ColJack said:just out of curiosity, what is behind the blank plate above the 2 new sockets?
There was 2 single gang sockets in the room when I moved in, 1 at the back of the room (above the original socket from which I have spured off from) & 1 above where the 2 new sockets are.
As the circuit they were on was dead, I removed the 2 sockets connected the wires into a terminal block (L to L, N to N, & E to E), & then put a blank plate over the back box.