How do I know if I have a gas leak?

Gas Plumbing Chadstone

A customer in Chadstone reported a gas leak in their DUX hot water unit. Our licensed gas plumbers attended the call fast.

The Doherty Plumbing Solutions team investigated the unit and found the gas cock supply to the hot water unit was leaking, due to a loose compression nut. The existing compression nut was tightened, and soapy water test carried out around the appliance’s connections. Everything was found back to working order.

Everything was tested, and all was ok! The heater was now functioning perfectly relying on a gas booster unit.

How do you know if there is a gas leak?

A potential gas leak is not always easy to detect – it may not make a sound or is easily smelt/seen. Moreover, there could be a danger of Carbon Monoxide poisoning.

So, having a professional gas plumber inspect all gas appliances and pipelines regularly will ensure their safety and efficiency. Where required, they may also advise you on long-term fixes and the correct upgrades.

Observing these tell-tale signs might mean calling a licensed gas plumber for renewal/repair of your gas units and connections in Melbourne.

  • Physical manifestations
    A gas leak can be deceiving. A rotten egg-like stench in your property, and residents suffering from flu-like symptoms, including headache, nausea, muscle pain and weakness, shortness of breath, dizziness or chest pain, could indicate a potential gas spillage.
  • Gas output
    Erratic gas output, and when appliances start burning a yellow flame, could be signs of a problem in the supply line. A safely burning gas flame is bluish yellow in colour.
  • Hissing noise
    A hissing sound from a point in the gas connection or a gas appliance means there might be a leak. This requires an immediate fix, with the help of an expert gas plumber.
  • Unusual gas bills
    If you suspect the monthly gas bills at your household or workplace are inconsistent with the usage, this higher-than-normal amount could be a sign of faulty gas lines.
  • Decomposing plant matter
    Dead/decomposing/withering vegetation in spots around your property’s gas mains and connecting pipes could be a giveaway of gas line malfunctions.
  • Old, galvanized pipes
    Outdated galvanized gas pipes run the risk of corrosion and rusting, which need replacement in the long run to avoid gas leakage that might cause a health hazard.

More information:

When your hot wat

For the latest gas safety information from Energy Safe Victoria, please visit the following links:

You can also contact Energy Safe Victoria via info@energysafe.vic.gov.au or call 03 9203 9700 or 1800 800 158 (freecall). For any emergencies, please always dial 000.

How can Doherty Plumbing Solutions help?

As your local gasfitting experts in Melbourne’s eastern suburbs, our licensed and experienced gas plumbing professionals here at Doherty Plumbing Solutions can locate and safely carry out necessary repairs/renewals of all types of gas lines and appliances. We will provide you with a Gas Safety Report on completion of work.

Get in touch with the Doherty Plumbing Solutions office today at:

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    Of the many plumbing services they offer, this is the second time I've engaged them for different types of work. James has been very helpful and efficient in scheduling a time for a roof leak repair. Very pleased that the work was completed promptly. Trust that they have addressed the issues at hand.
    tjokro aminoto Avatar
    tjokro aminoto
    12/13/2024
    Responsive, reasonably priced and pleasant to deal with. Have used several times in the past and will continue to do so.
    Fiona Walliss Avatar
    Fiona Walliss
    9/13/2024
    Brian Doherty and his team provided first class service for several gas/electric requirements we had. The plumbing staff were excellent, fully capable, and very easy to work with. Most highly recommended service.
    PJB Avatar
    PJB
    9/13/2024
    Doherty Plumbing have been our plumbers at Paris Financial for many years. They are reliable, respective of our team and reasonably priced. I highly recommend them
    Patrick Mannix Avatar
    Patrick Mannix
    9/30/2025
    Prompt responses, competitive pricing and jobs completed in a timely manner. Would recommend and will use again for other jobs.
    Greg Wood Avatar
    Greg Wood
    10/01/2025
    Always reliable and responsive we have used them on multiple tasks.Matt installed a modem toilet onto a vintage drain without difficulty. I have recommended them to my friends
    John Moore Avatar
    John Moore
    7/13/2024
    I have been using Doherty Plumbing Solutions for a few years now and I have always found them to be great value and relieable.
    Andrew Radford Avatar
    Andrew Radford
    9/08/2025
    Once again it was a pleasure dealing with Doherty. Thank you to Brian for promptly organising the visit and thank you to Tim for arriving on time and clearing the blockage. Highly recommend their services.
    Sue Smith Avatar
    Sue Smith
    10/02/2025
    I rang them early morning & they arrived on the same day. They found the leak which was under the house, fixed it promptly. The plumber was helpful & friendly, communicated well. I'll use them again.
    Elizabeth Avatar
    Elizabeth
    8/13/2024
    Doherty plumbing work was excellent. Very responsive, arrived on time and fixed the issue quickly. Brian and his crew kept me informed at every step and I could not be happier with the end result.
    Anne-Marie Cook Avatar
    Anne-Marie Cook
    1/13/2025
    For reliable plumbing services, call 03 9877 5775 or 0417 577 432