I want to replace a ceiling light fitting, but the previous fitting is attached to the ceiling to very old plasterboard with no ceiling beams near. The plasterboard is flaking badly (up to the point where the ceiling is artexted). I am not convinced that I will be able to drill holes that will support the screws for the new fitting.
Is there a way of somehow patching a fairly small piece of plasterboard (about the size of a fist)? Is there another way I can secure the new light fitting to something that can fill the whole (still allowing the electrical cable through to power the light)?