u/CatchAffectionate796

What is a polite way of saying to your neighbour in German to tell him/her to mind their own business? or is there a polite way of saying Piss off/Go away?

I received a bathroom renovation quote and basically all the work (without bathroom fittings, bathroom furniture and materials) comes up to about 11K EUR and was wondering if anyone has done a similar thing so I can sense check that the amount is about right. I know it depends on how much renovation you are doing but basically for mine it is the whole bathroom.