I am converting my attic. building regs sorted. There is a radial circuit for the sockets to a specific breaker in the Consumer unit and the lights are attached to the upstairs circuit. I need to move the existing sockets and lights / switches as the layout is changing. I may need to replace some wiring because of the moving, Am I allowed to do this work or do I need to get an electrician. As I understand it I can add new sockets and lights and I can replace a damaged cable under the new regs.