B&S Dev Contracting

Summary at the bottom
I hired this contractor and I am rather dissatisfied with his work. The day prior to the construction, he calls to confirm that he would arrive at 8 in the morning.
He showed up half an hour late. Not that big of a deal, but considering I took the day off work and it’s your business, it’s a bad move to show up late. Before the contract was even signed and before any (partial) payment was made, his crew already began their work. This might be seen as efficient, but if I had changed my mind, there was no going back.
I monitored him on a regular basis to make sure that the work was being done correctly. It was just redoing the cement, which required breaking the old ground, removing it and then putting in the new cement and making it look good.
When he began putting in the cement, I began making suggestions as to how I would like it to be done. On the day that we agreed to do the work, I said I would like a little slant, so that the rain would go into the street. After he was done, it is a SIGNIFICANT slant. At the highest point to the lowest point is about a 4 or 5 inch difference, which is pretty significant since it was only 15 feet across.
On the edges, sidewalk and border of neighbor’s house, he did not seem to care about how it was done. He let it spill over to my neighbor’s house and barely did anything for the sidewalk. I asked for it to be raised, and higher than the sidewalk level. He put some old boards to make everything raised (starting with the border). One member of his crew began to make the lines. I pointed out that the lines were uneven and suggested changing the board. The crew member said «There’s nothing I can do» while right behind him lay multiple boards being unused.
In the middle of the project, he asked to use my power saw to remedy something on his truck. I don’t see why I have to let him wear and tear on my tools because he didn’t properly take care of his assets.
He was also too slow with the cement. He suggested that we make lines. He used a board to place himself in the center to create those lines. He waited too long and at the end of the project, the boards had left lines that are still visible in the cement today. It was also hardening at the time he was making lines. So hard, that he needed to use a hammer to strike the tool that made the lines. Did he have a hammer? No. He, again, requested to borrow another one of my tools.
At the end of the day, everything was poorly done, he ignored most of my complaints and suggestions. He even had the nerve to say that I changed my mind 5 times. I had to pay him for the job, which he said he only charged for parts and labor. He stuck out his hand, which I thought was for a handshake. He loudly and rudely said «NO TIP?!»
TL;DR (Too long, didn’t read) — Showed up late, disapproved of my suggestions, did not have the proper tools had the nerve to ask for a tip for a shitty job.