SP-05Check for pipes and cables before you drillRun a detector over the whole wall before drilling — cables and pipes can run almost anywhere, not just in the usual safe zones, so treat every mark as a possible hit and still expect something to be there until you've proved otherwise. Find your stopcock (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're at all unsure what's behind the wall, isolate the relevant circuit at the consumer unit before drilling.