Serenity Pools, L.L.C.

I hired this company to fix my pool. The job was quoted for 4-5 DAYS. It has now coming into WEEK 5! His crew damaged my driveway and my yard, left a Hugh mess that they didn't clean up. They don't answer the phone, don't return calls from messages and my pool sits incomplete and unusable. They have not been to my house in over two weeks. Where do I go from here because I am about to hire other contractors and pay them to finish my pool and do repairs on my yard and driveway andNOT pay him a single penny. In all my years this is by far the most unprofessional company I have ever dealt with.