Bobby and George were very professional and courteous. They did a great job at my home and all the patios look amazing. They even got up on the roof and showed me pictures twice of the moss balls all over the north face. So we added it on to get it all complete and cleaned out the affected roof gutters. They were very timely and consistent. The sealer they used is rated for 5-years and they did extra coats and other areas not originally planned to use it all up. So great job and thanks guy