Being told your water supply is leaking can feel urgent — even alarming. In many cases, this comes from a water company notification, a detection report, or a professional inspection that has confirmed a problem on the pipe running from the meter to your property.
The natural question is: do you need to act immediately, or can it wait?
The answer depends on the nature of the leak, but one thing is always true — a mains water leak does not stop on its own. Understanding the urgency helps you make the right decision without unnecessary panic.
What it means when your supply pipe is leaking
A confirmed leak on your supply pipe means water is escaping continuously from the underground pipe that feeds your property.
This type of leak:
Runs constantly, even when no water is being used
Often remains hidden below ground
Can worsen gradually without visible warning
If you’re unsure how these leaks develop and why they can go unnoticed, it helps to read mains water leaks explained.
Does it need to be fixed straight away?
In most cases, you should not delay action — but that doesn’t mean you need emergency excavation the same day.
The key difference is:
This is not an emergency in the same way as a burst pipe inside your home
But it is a continuous issue that will not improve over time
The longer it’s left:
The more water is lost
The higher your bills may become
The greater the chance of ground movement or surface damage
So while you don’t need to panic, you do need to move forward with proper investigation and repair planning.
Why some leaks feel less urgent than they are
Many homeowners delay action because nothing appears to be wrong on the surface.
You might not see:
Damp patches
Pooling water
Any internal damage
But underground leaks behave differently. Water can disperse into surrounding soil without immediately affecting visible areas.
This creates a false sense of security — the problem feels small, but it’s still ongoing.
What you should do first
The first step is not to guess or assume the severity — it’s to confirm the situation properly and understand exactly what you’re dealing with.
This involves:
Pinpointing the location of the leak
Assessing the condition of the pipe
Determining the most suitable repair approach
At The Leak Hunter, we use non-invasive detection methods designed specifically for supply pipes.
To understand how this process works, see how we find mains water leaks.
What happens if you leave it too long
While some leaks may seem stable, they rarely stay that way.
Over time, the effects can include:
Increasing water loss and rising costs
Softening of the ground around the pipe
Damage to driveways, paths, or landscaping
More extensive excavation when repair becomes unavoidable
Acting earlier keeps the situation simpler and more controlled.
Planning the repair without unnecessary disruption
Once the leak is confirmed and located, you can plan the repair properly.
This might involve:
A targeted repair to a specific section
A partial replacement if the pipe condition requires it
In some cases, rerouting the supply pipe
The important thing is that the decision is based on evidence — not assumptions.
You can read more about this stage here: what happens after a mains water leak is found.
Final thoughts
If your water supply has been identified as leaking, it’s not something to ignore — but it also doesn’t need to cause panic.
The right approach is measured and informed:
Confirm the leak properly
Understand the condition of the pipe
Choose the most effective repair option
With accurate detection and a clear plan, you can resolve the issue before it escalates, keeping disruption and cost to a minimum.
For a full overview of how we handle supply pipe leaks from detection through to resolution, 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.
Is a mains water leak an emergency?
Not in the same way as a burst internal pipe, but it does require prompt attention. The leak will continue until it is properly repaired.
Can I delay fixing the leak if nothing looks wrong?
It’s not recommended. Even without visible signs, the leak is ongoing and may worsen over time.
Will fixing it always involve digging?
Not always. The repair method depends on the location and condition of the pipe, which is why accurate detection is important first.