It is not a a new installation. So it is a fitting job and anyone who is 'capable,'should not find it the least bit difficult to complete. An electrician will not want such a small job. It is a job for a capable handyman.
At best there will be 4 screws on the faceplate and possibly another four in the back of the box.
At work at the moment .. have just been watching electricity jump 2m across a room.
Granted it was 600,000 volts. Do you think I would be okay to touch it with the end of my finger ?
8-)