I've had a plasterer come and do some work for me. He forgot to mention he wouldn't do around the door frames and he's left them but there's big pieces of plaster in some of them I'm unsure how I will sand down. I'm unsure if this is normal? Some of the plastering is rough in general, can this be fixed or am I best off just attempting to sand it down please? Is the odd crack to worry about? I'm thinking of asking him to come back.