If you're electrician is adding new sockets, additional lights like downlights or is just adding new wiring in general then they need to make sure your RCD is of the correct 'Type'. This helpsheet talks about the difference between Type A and Type AC RCD's and why it matters which one your electrician uses.
Watt & Co. Electrical - Electrician in Corsham covering Bath and West Wiltshire
Take Care When Selecting an Electrician!!
Many Electricians in Bath and West Wiltshire are simply not interested in small electrical works. They want the choice jobs, and will drop you like a hot potato when a bigger, supposedly more lucrative, project comes in.
Others advertise as electricians having no qualifications. They thrive on the basis that you don’t understand what they do and, as a result, overcharge for shoddy, and often dangerous, work.
I set up Watt & Co. Electrical in order to fill a gap in the domestic sector. I want to provide you with a quality service that provides you with exactly what you need from an electrician.