Repaired or replaced, often the same day. Above a trading tenancy an ageing tank is a different kind of risk, and it is worth saying so plainly.
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Diagnosing it is no different here than anywhere else. Because the water is soft, what protects a storage tank is a sacrificial anode, deliberately corroding in the steel's place, and the tank starts going the moment that anode has nothing left to give. Add burnt elements and you have the bulk of our work.
What differs here is what sits underneath. A storage unit holds a substantial volume of water directly above a commercial tenancy: stock, equipment and somebody's trading day.
In a house, an ageing tank is a risk to your own floor and a decision you can reasonably defer. Above a shop it is a risk to a business that had no say in it, and that changes when replacement stops being optional.
It is also why continuous flow suits a lot of these flats. It stores nothing, so there is no volume waiting to find its way downstairs.
Worth having the age checked rather than waiting. A leak there is somebody else's business, not just your floor.
A storage unit is a substantial volume of water directly above stock, equipment and somebody's trading day. That is a different proposition from a tank in a garage.
It does not make a tank the wrong choice. It changes when replacing one stops being optional, and it makes the condition of an ageing cylinder worth knowing about.
It is the single reason this page reads differently from the same page on a suburban site.
Which in a flat above a tenancy is an argument in its own right, separate from running cost. There is no volume of water waiting to arrive on somebody's stock.
The trade is that it needs an external wall, a flue position with required clearances, and gas capacity, and on these buildings those are genuine constraints.
Where a position can be resolved, it is frequently the better answer here for that reason alone.
Terrace and shop-top buildings offer very little external wall, no side access, and frequently a light well rather than a yard.
So position is the binding constraint on what can replace an existing unit, well ahead of efficiency or preference.
It is worth establishing before shopping rather than after, because the cheapest unit that will not fit where the old one was is not cheap.
Up a narrow internal stair, through a dwelling above a trading business, and out onto a street with nowhere to stop a vehicle.
That is a real part of the job and it belongs in the quote rather than in a conversation on the day.
Mention the access when you ring. It changes who and what we send and when we can come.
The water is soft here, so the anode is what keeps a tank alive, and the tank starts spending itself the day the anode runs out.
Scale is not the mechanism in Sydney, so descaling advice written for hard-water places does not apply to a cylinder in this building.
Renewing an anode is inexpensive against a replacement, and where a tank sits above somebody's business it is worth doing on schedule rather than when convenient.
Not a repair, and not something to watch for a week. Water from the body of a cylinder is the steel failing, and it does not improve.
Turn the water off at the unit, kill its power or gas, and tell whoever is below you before you do anything else.
The people downstairs cannot see it happening and their stock is directly beneath it.
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.
Photograph the plate and send it through before anybody drives anywhere. It decides what comes on the van, and in this part of Sydney parking a second time is its own cost.
Past a certain age the parts are no longer manufactured at all, and that is better heard on the phone.
Discoloured hot water with clear cold is the tank telling you the steel inside it is corroding. It is the clearest early warning a cylinder gives.
A rumble or crackle on heating is usually sediment on the base with water trapped underneath boiling its way out.
Above a trading tenancy, either one is a reason to plan rather than wait, because the consequence of waiting is not confined to your flat.
A unit that empties mid-shower is generally undersized for how the household now behaves rather than faulty. Capacity is drawn down by what is taken in the same short window.
A flat let to a share household is the version of that people forget, because the building has not changed but the pattern of use has.
Describe the actual arrangement when you ask for advice. That is what the sizing runs on.
A shower draws hot and cold together, so the head sets the rate the unit is drawn down at. Anything installed before the WELS labelling scheme can flow well above nine litres a minute.
In a flat this is a particularly good bet, because it needs nobody's permission and costs very little.
If it solves the problem you have avoided a conversation with a landlord entirely.
Type and size decide most changeovers. In a flat above a tenancy there are two prior questions: whether gas reaches you with a compliant flue position, and whether it is sensible to keep a stored volume above a business at all.
| System | How it heats | Typical life | Suits a Newtown property when |
|---|---|---|---|
| Electric storage | An element heats a tank, often overnight on a controlled load tariff | 8 to 12 years | There is no gas, and there is a sensible position for a tank |
| Gas storage | A burner under a tank keeps a stored volume hot | 8 to 12 years | Gas reaches the property and flue clearances can be met |
| Continuous flow | Gas heats water on demand, nothing is stored | 15 to 20 years | Gas is available and nothing should be stored above a tenancy |
| Heat pump | Moves heat from the air into the tank rather than making it | 10 to 15 years | There is outdoor space with airflow, which is uncommon here |
| Solar with boost | Roof collectors, with an element or burner covering the gap | 15 to 20 years | It is a whole-building project rather than a single flat |
An opening position, not a rule. With storage the question is how much you can draw before it empties, so what counts is how many people want hot water inside the same hour.
| People in the home | Electric storage | Gas storage | Continuous flow |
|---|---|---|---|
| 1 to 2 | 125 to 160 L | 90 to 135 L | 16 L/min |
| 3 to 4 | 250 to 315 L | 135 to 170 L | 20 L/min |
| 5 or more | 315 to 400 L | 170 L or twin | 26 L/min |
| Sharehouse, staggered use | Size for the peak hour | Same | 20 L/min |
Fixed price agreed before anything starts, with access priced in. These are indicative 2026 ranges.
Comes straight off the repair bill if you decide to proceed.
What usually goes on electric storage, and it is a repair, not a new unit.
The one small job that genuinely extends a tank you want to hold onto.
Unit supplied and fitted, the old one carted away, access allowed for in the figure.
Where gas and a flue position allow, and nothing is left stored above the tenancy.
A lot of electric storage in the older stock, gas in the buildings plumbed for it, and continuous flow anywhere the sensible move is to stop keeping water above a shop. This is the equipment behind the lot.
We service and replace these systems as an independent licensed plumber. We are not an agent for, or endorsed by, any of these manufacturers.
A trading tenancy below changes how urgent an ageing tank is, and we would rather say that early.
The compliance plate gets read and you hear how old the unit really is well before the word replacement comes up.
Where an anode, an element or a thermostat will genuinely put it right, that is the quote you are handed.
The old unit goes with us, the new one goes in to standard, and the warranty is written down.
Same-day is usually achievable, and it lands on the repair side of the line far more often than people brace themselves for.
Call 1300 381 569Electric storage: start at the switchboard and see whether a circuit has tripped. Gas: the pilot or ignition, and whether the supply is actually on. Either way, it is worth finding out whether somebody working elsewhere in the building has shut an isolation valve, which is far commoner in a shared building than in a house. Beyond those, leave it and ring us.
More often than not. The supply in this city is soft, which takes limescale out of the picture entirely. Instead a sacrificial anode is eaten away so the steel is not, and the day it runs out the tank itself begins to go. Between that and a burnt element you have most of our call-outs, and on a sound tank both are repairs.
Because a storage unit holds a substantial volume of water directly above somebody else's stock and trading day. In a house an ageing tank is a risk to your own floor. Above a tenancy it is a risk to a business, and that changes when replacing it stops being optional and becomes sensible.
No. A leaking storage tank is the end of that unit, and above a trading tenancy it is urgent rather than something to think about. Isolate it, tell the business below, and ring. The water damage while somebody decides will exceed the cost of replacing it.
Frequently yes, and for a reason beyond running cost: it stores nothing, so there is no volume sitting above the tenancy waiting to fail. It depends on gas being available and a compliant flue position, which in these buildings is worth checking before you commit.
Too much rides on the type, the installation and whether anyone ever looked at the anode for us to guess at a unit we have not stood in front of. What we will do is read the compliance plate, tell you how old it actually is, and say plainly whether repairing it still stacks up.
Getting it diagnosed and written up runs $120 to $250, and that comes off the repair if you go ahead. Elements and thermostats sit between $250 and $550. A fresh anode is $300 to $600. Replacing a storage unit outright is $1,400 to $2,800 fitted, access included in the figure rather than bolted on afterwards.
Give us the type of system, a rough age, and what occupies the space underneath. That third answer shifts the advice further than most people would guess.
A repair is quoted before a replacement is, access is inside the figure, and the warranty is written down whichever way it goes.
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