If a gas leak is found during a smart meter installation, the visit usually stops immediately and the gas supply is turned off. This often catches homeowners and landlords off guard, especially when everything seemed to be working normally beforehand.
If you suspect a gas leak, call 0800 111 999 first. The Leak Hunter works on confirmed gas leaks after the supply has been turned off or isolated.
Why smart meter installations sometimes uncover leaks
When a smart meter is installed, the engineer carries out safety checks on the gas system. This includes testing the pipework, which can reveal leaks that were not previously noticed.
These leaks are often small and hidden, which is why they don’t show obvious signs during normal use.
This is something we see regularly — a system appears fine day to day, but fails when properly tested.
Why the gas is turned off straight away
If a leak is detected, the engineer cannot leave the system running. The supply is capped or isolated to prevent any risk.
At this point, the situation shifts from installation to fault resolution. The meter fitting is no longer the priority — finding and fixing the leak is.
You can understand this stage more clearly in Gas Capped Off What Next.
Does this mean major work is needed?
No — and this is where many people assume the worst too quickly.
A leak being detected does not mean the entire gas system has failed. In many cases, the issue is limited to a specific section of pipework.
Without locating the leak, it is impossible to know how much work is actually required.
Why people are often advised to replace pipework
When the leak location is unknown, replacing the pipework can seem like the simplest solution. It removes uncertainty and guarantees the issue is resolved.
However, this can lead to unnecessary cost and disruption if the leak is actually localised.
This is where many homeowners and landlords end up paying for more work than needed.
What should you do next?
- Confirm the gas supply has been safely isolated
- Understand that the leak location is still unknown
- Avoid committing to full pipe replacement immediately
- Arrange for the leak to be traced accurately
This approach gives you a clear understanding of the problem before making any major decisions.
How leak tracing changes the outcome
Once the leak is located, the situation becomes much clearer. A small, localised issue can often be repaired without replacing large sections of pipework.
This is why How We Trace Gas Leaks After Isolation is such an important step.
It turns uncertainty into a clear plan.
What this means for landlords and tenants
For landlords, this is about avoiding unnecessary cost while restoring the gas supply quickly. For tenants, it is about understanding what is happening and how long it will take.
Once the leak has been identified, timelines and repair options become much clearer.
How The Leak Hunter can help
The Leak Hunter specialises in tracing and repairing gas leaks after isolation. We identify the source of the issue and provide a clear repair solution wherever possible.
Learn more about our service here: Gas Leak Detection.
Frequently asked questions
Why would a smart meter installation find a leak?
The installation process includes safety testing, which can detect leaks that are not noticeable during everyday use.
Can the installation continue once a leak is found?
No. The leak must be resolved before the system can be safely used again.
Do you only cover my area?
If you’re outside these areas, don’t worry — our team covers most of the South East, providing trusted leak detection services throughout London, Kent, Sussex, and Surrey.
If a gas leak is found during a smart meter installation, the most important step is to locate the issue properly before deciding how to fix it.
Find out more about Gas Leak Detection.


