"Charlie" wrote in message
m...

It occurs to me that the simplest way is to install brand new ring
circuits and then connect up to the consumer box when complete, at the
same time removing old connections and then removing the old
cables/sockets.

Assuming you have metal back boxes and large holes in
the skirting board, I wouldn't expect to be able to reuse
the boxes, and you will also want new skirting board.
Making a route for the cable with the old skirting in
place might be time consuming.