i've got a bathroom extractor fan that needs wiring up i'm aware that by law i'm not allowed to do this work myself so i'm going to get a proper electrician to do the work, the fan unit is fitted and the isolator switch is in position it only needs the wiring connected, i've never had any electrical work done before so i was just wonder roughly how much should i expect to pay to have this done, i just need some idea so that i don't pay over the odds