One way to keep the cost of foundation repair low for the contractor is to not pay for insurance.
As a homeowner, you need a foundation repair company that has current insurance: both Workers Compensation and Liability Insurance. In Texas
the cost of most Workers Compensation Insurance policies run about 8% of wages.
It is not mandatory that the employer insure his workers against on the job accidents. Most accidents occur at the job site, on your property. You, the homeowner, could be held liable if a worker is injured while working on your house.
Liability Insurance is also not mandatory. I am not going to speculate as to what may go wrong during foundation repair. Suffice it to say that Granite Foundation Repair carries liability insurance for $1,000,000 per occurrence. A million dollars of insurance to cover the unforeseen. Liability insurance runs $1500-2000 per month.
As a condition of ongoing membership in the Foundation Repair Association, Granite Foundation Repair, Inc. carries both Liability and Workers Comp Insurance.