[dad911]

Are these guys working for you or the builder?

For 60k you could have both probably had new foundations. Temporarily support house on steel beams, build a new foundation, and remove steel. It's not that hard, really. My father moved a few houses this way in the sixties to make way for a new highway. I know contractors that do this to turn crawl spaces into full basements, and have moved or raised houses out of flood areas.