SB-03Find your stopcock and check for cables and pipes before drillingBefore you drill, find your stopcock (usually under the kitchen sink) and check it turns, so you can shut the water off fast if you hit a pipe. Run a cable and pipe detector over the marked bracket positions, but still treat every hole as if something could be there — detectors miss deep cables, cables in metal conduit, and anything outside the usual safe zones near sockets and switches. If you have any doubt, isolate the circuit at the consumer unit before drilling, and turn the water off at the stopcock before drilling anywhere near a kitchen or bathroom pipe run.