I own a Victorian mid-terrace which has a cellar. It's rented out and the tenants have mentioned that the cellar lets in a small amount of water when it rains heavily. It always did this when I lived there, all the houses in the row did the same as clearly the water table is close to the foundations. It never bothered me and always went away very quickly, no apparent problems with damp in the house.
Has anyone had experience of this and has anyone bothered to waterproof their cellar? If so, what was involved? Thanks!