Astonishingly, houses with finlock gutters are all over the UK, including in London. The guttering around your home is one important part of protecting it from the elements. Water tends to cause damage if not drained away. Finlock gutters can have serious effects on your home if they are no longer effectively lined or leak.
Finlock gutters within London are very rare, but there are still tens of thousands of houses in the UK that are still using them. It is safer and cheaper to look for a concrete gutter replacement in London, rather than opt for gutter repairs. If water damages your home, then it could cost thousands of pounds to repair.