UR-03Check for pipes and cables, and find your stopcockCables and pipes can run almost anywhere in a kitchen wall, especially near sockets and under worktops. Sweep the whole fixing area with a detector, but still treat every hole as if something could be there — detectors miss deep cables, cables in metal conduit, and anything behind metal-backed plasterboard. Find your stopcock now, usually under the kitchen sink, and check it turns freely so you can shut the water off fast if you hit a pipe. If you have any doubt about what's behind the wall, isolate the relevant circuit at the consumer unit before drilling.