If floors are not even, these is one of the signs of needing re stumping done, you can notice that while you are walking if it feels like you are moving uphill or downhill. The doors are making creaking sound and windows resist to shut properly for no reason the stumps are the problem.

Humid conditions and moisture plays a part in stumps becoming damaging, as well as termites do a lot of damage to the timber, if cracks are visible in different plastered walls inside the house it is a sign of damaged stumps.

In case of floods if the water stays for a long time around the house stumps it can do damage, so therefore if not sure of any signs but you do want to know the state of your stumps, it is best to call an expert and be on the safe side.