jacking up a cement block house?

[jonathanteller]

I have a 25' wide bedroom on the side of my cement block house. The sand has settled over the last three decades and the slab has cracked and now slopes down 2 inches at its maximum drop (under wall).
I am planning to jack up the entire wall using 30 ton bottle jacks braced against newly poured footing. Then I will set the wall down again ontop of more footings. Does this sound realistic? What should the spacing be on the jacks? I don't want to cause more damage than good

[MtnDon]

... don't think the answers will change with a slight change of topic name....

From what I've seen of concrete block construction, and 26 years ago I had a concrete block house, any attempt to lift any part will cause cracking, probably at the joints at the very least. What part of the country? Have you looked for, talked to contractors and obtained any estimates for this type of remedial work? I know that some areas (like parts of TX) have lots of issues with foundations, and they have lots of contractors that specialize in correcting this problem. The ones to use would have insurance. How would your insurance company feel/act if you did some DIY damages?

To me, this just does not seem like DIY project.

.

[RTF]

Definitely not a DIY project. You stand a good chance of causing more structural damage. First question : Have you ever raised a structure before?

[MtnDon]

For no reason other than I have this photo and think it is pretty cool I thought I'd post it.... I think this was done by a pro....

[jonathanteller]

I have raised many wood framed houses. never block. I'm sure many people have raised block. I am trying to get info from one of those people.
It went down ...so it can come up! The question is can it be done with bottle jacks instead of "screw action hydraulic tortion piers" like the big companys use. Bottle jacks are are time consuming slow process while waiting for the new footings to cure, but i'm not lacking time. The big companies need to get it done in one visit!