Gas Leak Detection in Hampton

Signs of a gas leak in your home

• Rotten-egg smell – this is mercaptan, a chemical added to gas specifically so leaks can be noticed.
• Hissing or whistling sounds near pipes, the gas meter or appliances.
• Unexplained rise in gas usage on your bill despite normal habits.
• Pilot light that keeps going out or burns yellow/orange instead of blue.
• Black sooty marks or scorching around a gas appliance.
• Houseplants dying for no obvious reason.
• Headaches, dizziness, nausea or fatigue indoors that ease when you step outside.

If you notice any of these signs, treat it as a potential gas leak. Turn off the gas at the mains if safe to do so, open windows, avoid switches and naked flames, and call the National Gas Emergency Service immediately on 0800 111 999. Once the immediate risk is dealt with, we carry out a full tightness test to confirm the source and repair it safely.

What to do if you smell gas?

• Open windows and doors to ventilate immediately.
• Do not operate light switches, sockets or phones indoors, and avoid anything with a flame.
• Turn off the gas at the emergency control valve by the meter if safe to reach.
• Leave the property immediately.
• Call the National Gas Emergency Service on 0800 111 999, free and available 24 hours.
• Call a Gas Safe registered engineer to find and repair the leak before the supply goes back on.

For properties with LPG, contact your supplier’s emergency number shown on the tank or cylinder.

Your gas is capped. What happens next?

The National Gas Emergency Service makes your property safe by capping the supply at the meter, but this does not trace or repair the leak. Until a Gas Safe registered engineer finds the fault, fixes it and confirms the system holds pressure, the gas stays off – meaning no heating, no hot water, and no cooking.

That’s where we come in. As your local emergency gas engineer in Hampton, Dinate Engineering offers same-day visits across Hampton, full leak trace, repair and re-test, so your supply can be restored safely. Call 07860 648 433.

Gas leak detection in Hampton: How do we find the leak? 

• We do a gas tightness test at the meter to confirm whether the system is losing pressure.
• We perform a let-by test on the emergency control valve to check if it seals properly.
• We isolate sections of pipework to narrow the leak down to a specific run.
• We use an electronic gas detector to trace along pipework, joints and appliance connections.
• We only gain access where the leak actually is. If it’s under floors or walls, these are opened as a last resort and only at the confirmed spot.

Most domestic leaks are found without significant disruption, but concealed pipework sometimes requires access. Our method works on both natural gas and LPG systems. By combining calibrated pressure testing with sensitive electronic sniffers, we locate the issue precisely before any invasive work begins. 

This non-invasive-first approach keeps your home intact while delivering a definitive answer. Once the leak is pinpointed, we repair or replace the faulty section and retest to ensure the system is safe and compliant.

Once we find the leak, we fix and re-test

Once a leak is confirmed, we repair or replace the faulty section of gas pipework or the appliance connection, then re-run the tightness test to prove the system is sound before the gas goes back on.

Our gas leak repair in Hampton service covers pipe repairs and full replacement, re-routing old or corroded pipework, and appliance disconnection where the appliance itself is the source. We provide a clear explanation and options for repair, replacement, or safe isolation. For boiler-side faults, we also provide boiler repairs in Hampton – we diagnose the issue, verify it, and deliver solutions to get your system running safely.

Why choose Dinate Engineering for gas leak detection?

• Gas Safe registered (licence 520763). Verify instantly at gassaferegister.co.uk 
• Over 20 years’ trade experience and 4,000+ completed jobs, meaning faster diagnosis and fewer missed risks.
• Qualified for natural gas and LPG systems – we handle both fuel types without needing a second call.
• Certified for domestic and commercial premises, whatever the environment or scale.
• 5-star Trustpilot and Google rating. See real client feedback at Dinate Engineering on Trustpilot and Dinate Engineering on Google

Areas we cover

Based in Hampton (TW12), we provide gas leak detection and repair across South West London, including Teddington, Twickenham, Richmond (TW9/TW10), St Margarets (TW1), Kingston upon Thames, and Sunbury-on-Thames – as well as surrounding areas on request. This covers rental properties such as flats, houses and HMOs.