Scott quickly found the issue (radiator had cracked), proposed a solution and once I'd got a new radiator, he installed it perfectly. Involved tricky installation with new brackets, different sized radiator and cramped working conditions. It looks good and works. job was more involved than anticipated as water connectors in different places involving lifting floorboards. All dealt with well. Later I did find some blackish water marks on a wall in hallway, presumably after bleeding the other radiators when refilling system it must have splashed, and scott mustn't have noticed. ive managed to sort with cleaning a spot of paint. Overall very pleased and would re-hire for future jobs if needed.