DCI Leak Detection finds and pinpoints hidden water leaks across Cornwall and Devon residential and commercial properties without damaging your property. With 30+ years’ experience, we use advanced, non-invasive tools such as tracer gas, acoustic listening and thermal imaging to locate the hidden leak fast and accurately. Expect clear pricing, a No Find, No Fee guarantee on most domestic jobs, and insurance-ready trace-and-access reports. From mains water leaks to underground, underfloor heating systems, central heating systems, plumbing leaks, trace and access, slab leaks, external pipework, swimming pool leaks we do it all.