Dear Rita: I doubt that a home-owner can buy insurance to protect against an incompetitant builder, but the contractor should have liability insurance to cover negligent acts of employees. Someone suggested going to the regulatory agencies in the location of the problem. That approach along with calling the local television station, just might result in quicker action to corect the problem. An attorney should also be aware of those options.
Yours Truly, Clifford Wilson [Non-text portions of this message have been removed]