By Greg Allan, tradesman and creator of Data First Coaching
What licence does a gasfitting business need in Australia?
Every state and territory in Australia requires a licence or permit before any gasfitting work can be done legally, whether it's connecting a cooktop, running a new gas line or signing off a compliance certificate. The regulator and the licence classes differ depending on where the business operates, so a gasfitter working across a state border needs to check both.
Some examples of how this plays out:
- In NSW, Fair Trading requires a licence or certificate for any plumbing, draining or gasfitting work regardless of the size of the job, with separate licence types for individuals, companies and supervisors, and the NSW gasfitter compliance page sets out the wider obligations.
- In Victoria, Energy Safe Victoria regulates safety while the Victorian Building Authority runs licensing, and the VBA defines gasfitting work as covering installation, replacement, repair, alteration, maintenance, testing and commissioning of gas pipes, appliances and flues.
- In Queensland, the QBCC requires a contractor licence to perform the work, and a separate occupational licence issued by the Chief Gas Examiner to actually supervise or carry out gasfitting.
- In WA, Building and Energy requires gas-related work to meet state gas standards, and the gasfitting permit page sets out separate permit classes for general gasfitting, LPG and other specialist gas work.
- In SA, SafeWork SA issues a gas fitting permit, with a further licence needed for larger LPG or CNG work on stationary engines.
- In Tasmania, CBOS requires a contractor licence to sell gas-fitting services, with a nominated manager who must hold the matching licence.
- In the Northern Territory, NT WorkSafe issues provisional and general gasfitter licences.
- In the ACT, ACT Planning requires plumbers, drainers and gasfitters, including medical gas technicians, to hold a licence, with separate classes covering different scopes of work.
Does the licence change with the type of gas work?
Yes. Most regulators split gasfitting into classes depending on whether the work is natural gas or LPG, domestic or commercial, or involves higher-pressure systems, and a gasfitter needs to hold the right class for the job in front of them.
WA's gasfitting permit classes separate general gasfitting from other specialist categories. NSW has a separate licence for medical gas and mechanical services work on top of the standard gasfitting licence. SA's SafeWork SA permit covers LPG and CNG gas fitting but flags a further licence for larger stationary engine work. The ACT's construction licences page lists separate gasfitter classes for different scopes of supervised and unsupervised work. None of this is a job for memory. The right class depends on the appliance, the pressure and the fuel, so it is worth checking the regulator for the state the work is actually in before quoting it.
Why does being licensed not guarantee the compliance certificate pays its way?
A licence gets the gasfitter in the door. It does not tell the business whether the compliance certificate, the pressure test or the servicing callout that came through that door actually made money once materials, travel and the time spent writing up the paperwork are counted.
Most gasfitting businesses quote compliance and servicing work at a price that looks fine on the page. The leak detection job, the hot water unit swap, the flue check before a sale, the safety check on an ageing heater, all read as good margin work because the licence lets a gasfitter charge for expertise most people cannot supply themselves. What often gets missed is the time spent on the paperwork that comes with the licence: writing the certificate, logging the test result, chasing a signature. That time rarely gets billed properly, and it quietly eats the margin the quote assumed was there.
What number actually tells a gasfitter whether a compliance job made money?
The number that tells the truth is the gross profit margin on that type of job, tracked job by job rather than guessed at from the quote. Memory says a compliance certificate run is profitable because the invoice looks healthy. The data first says to look at what was actually spent on labour, materials and travel against what was actually collected, because that is the only version that is not out of date the moment the job finishes.
Picture a gasfitter who quotes appliance installs and compliance work between callouts, on the run, often from the cab of the van. With so many small parts on a typical job, a bayonet fitting, a length of flexible hose, the fee for the test gauge, it is easy for one to drop off the quote and then be missing once the gasfitter is on site. A quoting checklist built for each job type, covering every material down to the small fittings, closes that gap without relying on memory every time.
How can AI agents help a gasfitter keep licence work and job costs straight?
An AI agent is software that does a job the way the owner would do it, using their own prices, their own wording and their own rules. For a gasfitting business, that can mean an agent that checks every quote against a job type checklist, tracks materials and time against the compliance certificates and pressure tests actually billed, and keeps that record current without anyone chasing paperwork at the end of the month.
This matters because the office work that sits behind a licence, the certificate records, the test logs, the job costing, is non-billable but still has to happen. When an AI agent carries that load the owner's way, the time that used to go on paperwork goes back onto the tools, the crew and the customer, and the gasfitter still sees, job by job, whether the licensed work is actually paying for itself.
This is general information, not legal, tax or employment advice. Check your own situation with the body named here or a qualified adviser.
Where can you check the current rules?
- NSW gasfitter compliance and regulatory obligations - general licensing and safety obligations for NSW gasfitters.
- NSW Fair Trading plumbing, draining and gasfitting licences - licence types and categories in NSW.
- Energy Safe Victoria, gasfitters - safety regulation and the licensing relationship with the VBA.
- VBA gasfitting work - what counts as gasfitting work in Victoria.
- QBCC gasfitting licence - contractor and occupational licence requirements in Queensland.
- WA Building and Energy, information for gas licence holders - obligations for licensed gasfitters in WA.
- WA gasfitting permit - permit classes for gas work in WA.
- SafeWork SA, gas fitting permit - permit requirements and standards for gas fitting in SA.
- CBOS Tasmania, gas-fitting contractor licence - contractor licence requirements in Tasmania.
- NT WorkSafe, gasfitters - licence classes for gasfitting in the Northern Territory.
- ACT Planning, construction licences - licence classes for plumbers, drainers and gasfitters in the ACT.
How does Data First Coaching approach this?
Data First Coaching, built by Greg Allan, starts from the gasfitter's own job and finance data through the Trade Business Intelligence rather than from a list of licences. The licence question is usually the easy part. What matters more is whether the certificates, pressure tests and servicing work that licence allows are actually paying their way once materials, time and slow-paying customers are accounted for. Greg has said of his own trade business, “I kept working hard and overcame those challenges and created systems and solutions”, and that is where the real work starts: not the qualification, but what happens to the money after. The how of building that system is worked through inside the Academy, with members, because the Trade Business Intelligence is powered by every member who is open minded, innovative and willing to share.
