Painting windows, doors and skirtings that are previously varnished

Yes it can be done but to have a nice finish will take a hell of a lot of stripping and sanding once done prime each bit of wood and sand in between coats it will cover any defects or stained parts of the wood and it will give you a nice professional finish. As for the Windows they will look fine I advise painting a coat and letting it sit for a week to dry before applying another coat.

Hi there, yes this can be done. There is another option to stripping which is to use a sealer paint product such as Zinzer, this is a shellac based paint which will cover over the varnish. Although you don't actually need to sand the wood first I would advise you do then clean after with methylated spirit. You can then simply apply the sealer as a first coat then an oil based undercoat and 2 coats of oil based top coat. If you are doing this yourself this will save you a lot of time and is also cost effective, the end result also looks great. With the windows, if they are rubbing as they open and close it would definitely be worth getting these planed first so they fit correctly, this will stop any damage to the paint. Hope this helps, Kind regards, Richard