Re: Breach of Contract by an Unlicensed Business
you would not be entitled to the difference between his price and another contractors. You are entitled to be returned to the same condition you were in before he did the poor work so what that means is a refund of the cost (if a total loss) and possibly the labor to demo his work but that couold go either way. If he caused any collateral damage, you would be entitled to those costs as well.
The installing company is liable for the damages. Depending on how the company was structured, you may be able to seek the damages from the actual owner. You cannot usually make a claim against a successor company since that company has caused you no damage.
I am not an attorney and any advice is not to be construed as legal advice. You might even want to ignore my advice. Actually, there are plenty of real attorneys that you might want to ignore as well.