Leaking Drain Under Basin Or Sink
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We can all agree that a leaking drain under basin or sink is one of the most common household plumbing issues. Kitchen and bathroom sinks,
Hot Water Heater Replacement
G★★★★★
4.6 · 2,000+ Google reviews
4.6 · 2,000+ Google reviews
When your hot water heater fails or starts leaking, you need it replaced fast and done right. Our licensed plumbers remove your old unit and install a reliable new system, electric, gas, heat pump or solar, often the same day.
You get an upfront fixed price, a compliant install, and hot water back on across Brisbane, Perth and Adelaide.
Why choose Same Day Trades for hot water replacement?
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.
Signs your hot water system needs replacing
Most hot water systems last 8 to 12 years, and once they reach the end of their life it is usually cheaper to replace than to keep repairing. Watch for these warning signs:
- Water that runs cold quickly or never gets hot enough
- Rusty, discoloured or metallic-tasting hot water
- Leaks, pooling water or corrosion around the tank
- Banging, rumbling or popping noises from the unit
- Rising energy bills, or a unit more than 10 years old
If your tank is leaking from the body itself, it cannot be reliably repaired and needs replacing. If you have no hot water at all, we offer same-day replacement across Brisbane, Perth and Adelaide.
Repair or replace: which is right?
Not every hot water fault means a new system. If your unit is under 8 to 10 years old and the problem is a minor part, such as a heating element, thermostat, valve or pilot, a repair is usually the best value. Once a system is older, leaking from the tank, or needing repeated repairs, replacement is the smarter long-term choice.
Replacing is also the ideal time to move to a more efficient system that costs far less to run. Our plumber will give you an honest assessment and a price for both repair and replacement, so you can make the call with all the facts.
Types of hot water systems we install
We supply and install every main type of hot water system, and help you pick the best value for your home and energy connection:
- Electric storage, the cheapest to buy and simple to install
- 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 hot water, the lowest running costs of all
The right choice depends on your household size, your energy connection and your budget, and we will walk you through the options.
Electric and gas hot water
Electric storage systems are the most affordable to buy and work anywhere there is power, though they cost more to run than gas or heat pump. Many run on a cheaper off-peak tariff overnight to keep costs down.
Gas systems cost less to run if you have a gas connection. Gas storage keeps a tank of hot water ready, while continuous flow (instantaneous) gas heats water on demand, so you never run out and it saves space with a compact wall-mounted unit. We install, repair and replace both.
Heat pump and solar hot water
Heat pump systems use electricity to move heat from the air into your water, using up to 70% less energy than a standard electric system. They cost more up front but are usually eligible for government rebates that close much of the gap, and they slash running costs.
Solar hot water uses roof collectors to heat your water from the sun, with an electric or gas booster for cloudy days. It has the lowest running costs of any system and also attracts rebates. Both are excellent long-term choices, and we will tell you which suits your roof, climate and household.
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 you run at once. Our plumber will confirm the right size for your household so your new system fits how you actually live.
How much does hot water replacement cost?
Cost depends mainly on the type and size of system. As a general guide, installed prices in Australia usually fall around:
- Electric storage: $800 to $2,500
- Gas storage or continuous flow: $1,200 to $3,500
- Heat pump: $3,000 to $6,000 (before rebates)
- Solar: $3,500 to $7,000 (before rebates)
Extra work such as a switchboard upgrade, relocating the unit, or changing fuel type can add to the price. Rather than guess, we give you an upfront fixed quote before any work starts.
Rebates and running costs
Running costs vary widely by system. Heat pump and solar cost the least to run, gas sits in the middle, and electric storage is the most expensive. Over the life of a system, that difference adds up to thousands of dollars.
Government rebates can take hundreds or over a thousand dollars off an efficient heat pump or solar system through federal small-scale technology certificates (STCs) and various state schemes. We will let you know exactly which rebates your chosen system qualifies for and apply them where we can, so you get the real, discounted price up front.
The hot water replacement process
We keep replacement day simple and tidy:
- Assessment, we confirm the best system type and size for your home
- Removal, we drain, disconnect and remove your old unit
- Installation, we mount 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 take the old unit away, leaving you with hot water and no mess.
Same-day hot water replacement
No hot water is an emergency, especially in the colder months. We carry the most common electric, gas and continuous flow systems, so we can often supply and install a replacement 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 we start.
Licensed installation and tempering valves
Hot water installation 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, ensures the job meets Australian Standards, and makes sure the safety valves are fitted correctly.
Every new installation also needs a compliant tempering valve to deliver water to your bathroom at a safe 50 degrees. We fit or replace it as part of the job, so your installation is safe and fully compliant.
Continuous flow vs storage hot water
If you are choosing a gas system, the decision usually comes down to continuous flow versus storage. Storage keeps a tank of hot water ready to go, which is great for households that use a lot of hot water at once, but the tank loses some heat standing by and can run out during back-to-back showers. Continuous flow, also called instantaneous, heats water only as you use it, so you never run out and there is no standby heat loss, making it more efficient for most homes. Continuous flow units are also compact and wall-mounted, freeing up space. For very high simultaneous demand, a larger storage tank or a high-capacity continuous flow unit is the answer, and we will help you match the system to your usage.
Warranties on your new hot water system
Every system we install comes with the manufacturer warranty, which varies by type and brand. Storage tanks typically carry a cylinder warranty of 5 to 10 years, continuous flow units are often warranted for around 10 to 12 years, and heat pumps and solar systems usually come with multi-year warranties on the key components. Crucially, these warranties are only valid when the system is installed by a licensed plumber or gas fitter to the manufacturer specifications, which is exactly what we do. We also back our own workmanship, so if anything is not right with the installation, we will put it right. Keep your paperwork, and we will register the warranty details for you on the day.
What to do when your hot water fails
If you suddenly have no hot water, a few quick checks can help before you call. For an electric system, check whether the circuit breaker or the off-peak supply has tripped, and whether the isolation switch is on. For a gas system, check that the pilot is lit and the gas is on. If the tank is leaking from the body, turn off the water supply to it and give us a call, as a leaking tank cannot be repaired. Never attempt electrical or gas work yourself. If these checks do not restore hot water, the unit likely needs a repair or replacement, and we can usually attend the same day to get your hot water back on.
Why choose Same Day Trades for hot water
We replace hot water systems every day, so you get fast, reliable service from licensed plumbers who know every system type and brand. You get honest advice on repair versus replacement, help choosing the most efficient system for your home, upfront fixed pricing, and same-day service wherever we can. We handle the rebates, the compliance and the clean-up, and stand behind our workmanship. Compare your options on our hot water systems page, or call us for a quote.
Hot water replacement FAQs
How much does it cost to replace a hot water system?
As a guide, electric storage runs $800 to $2,500 installed, gas $1,200 to $3,500, heat pump $3,000 to $6,000 and solar $3,500 to $7,000 before rebates. We give you an upfront fixed price.
How long does a hot water replacement take?
A like-for-like replacement usually takes two to four hours. Changing fuel type or relocating the unit takes longer, and we let you know when we quote.
Can you replace my hot water system the same day?
Yes, in most cases. We carry common units and can often supply and install a replacement the same day across Brisbane, Perth and Adelaide.
Should I switch to a heat pump?
Heat pumps use up to 70% less energy than electric storage and are often rebate-eligible, so they cost less to run. The upfront price is higher, and we can tell you if the savings stack up for your home.
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. Our plumber confirms the right size on site.
Are there rebates for hot water systems?
Yes. Federal STCs and various state rebates can reduce the cost of heat pump and solar systems. We will let you know what your chosen system qualifies for.
Do you install a tempering valve too?
Yes. A tempering valve is required on new installs to deliver water at a safe 50°C. We fit or replace it as part of the job.
Do you remove the old unit?
Yes, we remove and dispose of your old system as part of the replacement. Just let us know when you book.
Pipe Repairs
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What our customers say?
Why choose us?
Trusted Tradesmen
With hundreds of 5 star reviews, we’re the local tradesmen you can trust.
Transparent Pricing
We make sure you know exactly what you are paying for ahead of time.
Licensed And Insured
You’re in safe hands as our tradesmen are fully licensed and insured to do your job.
Workmanship Guarantee
Our work will be free of defects in workmanship and workmanship will be warranted for life.
Convenient Bookings
We offer convenient booking times that can be worked around your schedule.
Available All Hours
We take calls 24 hours a day and 365 days a year so that we’re always available to be of service.
Trusted Tradesmen
With hundreds of 5 star reviews, we’re the local tradesmen you can trust.
Transparent Pricing
We make sure you know exactly what you are paying for ahead of time.
Licensed And Insured
You’re in safe hands as our tradesmen are fully licensed and insured to do your job.
Workmanship Guarantee
Our work will be free of defects in workmanship and workmanship will be warranted for life.
Convenient Bookings
We offer convenient booking times that can be worked around your schedule.
Available All Hours
We take calls 24 hours a day and 365 days a year so that we’re always available to be of service.