CR-06Check for cables and pipes, then drillBefore you drill anything, find your stopcock (usually under the kitchen sink) and check it turns, so you can shut off the water fast if you hit a pipe. Run a detector over every mark, but treat it as a guide, not a guarantee — detectors miss cables that are deep, in metal conduit, behind metal-backed board, or outside the normal safe zones, and a metal stud frame can confuse cheap detectors further. If you have any doubt at all, isolate the circuit at the consumer unit before drilling, and turn off the water at the stopcock before drilling anywhere that could carry water. Once you're confident, drill each mark to the depth and bit size worked out for your wall.