Correct grading and drainage around your property can be overlooked!
The earth should slope down and away from your home. Over time the earth can settle and allow water to drain back toward the house resulting in improper grading and drainage. Also, pets digging and runoff from rain can alter the proper grading around the perimeter of the home. Make sure the grade around the home slopes down and away from the foundation to maintain a more stable soil content around the perimeter of the home and patio slabs.