The short answer
Allow $180–$380 to connect a compatible gas cooktop or oven at an existing point, or $250–$600 for a minor accessible gas leak investigation and repair. These indicative bands include GST and were checked on 21 October 2026; appliances and new gas lines are separate.
Costs at a glance
AUD · including GSTIndicative budgets for the scope below, checked 21 October 2026. Confirm the total and any additional work before proceeding.
Gas cooktop or oven connection
$180–$380per job
Connection at a compatible existing gas point, testing and compliance documentation.
Allow separately: the appliance, new gas lines, cabinetry and electrical work.
Gas leak detection and repair
$250–$600per job
Locating and repairing a minor accessible gas leak, then testing.
Allow separately: major pipe replacement, difficult access and after-hours attendance.
Gas hot water system (storage or continuous flow), supplied and installed
$2,000–$3,400per job
The unit, gas and water connections, removal of the old one, the tempering valve and certificates.
Allow separately: relocation, major pipe or electrical upgrades and difficult access.
An existing gas point is the starting assumption
A straightforward connection assumes the new appliance suits the gas type, existing supply, location and installation requirements. The gas fitter still needs to check the setup, make the connection, test it and provide the applicable compliance documentation.
Panther’s gas plumbing service covers gas-fitting work such as connections, pipework and leak investigation. Send the appliance model before buying or booking if you are unsure whether it suits the existing installation.
What is outside a standard connection price?
| Additional work | Why it needs its own scope |
|---|---|
| A new or larger gas line | Length, route, capacity and access differ between properties |
| Appliance conversion | The appliance and gas type must be compatible; parts may be model-specific |
| Cabinetry or bench changes | The opening and clearances may need another trade |
| Electrical alterations | A licensed electrician may be needed for the appliance supply |
| A new gas service | Distributor connection work is different from internal gas fitting |
The cooktop itself is not included in the existing-point connection band. The gas hot-water figure is a separate supplied-and-installed system option, not an extra to add to a cooktop job.
Gas leak investigation versus extensive pipe replacement
A small accessible fitting repair can fit a different budget from locating a fault under a building or replacing a long buried line. Agree on the investigation and initial repair scope, and how further work will be authorised if testing reveals a more extensive problem.
Testing is essential; a smell disappearing does not establish that a system is safe. Never try to locate a gas leak with a flame, tighten gas fittings yourself or repeatedly restart a faulting appliance.
What to do if you smell gas
Leave the area without operating switches or using a phone inside. From a safe outdoor location, call 000 for immediate danger or the gas distributor’s emergency number. Jemena’s safety information explains the response for its network. Arrange gas-fitting work once the immediate hazard has been addressed.
Before accepting a gas quote
Check that it identifies the appliance, gas type, connection or pipe route, testing and required documentation. Ask whether removal, disposal, access work and other trades are included. You can check the contractor licence through Service NSW.
Send Panther the appliance and site details, including a clear photo of the existing connection and model label. Do not disconnect an appliance to take the photo.
About the author
Panther Plumbing Group
Family-owned plumbing repairs, maintenance and installations across Sydney. We assess the job, explain the options and discuss the scope and cost before work proceeds.
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