Since you’re going to have to deal with the run from the switch to the new switch you could connect the switch line in either ceiling or floor with a wago (or any maintenance free junction) and lose the existing switch box altogether.
1.5mm twin and earth would be pretty routine a switch line and yes you do just put some brown sheath on the neutral.
Since you’re going to have to deal with the run from the switch to the new switch you could connect the switch line in either ceiling or floor with a wago (or any maintenance free junction) and lose the existing switch box altogether.
1.5mm twin and earth would be pretty routine a switch line and yes you do just put some brown sheath on the neutral.