Workers Compensation Insurance provides important protection for homeowners in Texas.
If your contractor does not have the insurance, you are liable for injuries incurred on your property, even if you have the contractor sign a waiver. A contractor can not legally waive the employees right to sue you. Your only protection comes from a contractor who carries Workers Compensation Insurance.
Be certain to get a current copy of the policy before allowing any foundation repair company, or for that matter, any other contractor to perform work at your house.