Phil
Electrician or not!
Is the person doing your electrical work qualified and registered to carry out electrical work. Non compliant work could cause fires or worse. We were asked to check some work a builder had carried out, he said his electrician was going to sign it off. Many items were found to be incorrect and unsafe. Always ensure that the person doing the electrical works are qualified to do so.
https://www.niceic.com/householder/find-a-contractor-results?n=Electrical-Matters