I live in the middle of a fairly steep hill. Downside is my driveway. Holding the driveway in place is a retainer wall approximately 4 feet high by 50 feet long. The wall is tipping and I have about a 4 inch space between the concrete driveway and the wall. The wall is the end of the backyard to a neighbors house about 50 feet downhill. If the wall goes, so does my driveway and possibly my house. Who do I call to repair? Is there a specialist? Costs? Any info / ideas are appreciated. I don't think it will survive a winter here in Pennsylvania. Homeowners insurance?
Thank you, Thomas.