Best Code Upgrades in Houston TX

I have a leak that has caused the ceiling to collapse. They sent a plumber out and he could not find a leak. So the plummers sent out an a/c repair company. The a/c repair company came out and said it's definitely a plumbing problem. So today the plummers have come back out again and said that it's a plumbing problem but they are not allowed to get on the roof. I can see the pipe under the a/c unit just open it and fit it. Nope they can not open it cause he can't get on the roof. There has been nothing but back and forth with this company and pointing blame at the other company. I need a leak fixed that is all yet no one seems to want to fix it. Today when I asked the plummer who is going to fix the drain he just said my home warranty will have to figure that out. Thos has been going on for 3 weeks now.