Leaks can occur in any building and are among the most frequent causes of costly damage, disruption and loss. Modern fit-out methods and the reliance on complex mechanical and electrical systems not only increase the chances of a leak, but can also make the outcome worse. The first indication of a leaking pipe hidden within a floor void may be the failure of the power supply, disruption of the network or the interruption of communications or data. Air conditioning plant, chilled water and heating systems, toilets, kitchens, vending areas, service risers, plant rooms and storage tanks can all present a serious leak hazard. If allowed to continue unchecked a leak, however small, is like a ticking time bomb! If it can be defused in time a disaster can be avoided.