DB-03Do a safety check before you drillCables and pipes can run in unexpected places, even in solid brick or block, so don't rely on the detector alone. Find your stopcock now (usually under the kitchen sink) and check it turns, so you can shut off the water fast if you ever hit a pipe. If you have any doubt about what's behind this wall, isolate the relevant circuit at the consumer unit before you drill, and only start once you're confident the spot is clear.