Mains Water Leak Detection in Cornwall
Find a leak on your mains supply pipe, between the boundary and the house, without digging blind. Non-invasive detection across Cornwall.
Fast Local Response
Quick call-outs across Cornwall.
Insurance-Approved Reports
Trace & access reports to help you claim.
Pinpoint Accuracy
We locate it before any ground is opened.
Cornwall-Based
Local team covering Land's End to Launceston.
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Fast response · No obligation · Insurance-approved reports
Leak on your mains supply pipe?
Your mains supply pipe carries water from the boundary stopcock to your home, often buried under gardens, drives and lanes. A leak on this run can lose a lot of water quietly. It drives up your bill, softens the ground, and because it is underground it is easy to dig in the wrong place chasing it.
We locate mains water leaks precisely across Cornwall using acoustic correlation, ground microphones and tracer gas, so any excavation goes straight to the leak. We also help you understand where responsibility sits between you and South West Water. Related services include general water leak detection, underground water leak detection and insurance-backed trace and access.
Signs of a mains leak: a high or rising water bill, low pressure, a meter that keeps turning with everything off, damp or boggy ground, or grass that stays green in dry spells. Our Water Leak Guide walks through each of these in more detail.
Why a mains leak is your cost to carry
The supply pipe from your boundary stopcock to the house is usually your responsibility, not the water company’s. So a leak on that run quietly adds to your bill, and the repair falls to you.
Left to run, a mains leak can:
- lose water continuously and push your bill up
- soften and wash out the ground under drives, paths and gardens
- reduce the water pressure to your home
- cost more in excavation if the leak is not pinpointed first
We locate the leak on the supply pipe precisely, so the repair is small and you are not paying to dig up the whole run.
How we find mains leaks
Acoustic correlation to calculate the exact leak position along the pipe
Ground microphones to listen for water escaping under the surface
Tracer gas to pinpoint the leak through hard surfaces
Pipe and meter checks to confirm the loss and isolate the run
Why Cornwall homeowners choose us
Local to Cornwall, so we know the rural supply runs
Pinpoint accuracy means minimal digging and lower reinstatement costs
Help understanding responsibility with South West Water
Insurance-approved trace & access reports
Mains leak detection across Cornwall
We cover the whole of Cornwall, from Land’s End to Launceston, including Truro, Newquay, St Austell, Falmouth, Penzance, Bodmin, Bude and Liskeard. See all the areas we cover.
Mains leak FAQs
Generally you are responsible for the supply pipe from the boundary into your home, while South West Water looks after the main up to the boundary. The split can vary, so check with them. We pinpoint exactly where the leak is, which helps establish who is responsible.
Yes, that is the whole point. Acoustic correlation and tracer gas locate the leak precisely so any excavation goes straight down onto it rather than across the whole run.
South West Water may offer a leak allowance or repair assistance in some circumstances. Eligibility and terms vary, so check directly with them. A precise leak location and report from us supports any application.
The whole of Cornwall, from Land’s End to Launceston, including Truro, Newquay, St Austell, Falmouth, Penzance, Bodmin, Bude and Liskeard.