Repaired or replaced, often the same day. And if your complaint is a long wait at a distant tap, we will tell you plainly that a new unit will not fix it.
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This is the most common wasted purchase we come across, and on larger houses it is particularly common.
The complaint is that one tap, usually the furthest, takes an age to run hot. The assumption is that the system is tired. It rarely is.
What you are waiting for is the cold water already sitting in the pipe between the unit and that tap. It has to be pushed out before hot water arrives, and the longer the run the longer that takes. A brand new unit delivers hot water down exactly the same pipe.
What does help is insulating the run, or a recirculation arrangement that keeps hot water moving so it is already there when you open the tap. We would rather explain that than sell you a system that changes nothing.
That is the pipe, not the unit. Ask anybody quoting you a replacement to explain how it shortens the run.
Cold water sitting in the run has to be pushed out before hot arrives. On a larger house the run from the unit to the furthest tap can hold a genuinely surprising volume.
That is geometry rather than a fault, and no new unit shortens it. A brand new system will deliver hot water to that tap after exactly the same wait.
It is worth knowing before spending money on the wrong problem, which is the most common reason people are disappointed by a changeover.
Insulating the pipe helps at the margins by keeping the standing water warmer for longer. It is cheap, it is worth doing, and it will not transform anything.
Recirculation genuinely solves it by keeping the run warm, either continuously, on a timer or on demand from a button. It is a real installation rather than an accessory.
A small dedicated unit at the far end is the other honest answer, and on a house with a distant bathroom it is frequently the cheaper of the two.
A constant wait is pipe length. A wait that is noticeably longer than it used to be is a change, and a change is worth investigating.
Narrowing distribution is the usual explanation on older housing, where corrosion has reduced the bore from the inside over decades without changing anything you can see.
A mixer passing cold into the hot side produces a similar complaint for a different reason, and it is a much smaller job.
The compliance plate carries the date. A young system with a failed component is a repair. An old one with the same fault is usually a replacement, and pretending otherwise wastes your money.
Photograph the plate and send it through before anybody drives anywhere. Make, model, capacity and date, all in one image.
It also decides what parts come on the van, because elements, thermostats and anodes are not universal components.
Sydney's supply is soft. The anode protects the tank, and once it is gone the tank starts spending itself. Scale is rarely what ends a cylinder here.
Which means hard-water advice found online does not describe a tank in this city, and it means age alone is a weak guide to condition.
Renewing an anode costs a fraction of a replacement and buys years, and around the six or seven year mark it is the best value item on this page.
Rusty water, water at the base, banging or rumbling, and a relief valve discharging continuously. Any one of those is worth a look rather than a wait.
Discoloured hot with clear cold is the most informative of them, because it says the steel inside the cylinder is corroding and nothing else explains it.
A relief valve releasing occasionally is normal. One running steadily has failed or the incoming pressure is too high.
It is how many showers happen in the same window, and how long each one is. Bedroom count is a proxy that is wrong often enough to be useless.
Four people who leave at different times and four people who leave together need genuinely different systems, in the same house.
So tell us about the mornings rather than the floor plan. It takes one sentence and it changes the recommendation.
A shower draws hot and cold together, so the head sets the rate at which a cylinder is drawn down. Anything installed before the WELS labelling scheme can flow well above nine litres a minute.
A pair of heads costs a fraction of a hot water system and takes minutes to fit. If it solves the problem you have saved thousands.
If it does not, you have lost very little and you know the issue is genuinely the system.
Continuous flow needs an external wall and a flue path with the required distances from windows and vents. A heat pump needs airflow, clearance and somewhere its noise is acceptable.
On a larger house there is usually somewhere sensible, which is a genuine advantage over a terrace or a unit.
Getting the old unit out is part of the job too, and on an internal cupboard or a roof space that is a real part rather than an afterthought.
Water at a valve, a union or a connection on the top of the tank is ordinary repair work and frequently inexpensive.
Water emerging through the body of the cylinder is the steel failing. There is no sealant, clamp or liner that restores a corroded tank, and anybody proposing one is selling time rather than a repair.
Isolate it, cut its power or gas, and book the replacement. Waiting adds flooring and plaster to a bill that was only ever a hot water system.
Type and capacity settle most changeovers. In a larger house there is one more thing worth settling first: whether the complaint is actually about the system, or about the distance between it and the tap you use most.
| Type | Method of heating | Expected span | Reasonable where |
|---|---|---|---|
| Electric tank | A submerged element warms stored water, commonly overnight | About 8 to 12 years | Gas is absent and the existing position suits a tank |
| Gas tank | A burner underneath maintains the stored volume | About 8 to 12 years | Gas is connected, with room for the tank and clearances |
| Continuous flow | Heated in transit, with nothing held back | About 15 to 20 years | Gas is connected and the tank's space is worth reclaiming |
| Heat pump | Ambient warmth transferred into the tank | About 10 to 15 years | Outdoor room with moving air, common on larger blocks |
| Solar plus boost | Panels carry the load, a burner or element covers shortfalls | About 15 to 20 years | Roof orientation and space allow it |
Capacity decides how much you can draw before it runs out. Distance decides how long you wait for the first hot water. They are separate problems and only one of them is solved by a bigger unit.
| Occupants | Electric tank | Gas tank | Continuous flow |
|---|---|---|---|
| One or two | 125 to 160 L | 90 to 135 L | 16 L/min |
| Three to four | 250 to 315 L | 135 to 170 L | 20 L/min |
| Five upwards | 315 to 400 L | 170 L, or two units | 26 L/min |
| Long run to the far tap | Insulate or recirculate | Insulate or recirculate | Insulate or recirculate |
Fixed price agreed before anything starts. These are indicative 2026 ranges, and we will tell you when a replacement will not solve the complaint you actually have.
Credited against the repair if you go ahead.
The most common fault on electric storage, and a repair rather than a replacement.
The cheapest worthwhile thing you can do for a tank you intend to keep.
Supplied and installed, with removal and disposal included.
Where the complaint is a wait at a distant tap rather than a failing unit.
Electric storage, gas where the street carries it, and continuous flow where a tank came off the ground and onto a wall. These are the makes behind all of it.
We service and replace these systems as an independent licensed plumber. We are not an agent for, or endorsed by, any of these manufacturers.
And how far it is from the unit. If the complaint is a wait rather than a failure, that changes the whole answer.
We find the compliance plate and tell you the age before anybody mentions replacement.
If an anode, an element or a thermostat genuinely fixes it, that is the quote you get.
And if a replacement would not solve the complaint you actually have, we will say so instead.
We can usually be there the same day, and more often than people expect it turns out to be a repair.
Call 1300 381 569No, and it is the most common wasted purchase we see. The wait is the cold water sitting in the pipe between the unit and that tap, and it has to be pushed out before hot arrives. A new unit heats water no faster than the old one delivered it down the same pipe. On a larger house that run can be long, which is why the problem shows up here more than elsewhere.
Insulating the run helps at the margins. A recirculation arrangement genuinely solves it, by keeping hot water moving in the pipe so it is already there when you open the tap. Moving the unit closer works where it is practical. Replacing the unit does not, and anyone selling you one on that basis has not explained it properly.
On electric storage, look for a tripped circuit at the switchboard. On gas, check the pilot or ignition and that the supply is on. On anything, check whether an isolation valve got closed by somebody working on something else. If none of that explains it, ring.
Very often. Sydney's water is soft, so the scale that finishes tanks in hard-water regions is not the story here. The sacrificial anode corrodes away protecting the steel, and once it is spent the tank starts corroding. That or a failed element is most of what we attend.
No. A leaking storage tank is the end of that unit, and waiting costs more in water damage than the replacement does. Isolate it and ring.
It depends on type, installation and whether the anode was ever looked at, so we will not put a number on a unit we have not seen. We will find the compliance plate, tell you the age, and give a straight view.
Diagnosis and report is $120 to $250, credited against the repair if you proceed. An element or thermostat is $250 to $550. An anode replaced is $300 to $600. A storage replacement is $1,400 to $2,800 installed.
Tell us whether it is no hot water at all or a long wait at one tap. Those are completely different problems with completely different answers.
Repair quoted before replacement, and a straight answer when a new unit would change nothing.
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