Hi, I'm having a major headache.

I live in a 60's built maisonette, and have discovered that none of the
upstairs sockets are grounded. I was replacing a couple of socket
plates a while ago, and noticed there were only two wires (RED & BLACK)
connected to the appropriate terminals within the socket, but no earth
wire. The red&black wires disappear down a conduit pipe which appears
to be metal. Downstairs however all seems fine and the electricity
meter & fuse box are both grounded from the outside.

Is this sort of thing easily sorted or are we talking major rewiring
(and expense)? Would stuff have to be ripped out of walls?

Any help would be really appreciated.

Bart