If you can see water bubbling up through the road or pavement, it’s usually a clear sign that something isn’t right underground. This can look like a small patch at first, or a steady flow that appears without any obvious source.
It’s a situation that often causes concern, especially if it’s near your property, but the correct response isn’t always obvious.
What Causes Water to Appear Through the Road?
When water starts coming up through the surface, it typically means there is a leak somewhere below ground.
This could be coming from:
- A water main beneath the road
- Pipework leading towards nearby properties
- A supply pipe connected to a home
As water escapes under pressure, it finds the easiest path to the surface, which is why it can appear through cracks, joints, or weaker areas in the road or pavement.
Is This Your Responsibility?
In most cases, water appearing in the road or pavement is linked to the public water network rather than an individual property.
However, depending on the exact location, it can sometimes relate to pipework connected to a property nearby. This is why it’s important not to make assumptions based purely on where the water is visible.
What You Should Do First
If you see water bubbling up through the road or pavement, the first step is to contact your water supplier.
They are responsible for investigating issues on the public network and will determine whether the leak sits within their infrastructure.
You can contact:
- Thames Water (London and surrounding areas)
- Southern Water (parts of Sussex and Kent)
- South East Water / SES Water (Surrey and surrounding areas)
- Affinity Water (parts of London and the South East)
If you’re unsure which supplier covers your area, a quick postcode check on their website will confirm it.
What Happens After You Report It?
The water supplier will assess the situation and decide whether the issue is on their side of the network. In many cases, they will arrange the necessary repair if it relates to the public system.
If the issue is not on the network side, further investigation may be needed to determine whether the leak is connected to a nearby property.
When It Could Relate to a Property
Although less common, water appearing in the road can sometimes be linked to a supply pipe running from the boundary into a property.
In these situations, the exact location of the leak needs to be confirmed before any repair can be planned.
You can see how this process works in what happens after a mains water leak is found.
How The Leak Hunter Helps
If the issue is confirmed to be connected to a property rather than the public network, The Leak Hunter takes ownership of locating the exact source of the problem.
We use non-invasive detection methods to trace underground pipework and identify where water is escaping, even when the visible signs are outside the property.
This ensures the correct repair can be carried out without unnecessary disruption.
Learn more about how we approach this at mains water leak detection.


