Hi, we are doing a full renovation at the moment and the electrician started a full rewire in mid January, and is only just about to get it tested today. However, I have been under the floorboard upstairs and noticed this (image below). Is this kind of thing normal for a full rewire? I always thought that proper junction boxes should be used. We have not been too impressed with his workmanship overall, but things like this don't seem safe, and want to address it before he is paid in full. Any advice welcome.