As I mentioned in another thread, my deck seems to be moving slowly down the hill in back of my house. In doing so, the uprights are splaying and the deck rafters (joists? whatever) are coming loose as the nails are slowly being pulled out where they penetrate the perimeter lumber and enter the joist ends. I'm feeling like this may be over my head, maybe not, but since I don't know, it seems that way. Who the hell do I call? Intuition tells me I may need a retaining wall so this won't happen again. But my intuition is often way off base. Of course, it took 20 years for the deck to get like this, so maybe I could just jack up the deck, move the uprights (and the concrete they sit in... can you do that?), and hammer things back together, maybe adding some of those joist hangers on the one side that is coming apart and that didn't use them (the other side attached to the house has them). That still leaves the patio slabs that are also moving. Mud jacking? How much is that? Will all this stuff continue to slide down the hill if its fixed without installing a retaining wall? How complex is a retaining wall? Can they create problems with drainage, maybe saturating the dirt behind the house and actually making the problem potentially worse if the wall ever "gives"? And what about the sewer and irrigation tubes that the wall would straddle? Can you just plunk a damned heavy stone wall on top of all that stuff? Damn, my head is spinning! What would you do? Who would you call first, second, etc.? Insurance company, carpenter, landscaping, structural engineer, all of the above, who? I figure if I call a landscaper that builds retaining walls, they'll recommend a retaining wall (duh!), whether I really need one or not. Reminds me of when I went to a surgeon asking if I should have surgery, he reminded me that he was a surgeon, and that's what he did, at least that was honest of him. A carpenter won't necessarily know if I need a retaining wall since he's a carpenter. Right? A structural engineer sounds expensive, but would probably know about all of the stuff involved, the hill and earth movement, the disintegrating deck, the moving and spreading patio slabs, everything. Right? Overkill? How much $ for one of those guys? If I start calling these people, and getting estimates, how do I know they are reputable? I don't trust BBB, as I've had bad experiences with them before. IMO they are a joke. I know this is probably basic stuff to some of you DIY seasoned and trial by fire home owning commandos, but believe it or not, this is my first house and I've never really had to deal with any of this kind of stuff before. Since I'm probably the only person in Missouri who has earthquake insurance, should I call my home owners policy people and ask them if I'm covered for "moving earth", which is how I think it is stated in the policy. If they said yes, can they typically recommend some reputable people and a reasonable course of action? Should I even trust them? They're conflicted, right? Ain't it wonderful owning your own home? I keep having visions of the Tom Hanks movie, The Money Pit. Man, I've got to get beyond the hand-wringing phase on this thing. Help me DIY'ers, please.