Symptoms of Failed Stumps Apart from the possibility of eventual total house collapse, there are many other more subtle signs that stumps under your house are failing. Windows and doors are hard to open Door locks are not in correct alignment Floors are not level or slope Cracks in your cornice or internal walls Vibrations in your floor when you walk Things roll across your floors Cupboards shake and rattle Furniture falls over and things fall off walls If left uncorrected, t