Mains Water Leak Detection Sussex is a specialist service focused on locating leaks on the incoming supply pipe between the boundary stop tap or water meter and your property.
We provide mains water leak detection across Sussex and confirm whether the fault lies on the incoming mains supply line before any excavation is discussed.
Across Sussex, supply pipes frequently run beneath driveways, landscaped front gardens and paved access routes before entering the home. Surface damp, soft ground or increased water usage rarely indicate the precise escape point. We narrow the affected section first.
If your water meter continues to move when all internal taps are off, or if water consumption has increased unexpectedly, we verify whether the issue sits on the external supply pipe rather than internal plumbing.
Because the incoming mains pipe is permanently pressurised, even minor fractures can result in continuous underground discharge. We isolate the fault using acoustic tracing, tracer gas testing and pressure verification before any trench is opened. No excavation is agreed until the leak location has been confirmed.
Where prolonged water loss has occurred, we assess surrounding ground stability and confirm the exact escape point before access is agreed. Continuous discharge beneath hardstanding can undermine driveways, soften sub-base layers and increase reinstatement complexity. We isolate the fault precisely so excavation remains controlled and limited to the verified section.
In Sussex properties, responsibility for the incoming mains pipe typically rests with the property owner from the boundary stop tap into the building. We confirm whether the leak sits on this section before any excavation or insurance discussion proceeds.
Supply pipes cannot be assessed visually. We use structured testing to determine whether the issue lies on the external supply line, internal plumbing or an alternative buried service. No trench is opened until the leak location has been verified.
Pipe material and installation depth vary across Sussex properties. We assess whether the supply line is copper or MDPE and adjust our diagnostic sequence accordingly. Ground conditions and surface construction are evaluated before we confirm the exact leak position.
Once the affected section has been precisely identified, we agree controlled access and carry out the repair with post-repair pressure verification.
This Sussex page forms part of our wider Mains Water Leak Detection expertise and is delivered across both counties:
For county-specific investigations, see:
Not sure this is the type of leak you’re dealing with? Start with our Leak Detection Sussex service. We investigate hidden and unknown leaks, identify the source, and recommend the most appropriate next steps before any repair work begins.
