Gas Hot Water Heater

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Licensed gas hot water plumbers across Brisbane, Perth & Adelaide

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4.6 · 2,000+ Google reviews

Gas hot water is efficient and economical, giving you fast, reliable hot water. Our licensed plumbers and gas fitters install, repair and replace gas storage and continuous flow systems.

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

Why choose Same Day Trades for gas hot water?

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.

However, if you want to learn more about our work, check out the Same Day Trades website for information on prices and packages. Other than that, don’t forget to check out the testimonials from our 500+ loyal customers, who continue to rely on us for top-quality services.

Why choose a gas hot water system?

If you have a gas connection, gas hot water is often the most cost-effective choice, because gas is generally cheaper to run than standard electric. Gas systems also heat water quickly and recover fast, so you are less likely to run out, and they keep working during a power outage (for storage models with a standing pilot). Gas comes in two main forms, storage and continuous flow, each with its own strengths. Whether you are replacing an old gas unit, switching from electric to save on running costs, or installing gas hot water in a new home, we supply, install, repair and service gas systems across Brisbane, Perth and Adelaide.

Gas storage vs continuous flow

Gas hot water comes in two types, and the right one depends on how your household uses hot water:

Gas storage keeps a tank of hot water heated and ready, recovers quickly, and suits homes with heavy simultaneous demand, though the tank loses some standby heat
Continuous flow (instantaneous) heats water only as you use it, so you never run out, there is no standby loss, and the compact unit mounts on a wall to save space

Continuous flow is more efficient for most homes and increasingly popular, while storage can suit very high peak demand. We help you choose the right type and size.

Continuous flow gas hot water

Continuous flow, also called instantaneous or tankless gas hot water, heats water on demand as it passes through the unit, rather than storing it. The benefits are significant: you never run out of hot water, there is no standby heat loss from a tank sitting hot all day, and the compact wall-mounted unit frees up space. Continuous flow units also let you set a precise temperature. They are an efficient, popular choice for homes of most sizes, sized by flow rate based on how many outlets you run at once. For very large simultaneous demand, a higher-capacity unit or more than one may be needed, and we will size it correctly for your home.

Gas storage hot water

Gas storage systems heat and hold a tank of hot water ready for use, and recover quickly once the tank is drawn down, which makes them well suited to households that use a lot of hot water at once. They are simple and reliable, and many models with a standing pilot keep working during a power outage. The trade-off is some standby heat loss, as the tank keeps the water hot even when you are not using it, and the tank takes up more space than a continuous flow unit. We install and replace gas storage systems in the right size for your household, so you have plenty of hot water without paying to heat more than you need.

Running costs and efficiency

Gas hot water is usually cheaper to run than standard electric storage, which is a major reason households with a gas connection choose it. Continuous flow gas is more efficient again than gas storage, because it avoids standby heat loss, heating water only when you need it. Modern gas units carry energy ratings that indicate efficiency, and a well-sized, efficient unit keeps your running costs low. Over the life of the system, those savings add up. If you are weighing gas against electric, a heat pump or solar, we can explain the running costs of each honestly, so you choose the system that gives you the best value for your home and usage.

Choosing the right size

Sizing a gas system correctly means you never run out of hot water and never pay for more capacity than you need. For gas storage, size is measured in litres, and depends on household size and peak demand, a larger family that showers back to back needs a bigger tank. For continuous flow, size is measured by flow rate (litres per minute), based on how many hot water outlets you run at the same time, a larger household running multiple showers at once needs a higher flow rate. We assess your household size and usage on site and recommend the right capacity, so your gas hot water comfortably meets your needs.

Common gas hot water problems we fix

We repair all common gas hot water faults, including:

No hot water, often a pilot that has gone out, a faulty thermocouple, or an ignition fault
Water not hot enough, usually a thermostat or gas supply issue
The pilot light will not stay lit
Leaks from valves, connections or the tank
Error codes on continuous flow units
Fluctuating water temperature

We diagnose the real cause and carry out the repair, or advise replacement if the system is old or the tank has failed, always with an upfront price before we start.

Pilot light and ignition problems

A very common gas hot water fault is the pilot light going out or failing to stay lit, which leaves you with no hot water. The cause is often a faulty thermocouple, the safety device that senses the pilot flame and shuts off the gas if it goes out, or a dirty or faulty pilot assembly. On modern continuous flow units, electronic ignition can fail instead. While relighting a pilot is sometimes straightforward, a pilot that keeps going out points to a fault that needs fixing, and anything involving the gas components should be handled by a licensed professional. We diagnose and repair pilot, thermocouple and ignition faults so your gas hot water lights reliably again.

Repair or replace your gas system?

Whether to repair or replace depends on the age of the system and the fault. If your gas unit is under about 8 to 10 years old and the problem is a repairable part, a thermocouple, valve, thermostat or ignition component, a repair is usually the best value. Once a system is older, leaking from the tank, or needing repeated repairs, replacement is the smarter choice, and the opportunity to move to an efficient continuous flow unit. We give you an honest assessment and a price for both repair and replacement, so you can decide, rather than pouring money into an old system that is near the end of its life.

Switching from electric to gas

Replacing your hot water system is the ideal time to consider switching from electric to gas to cut your running costs, if you have a gas connection. Gas is generally cheaper to run than standard electric storage, and continuous flow gas gives you endless hot water on demand. Switching does involve extra work, running a gas line to the unit if one is not already there, so it costs more up front than a like-for-like swap, but the long-term running savings often justify it. We can assess whether switching to gas makes sense for your home, explain the upfront cost and the ongoing savings, and handle the whole changeover.

Licensed gas installation and safety

Gas hot water installation and repair must be carried out by a licensed gas fitter, because it involves gas connections where mistakes can cause leaks, fire or carbon monoxide risks. Using a licensed professional keeps your manufacturer warranty valid, ensures the work meets Australian Standards, and means the installation is safe and comes with the required compliance certification. Every new installation also needs a compliant tempering valve to deliver water to your bathroom at a safe 50 degrees, plus the correct relief valves. We are fully licensed for gas work and fit all the required safety components as standard.

How much does gas hot water cost?

The cost depends on the type and size of system and the complexity of the installation. As a general guide, installed gas systems, storage or continuous flow, usually run around $1,200 to $3,500, with continuous flow at the higher end for larger units. Switching from electric to gas adds the cost of running a gas line. Repairs are far cheaper than replacement, with a valve, thermocouple or thermostat fix being an affordable job. Rather than guess, we give you an upfront fixed price before any work starts, whether it is a repair, a like-for-like replacement, or a switch to gas, so you know the cost in advance.

Same-day gas hot water service

No hot water is miserable, especially in winter, so we treat gas hot water faults and replacements as a priority. Our phones are answered around the clock, and we can usually get a licensed plumber and gas fitter to you the same day across Brisbane, Perth and Adelaide. We carry common gas systems and parts, so many repairs are done on the spot, and where a replacement is needed we can often supply and install the same day. We will diagnose the fault, give you an upfront price for the repair or replacement, and get your gas hot water working again fast.

Licensed, guaranteed gas plumbers

Gas hot water work is licensed work involving gas and water, so it is never a DIY job, and doing it incorrectly is unsafe and voids your warranty. Our licensed plumbers and gas fitters install, repair and replace gas storage and continuous flow systems to Australian Standards, fit the required safety and tempering valves, and provide compliance certification. You get honest advice on repair versus replacement and the right system, upfront fixed pricing, same-day service where we can, and workmanship we stand behind. For a plumber near you for gas hot water, we cover Brisbane, Perth and Adelaide.

Gas hot water FAQs

Is gas hot water cheaper to run than electric?

Usually, yes, where you have a gas connection. Gas storage and continuous flow both cost less to run than standard electric storage.

What is the difference between gas storage and continuous flow?

Storage heats and holds water in a tank; continuous flow heats on demand so you never run out and it saves space. We install both.

Why is my gas hot water not working?

Common causes are a pilot or ignition fault, a failed thermostat or valve, or no gas supply. Many of these are repairable, and we can diagnose it quickly.

Does gas hot water work in a power outage?

Many gas systems keep working in a blackout, though some continuous-flow units need power for ignition. We can advise on your model.

Can you repair my gas hot water system?

Often, yes. Pilot, valve and thermostat faults are repairable. If the tank is leaking or the unit is old, replacement is the better value.

How much does a gas hot water system cost?

As a guide, gas storage runs $1,200 to $3,500 installed and continuous flow $1,500 to $3,000. We provide an upfront fixed quote.

Do I need a licensed gas fitter?

Yes. Gas hot water work must be done by a licensed plumber and gas fitter for safety and to keep your warranty valid.

Do you offer same-day service?

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

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Grace Vinci

I had my Safety switch/ circuit breakers replaced by Jesse. He was helpful, polite and thorough, explained and shown me what needed to be done. He was informative also explained all options available to me giving me a choice, which I appreciated. Before leaving Jesse also made sure everything was in working order before leaving the premises.

Mick Webster

Robert Green

Coda, Kosta and brad excellent service by all.

Joy Bailey

Michael did a great job for us, and was super courteous and friendly. Very satisfied! Thank you!

Kathryn Fischer

Thank you for your help and advice with our aircon.

Patricia Howard

Bradley was very accomodating and clearly explained to me what may happen in the future . I trusted him straight away and will definitely use him again I actually joined up on a monthly scheme once he explained the benefits to me.