Learn the signs of a gas leak every homeowner should know, what symptoms to watch for, and the safe steps to take if you smell gas in your home.
Signs of a Gas Leak Every Homeowner Should Know


Gas issues can be frightening, especially when the warning signs are not obvious. Many people notice something feels “off” before they can clearly explain why. Understanding the early signs and knowing the right steps to take can make a critical difference in keeping your home and family safe.

Common Signs of a Gas Leak
Knowing the signs of a gas leak helps you act quickly and avoid danger. These issues are not always visible, but they often give clear warning signals.
Common signs include:
- A smell of rotten eggs or a strong sulphur odour
- Smelling gas even when appliances are turned off
- A whistling or hissing sound near a gas line or system
- Pilot lights going out or a blue flame turning yellow or orange
- Feeling dizzy, nauseous, tired, or experiencing headaches
- A gas detector sounding an alert
These symptoms may point to a problem in your home and should always be taken seriously.

Why Gas Smells Are a Serious Safety Risk
Gas leaks create serious health and safety risks. Breathing in natural gas or carbon monoxide can lead to headaches, breathing issues, or loss of consciousness.
Gas can also build up indoors. Contact with open flames, electrical sparks, or even mobile phones may cause ignition. This is why gas safety rules are strict and fast action is essential.
Common Gas Warning Signs NZ Homeowners Should Know
In New Zealand, gas leaks may occur around gas appliances, hot water systems, or older gas systems. A gas leak sign NZ homeowners often notice first is an unusual smell inside the house, especially in enclosed areas.
If you suspect a gas leak, do not ignore it even if the smell fades. Some leaks are intermittent and still dangerous.

What to Do Immediately
If you notice signs of a gas leak:
- Open windows and doors to let in fresh air
- Avoid using open flames or electrical switches
- Do not use mobile phones near the suspected leak
- Leave the building and move to a safe location
- Contact an emergency plumber in Auckland straight away
Never attempt to detect a gas leak yourself beyond basic safety steps.
When to Call a Professional
If gas smells continue or you cannot find a clear cause, professional help is required. Trained plumbers can detect a gas leak safely and secure the gas supply.
Searching for plumbing services near me helps you find local professionals quickly, especially if the issue is not resolved right away.
Final Thoughts
Gas leaks should never be ignored. Recognising the signs of a gas leak and knowing what to do helps protect your home, your health, and everyone inside. Acting early and choosing professional support from Water Works is always the safest option when gas safety is at risk.
Need Help With a Suspected Gas Leak?
If you smell gas or notice warning signs, do not wait. Call 0800 448 372 or book online and save $15. Our experienced team is ready to respond quickly and safely.
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