Here goes. House is 1 year old. Granite steps were installed last fall. I dug down and found a 4 inch concrete slab with about 3-4 inches of clean stone "underneath." As far as I could tell by digging down the side of the concrete. They dropped about 3.5 inches from last fall to this spring. The top landing was up to where the siding corner has been notched out. They have not moved since. This is according to the homeowner. It appears that the front of the steps/slab combination has not moved. I think it is because it is outside the overdig. The homeowner wants it fix before winter. I think it might be too soon and conveyed that thought to the homeowner. Here's my best plan: Remove the slab, fillers and top step. Install a 3"x3" angle iron bolted through the foundation. Reinstall fillers, top step and slab on the angle iron. I would really appreciate any feedback on how you all would approach this situation. FYI, this is a customer with a ton of potential work so I don't want to tell them "You are going to have to wait xxx number of years if you want me to do the work." I really think they will find someone else and I would be out all the potential work. Make sense?