Mark and his team were extremely accommodating! We called around everywhere and no one would come to give us an actual estimate, they just tried to explain over the phone. Mark sent someone out within 2 days to give us an actual quote, and because his associate was so friendly, we went with their company to clean the calcium build up off of the tile around our pool. Mark came the following week and spent 6 hours taking all the build up off. It was obvious with the tools and machines they had that this was something they specialize in. We just want to say thank you so much to you and your team for making things so easy for us at such a fair price!