How to choose a licensed gasfitter in Australia
Gas work has a habit of getting lumped in with general plumbing, and while gasfitting and plumbing are closely related trades, they are not automatically the same licence in most of Australia. If a job involves connecting, repairing or altering anything on the gas side of a hot water system, cooktop, heater or gas line, the person doing it needs to be specifically licensed or endorsed for gasfitting, not just holding a general plumbing licence — and that distinction is worth understanding before you assume the plumber who fixed your leaking tap last month is automatically qualified for the gas job you need done now.
Gasfitting is a licensed trade in every Australian state and territory, and the standard entry qualification is a Certificate III in Plumbing, specialising in gasfitting. In New South Wales specifically, this distinction is written directly into the regulations — a plumbing licence does not by itself authorise gasfitting work under the Gas & Electricity (Consumer Safety) Act 2017, and a licensed plumber who has not completed the specific gasfitting endorsement is not legally permitted to work on a gas system, even if they are fully licensed for water and drainage work. In Victoria, plumbers and gasfitters are registered and licensed through the Building and Plumbing Commission, generally covering gasfitting as one of several distinct licence classes rather than an automatic extension of a general plumbing licence. In Western Australia, gasfitting work requires a licence issued by the Director of Energy Safety under the Gas Standards Act 1972, again a specific requirement separate from general plumbing. Queensland's QBCC similarly requires a licence holder to demonstrate the technical skills relevant to the specific scope of gasfitting work being carried out.
One of the clearest practical markers of a properly licensed gasfitter is what happens after the work is finished. For any regulated gas work, a licensed gasfitter is required to issue and lodge a gas compliance certificate, sometimes called a gas safety certificate, confirming the work meets the required safety standards. This is not paperwork for its own sake — it is the record that protects you if a problem arises later, whether that is an insurance question, a dispute over the work, or simply proof for a future buyer that gas work on the property was done properly and legally.
When choosing a gasfitter, a few direct questions make the biggest difference. Ask specifically whether they hold a gasfitting licence or endorsement, not just a general plumbing licence — the two are not interchangeable in most states, and a reputable tradesperson will answer this clearly rather than deflecting. Ask whether a gas compliance certificate will be issued and lodged once the work is finished, and confirm you will receive a copy for your own records. And check they carry appropriate insurance for gas work specifically, since the risks involved — and the potential cost if something goes wrong — are meaningfully different from general plumbing.
Gas leaks are one situation where speed and following the right steps matter more than finding the cheapest option. If you smell gas — often described as a distinctive rotten-egg odour added specifically so leaks are noticeable — the priority is safety, not diagnosis. Turn off the gas supply at the meter if it is safe to reach quickly, open doors and windows to ventilate the area, and avoid operating any electrical switches, lighters or naked flames anywhere near the smell, since even a small spark can be dangerous in a gas-affected space. Leave the property if the smell is strong, and call your state's gas emergency line or your gas distributor's emergency number rather than attempting to diagnose or fix the leak yourself — this is a job for emergency gas response, not a DIY inspection, and not something to wait on until a routine appointment is available.
This article is general information about how gasfitting licensing works in Australia, not a substitute for checking directly with your state's regulator or emergency gas provider. Our directory lists Australian plumbers and gasfitters by area, including licensing details where available, if you are ready to compare your options for a gas job.
Frequently asked questions
Not in most states. Gasfitting is generally a separate licence or endorsement from general plumbing — in NSW, for example, a plumbing licence does not by itself authorise gas work under the Gas & Electricity (Consumer Safety) Act 2017, and a specific gasfitting endorsement is required.
The standard entry qualification is a Certificate III in Plumbing, specialising in gasfitting, alongside the specific state licence or endorsement required to legally carry out gas work in that jurisdiction.
It is a certificate a licensed gasfitter must issue and lodge for regulated gas work, confirming the work meets required safety standards. It is an important record for insurance, future disputes, and proving to a future buyer that gas work was done legally.
Turn off the gas at the meter if safely reachable, ventilate the area by opening doors and windows, avoid switches or naked flames near the smell, leave the property if the smell is strong, and call your state's gas emergency line rather than attempting to fix it yourself.