High water bill and signs of water damage is usually the first signs of leak. Slab leaks usually have no visual indication of anything wrong and usually go unnoticed for some time. While both of these leaks can be hard to diagnose, HPC have a solution for you. 85 % of leaks are diagnosed with out equipment and have been known to be expensive to locate. Important knowledge like when the home was built and what materials are used to supply water to the structure help eliminate a lot of the non-sense that many others cannot solve. Before fancy expensive equipment was invented there was a procedure used to determine the leaks In and around homes.