Hot Water Systems

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Licensed hot water plumbers across Adelaide, Perth & Brisbane

G★★★★★
4.6 · 2,000+ Google reviews

Whether you need a repair, a new system, or advice on the best type for your home, our licensed plumbers handle every kind of hot water system, electric, gas, heat pump and solar.

We install, service and replace hot water systems across Brisbane, Perth and Adelaide, often the same day, with upfront fixed pricing.

Why choose Same Day Trades for hot water systems?

We are local, licensed and insured plumbers who do this work every day, so we get it right the first time, with no mess and no surprises on the invoice.

Fully licensed and insured plumbers
Upfront fixed pricing before we start
Same-day service where we can, with 24/7 phones
Workmanship guaranteed and the job left clean
Servicing Brisbane, Perth and Adelaide

Whatever the job, you get honest advice and a tidy, professional result.

Types of hot water systems

There are four main types of hot water system in Australian homes, and each suits a different household, budget and energy connection:

Electric storage, the cheapest to buy, works anywhere there is power
Gas storage and continuous flow, lower running costs with gas, and endless hot water from continuous flow
Heat pump, highly efficient and usually rebate-eligible
Solar, the lowest running costs of all

We supply, install, repair and replace all of them, and the right choice comes down to your household size, your energy connection, your roof and your budget. Our licensed plumbers will walk you through the options and recommend the best value for your home across Brisbane, Perth and Adelaide.

Electric hot water systems

Electric storage systems are the most affordable to buy and the simplest to install, since they only need a power connection and work anywhere. The trade-off is running cost: electricity is dearer than gas or a heat pump, though many electric systems run on a cheaper off-peak overnight tariff to keep bills down. They are a practical choice for smaller households, for homes without gas, and as a straight like-for-like replacement when budget is the priority. We install, repair and replace all electric systems, including elements, thermostats and valves, and can advise whether an off-peak or continuous tariff suits your usage.

Gas hot water systems

If you have a gas connection, gas hot water usually costs less to run than electric. Gas storage keeps a tank of hot water ready and recovers quickly, which suits households with heavy simultaneous demand. Continuous flow (instantaneous) gas heats water only as you use it, so you never run out, there is no standby heat loss, and the compact unit mounts on a wall to save space. Both need a licensed gas fitter to install, which is exactly what we are. We will help you choose between storage and continuous flow based on how many people use hot water at once in your home.

Heat pump hot water systems

Heat pump systems are one of the most efficient ways to heat water. They work like a reverse air conditioner, drawing heat from the surrounding air to warm the water, and use up to 70% less energy than a standard electric system. They cost more to buy, but generous government rebates usually close much of that gap, and the low running costs save money year after year. Heat pumps suit most climates and do not need roof space like solar. If you want to cut your hot water bills and qualify for a rebate, a heat pump is well worth considering, and we will tell you if it suits your home.

Solar hot water systems

Solar hot water uses roof-mounted collectors to heat your water directly from the sun, with an electric or gas booster for cloudy days and heavy use. It has the lowest running costs of any system and attracts government rebates, so while the upfront cost is higher, it pays off strongly over time, especially for larger households in sunny areas. Solar needs suitable, well-oriented roof space, so it is not right for every home. We will assess your roof and usage and let you know whether solar, or a heat pump, gives you the best long-term value.

Repair or replace your hot water system?

Not every fault means a new system. If your unit is under 8 to 10 years old and the issue is a minor part, such as a heating element, thermostat, valve, pilot or thermocouple, a repair is usually the best value. Once a system is older, leaking from the tank body, or needing repeated repairs, replacement is the smarter choice, and it is the ideal time to move to a more efficient system. Our plumber will give you an honest assessment and a price for both repair and replacement, so you can decide with all the facts rather than being pushed into a new unit you do not need.

Common hot water problems we fix

We repair every common hot water fault, including:

No hot water at all, often a failed element, thermostat, pilot or thermocouple
Water not hot enough or running cold quickly, usually a thermostat or undersized/ageing tank
Leaking tank or fittings, which may be a valve or, if the tank itself leaks, a replacement
Discoloured or smelly hot water, often a corroded anode or sacrificial rod
Noises like rumbling or banging from sediment build-up
Relief valve dripping constantly

We diagnose the real cause and quote the fix upfront, rather than just replacing parts and hoping.

Signs your system needs replacing

Most hot water systems last 8 to 12 years. Watch for these signs the end is near: water that runs cold quickly or never gets hot enough, rusty or discoloured hot water, leaks or corrosion around the tank, banging or rumbling noises, rising energy bills, or a unit over 10 years old. A tank leaking from its body cannot be reliably repaired and needs replacing. Catching these signs early means you can plan a replacement rather than being caught with no hot water, though if yours has already failed, we offer same-day replacement across Brisbane, Perth and Adelaide.

Choosing the right size system

Getting the size right means you never run out of hot water and never pay to heat water you do not use. As a rough guide, a 1 to 2 person home suits a 125 to 170 litre storage tank, a 3 to 4 person home suits 250 to 315 litres, and a 5 or more person home suits 315 litres or more. Continuous flow units are sized by flow rate instead, based on how many outlets run at once. Peak usage matters too, so a household where several showers run back to back needs more capacity. We confirm the right size on site so your system fits how you actually live.

Hot water running costs compared

Running cost is where the systems really differ. Heat pump and solar cost the least to run, gas sits in the middle, and electric storage is the most expensive, though off-peak electric helps. Over the 10-plus year life of a system, that difference adds up to thousands of dollars, which is why the cheapest system to buy is often not the cheapest to own. When you are replacing a unit, it is worth considering the total cost over its lifetime, not just the purchase price. We will give you an honest comparison so you can balance upfront cost against years of running savings.

Rebates and incentives

Efficient hot water systems attract real financial help. Federal small-scale technology certificates (STCs) discount heat pump and solar systems at the point of sale, and various state schemes add further rebates, sometimes worth over a thousand dollars. Eligibility depends on the system, your location and sometimes the unit you are replacing. We stay across the current schemes, let you know exactly which rebates your chosen system qualifies for, and apply them where we can, so the price you are quoted is the real, discounted price, not a figure you have to chase a rebate to reach later.

Our installation and replacement process

We keep replacement day simple and tidy:

Assessment, we confirm the best type and size for your home
Removal, we drain, disconnect and take away your old unit
Installation, we fit and connect the new system, including water, and gas or electrical as needed
Valves, we fit the relief valves and a compliant tempering valve
Commissioning, we test the system, check for leaks and show you how it works

We clean up and remove the old unit, leaving you with hot water and no mess.

Tempering valves and compliance

Every new hot water installation needs a compliant tempering valve, which blends hot and cold water to deliver it to your bathroom at a safe 50 degrees, preventing scalding. It is a legal requirement, and we fit or replace it as part of the job. Hot water work also involves water, and often gas or electrical connections, so by law it must be done by a licensed plumber, and a licensed gas fitter where gas is involved. Using a licensed professional keeps your manufacturer warranty valid and ensures the installation meets Australian Standards.

Same-day hot water service

No hot water is miserable, especially in winter, so we treat it as a priority. We carry the most common electric, gas and continuous flow systems and parts, so we can often repair or fully replace your hot water the same day across Brisbane, Perth and Adelaide. Our phones are answered around the clock, so whenever your hot water fails, call us and we will get a licensed plumber to you as fast as possible, with an upfront fixed price before any work starts.

Why choose Same Day Trades for hot water

We work on hot water systems every day, so you get fast, reliable service from licensed plumbers who know every type and brand. You get honest advice on repair versus replacement, help choosing the most efficient system, upfront fixed pricing, same-day service where we can, and all the rebates and compliance handled for you. Searching for a plumber near you? We cover Brisbane, Perth and Adelaide and stand behind our workmanship.

Hot water system FAQs

Which hot water system is cheapest to run?

Heat pump and solar systems have the lowest running costs, followed by gas, then electric storage. The best choice depends on your energy connection and household size.

How long does a hot water system last?

Most systems last 8 to 12 years. Once a unit is past that age or leaking from the tank, replacement is usually better value than repair.

Can you repair my hot water system?

Often, yes. Faults like a failed element, thermostat or valve are usually repairable. If the tank itself is leaking, it needs replacing.

What size hot water system do I need?

A 1 to 2 person home suits 125 to 170 litres, 3 to 4 people suits 250 to 315 litres, and 5 or more suits 315 litres plus. Continuous flow is sized by flow rate.

Are there rebates for hot water systems?

Yes. Federal STCs and state rebates can significantly reduce the cost of heat pump and solar systems. We will tell you what your system qualifies for.

Should I switch from gas to a heat pump?

Heat pumps are far more efficient and rebate-friendly, so many homes save by switching. We can compare running costs for your situation.

Do you offer same-day hot water service?

Yes. We carry common parts and units and can usually repair or replace your system the same day across Brisbane, Perth and Adelaide.

Do you install a tempering valve?

Yes. A tempering valve is required on new installs to deliver water at a safe 50°C, and we fit or replace it as part of the job.

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Mat Williamson

We really appreciate the professional, courteous and friendly service. Thankyou

Richard Sk

Matt did amazing job and excellent service.

breanne shaw

Jack our plumber was great, really took the time to make sure everything was perfect. Came and connected our new fridge and then fixed our pressure issue at our new house. Would highly recommend

Smart Clean Corporation

Excellent and friendly

Anna . Nunn

Jordan is an amazing person he did an excellent job for my hot water service. The taps were leaking and he fixed the leaking taps. His service was very good.

Ellie D

Very pleased with the service I received by Dom, Diego and Jordan. Communication was excellent. The job was done extremely fast (same day as the quote was done), and the ceiling fans that were being installed look fantastic. I was especially impressed with Dom, who when faced with a obstacle during the install, he came up with a solution which allowed the job to go ahead. Highly recommend.