l have always had a problem with the guttering overflowing at the front causing my garden to flood so last year l had new guttering and downpipes installed but the problem persists. I am at the end of a run of 5 terraced houses. I can see that the contractors cut off the original downpipe just above ground level and inserted the new downpipe into that.
Since l know nothing about drainage l am assuming that the surface water runaway is blocked but how can l check without getting a digger in :?