I interviewed three different companies when I decided I was going to coat my garage floor. Of the three, Sledge was the only one that quoting me not using diamond grinding. I was a bit concerned about that at first but then they explained this was the format they have used for years with great success. With that said, they did tell me they can do diamond grinding if I like but it simply costs more and has the same lifetime warranty. That seemed like a no braininer to me so I went with them to install. Wow...I am simply amazed! The two separate crews that came out were awesome. They were all super friendly and made sure everything was cleaned up and respected my place. One last time I have to say, my garage floor looks great. Oh, and they custom made my floor with specific colors I asked for. You can’t beat that customer service. I’ll be honest, right now I am the envy of my neighborhood. I have had numerous people stopping by to simply marvel at it. Thank you very much...I love my new garage floor!