AB-03Check for cables and pipes before you drillCables and pipes can run almost anywhere in a wall, not just in the zones you'd expect. Run a detector over both marked spots, but still treat the wall as if something could be there — detectors miss cables that are deep, in metal conduit, or behind metal-backed plasterboard. Find your stopcock now, usually under the kitchen sink, and check it turns freely. If you have any doubt, isolate the circuit at the consumer unit before drilling, and know you can shut the water off fast if you hit a pipe.