Gas Hot Water Repairs & Replacement across Sydney

Our licensed gasfitters cover the full life of a gas hot water system, from emergency repairs when the house goes cold through to servicing, replacement and brand new installations. Common repair jobs include pilot and ignition faults, thermocouple and gas valve replacement, leaking cylinders and worn TPR or tempering valves. On the installation side we fit both storage cylinders and continuous flow units, upgrade gas lines and flues where needed, and work on natural gas and LPG supplies alike.

Loss of hot water and leaking cylinders are the two most common emergency calls we receive, and both are given same day attention wherever scheduling allows. Every callout is attended by a licensed gasfitter, which matters because faults with the gas valve, thermocouple and flue must be worked on by a licensed trade under Australian Standards. Closing the isolation valve stops the gas supply to the unit if you ever smell gas while waiting.

We work throughout the local region rather than sticking to a single suburb. Give us your address and we can tell you in a moment whether you fall inside our usual run or whether we will need to plan a trip out.

Three things set the base price of a hot water replacement, the type of unit, its size and whether it is a direct swap. Four things then add to it, gas line upgrades, flue changes, LPG setup and difficult access. Everything is confirmed on site and provided as a free written quote.

If the pilot lights but goes out again the moment you release the button after relighting, the thermocouple is not heating enough to take over from the manual override. That can be a worn thermocouple, a pilot flame too small to reach it because of a blocked jet, or a sensor that has shifted out of the flame. Any of these is a quick diagnosis for a licensed gasfitter.

Before you book anyone for gas work, check three things, that they hold a current gasfitting licence, that they carry insurance, and that they will issue a compliance certificate. We tick all three on every hot water installation, repair and replacement. Anyone who cannot is not someone you want working on a gas appliance.

The parts that fail most often on a hot water unit, thermocouples, pilot jets, igniters, TPR valves, tempering valves and sacrificial anodes, are all designed to be replaced. The tank itself is not, and once it corrodes or leaks the unit has reached the end of its life. That distinction is what separates a repair from a replacement in almost every case we see, and we will tell you which side of the line your system falls on.

If you are moving the unit to a new position, flag it when booking. Relocation adds pipework and flue changes that turn a few hours into most of a day, and knowing in advance means the installer brings the right fittings and allows enough time to finish in one visit.

Continuous flow owners in hard water areas should ask about descaling at each service, because scale on the heat exchanger is the main reason these units lose output over time. The visit otherwise mirrors a storage service with a burner clean, gas pressure and ignition tests, a flue and draught check, a tempering valve check at 50 degrees Celsius, and a leak and carbon monoxide test, with the TPR valve and anode checks applying to storage cylinders. Worn components are written up for you to consider.

Manufacturer cover on the unit is tied to a correctly completed, licensed installation. Our gasfitters hold the required licence and issue the compliance certificate on every install, which is what keeps that cover valid. On top of that sits our own guarantee on the workmanship, so the pipework, flue and gas connections are backed by us.

Hot water systems are built with several safety devices, so a unit that shuts itself down is usually doing exactly what it should. The thermocouple cuts the gas when the pilot is out, and the TPR valve releases pressure if the cylinder gets too hot, which protects you and the home. A gasfitter can reset or replace whichever device has tripped and confirm the system is safe to run again.

Continuous flow units are compact and wall mounted, usually fitted outside, and provide hot water for as long as the tap runs with no risk of the supply going cold. They do require adequate water pressure and can lag briefly before hot water arrives on short draws. Storage cylinders are larger, handle simultaneous demand simply, and are often the easier like-for-like swap. We assess your home and advise which set of characteristics fits it best.