24-hour call-out and 10-year guarantee on all new installations. Pipesmart have over 10 years' experience in repairing and laying all types of underground water supply pipes. Leak detection service. All their operatives hold the 'Water Passport' (National water hygiene card). £5m public liability insurance. Leak detection specialists, using high-tech tracer gas equipment. State-of-the-art trench-less technology to minimise disruption. Thames Water and water industry approved external services.