These gutters on a house in London W6 had obviously not been cleaned for quite some time. There was so much muck in them the rainwater had nowhere to go but over the sides. It took our professional gutter cleaners an hour to clear them out. We then checked that no brackets had broken and that the seals were okay, then we washed them through. Now the rainwater runs away to the downpipe and they don’t leak. Job done!