Extreme home handyman

Mike did the work under the house incredibly fast. I couldn't believe he got everything done down in the crawl space in only a few days, but he said he had a small crew so I believed him. He did do all the interior painting correctly and any other small outside repairs. However the plumbing he did both in the bathroom and in the crawl space plus his work on the support beams was extremely shoddy. Two years later I had to have over $3,500 worth of work done to correct what he did improperly. He didn't repair the shower correctly. there was cracked tiles all because of shoddy work. All the plumbing was leaking and he was the one who installed all the pipes, so it was due to his poor workmanship. There was a crack in the shower pan because he installed sub flooring incorrectly. All the joists were replaced incorrectly. All plumbing repairs were done without finding the source of the problem, so they were temporary fixes. The supports for the house were placed on soft dirt rather than on something firm like concrete. He also braced on rotten peice of wood and there was a six inch piece of joist missing below the subflooring for the bathroom. The new contractor had to replace 7 joists because he installed them all wrong and had to replace the rotten wood.I'M WRITING THIS TO PREVENT OTHERS FROM BEING BURNED. NEVER USE MIKE FOR ANY PLUMBING OR BASEMENT, CRAWL SPACE SUPPORT WORK. I don't know why this is in the Windows category. This is in regards to plumbing, which I tried to change.