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    Outdated galvanized gas pipes run the risk of corrosion and rusting, which need replacement in the long run to avoid gas leakage that might cause a health hazard.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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    I have been dealing with Doherty Plumbing for some years and I find them to be professional, knowledgeable and prompt. Their costs are very competitive. They are quick and always fix the problem. They have been so competent and reliable, that I will always call them and never go anywhere else.
    Gillian Morgan Avatar
    Gillian Morgan
    2/06/2025
    James was professional and knowledgeable. He explained my shower leaking issues as I was not able to attend myself. The plumbing work was completed promptly. And I was advised next steps with Tiler to make water proof. Very helpful and would definitely recommend to my family & friends.
    Fay Avatar
    Fay
    11/21/2025
    Tim arrived on time and quickly and efficiently got to the work needed - snaking out a blocked storm outlet. All working now like it should and as I hoped. Great service from Doherty’s!
    Mark Coffey Avatar
    Mark Coffey
    8/12/2025
    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
    Very quick response, great communication throughout and George was exceptionally courteous and helpful in finding a solution to my roof leak problem.
    Mandy Purcell Avatar
    Mandy Purcell
    9/25/2025
    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
    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
    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
    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
    I had an incredible experience with George from Doherty Plumbing. He was punctual, reliable and sorted out my leaking roof. Trustworthy and experienced. Would definitely recommend this small business if you are looking for excellent skills.
    Natalie King Avatar
    Natalie King
    11/03/2025
    For reliable plumbing services, call 03 9877 5775 or 0417 577 432