I am about to have part of a downstairs utility room converted to a shower/cloakroom and need some advice on wiring for an extractor. Given that this space only has some wall sockets ( house recently re-wired) I am at a loss how to supply electrics for the light/shower/extractor without removing the cieling to expose and run cable from an existing ceiling light. Can anyone advise what my options would be. Is it possible to take what i need from the existing socket circuit.