A local contractor needs to look at it before repair costs can be determined.

Somewhere between $1000 and $10000. Seriously though, often we find that these aren't over proper foundations either, so we have to support the load on the post, remove the existing post, cut open the slab, install new footers several feet deep, then install a new custom steel post. I would start with a structural engineer if you are serious about the property.

IMO the ones you show have no footings that would not pass inspection whereI lve and they also have no way of adjusting them these are not right and you will IMO need to replsce them all with the proper posts and footings.

Patricia:

The footings would have been placed before the basement concrete was placed which covered them. I've heard of placing the adjustment at the bottom so it will be covered by the basement concrete. These could be fine.

My son just had this done. I jack hammered around the post first by locating the footing with a drill, I assumed it was 2 ft square, it was a rectangle, once you find the edge it is easy to expose it. Then I hired a mason to replace the 4 posts. One post was mounted on a block of wood on top of the footing, which cause the beam to warp slightly over 50 years. The other footings were a solid 12' inches thick of concrete and 2.5 ft x 2ft footing. The mason I used is not cheap but he is good, has done work for me before. It was $3100 to replace 4 and re concrete the holes. I made one hole way to big so the cost was about $400 more, I made the holes about 4" wider than the footings except on the one i carried away with the first one.

The mason took about 2 days. i got another quote at $1200 for all 4 he was going to just cut the columns off and slide in new ones. The footing need to bee looked at, the lally's and footings are the most important part of the house. I got another quote for $3600 but he want to put in new footings between the old ones and just cut the old post, the problem with that is that footing and columns are usually put in strategic support areas of the home, didn't want to mess with that as the the home isn't falling down.

Hi there do you still have the contact info for the contractor you used?

864 325 1186 CONTRACTORS

The pole should not be sitting on the concrete floor because that causes rust and rot , they should be sitting on some rubber pad then sit the pole on top .

"The pole should not be sitting on the concrete floor because that causes rust and rot , they should be sitting on some rubber pad then sit the pole on top."

I cannot find this specification anywhere and am guessing that is due to the compressive nature of rubber. Columns are specified to be encased in concrete.