If the work was done five years ago, it may be too late to take action. The statute of limitations is how long you have to file a lawsuit; once the statutory period has expired, you may no longer sue. The relevant statutes of limitation for this sort of action are those for breach of contract (not doing the quality of work they agreed to do) or for fraud (lying about what they could or would do). The statute of limitations for contract cases is 4 years in your state; for fraud, it is only 2 years. If the work was done 5 years ago, it is likely therefore too late to file a lawsuit; they could likely get any such case dismissed on statute of limitations grounds.