When trees grow too close to a foundation, they can heavily affect the moisture levels in the underlying soils. The root systems extract substantial amounts of water from the soil, leading to noticeable changes in volume like shrinkage and swelling. As a result, unsupported sections of the foundation may experience settling. To address this issue, you have options such as adjusting watering patterns, removing the tree(s), or considering the installation of root barrier(s) to mitigate the influence of trees or shrubs.