stephen beale
Hi Victoria Just to add to Jason's advice providing your radiator valves are able to completely close (they sometimes let a small dribble by) then you only need to turn them off and disconnect (from radiator connection only leaving valve attached to radiator feeds) and drain the water from that radiator, no need to freeze or drain down whole system and then lift radiator off wall and then remove brackets then replace screws into existing holes for ease of working plaster around bracket position and leaves you exactly the same position when replacing radiator after plaster has dried and you have decorated.