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Here, where it goes decides what you can have

Most hot water advice starts with fuel. Gas or electric, storage or continuous, heat pump or not. That is the right question in a suburb with room to put things.

On a great deal of this housing it is the second question. The first is whether there is anywhere the unit can legally and safely sit. Frontages are narrow, a lot of the stock shares a wall, and the side passage where the old unit lives is frequently too tight to service properly, let alone to take something larger.

Add heritage conservation areas across much of the suburb, which constrain what can change on a street frontage, and the shortlist narrows before anyone has discussed running costs.

So we measure first. Clearances, ventilation, drainage, whether it is visible from the street, and whether the noise lands on a neighbour's bedroom wall. Then we tell you what your real options are, which is sometimes fewer than the brochure suggests.

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Same-day repairsWhere a repair is the honest answer
Clearances measuredBefore you buy, not after it arrives
Gas, electric, heat pumpServiced and replaced across all of them
Licensed plumberNSW Licence 368473C, fully insured

Local hot water guide

Choosing a hot water system on a narrow Marrickville lot

Measure the space before choosing the system

Every unit has minimum clearances for servicing and, if it burns gas, for ventilation and flue termination. Those are not optional and they are not negotiable at inspection time.

On a frontage of a few metres with a shared wall, the available envelope is often smaller than the unit somebody has already been sold. Measuring first is not caution, it is the difference between an installation and a return.

Storage tanks need floor, continuous flow needs wall

A storage tank takes up ground. On a lot where the only outdoor space is a side passage you also have to walk down, a tank can effectively close the passage.

A continuous flow unit hangs on a wall and gives that ground back, which on tight sites is frequently the deciding factor rather than the running cost. It does need gas that can supply it, which is worth checking before ordering.

Heat pumps need air and make noise

A heat pump moves heat rather than making it, so it needs real airflow around it, and it runs a fan and a compressor to do that.

In a rear yard with a bit of room they are a genuinely good answer here. Wedged into a narrow side passage a metre from a window, less so, and if that window belongs to the neighbour you will hear about it. We will tell you plainly which situation you are in.

Heritage frontages limit what can go out the front

Heritage conservation areas cover a lot of this suburb, and they constrain external change on a street frontage. A like-for-like swap in the existing position is generally straightforward.

A new position that is visible from the street, or a flue or vent that changes the look of a period frontage, is a different matter and worth establishing before you commit rather than after the unit is on the truck.

Converted warehouses have a distance problem, not a unit problem

In a conversion the plumbing was retrofitted to reach a connection point fixed long beforehand, so hot water often travels a long horizontal run to get to a tap.

That shows up as a long wait at the outlet and a lot of cold water down the drain, and replacing the unit does not fix it because the unit was never the cause. The fix is usually about where the heat is generated relative to where it is used.

What we handle same day

No hot water at all, diagnosed and repaired
Elements, thermostats, valves and anodes
Leaking tanks made safe and replaced
Gas, electric, heat pump and solar serviced
Clearances and siting checked before you buy

Call 1300 381 569

Our Marrickville service area

Map data © OpenStreetMap contributors, tiles © CARTO.

Which system, and what will actually fit

Type and size decide most changeovers. Undersize a tank and you run out mid-shower. Oversize it and you pay to keep water hot that nobody uses. On these lots there is a third constraint before either of those: whether the thing physically goes anywhere.

Indicative service life. What you actually get depends on how hard the system is worked, whether the anode has ever been changed, and whether it was ever installed somewhere it could be serviced at all.
System	How it heats	Typical life	Suits a Marrickville lot when
Electric storage	An element heats a tank, often overnight on a controlled load tariff	8 to 12 years	There is floor space for a tank and no gas at the property
Gas storage	A burner under a tank keeps a stored volume hot and ready	8 to 12 years	There is room and ventilation for a tank plus its flue clearances
Continuous flow	Gas heats water on demand as it passes, nothing is stored	15 to 20 years	Ground space is the constraint, because it hangs on a wall instead
Heat pump	Moves heat from the air into the tank rather than generating it	10 to 15 years	There is a rear yard with real airflow and no bedroom wall beside it
Solar with boost	Roof collectors do the work, an element or burner covers the gap	15 to 20 years	The roof is not heritage-constrained and the tank has somewhere to go

Sizing, roughly

A starting point rather than a rule. A household that showers back to back inside an hour needs more than the same number of people spread across a morning.

Continuous flow is rated in litres per minute rather than capacity, because it never stores anything. That is precisely why it keeps coming up on lots with no floor to give.
People in the house	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 to 200 L	26 L/min

What hot water work costs in Marrickville

Quoted at a fixed price before it starts. These are indicative 2026 ranges. Where the unit has to move position, the extra pipework and any flue work is priced separately so you can see exactly what the siting is costing you.

Diagnose and repair $250 – $650

Element, thermostat, valve or anode. Frequently done in the same visit.

Tank replacement, same position $1,400 – $2,800

Like for like, installed and compliant, old unit taken away.

Continuous flow $1,900 – $3,500

Wall hung, which gives the ground back. Subject to what the gas line supports.

Heat pump from $3,200

Where there is genuine airflow and the noise does not land on a bedroom wall.

Repositioning quoted separately

Extra pipework, and flue work where it applies. Always shown as its own line.

How a hot water call-out runs.

Step 01

Taking a hot water call for a Marrickville property

What is it and where does it sit?

Make, rough age and position. On these lots the position is half the diagnosis, because it decides what can replace it.

Step 02

Diagnosing a hot water system at a Marrickville house

Diagnosed before it is condemned

Plenty of failures are an element, a thermostat or an anode. We check before recommending you spend thousands.

Step 03

Measuring clearances for a hot water unit in Marrickville

Clearances measured

If it does need replacing, we measure what will legally and serviceably fit in the space that actually exists.

Step 04

Completed hot water installation at a Marrickville property

Installed, compliant, old one gone

Fitted to standard, tested, and the old unit removed rather than left down the side of the house.

Hot water questions.

What Marrickville locals ask us before booking a plumber.

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

There is no hot water this morning. What can I check first?

If it is gas, check whether the pilot or ignition is still going and that the gas is on at the meter. If it is electric, check the switchboard, and check whether it is on a controlled load tariff that only heats overnight, because a unit that ran out at 7am has not necessarily failed. If it is a heat pump, listen for whether the fan is running at all. Then look underneath for water. A unit that is leaking is a different conversation from one that simply is not heating, and knowing which saves us both time.

Why does everyone here tell me my options are limited?

Because on lots this narrow they usually are. A great deal of this housing sits on a frontage of a few metres with a shared wall down one side and little or no usable setback on the other. There is often no legal, ventilated, serviceable spot for a unit that is any bigger than the one already there. That is not a sales line. It is why we measure the space and check the clearances before recommending anything, rather than after.

Can I put a heat pump in?

Sometimes, and it is worth asking. The catch is that a heat pump needs genuine airflow around it and it makes noise while it runs. On a narrow lot the only available position is frequently a metre from a bedroom window, and quite often that bedroom is the neighbour's. Where there is a rear yard with a bit of room it can be an excellent answer. Where the only spot is a side passage nobody could walk down, it is not, and we will say so.

The house is in a heritage conservation area. Does that matter?

For a like-for-like replacement in the same position, usually not much. Where it starts to matter is if the new unit needs to go somewhere visible from the street, or needs a flue or a vent that changes the appearance of a frontage. Heritage conservation areas are widespread through this suburb and they constrain external change. It is worth establishing what is actually allowed before you commit to a system that has to go out the front.

It is a converted warehouse. Is that different?

Usually yes. Plumbing retrofitted into a building that was never designed for it tends to run long horizontal distances from wherever the connection point ended up, so the delay before hot water arrives at the tap can be substantial and has nothing to do with the unit itself. There is also often nothing below slab level, so the position options are whatever the original conversion allowed. Continuous flow is frequently the practical answer in that situation, though it depends on the gas supply.

Should I repair the old one or replace it?

Depends on the fault and the age. A failed element, a thermostat or a spent anode on a tank that is under ten years old is usually worth repairing and often can be done same day. A tank that is rusting through, or one already past about fifteen years, is throwing good money at a unit that will fail again. Where it matters here is that replacement may also reopen the siting question, so we work out what will actually fit before recommending it.

What does hot water work cost in Marrickville?

A repair, so an element, thermostat, valve or anode, generally runs $250 to $650. A like-for-like tank replacement in the same position is $1,400 to $2,800 installed. Continuous flow is $1,900 to $3,500 depending on the unit and what the gas line will support. Heat pumps sit higher again and are worth pricing against the rebates. Where the position has to move, that adds pipework and sometimes a flue, and we price that separately so you can see it.

Hot water repairs and replacement
in Marrickville

Get a hot water callback

Here, where it goes decides what you can have

Tell us what it is and where it sits.

Choosing a hot water system on a narrow Marrickville lot

Measure the space before choosing the system