I hired him to power wash, sand, and seal my driveway. After the sealing dried, white marks appeared on the surface. He explained that it was a new type of sealer and wasnt sure why it happened. A few days later, he returned with a solution to clean it, but it didnt work. I reached out to him again, and he promised to redo the job, but he has yet to show up. Overall, it was a waste of money, and my driveway looks worse than before.