KS-03Check for cables and pipes before you drillRun a cable and pipe detector over every mark before drilling. Cables and pipes can run almost anywhere in a wall, not just in the usual safe zones, so treat the detector as a warning system, not a guarantee — expect something to be there until you have proved otherwise. Find your stopcock now (usually under the kitchen sink) and check it turns, so you can shut the water off fast if you hit a pipe. If you have any doubt at all, isolate the relevant circuit at the consumer unit before drilling.