We had two places on the front guttering of a two-storey house where, during steady or heavy rain, water flowed vertically and was damaging lower parts of the house wall and leaking into the closed porch. From the ground, the gutter appeared to have developed holes, but Mr Milford established that the cause was distortion of the mountings, causing dips, where water was collecting and overflowing. The remedy was straightening the line of the guttering and ensuring a fall to each of the downpipes. The mountings, like the gutters, which are metal and probably from the 1920s, line the house, so this was not an easy job and was done expertly.