If a mains water leak has been identified near the boundary of your property, it often creates confusion straight away. The location sits in a grey area — not clearly within your home, but not obviously the water company’s responsibility either.
The first question most homeowners ask is simple: who is actually responsible for fixing it?
The answer depends on exactly where the leak sits in relation to the water meter and property boundary. Understanding this early helps you avoid delays and take the right next step.
Where responsibility usually begins and ends
In most cases, responsibility for a water pipe is split at the meter.
This means:
The water company is responsible up to the meter
The homeowner is responsible from the meter to the property
If the leak is on the pipe after the meter — even if it’s near the boundary — it will usually fall under homeowner responsibility.
If you want a clearer explanation of how these supply pipes are structured, see mains water leaks explained.
Why boundary leaks can be confusing
Leaks near the edge of a property often feel like they should belong to the water company.
That’s because:
The location is outside the home
It may be close to public land or footpaths
The meter itself may also be near the boundary
However, responsibility isn’t based on visibility or proximity to the street — it’s based on where the pipe sits in the system.
What if the leak is before the meter?
If the leak is confirmed on the pipe before the meter, it is usually the water company’s responsibility to repair.
In these cases:
You would typically report the issue back to the water provider
They would arrange investigation and repair
This is why accurate identification of the leak location is essential before taking action.
What if the leak is after the meter?
If the leak is on the supply pipe after the meter, it is generally the homeowner’s responsibility — even if it’s outside the property boundary line.
This includes:
Pipes running under driveways or paths
Sections of pipe near the boundary
Shared sections in some cases (depending on layout)
If you’re unsure, it’s important to confirm the exact position of the leak rather than relying on assumptions.
How to confirm responsibility properly
The only reliable way to confirm responsibility is to accurately locate the leak and identify which section of pipe it sits on.
This involves:
Tracing the pipe route
Pinpointing the exact leak position
Mapping it in relation to the meter
At The Leak Hunter, we carry out precise detection to remove this uncertainty before any decisions are made.
To understand how this process works, visit how we find mains water leaks.
What about shared supply pipes?
In some properties — particularly older ones — the supply pipe may be shared between multiple homes.
This can make responsibility more complex.
In these cases:
Responsibility may be shared between homeowners
Access and repair may need coordination
The layout of the pipe determines who is involved
If you’re dealing with this situation, it’s worth reviewing who is responsible for a mains water leak for more detail.
What to do next
If a leak has been identified near your property boundary, the next step is not to assume responsibility — it’s to confirm it.
This means:
Locating the leak accurately
Identifying which section of pipe is affected
Determining whether it falls under homeowner or water company responsibility
Once that’s clear, the path forward becomes much simpler.
Final thoughts
Boundary leaks can feel unclear, but the rules around responsibility are usually straightforward once the exact location is known.
The key is not guessing based on where the leak appears — but confirming where it sits within the supply system.
With accurate detection and clear positioning, you can move forward confidently and resolve the issue without unnecessary delays.
To see how we help homeowners identify and resolve supply pipe leaks, visit mains water leak detection.
Frequently asked questions
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.
How do I know if the leak is before or after the meter?
This requires accurate leak detection. The exact position of the leak must be confirmed in relation to the meter.
Will the water company help if it’s near the boundary?
Only if the leak is on their side of the system. If it’s after the meter, it is usually the homeowner’s responsibility.
Can responsibility be shared?
Yes, in some cases where supply pipes are shared between properties. This depends on how the pipe is configured.