AB-03Check for hidden cables and pipes before drillingCables and pipes can run almost anywhere in a wall, not just in the usual safe zones, and a detector can still miss them. Sweep the area with your detector but drill as if something is there until you've proved otherwise. Find your stopcock, usually under the kitchen sink, and check it turns freely so you can shut the water off fast if you nick a pipe. If you have any doubt at all, isolate the relevant circuit at the consumer unit before you drill.