Have you got jammed doors or stuck windows? If you frequently face issues like the window is stuck or door jamming or not closing, you likely have a settling foundation. The sinking (subsidence) of a building is a common cause of misalignment of the doors and windows, leading to problems when opening and closing them.
Though sometimes, natural expansion and contraction of wood causes jammed doors and stuck windows, if the condition persists or worsens over time, the foundation should be examined immediately. If you do not address subsidence, it can exacerbate the problem and increase the cost of repairing it.