Hot Water Systems Kensington | Repairs & Replacement

Two questions, not one

The technical question here is the same as anywhere. Sydney's water is soft, so a storage tank is protected by a sacrificial anode that corrodes so the steel does not, and once it is spent the tank starts corroding instead. That or a failed element is most of what we see, and both are frequently repairs on a tank that is otherwise sound.

The second question is local. On these streets, replacing a unit can involve something visible from outside, and much of the area sits in a Heritage Conservation Area where the external appearance of a property is regulated rather than a matter of preference.

There is a third wrinkle on a mixed-tenure estate: whoever can approve a replacement is not always whoever is standing in the kitchen with no hot water.

None of that stops the work. It just means the sensible order is diagnose, quote, establish approval, then install, rather than turning up with a unit on the truck and hoping.

Call 1300 381 569 Book a look

Repair quoted firstReplacement only where warranted
Often same-dayAcross Kensington and the eastern suburbs
Approval established earlyBefore anything is ordered
Licensed plumberNSW Licence 368473C, fully insured

Local hot water guide

Hot water on a Kensington property

Soft water, so anodes rather than scale

Sydney's supply is soft. The sacrificial anode protects the tank, and once it is gone the tank corrodes.

Replacing an anode costs a fraction of the tank it protects and is the most worthwhile thing you can do to a unit worth keeping.

What is visible from the street matters

Much of this area is in a Heritage Conservation Area, where external appearance is regulated.

A relocation or a flue that would be visible is a Council question, and we would rather raise it before you order than afterwards.

Approval is a separate question from diagnosis

On a mixed-tenure estate the person with no hot water is not always the person who can commission a replacement.

We diagnose and quote either way, and put it in writing so whoever decides has what they need.

Age decides repair against replace

The compliance plate carries the date. A young system with a failed component is normally worth repairing.

One deep into its life with a leaking tank is not, and we would rather say so than sell a repair that buys a season.

Signs worth acting on early

Rusty or discoloured hot water, water at the base of the unit, banging or rumbling, and a relief valve discharging steadily rather than occasionally.

None of those improve on their own.

Which system, and what the property will actually allow

Type and size decide most changeovers. Here there are two prior questions: whether anything about the installation would be visible externally on a conservation-area street, and who is able to approve a replacement. Both are worth settling before ordering.

Indicative service life. What you get depends on how hard the system is worked, whether the anode was ever changed, and whether it was installed somewhere it could be serviced.
System	How it heats	Typical life	Suits a Kensington property when
Electric storage	An element heats a tank, often overnight on a controlled load tariff	8 to 12 years	There is no gas, or the existing position already suits a tank
Gas storage	A burner under a tank keeps a stored volume hot	8 to 12 years	Gas reaches the property and there is room for a tank plus flue clearances
Continuous flow	Gas heats water on demand, nothing is stored	15 to 20 years	Gas is available and the wall position does not raise a heritage question
Heat pump	Moves heat from the air into the tank rather than making it	10 to 15 years	There is outdoor space with airflow away from a neighbour's window
Solar with boost	Roof collectors, with an element or burner covering the gap	15 to 20 years	The roof orientation works and the visibility question has been settled

Sizing it for the household

A starting point rather than a rule. Storage size is about how much you can draw before it runs out, so what matters is how many people want hot water inside the same hour.

Continuous flow is rated in litres per minute rather than capacity, because it stores nothing and so never runs out partway through.
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
Two bathrooms at once	Size up a step	Size up a step	26 L/min, no wait

What hot water work costs in Kensington

Fixed price agreed before anything starts. These are indicative 2026 ranges, with access priced into the quote rather than added afterwards.

01

Diagnosis and report $120 – $250

Credited against the repair if you go ahead.

02

Element or thermostat replaced $250 – $550

The most common fault on electric storage, and a repair rather than a replacement.

03

Anode replaced $300 – $600

The cheapest worthwhile thing you can do for a tank you intend to keep.

04

Storage system replaced $1,400 – $2,800

Supplied and installed, with removal and disposal priced in.

05

Continuous flow changeover $2,000 – $3,800

Where gas is available and the position does not raise a heritage question.

How a hot water call-out runs.

Step 01

Booking a hot water call-out in Kensington

We ask where it sits

And who can approve a replacement. Both shape the job before anybody looks at the unit.

Step 02

Diagnosing a hot water system at a Kensington home

Diagnosed, and dated

We find the compliance plate and tell you the age before anyone mentions replacing anything.

Step 03

Repairing a hot water system at a Kensington property

Repair quoted first

If an anode, an element or a thermostat genuinely fixes it, that is the quote you get.

Step 04

Installing a replacement hot water system in Kensington

Replaced properly if it is time

Old unit removed and disposed of, the new one installed to standard and warranted in writing.

Hot water questions.

What Kensington locals ask us before booking a plumber.

Ask us yours Licensed plumbing van covering Kensington and the surrounding suburbs

No hot water at all. What should I check first?

On electric storage, look for a tripped circuit at the switchboard, which accounts for a surprising number of call-outs. On gas, check the pilot or ignition and that the supply is on. On anything, check whether an isolation valve was closed by somebody working on something else. If none of that explains it, stop and ring rather than opening anything.

Is it always the anode?

Very often. Sydney's water is soft, so the scale that finishes tanks in hard-water regions is not the story here. Instead the sacrificial anode corrodes away protecting the steel, and once it is spent the tank begins corroding. That or a failed element accounts for most of what we attend, and both are frequently repairs rather than replacements.

Can I move the unit outside, or change to continuous flow?

Possibly, and it is often a sensible upgrade. On a conservation-area street there is an extra question: whether a new unit or a flue would be visible externally, because what the outside of a property looks like is regulated here. Council decides that. We will tell you plainly when we think a proposal crosses into their territory.

Who approves a replacement?

That depends on who owns the property, which on these streets is not something the house tells you. We can diagnose the fault and quote the work either way. What we cannot do is proceed without whoever is able to authorise it, so it is worth establishing early.

How long should a system last?

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 on whether repair makes sense.

The tank is leaking. Can it be repaired?

No. A leaking storage tank is the end of that unit, and the water damage while somebody decides usually outruns the cost of replacing it. Isolate it and ring, rather than waiting to see whether it settles, because it will not.

What does hot water work cost in Kensington?

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 supplied and installed, with access priced into the quote.

Hot water systems
across Kensington

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Two questions, not one

Tank leaking?