a third time is sensible. Each repair is cheap; three of them plus the water lost between is not.
Replacing the service line is a bigger job with a known price, and on an open block with lawn between the meter and the house it is usually more straightforward than people fear. We will put both numbers in front of you rather than quietly repeating the repair.
Close everything, including the machine and the dishwasher, and watch the smallest dial on the meter for a couple of minutes. Movement means water is genuinely leaving the property.
A dial that sits perfectly still points at usage rather than a fault, which on a block this size usually means irrigation, a pool topping itself up, or a cistern passing quietly.
Turn the irrigation controller off entirely before you run the test rather than just to a rest day, or it will run during the measurement and confuse the answer.
Once the meter has confirmed a loss, close the isolating valve feeding the hot water unit and take a second reading. Two minutes, no tools.
Continued movement means the cold side. No movement means the unit itself or the hot pipework it feeds.
Have a look at where the relief valve discharges before you assume the tank is at fault, because a valve running steadily looks the same on a meter and is far cheaper to fix.
What a burst costs is decided in the minutes between the failure and somebody closing the water. The repair afterwards is ordinary work. The minutes before it are flooring and cabinetry.
On a long frontage the meter can be a genuine walk from the house, which matters at two in the morning. Find it on a dry afternoon and check the tap actually turns.
Learn the isolating valves indoors as well, because closing one of those handles a specific failure without taking water off the whole property.
A set of braided hoses costs very little and takes a plumber a short visit to replace. The damage one causes when it lets go runs to insurance-claim numbers.
They have a service life of roughly five years and they do not degrade politely. There is no drip that warns you.
Turning the isolating valves under a vanity off before a week away costs nothing and removes the risk entirely for that period.
A reticulation system on 900 square metres frequently moves more water than the household does, and a failed solenoid or a split poly line does what a leaking cistern does: continuously, invisibly, into the ground.
It also defeats the meter test if the controller runs during it, so turn the controller off entirely rather than to a rest day before you measure anything.
If the dial stops when the irrigation is isolated, that is the answer, and it is a cheaper one than most alternatives on this page.
On a long service line under lawn, escaping water goes into the ground and produces no puddle anybody would notice. The quarterly account is frequently the only symptom.
The order of work is the meter test, then the hot water isolation, then the run between the meter and the house. That last one is the expensive possibility and the one worth ruling out early.
On thirty metres of forty-five-year-old copper it is also the likeliest, which is why we start listening along the line rather than digging at whatever looks damp.
The honest conversation on a long run of aged copper is whether patching it a third time is money spent or money postponed. Each repair works. The pipe is still the age it is.
Replacement of a full service line is a real cost and it is not always the right call, particularly where the failures have all been at one end.
What decides it is where the failures have been and what the rest of the run looks like when tested, not a rule about age.
Quoted before we start. Indicative 2026 Sydney ranges. On a long service run, locating properly is what keeps the excavation to one spot, and that is where the money is saved.
Waived when you book through this site. Booked another way it is up to $180.
Acoustic and thermal along the run, with the position marked on the surface.
Isolated, contained and repaired where the failure is accessible.
Priced by length. Worth pricing against a third patch on fifty year old copper.
The market rate for nights and weekends. Told to you before we come out.
The meter is out at the boundary here, so we talk you through finding it and the switchboard before anything else happens.
Water off and whatever has escaped contained before diagnosis starts. Nothing gets quoted while water is still moving.
Acoustic along the service line and thermal where hot water is involved. On thirty metres of pipe, following it is the only reliable method.
The position marked on the surface, a fixed figure approved, and what failed photographed for your insurer and any Sydney Water allowance.
Turn everything off and watch the meter. On a block this size a still-turning dial usually means the leak is out in the lawn, and that takes ten minutes to establish.
Call 1300 381 569What Castle Hill locals ask us before booking a plumber.
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Turn the water off at the meter, which on these blocks is at the street boundary and can be a fair walk from the house. Turn it clockwise until it stops. If water is anywhere near a light fitting, a power point or the switchboard, kill the power at the main switch first. Then open the lowest tap you have, usually an outside garden tap, so the pressure drains out there rather than into a ceiling. Worth knowing where your meter is before you need it.
That is the classic presentation here, and the reason is distance. The water service runs from the meter at the street to the house, and on a 900 square metre block that is thirty metres of pressurised pipe under your lawn. A leak anywhere along it runs continuously into the ground and never reaches the building at all. Turn every tap and appliance off and watch the meter: if the dial is still turning, water is going somewhere, and on this housing it is very often out in the yard.
Then you have probably found it. A pressurised line losing water underground waters the ground above it continuously, so through a dry spell that strip stays greener and softer than everything around it. On a big block with a long service run that is frequently the only visible sign there is. It is worth acting on, because you are paying for every litre and the ground movement around a persistent leak does no favours to anything else buried nearby.
In this housing there usually was warning. The estates went up through the 1970s and 1980s, which puts the original copper at forty five to fifty five years old. Copper of that age fails in pinholes rather than splits, and a pinhole seeps for weeks or months before anything surfaces. Falling pressure over a few years, a stain that dries and returns, or a bill drifting upward are all the pipe telling you where it is up to.
That is the entire point, and on a thirty metre run it matters more than almost anywhere. We use acoustic listening along the line, which follows the sound of water escaping under pressure, and thermal imaging where hot water is involved. The aim is to mark one spot on the surface and open that, rather than trench along a service line and hope. On a block with established garden, a driveway and a pool, the difference is substantial.
Usually the damage is and the pipe itself usually is not. Most policies cover water damage to the building and contents from a sudden burst, exclude repairing the failed pipe, and exclude damage from a leak that has been seeping gradually. A service-line leak out in the lawn generally causes no building damage at all, so what you are really out is the water on the bill. Sydney Water has a concealed leak allowance in some circumstances and it needs the repair documented, so keep the paperwork.
Sometimes, and it is a fair question on a run this long. If we are repairing a second or third pinhole in the same fifty year old copper run, patching it again is buying months. Replacing the run is a bigger job with a known price, and on an open block with lawn between the meter and the house it is usually more straightforward than people expect. We will give you both numbers rather than quietly repeating the repair.
Tell us whether the meter is still turning with everything off, and whether there is a green or soft patch anywhere in the lawn. Those two answers usually locate it roughly before we arrive.
Fixed price agreed before the repair starts, and the position marked before anything is dug.
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