Also, do you fit skirting boards flush to the floor?
You can remove your existing skirting boards and either re-install them flush against the floor boards at the new floor level, or choose some new skirting to install. This will require you to repaint your wall, otherwise you can opt for a taller skirting board to cover just over the old wall skirting line.
Regarding this, how do you cut a skirting board with a coping saw?