My house in chandler ,arizona puddles water during heavy monsoon rains. We have no basement. We just moved in. Can the previous owner be held liable for the repairs? If we were to repair it, what is a surefire way to seal up leakage. The walls are not wet, what are the chances that it is a plumbing issue? If the concrete slab were dug out and sealed with new concrete would that insure moisture entry. It will not be a convenient repair because it is under a staircase. the house was built in 2004.