Fishers soil absorbs water quickly and then contracts as it dries. That cycle presses on walls and slabs year-round. Heavy spring storms add soil weight and push water toward weak points. Winter freezes widen small cracks. Homes near Geist Reservoir can also deal with higher groundwater, which keeps soil saturated longer. Poor grading and downspouts that discharge beside the house speed all of this up, and over time the result can be bowing walls, settling slabs, or water entering the basement.