Relocate socket / branch flush-mounted socket / baseboard

Hello everyone,

I want to install a new socket 4 m away from a double flush-mounted socket. The woodchip wallpaper must definitely be preserved, so surface mounting of the cable is out of the question. Since I want to lay new laminate anyway, I thought about hiding the cable (NYM 3x1.5 mm) behind the skirting board (see sketches). I want to use a simple square cable duct for the section from the skirting board to the respective socket. Now I have the following questions:

[*]to the existing socket (flush-mounted):
What is the best way to route the branch outwards?

Is it allowed to drill a hole in the edge of the plastic cover? I would then cut the cable duct flush to the curve of the socket housing.

Or do I have to drill obliquely from the outside a few cm away from the socket and feed the cable through like that? (Of course not on the side where the existing cable already runs flush-mounted.)

Are there any other alternatives?


[*]Can the new socket also be a flush-mounted box even though the branch was surface-mounted? Then I would basically need the same, as clean as possible transition (surface-mounted <-> flush-mounted), which brings me back to question 1.

Please advise. I am happy about any tips!
Thank you in advance.

Usually, a small slit is made in the masonry for both boxes (in and out) to lead the cable out sideways next to the cover. This usually works quite well with a screwdriver without a hammer. You can cut the box with a utility knife. (Sometimes there are already breakouts prepared that you only need to break out) Or you can use a normal continuation. Then the cable comes out a bit further away from the box. It just doesn’t look as "nice". Good luck...

Look up "Zwischenstecker" on Aunt Google

This is how I did it here in our rental apartment. Cables neatly laid in a small channel. Often you can try it from the room behind the wall as well. So I went from the living room in the corner through the wall into the bedroom and then had power in the corner for TV and Hi-Fi.