Internal water leaks are often caused by worn pipes, corrosion, lack of maintenance, incorrect installation, or poor quality materials. This type of water leakage can also occur in fixtures, for example toilet cisterns, taps, showers or radiators. To repair an internal water leak, you may need to replace some of the plumbing components, repair the fittings or, in some cases, seek advice from a professional plumber.
External water leaks occur primarily in pipes which run beneath your property and are usually caused by a number of factors, such as extreme temperatures, wear and tear, soil movement or incorrect installation. These kinds of leaks can be far trickier to repair since they usually require specialist Knowledge and equipment, such as ground penetrating radar, acoustic locating or thermal imaging cameras. Professional plumbers are usually equipped with the tools to diagnose and repair external leaks.