Should I try and smooth it out with more plaster over it (seems to be a bad Venetian plaster job) or sand it down until it’s smooth?

Start with all purpose joint compound, spread a coat thick enough to cover most of the texture for first coat. Then re-coat again, you may want to do a little bit of sanding first, but it is not necessary to do a lot. Apply another coat of joint compound, dragging this one a little tighter than the other two. If it isn’t as smooth as you would like, do another skim coat. Then sand. Often these projects take four coats and some touch up. But all you hvve to do is keep coating, soon it will be smooth.

your best bet is to find some one to work with try an agency like breeze or bis its not really something you can practice on the job ..ask a mate to help you ..

own van and tools reliable and honest
i don’t know where bridgend is but i wish i lived there. been looking for an honest builder for ages needed loads of work doing,ended up paying shed loads of money for crappy work just my luck.now i need a man with a drill….i wish you all the best

I need a rough price on a plastering skim over The bedroom ceiling has got a thin artex stipple and the walls are solid walls with a few hair line cracks size is roughly 10feet x10feet .Many thanks in advance
You have approx 9m2 ceiling and 25m2 for walls. Total 34m2 The ceiling will have to be checked for asbestos content, this is not to alarm you but if chrysatil is evident then removal by a specialist contractor will have to be used or bond and set the ceiling. The walls and ceiling will need a PVA sealer prior to plastering. A realistic price would be between £500- £600 according to the removal of ceiling.