can anyone advise on cutting out a door on a wall the builder says i can get it done wet or dry he says wet is a bit messy but dry is very dusty i am adding on two on suites onto 2 end bedrooms in a bungalow how will i go about minamising the damage done to both rooms ie furnishings and carpet is it advisable to take up the carpets as i do want to re use them either way it is going to be messy but is there any advantage of one over the other