Common cause of a leak ceiling. Whenever there is an enquire about a leaking ceiling the first question the come to mind is, what fixtures are in the room above, i.e. a bathroom? It’s quite common for a leak to appear in a bathroom. Because a bathroom contains more plumbing fixtures than any other place in most homes. One of the most likely candidates for leaks that affect ceilings are, leaks under baths. However, this is not always the case. Leaks can also be found at the wash-hand basin toi...