Hoses & connectors: $100–$200
The brittle old flexible behind the cooktop: tiny part, outsized share of the leaks we find.
Gas is the one trade where "pretty confident" is not a standard. Leaks found and repaired, cooktops and heaters connected, lines run and certified: all of it by licensed gasfitters, all of it pressure-tested before the gas goes back on in Turramurra.
In NSW, every job on a gas installation: connecting a cooktop, moving a bayonet, repairing a line: must legally be done by a licensed gasfitter, and for good reason: the failure modes are leaks, fires and carbon monoxide, none of which give second chances. It is also why "the handyman hooked it up" appliances are the single most common source of the leaks we get called to.
Licensed does not just mean allowed. It means the job finishes with a manometer pressure test proving the whole installation holds, appliances checked for correct operation and ventilation, and work done to AS/NZS 5601, the standard that decides what your insurer thinks of the installation if anything ever goes wrong. Across Turramurra and the Upper North Shore, that is the finish line on every gas job we do.
Jemena, the largest gas distributor in NSW with over 1.5 million homes and businesses connected, does not reach every street. LPG streets exist and they change the calculations, so we confirm supply type on site.
Beyond the reticulated network, gas means bottles or a bulk tank. LPG runs at a different pressure from natural gas, uses different jets and regulators, and appliances are not interchangeable between the two without conversion.
It is the single most common mistake we correct on rural properties: a natural gas appliance bought secondhand and connected to LPG. It will burn, badly and unsafely, and the yellow flame is the giveaway.
A house usually means appliances, heaters and new runs; an apartment usually means a cooktop and a compliance question. Both sit under the same standard.
Older properties routinely have redundant gas pipework, a disconnected heater, a removed stove, a fireplace converted decades ago: and it is not always capped to any standard, or capped at all.
Those are found by pressure testing the whole installation rather than the part in use. It is the single most common reason an old house fails a test, and it is usually inexpensive to put right once located.
Cylinder and bulk tank installations have clearance requirements from boundaries, openings, ignition sources and vehicle paths, and those are the things most often wrong on a property where a shed or deck has been added since.
Gas installations and appliances are governed by AS/NZS 5601:2022, referenced in the Gas and Electricity (Consumer Safety) Regulation 2018 and legally enforced in NSW (NSW Government), covering pipe sizing, ventilation and appliance clearances. It is licence-only work.
It is worth a check whenever anything is built near an existing installation. A compliant tank position can become non-compliant because something was built beside it, and that surfaces at sale time if not before.
A period home was not built with gas in mind. Whatever it has was added later, often several times, and the runs take whatever route was available at the time, under floors, through cavities, along the outside of a wall and back in.
Which is why the first job on an older property is usually establishing what is actually there. A pressure test tells you whether the installation is sound; it does not tell you where it goes, and both matter before anything is added.
On a large property the run from the tank to the house, or out to a shed, a studio or a second dwelling, can be substantial, and pressure drop over distance is real.
An appliance starved at the end of a long undersized line behaves like a faulty appliance. Sizing the run correctly is the fix, and it is far cheaper to establish before the trench is closed than after.
Gas runs in older homes are frequently black steel, and steel corrodes internally over decades. The bore narrows with scale, which starves appliances at the far end of the run, and the wall thins at the low points where moisture collects.
An appliance that has become unreliable at the end of a long old run is often reporting on the pipe rather than on itself. That is worth establishing before it gets replaced.
The brittle old flexible behind the cooktop: tiny part, outsized share of the leaks we find.
Thread and valve leaks sealed properly and proven again on the gauge.
Corroded or damaged sections replaced; concealed lines with access work run $800–$2,500.
Connected, tested, certified. New line or bayonet to reach it quoted fixed on top.
Sydney's 2026 licensed-gasfitter range; attendance typically $80–$150. Certification is included, because without it there is no job.
The receipt that matters is not paper: it is the needle on the manometer refusing to drop. Figures here are indicative of the 2026 Sydney market rather than a quote from us, you get your own number as a fixed price before any work starts.
Nor should it, legally. One visit: connected, tested, certified, warranty intact. The proper way is also the cheap way, counted honestly.
Licensed, pressure-tested, documented: every time. Smelling gas this minute? 131 909 from outside comes first.
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