SA Gas Fitting Regulations: What Every Adelaide Homeowner Should Know

Published 29 April 2026 · Written by Sidney — Licensed Gas Fitter, Pilot Gas Adelaide · 9 min read

TL;DR: In South Australia, all gas fitting work on a domestic gas heater — installation, alteration, repair, and most servicing — must be done by a licensed gas fitter holding a PGE licence. The Office of the Technical Regulator (OTR) oversees compliance. DIY gas work is illegal. Every gas installation must have a compliance plate.

Who regulates gas in SA

Two bodies. Don't confuse them:

• Office of the Technical Regulator (OTR) — the technical authority. They set and enforce the Gas Act 1997 and the Gas Regulations 2012. They investigate gas incidents, audit compliance, and can prosecute unlicensed work. Their website is at energymining.sa.gov.au.
• Consumer and Business Services (CBS) — issues and manages the gas fitter licences. Their public register is where you check whether a fitter's actually licensed.

Both matter. The OTR's the one deciding whether a gas job was safe; CBS is the one deciding who's allowed to do it.

What counts as "gas fitting work"

Under SA law, "gas fitting work" is broadly anything involving the gas supply to or within an appliance. Specifically, it includes:

• Installing, replacing or relocating a gas appliance
• Connecting or disconnecting an appliance from the gas supply
• Any work on the gas pipework itself
• Commissioning a new installation
• Repair work that involves the gas path, burner, valve, heat exchanger, flue or safety controls
• Servicing that involves access to the burner and combustion components
• Most gas leak repairs

What's not classed as gas fitting work:

• Turning a heater on/off at the controls
• Replacing thermostat batteries
• Wiping the outside of the unit
• Vacuuming return air grilles on ducted systems
• Vacuuming accessible external dust from a heater (NOT opening the burner compartment)

Anything that involves opening the heater, touching the gas supply, or getting near the burner is gas fitting work. Full stop. See our DIY vs professional guide for where the line sits practically.

Licences: what "licensed gas fitter" actually means

In SA, gas work is performed by holders of a Plumbing, Gas fitting and Electrical (PGE) licence or contractor licence covering gas fitting. The licence types relevant to homeowners:

• Gas fitting licence — individual tradesperson qualified to perform gas fitting work
• Gas fitting contractor licence — the business that can contract for gas fitting work
• Gas fitting registration — typically someone working under supervision (e.g. an apprentice) — they can't independently sign off on work

A licensed gas fitter has:

• Completed a certificate III in plumbing services with the gas endorsement (Cert III — Gas Services)
• Held a supervised apprenticeship
• Passed licensing exams
• Maintained insurance (contractors)
• Kept up with continuing education on standards changes

Every fitter should be able to tell you their licence number on the spot. If they hesitate, that's your answer.

The gas compliance plate (this is the document that matters)

For most new installations or significant alterations, the gas fitter must attach a gas compliance plate (sometimes called a "Certificate of Compliance") to the installation and lodge a record with the OTR.

The plate includes:

• The fitter's name and licence number
• Date of installation
• Appliance type and rating
• Declaration that the work meets standards

Why this matters for you:

• It's your proof the work was done legally and to standard
• Your home and contents insurance often require it for gas-related claims
• If you sell the house, a compliance plate on the heater is a tick in the pre-sale inspection
• If anything goes wrong, it's the paper trail back to the responsible fitter

After a new gas heater install, ask for the compliance plate. Any legitimate fitter provides it without prompting. Don't pay the final invoice until you have it.

How to check a fitter's licence before booking

SA Consumer and Business Services maintains a public licence register. You can look up:

• Individual gas fitters by name or licence number
• Contractor businesses by ABN or name
• Current status of the licence (active, suspended, expired, cancelled)

Before booking any gas work, especially from a business you haven't used before:

1. Ask for the individual fitter's licence number (not just the business ABN)
2. Look it up on the register
3. Confirm it's current and covers gas fitting
4. Confirm the business has the matching contractor licence

Takes 60 seconds. Saves you from unlicensed "gas men" who flood the market every winter.

What you can legally do yourself

As a homeowner in SA, you are legally allowed to:

• Turn the gas off at the isolation valve (and you should know how)
• Operate the thermostat and controls
• Vacuum external grilles, filters, and the outside of the unit
• Clear leaves, bird nests and debris from outside the flue cowl
• Replace remote thermostat batteries
• Close and open room zones on zoned ducted systems

You are not legally allowed to:

• Open the burner compartment
• Adjust the gas valve or pressure
• Replace any gas-connected part (thermocouple, ignition electrode, burner, flame sensor, gas valve)
• Repair or alter the flue
• Connect, disconnect or relocate the appliance
• Work on the gas pipework, including the flexi hose
• "Just have a quick go" at anything you've seen a YouTube tutorial for

Important: If you do unlicensed gas work — even on your own home — and something goes wrong, your insurance will decline the claim, and you can be prosecuted. A house fire caused by unlicensed gas work is on you personally.

Fines and penalties

Under the SA Gas Act, penalties for unlicensed gas fitting work can include:

• Fines up to tens of thousands of dollars for individuals
• Higher fines for companies
• Criminal charges where the unlicensed work caused injury or death

The OTR regularly prosecutes unlicensed operators. Every winter we hear about "handyman" outfits getting nailed. Don't hire one, and definitely don't be one.

The standards gas fitters actually work to

The legal "how" of gas fitting in SA is defined by:

• Gas Act 1997 (SA) and Gas Regulations 2012 (SA) — the state law
• AS/NZS 5601 — the Australian standard for gas installations (the bible)
• AS 4575 — servicing Type A gas appliances
• AS/NZS 4913 — CO alarms
• Manufacturer installation manuals — binding on installation

If a fitter quotes you something that conflicts with AS/NZS 5601 (e.g. "nah, you don't need a flue cowl, she'll be right"), walk away. The standards are the standards for a reason.

How to report dodgy gas work

If you suspect unlicensed or unsafe gas work has been done on a property — yours, a rental, or a place you've bought:

1. Document what you found (photos of the installation, invoices, business cards)
2. Contact the Office of the Technical Regulator via their website or through SA Government contact
3. For dangerous situations, ring the emergency gas line 1800 427 532 first
4. Then book a licensed fitter to make the installation safe

The OTR takes reports seriously — they exist because unlicensed gas work kills people.

FAQ

Is a plumber allowed to service my gas heater?

Only if they hold a gas fitting endorsement on their licence. Plumbing and gas fitting are separate qualifications in SA, though many tradespeople hold both (hence "PGE" licences). Always ask for the gas licence number specifically.

Can the same fitter do my gas and hot water system?

Yes, if they hold plumbing and gas fitting on their licence. Most of us do.

Do I need permission to install a new gas heater?

You need a licensed fitter. They'll handle any notifications to the OTR and the gas distributor. You may need council approval depending on the install (new gas connection, significant structural work).

What if my rental has a dodgy gas heater?

Landlords are legally required to maintain gas appliances. Report the issue to the agent in writing, and if it's unsafe, contact the OTR. You can refuse to use a dangerous heater.

Are compliance plates required for every service?

No — compliance plates are for installations and major alterations. Routine servicing typically just gets a service sticker with date and fitter licence. Both are legitimate paperwork.