Ground movement is not always evident as it often occurs over several years. Telltale signs in this photo reveal the house is sinking at 1 inch per week. That may not seem like much but it cost $300,000 to repair in 1992. The dangers of living on hillside property are very real and it is essential to completely repair the slide or it will continue to move. We use a variety of retaining walls, extensive grading, underpinning and helix tie-backs to repair landslides