Key Takeaways
- Any step that touches gas pipework, appliance connections or testing must be done by a licensed gas fitter, including disconnecting the old cooktop.
- A Certificate of Compliance proves the work was completed and tested properly, and your copy protects you if problems appear later.
- Flexible hoses are the most common defect found in Energy Safe Victoria’s gasfitter inspections, which is why a proper connection and leak test matter.
- You can prepare the appliance, gas type, benchtop cutout and power supply before installation day, but the gas work itself should never be a DIY job.
Swapping a gas cooktop can look like a weekend job: lift out the old one, drop in the new one and switch it on. The gas connection is the part that changes everything. In Victoria, anything involving gas pipework or appliance connections must be done by a licensed gas fitter, and the rules exist because gas mistakes are hard to see and easy to regret. This guide explains what a gas fitter must handle during a gas cooktop installation, what you can prepare yourself and how to check the work has been done properly.
What Counts as Gas Work When You Install a Gas Cooktop
Gas work covers far more than the final connection. Victorian plumbing regulation defines gasfitting work as the construction, installation, replacement, repair, alteration, maintenance, testing or commissioning of any pipe, appliance, fitting, control or other item involved with the supply or use of gas. A cooktop sits squarely inside that definition, and stoves fall under Type A gasfitting work.
In practical terms, if a step touches the gas supply, the connection to the appliance or the testing that proves the job is safe, it belongs to a licensed gas fitter. Cabinetry, benchtops and electrical work are separate trades. Knowing where that line sits helps you plan the job and avoids asking the wrong tradesperson to do work they are not licensed for.
It also explains why a handy friend or a general builder cannot take the job on, however simple the connection looks. Licensed plumbers and gas fitters are issued a photo ID card that lists the types of work they are authorised to carry out, so you can check that gas work is on it.
Gas Cooktop Installation Tasks That Must Be Done by a Licensed Gas Fitter
A licensed gas fitter is responsible for every step that touches the gas supply:
- Disconnecting the old cooktop and safely capping or isolating the gas outlet
- Checking, adjusting or relocating the gas supply point if the new cooktop sits in a different position
- Fitting an isolation valve and an approved connection between the supply and the appliance
- Confirming the cooktop is set up for your gas type, natural gas or LPG, and converting it where the manufacturer allows
- Leak testing every joint and connection once the work is finished
- Lighting each burner, checking the flame and confirming the flame failure devices work
- Issuing the Certificate of Compliance when the job is complete
Each step depends on the one before it. A connection that has not been tested has not been proven safe, and a sound connection on the wrong gas setting will still burn poorly. That chain is the reason gas work is not something to split between a handyperson and a fitter.
Energy Safe Victoria notes that standard installations are signed off with a Certificate of Compliance, while complex gas installations need an application to Energy Safe Victoria for processing and approval. A typical domestic cooktop swap usually sits in the standard category, but ask your fitter early if the job involves major pipework changes.
Why the Certificate of Compliance Protects You and Skipping It Is Never Worth It
When a licensed gas fitter completes a standard installation, the job is signed off with a Certificate of Compliance. Energy Safe Victoria notes that your copy protects you if problems arise later because of faulty installation, and that avoiding proper certification is illegal under the Building Act 1993.
The certificate records who carried out the work, their licence details, the address and what was installed. Keep it with the appliance manual, because it is evidence that the work was done by a licensed professional if you sell the property, need follow-up work or have to explain what was installed. Ask for your copy before the fitter leaves, and treat any offer of a cheaper price for “no paperwork” as a warning sign.
How Poorly Installed Gas Cooktops Go Wrong
Most gas installation problems are quiet at first. Energy Safe Victoria’s compliance inspections identified flexible hoses as the most frequent non-compliance issue, which shows how easy it is to get a simple-looking connection wrong. A hose that is the wrong type, poorly positioned or strained behind the appliance can leak or deteriorate. Joints that were never leak tested can seep gas for months. A wrong gas setting or poor burner adjustment can lead to lazy yellow flames and incomplete combustion.
Warning signs include a gas smell near the cooktop, burners that are slow to light, a hissing sound or soot marks on cookware. A gas smell should be treated as an emergency. Turn off the gas at the meter if it is safe to do so, avoid flames and electrical switches, open doors and windows and call your gas distributor. Prowater’s when to call emergency plumber guide covers gas smells in more detail. If you are not sure whether an older installation is sound, a professional inspection such as Gas Leak Detection Melbourne can find a leak before it becomes a hazard.
Cooktop connections can also loosen over time, for example when the appliance is knocked or pushed back into position, or when the cupboard below is packed tightly against the hose. If you ever feel unsure, stop using the cooktop, turn off the isolation valve under the bench if you can reach it safely and call a licensed fitter rather than waiting to see what happens.
Getting Your Kitchen Ready Before Installation Day
Preparation does not require a gas licence, and it helps the visit run smoothly. Before the fitter arrives:
- Choose an appliance certified to Australian standards, as domestic gas appliances must be certified or approved by Energy Safe Victoria, and cooktops made after 1 July 2017 must have flame failure devices on every burner
- Compare the gas type your home uses with the type the cooktop is supplied for, as listed in the manufacturer’s instructions
- Measure the benchtop cutout against the installation guide and confirm the required clearances to the splashback, cabinetry and range hood
- Check there is a power point within reach if the cooktop needs electrical ignition, and arrange a licensed electrician if a new one is required
- Clear the cupboard beneath and the surrounding bench so the fitter can reach the gas supply
Any changes to the cutout belong to a joiner or stonemason, not your gas fitter, so book those first. It also helps to send the cooktop’s model number or installation manual to the fitter in advance. That lets them check the gas type, connection position and clearances before they arrive, and tell you if anything needs to change.
Replacing an Old Cooktop or Adding a New Gas Connection in Victoria
A like-for-like replacement is usually the simpler job, because the gas point, pipework and ventilation are already in place. Even so, the fitter still needs to confirm the existing supply suits the new appliance. If the new cooktop sits in a different position, the pipework may need to move. Established homes in Melbourne’s east often have older gas pipework and tight cutouts, which can complicate a swap that looked simple on paper. A fitter will assess the existing supply and layout, and recommend changes only where the old arrangement does not suit the new appliance.
Adding gas where none exists is a different story, and the rules have changed. From 1 January 2024, new homes that need a planning permit generally cannot connect to reticulated natural gas. Existing homes with gas, renovations and extensions are not affected. If you are building or planning a major renovation, check your permit conditions with your builder or council before you buy a gas appliance.
The same licensing standard applies to every gas appliance in the house. If you are weighing up gas hot water vs electric hot water while the kitchen is being renovated, Water Heater Installation Melbourne is carried out by licensed plumbers. For an existing gas system that is misbehaving, the hot water repairs guide explains when a plumber or licensed gas fitter should assess it.
Planning a Gas Cooktop Install? Here Is How to Get It Done Safely, Legally and Without Surprises
Before you book, check three things. Ask to see the fitter’s photo ID card, which lists the type of work they are licensed to do and can be requested at any time. Ask for a quote that covers the connection, testing and the Certificate of Compliance. Then confirm the appliance and gas type match before installation day, so the visit is not wasted on a cooktop that cannot be connected.
Once the work is done, check you have your certificate, keep the manual and note the date of installation. If anything smells or behaves differently in the weeks afterwards, call the fitter back rather than waiting. Prowater Plumbing’s licensed gas fitter team handles gas cooktop installation across Melbourne’s eastern suburbs, from disconnecting the old unit through to final leak testing and compliance paperwork.