Article written by David MacKenzie, 28th April 2026
Gas plumbing is a key part of maintaining a safe and functional home – and it’s not just a case of calling up a handyman to sort it out when something goes wrong.
Whether you’ve got a natural gas or LPG system, proper installation, servicing, and repairs are a must to ensure your gas appliances are working efficiently and safely.
In this article, David MacKenzie, owner of DMACK plumbing & Gas, answers some of the most common questions homeowners ask about gas plumbing, when to call in a professional gas plumber, and the most common problems that can arise.
What is Gas Plumbing & What Does a Gas Plumber Actually Do?
Gas plumbing is all about the installation, maintenance and repair of gas appliances and the gas lines that supply them.
A gas plumber is a tradesperson who specialises in the safe installation, servicing and repair of gas appliances like cooktops, heaters, hot water systems, BBQs and your gas meter.
And they’re not just plumbers either. Gas plumbers have to undergo special training and get licensed to work on gas systems.
Typically, a gas plumber’s job will involve installing new gas lines, replacing faulty components, or detecting gas leaks. We also have to make sure that all gas installations comply with Australian safety standards and regulations, which vary depending on whether you’re using natural gas or LPG.
Gas plumbing installations in Australia must comply with the AS/NZS 5601.1:2022 standard for gas installations, which ensures the safety and regulation of gas work. You can find more details on the official standards site here: AS/NZS 5601.1:2022 Gas Installations.
What’s the Difference Between a Plumber, Gasfitter and Gas Plumber in Australia?
In Australia, a plumber is qualified to work on general water and drainage systems. A gasfitter is a tradesperson specifically trained to work on gas systems. But a gas plumber, or licenced gasfitter, is someone who’s gone the extra mile to get certified to work on gas appliances and piping. It’s a specialisation within the trade.
What Kinds of Appliances and Systems Are Covered by Gas Plumbing?
Gas plumbing covers a fair bit – including:
- Cooktops and Ovens: Getting your kitchen appliances connected to the gas supply.
- Heaters: Installing and maintaining gas heating systems so you never feel the chill.
- Hot Water Systems: Gas-powered water heaters for a consistent supply of hot water.
- BBQs: Ensuring that your outdoor cooking system is safely connected and installed.
- Gas Lines and Meters: Repairing and installing gas pipelines, meters and regulators.
What’s the Difference Between Natural Gas and LPG in Terms of Plumbing and Installation?
Natural gas and LPG (liquefied petroleum gas) are both commonly used for home appliances, but they’re delivered and stored differently. Natural gas comes through the pipes, while LPG is stored in cylinders or tanks. This means they need slightly different fittings, connections and installation processes.
Who is Responsible for Gas Pipes: The Gas Company vs The Homeowner/Landlord?
Typically, the gas company is responsible for the gas meter and the gas lines that run from the street to the meter. Homeowners or landlords are responsible for maintaining the gas lines from the meter into the house, including any repairs or modifications. This includes making sure that all gas appliances are properly installed and in good working order.
What Are the Legal Requirements for Gas Work in Australia?
In Australia, all gas work has to be carried out by a licensed gasfitter who’s got the right certifications – and even then, there are all sorts of strict legal requirements they have to meet. Gasfitting involves getting compliance certificates for installations and repairs to ensure that all gas work is carried out safely, which is a big priority, especially when it comes to preventing gas leaks or carbon monoxide poisoning.
What Does a Standard Gas Safety Check Involve?
A standard gas safety check is a pretty straightforward process that involves checking your gas appliances for signs of wear and tear, looking for leaks in your gas lines, and making sure that there’s proper ventilation around your appliances. It’s generally recommended to have a gas safety check done every year to stop potential issues from arising.
When Should You Call a Gas Plumber vs. Doing It Yourself?
No matter how handy you are with DIY projects, it’s a really bad idea to try and install or repair gas appliances yourself. Even if you’ve got the right tools and knowledge, gas plumbing requires a level of specialisation that’s hard to match.
Always call a licensed gas plumber if you need to install, repair or disconnect gas appliances or gas lines.
Some Common Gas Plumbing Issues
- Gas Leaks: Corrosion, damage or just generally loose joints in your gas pipes can cause leaks – which can be really dodgy.
- Pilot Light Issues: If your appliances like gas heaters won’t stay lit, it might be a blocked burner or a dodgy thermocouple.
- Gas Heater or Hot Water Issues: If your heating system or hot water is playing up, it might be a problem with the gas line or appliance.
- Higher Gas Bills: A sudden spike in your gas usage could be a leak, appliance malfunction or a problem in the gas system.
Warning Signs of Gas Plumbing Problems
- Smell of Gas: If you can smell gas you should turn off the supply immediately and call a professional.
- Hissing Sounds: A hissing sound near gas lines or appliances could be a leak.
- Higher Bills: A sudden jump in your gas usage might suggest an underlying problem in your gas system – like a leak or faulty appliance.* Carbon Monoxide Poisoning: Some of the symptoms you might experience include headaches, feeling a bit woozy and dizziness, and a nasty stomach-churning feeling – and these could be warning signs that there’s a problem with your gas appliances.
What to Do if You Catch a Whiff of Gas?
If you notice you can smell gas inside or outside your house, then get out of there – fast.
- Clear the area as quickly as possible.
- Don’t go reaching for light switches, your phone or a lighter – these can all ignite the gas.
- Dial the emergency number straight away and get a professional in to sort out the problem.
Costs, Repairs and Replacing the Gas Pipes
Fixing your gas plumbing can be pretty pricey, depending on the nature of the problem. A small leak might only require a minor fix, and that will likely be cheaper. But if you need to replace your gas line or it’s a more complex issue, then it could end up being a lot more expensive. Before you go ahead, it’s a good idea to get a quote so you know what you’re looking at. And if you’re not sure whether to fix it or rip it out and start again, then have a chat to your plumber and see what they think is the best way to go.
The Bottom Line
Gas plumbing is crucial for getting your gas-powered appliances up and running safely in your home.
Whether it’s making sure they’re all installed correctly and getting regular maintenance done, or knowing when to call in a pro to sort out a problem, gas plumbing is an important part of keeping your home safe.
If you suspect a leak or spot a problem with your gas, then don’t hang about – get on the phone to DMACK, and we’ll get it sorted before it gets out of hand.
Do I need a licensed gas plumber to install or repair gas appliances?
Yes. In Australia, all gas work must be carried out by a licensed gasfitter or gas plumber. This includes installing, repairing, disconnecting or modifying gas appliances and gas lines. Licensed professionals are trained to ensure the work complies with safety regulations and reduces the risk of gas leaks or carbon monoxide exposure.
How often should gas appliances be serviced or checked?
Most gas appliances should be inspected and serviced at least once every 12 months. Regular servicing helps identify wear and tear, detect leaks early and ensure appliances are operating safely and efficiently. Annual gas safety checks are particularly important for heaters and hot water systems that are used frequently.
What are the warning signs of a gas leak in my home?
Common signs of a gas leak include the smell of gas, hissing sounds near gas pipes or appliances, unusually high gas bills, or symptoms such as headaches, dizziness or nausea. If you suspect a gas leak, turn off the gas supply if it is safe to do so, leave the area immediately and contact a licensed gas plumber or emergency service.
Who is responsible for gas pipes on a property in Australia?
Generally, the gas company is responsible for the gas meter and the supply line up to the meter. Homeowners or landlords are responsible for maintaining the gas pipes and appliances within the property boundary. This includes arranging repairs, maintenance and ensuring the system remains safe and compliant with relevant regulations.
Can I fix a gas problem myself if it seems minor?
No. Gas work should never be attempted as a DIY task, even if the issue appears minor. Working with gas systems without the proper licensing and equipment can be dangerous and may breach Australian safety laws. Always contact a licensed gas plumber to assess and repair the problem safely.
