David Martel wrote:
xmp,

I think you are correct in your assessment. A contractor will know one
type of repair and will recommend it. Hire a civil engineer to look at your
foundation, look at your soil, and recommend a solution. The engineer may
refuse to actually recommend a contractor but usually they give you 2 or 3
names. Pay the engineer to supervise the work.
What's a cable lock?

Dave M.

Cable Lock is one of the ways of fixing a foundation. They run a cable
connected to some kind of drill under the house and keep on looping
cylinders (steel reinforced cement?). Each cylinder added forces the
cable/drill further down until it hits stable soil. At that point they
pour something like epoxy to lock everything in place.

The guy from Atlas kept on selling it like it was the greatest thing
since sliced bread, but that's also the only technique Atlas uses, so
I'm skeptical. In some ways, it sounded like they had a stake in the
technology itself. On the other hand, they were offering a lifetime,
no exclusion warranty on the house (automatically transfers to new
owners too).

Thanks.