Gas in Auckland comes two ways. Many homes, particularly in established central, eastern and North Shore suburbs, are connected to the reticulated natural gas network operated by Vector, with a meter on the outside wall or near the boundary. Many others, including a lot of homes out west, on the fringes and in areas without a gas main, run on LPG from 45 kg bottles standing against the house, usually feeding a gas hob and a continuous-flow water heater. Both are gasfitting work, and both can go wrong at inconvenient hours.
Safety first: what to do if you smell gas
Gas suppliers add a smell to gas so a leak can be noticed. If you notice it:
- Do not touch switches, appliances or the garage door, and do not light anything.
- Open doors and windows on the way out if it is safe to do so.
- Turn the gas off at the meter, or at both LPG bottle valves, if you can reach them easily.
- Get everyone outside and away from the house, including pets.
- Ring 111 from outside if the smell is strong.
A gasfitter comes in once the house is safe. Do not go back inside to check whether the smell has gone.
Who is allowed to do gas work
In New Zealand, gasfitting is restricted work under the Plumbers, Gasfitters, and Drainlayers Act 2006. Only people authorised by the Plumbers, Gasfitters and Drainlayers Board (PGDB) may do it, and that includes LPG systems, not just natural gas. An authorised gasfitter carries a PGDB photo ID card, and you can check any name on the PGDB public register online.
For certain gasfitting work, a certifying gasfitter must issue a gas safety certificate and a certificate of compliance. The gasfitter will tell you which paperwork applies. Keep it with your house documents; it is your record that the work was tested and left safe.
Natural gas: Vector’s network and your pipework
Vector looks after the gas network in the street and the supply up to the meter. From the meter onward, the pipework running under the floor, through the ceiling and to each appliance belongs to the property owner. In older villas in Remuera, Parnell, Epsom and Mt Eden, gas pipework has often been extended in stages over decades, and a leak test of the whole installation is usually the starting point before any appliance is blamed.
LPG bottle systems
A typical Auckland LPG setup is two 45 kg bottles on a changeover valve, connected by flexible pigtails to a regulator and then to the house. Common faults include perished pigtails, regulators that have failed or iced up under heavy demand, changeover valves that stick, and bottles standing too close to windows, vents or drains. Houses in Titirangi and the Waitākere Ranges, where bottles sit on steep, bush-shaded sections, are prone to corrosion on fittings. When LPG runs out quicker than it should, a pressure test tells you whether a leak is to blame.
Gas hot water and appliances
Continuous-flow water heaters are the most common gas appliance in Auckland homes, on both natural gas and LPG. When one fires then cuts out, or runs cold during a shower, the fault may be the gas supply, the unit or the flue. Units on exposed coastal walls in Howick, Half Moon Bay and along the North Shore beaches also suffer from salt air. If you have an electric or low-pressure cylinder instead, see hot water cylinder repairs.
Hobs, ovens, gas fires and outdoor heaters also need servicing. Yellow or sooty flames, scorch marks and a smell when an appliance is lit all mean it should be checked before it is used again.
How an emergency gas job is done
The gasfitter isolates the supply, then pressure tests the installation to confirm whether it is holding. A leak is found with a detector and leak-test solution, and the repair is quoted before work starts. A failed joint, regulator or pipe section is replaced, or an appliance is repaired or capped off. The system is retested, appliances are checked for correct flame and flue operation, and paperwork is issued where the work requires it.
When it is not an emergency
A hob burner that will not light because it is wet or blocked, a gas fire that needs its annual service, or planning to swap from gas to induction can all wait for a normal booking. A gas smell, hissing, or signs of a faulty flue are never something to leave. Get outside first, then call. For after-hours help with anything else, see our 24 hour emergency plumber service.
