I saw Thrasher s ads on TV, and checked with local contractors and the Better Business Bureau. They were highly recommended as having the most expertise in the business. I had calls from several people in the office at different times and always knew exactly who was going to be coming to my house and when. They explained the process they would be using and gave me good brochures on the process and the company. They were successful in raising the slab, but they made sure I knew they might just be able to stabilize it.