Investigate and repair a continuous water leak from a small external pipe near the roof/guttering at the front of my house. Water has been flowing steadily from the pipe for some time. I have a Worcester Bosch Greenstar 30Si Compact combi boiler, with normal pressure (around 1.5 bar). I’ve switched the boiler off, but the water continues to flow. There is pipework in the attic directly above the boiler, although I’m unsure whether it’s connected to the leaking pipe. I need an experienced plumber or Gas Safe registered heating engineer to identify the cause of the leak and repair it. Photos and videos available.