
Hot water systems in Sydney
No hot water, or a system that is past its best? Our hot water plumbers repair, service and replace electric and gas systems, and help you pick the right one for your home. Sydney wide, day and night, and we never charge a call out fee.
Call 24 hours02 9099 9138- $0 Call Out
- Within the Hour
- 0% Interest Available
- Licensed #379146C
Book a plumber
Tell us what kind of system you have, how old it is and what it is doing. If the water is cold and you cannot wait, or water is pouring from the unit, ring us rather than filling in the form.
Our iron clad guarantee
- Complimentary safety inspection includedEvery job comes with a complimentary whole-system safety inspection for complete peace of mind.
- 100% satisfaction or we fix it freeNot happy with our work? We’ll come back and make it right at no extra cost.
- Full year warranty on all partsEvery component we install is backed by a comprehensive 12-month warranty.
- Lifetime guarantee on workmanshipOur installation work is guaranteed for life. If it fails due to workmanship, we’ll fix it free.
Sydney hot water services you can rely on!
Here at Rapid Service Plumbing, the experts in hot water plumbing in Sydney locals have trusted for years, our fully-licensed, always-friendly, ultra-experienced local Sydney plumbers can be at your place in a flash! In almost all cases, a single flying visit is all it takes to get your existing hot water system swiftly repaired or completely replaced with the most reputable names for plumbing services Sydney-wide at market-beating prices. There’s almost nothing more disruptive to a happy, busy home or a productive Sydney business than stone-cold water or a misbehaving hot water system. Have you got an eye on all the signs that something is wrong:
Plumber within the hour
Plumber within the hour
Plumber within the hour
Plumber within the hour
Plumber within the hourDoes your hot water plumber need to come now, or can it be a planned repair?
Cold showers are annoying, but most hot water faults are not dangerous. A few are, and the signs are easy to tell apart.
Call us now
02 9099 9138Plan a repair or swap
Call us now
Water pouring from the tank or valve
A steady flow from the unit or the pipes around it can damage floors and walls fast. Turn off the water to the heater and call us.
Plan a repair or swap
A slow drip from the relief valve line
Some water from the relief valve pipe as the tank heats is normal. A drip that never stops is worth a visit this week.
Call us now
A gas smell near the heater
Open the windows, keep flames and switches away from it and call us. A gas leak is never a job to leave overnight.
Plan a repair or swap
A pilot light that keeps going out
It is annoying and worth fixing, but it is not a leak. A daytime visit sorts out the cause.
Call us now
Scalding water from the taps
A system that overheats can burn someone. Switch it off at the power or gas and call us for an emergency hot water repair.
Plan a repair or swap
Hot water that runs out too soon
The unit may be too small for the house, or a part is failing. We can check the size and the parts at a time that suits you.
Call us now
No hot water in a home with babies, elderly people or illness
Hot water is a health need for some households. Ring us and we will try to get a plumber to your door inside the hour.
Plan a repair or swap
Rusty or cloudy water from the hot tap only
It points to corrosion inside an ageing tank. We can tell you whether to repair or replace before it fails.
Unsure whether yours is urgent?
Ring us and a licensed plumber will work it out with you on the phone.
Answered 24/7$0 call out fee
The hot water plumbing Sydney locals deserve
Oh no … has your hot shower just turned into a freezing cold nightmare? Are you in the market for a brand new, affordable, ultra-efficient hot water system across the exciting technology range? Are you looking for a fast and cost-effective repair?
No matter why hot water is on your mind, we supply, install, repair and inspect the widest range of hot water technologies all over Sydney - we have the perfectly personalised solution for you!

- Licensed #379146C
- Fully stocked van
- Honest pricing
Truly trustworthy Sydney hot water replacement
Perhaps you’re simply on the market to upgrade to an ultra-modern, super-efficient hot water system? Whether you’re tired of your ageing, misbehaving heater or you like the idea of lower bills, a smaller carbon footprint and all the whiz-bang features, we supply, install and repair the full range of hot water technologies such as:
The original, popular choice is still affordable but now more efficient than before.
Whether you’re on the mains or you hook up to LPG bottles, this is the cheaper alternative for even faster heat-up times.
Instantaneous
They look good, they’re small & sleek and you’ll simply never run of water … ever!
Heat pump/solar
Ultra-modern technologies are always the most exciting, but in our ‘green’ age they’re also the most moral and cost-effective choices for the long haul.
Talk to a plumber now
Free advice over the phone at any hour, and no call out fee.

Sydney hot water repairs with a difference
In some cases, a fast and cheap fix can be all your hot water system needs - and Rapid Service Plumbing will be all-to-happy to oblige! A little bit of hands-on love with our specialised tools, replacement parts and years of fully-licensed professional experience can tweak and shine your hot water system back into reliable action for a much longer life. We specialise in:
- 1All water temperature issues
- 2New thermostat or element installations
- 3Replacement valves
- 4Hot water system leak repair, anode rod replacement & so much more.
Wherever you are all across beautiful regions of Sydney - whether you’re in Canterbury-Bankstown, City of Sydney, Eastern Suburbs, Hills District, Inner West, Sutherland Shire and beyond, we can zip to your place with a fully-stocked van and an always-smiling hot water technician today! In almost all cases, we’ll have your issue resolved on the very same day, so see you soon!
Which hot water system suits your home, and when to repair or replace it
The right hot water system depends on how many people use it, what fuel the house has and how old the unit is. Pick the type you have or are considering to see what we do and where it leads.
A storage tank heated by an element suits most homes with no gas connection, and it is the system we repair most often. You will know it by the tank and the switch in the meter box.
We test the element, the thermostat and the power supply first, because those cause most no hot water calls. A failed part is often a same day repair.
If the tank itself is leaking or has rusted through, a repair will not hold and replacement is the honest answer. We tell you that before you pay for parts.
Electric systems are also where off-peak power and heat pump upgrades come up. Our electric page goes into both.
Electric hot water systemsGas systems come as a storage tank or as an instantaneous unit on the wall, and they suit homes already connected to gas.
Our licensed gas fitters carry out gas hot water repairs and replacements, and check the gas connection and flue as part of the job.
Our gas hot water page covers storage against instantaneous, flues and what a gas job involves.
These systems use much less energy to make the same hot water, so they suit homes that want lower bills and have the room outside for the unit or the roof panels.
We look at where it would sit, how much hot water the household uses and whether your current plumbing and power can take it.
You get the cost of the new system and the install before we start, so you can set it against what you pay now.
Rebates for these systems change, so we point you to the current rules instead of quoting figures here.
A system under about ten years old with one failed part is usually worth repairing. Our guide on how long hot water systems last sets out the typical life of each type.
A leaking tank, repeated callouts for the same system or a unit that no longer meets what the household uses are the signs that replacement will cost less over time.
We give you both options with a price for each, and the choice stays with you.
How it works
What happens on a hot water job, from the first phone call to hot taps again.
Describe the hot water problem
Ring 02 9099 9138 or use the form. Give us the system type, its age and the fault, and a fully stocked van heads your way with the likely parts.

Work order- $0 call out
- Answered 24/7
- Suburb and problem noted
Licensed #379146C, Sydney wide
Diagnose, then repair or replace
We find the fault, explain it in plain words and give you a price to repair and a price to replace where both make sense. Nothing starts until you agree.

Work order- Licensed #379146C
- Fully stocked van
- Within the hour
Licensed #379146C, Sydney wide
Hot water tested before we go
We check the temperature at the taps, the valves and the connections, and take the old unit away. Hot water installations and repairs both carry our lifetime workmanship guarantee.

Work order- Free safety inspection
- 12 month parts warranty
- Lifetime workmanship guarantee
Licensed #379146C, Sydney wide
What hot water system repairs and replacement cost in Sydney
A thermostat swap and a new system with an install are very different jobs, so there is no single price for hot water. You get the exact figure before we start.
Repair or replacement
A part such as an element, thermostat or valve costs a fraction of a new unit. A leaking tank cannot be repaired, so the job becomes a replacement.
The type of system
Electric storage, gas, instantaneous, heat pump and solar all differ in unit price and in the work needed to fit them.
The size of the unit
A bigger household needs a bigger tank or a higher flow rate. Our sizing guide helps you avoid paying for more than you need.
Where it sits
A tank on the ground by the side fence is quicker to swap than one in a roof space or a tight cupboard, and some units need a new base or stand.
Changes to pipes, power or gas
If the new unit needs different connections, a new circuit or a different flue, that work is added and shown in the price.
$0 call out fee
Any hour,
any day
- The price agreed before work starts
- Lifetime workmanship guarantee on the install
- Licensed #379146C, every plumber
Choosing and sizing a new system
Our sizing guide sets out how much hot water a household needs and what that means for the unit you buy. Read it before you compare quotes.
What Size Hot Water System Do I Need? A Sydney GuideAustralia’s favourite plumbing service provider
4.7
From over 340 reviews, Australia wide
“Sam from Rapid Service Plumbing came out and gave us a quote for job. He provided excellent information and was super clear about the work.”
“Anthony and Addison provided great knowledge and solutions to assist with our plumbing issue. Many thanks!”
“Fantastic service and fairly priced. Highly recommend!”
“Best service of all time, thanks SO much to the whole team”
“Let’s face it, call-out plumbing services are never cheap, but when anything plumbing breaks, it is often a matter of urgency lest daily life is disrupted.”
More plumbing services
All servicesKitchen Plumbing
View kitchen plumbingWater Leaks
View water leaksGas Fitting
View gas fittingDrainage Solutions
View drainage solutionsEmergency Plumbing
View emergency plumbingBlocked Drains
View blocked drainsBathroom Plumbing
View bathroom plumbingAreas we cover
258 suburbs across 9 regions of Sydney, from the Hawkesbury to the Shire, with a plumber on call in each.
Choose your region

Frequently asked questions
What types of hot water systems are available in Sydney?
The main types of hot water systems installed in Sydney are electric, gas (instant and storage), solar, and heat pump systems. Rapid Service Plumbing provides expert advice and installation for all these system types, helping you choose the best fit for your home or business based on energy efficiency, household size, and budget.
How do I know if my hot water system needs repair or replacement?
Common signs your hot water system needs attention include inconsistent water temperature, loud noises, water leaks, rusty or discoloured water, and reduced water pressure. If you notice any of these issues, Rapid Service Plumbing can diagnose the problem and recommend the most cost-effective repair or replacement solution.
How often should I service my hot water system?
It’s recommended to have your hot water system professionally serviced every 12 - 24 months. Regular servicing by Rapid Service Plumbing ensures reliable performance, extends the unit’s lifespan, maintains energy efficiency, and reduces the risk of sudden breakdowns.
What should I do if I suddenly run out of hot water?
If you suddenly lose hot water, first check for obvious issues like a tripped circuit breaker (for electric systems) or the pilot light (for gas systems). If the problem persists, contact Rapid Service Plumbing for fast troubleshooting and emergency repairs to restore your hot water supply promptly.
How much does a hot water system replacement cost in Sydney?
It depends on the type of system, its size and how hard the old unit is to reach and the new one to connect. We give you a fixed price after we look at the job, and there is no call out fee. Our sizing guide helps you compare quotes fairly.
Which hot water system is best for my home?
Electric storage suits homes with no gas. Gas suits homes on mains or bottled gas that want fast recovery. Heat pump and solar cost less to run but need space outside. Household size and the position of the current unit decide the rest, and we talk you through it. Our installers explain each option.
How long does a hot water system last?
Most storage systems last somewhere around ten years, depending on the type, the water quality and how well the unit has been maintained. Our guide on how long hot water systems last gives a range for each type, and we can tell you where yours sits.
Is there a hot water plumber near me who can repair it on the same day?
Very often, yes. Our vans carry common parts such as elements, thermostats and valves. If the part is not on the van, or the tank has failed, we tell you straight away and give you the quickest way to get hot water back.
Do I need a licensed plumber to replace a hot water system in NSW?
Yes. Plumbing and gas work must be done by a licensed tradesperson, and a new system connects to water, and often to power or gas. Licence details can be checked with NSW Fair Trading, and ours is #379146C.
Which parts of Sydney do your hot water plumbers cover?
We work in the Sutherland Shire, Inner West, Eastern Suburbs, City of Sydney and North Shore, and out to the Hills District, Northern Beaches, Canterbury-Bankstown, Western Sydney and South West Sydney. The nearest van comes to you.
Why is my hot water system leaking?
A drip from the relief valve line can be normal while the tank heats. Water from the tank body, a joint or a valve that never stops is not. A rusted tank cannot be repaired, but a failed fitting often can. Shut the water off to the unit and call us. Green Square and the City are covered too.
Do you do hot water maintenance on systems that are working fine?
Yes. A service checks the valves, the anode, the thermostat and the connections before they fail, and it is a good time to ask whether the unit still suits the house. We also offer a complimentary safety inspection.
Get a free quote
Get obligation free plumbing quotes & guaranteed workmanship from our 5-star rated local Sydney plumbing team



