A year before we decided to have a pool built, one of Anthony & Sylvan’s agents came back to us and gave a very good presentation. Once we decided we wanted the pool built, we gave them a call and they came by and gave us another presentation. We were so impressed and decided to go with them. I've used their services for pool openings and closings, and I get them periodically to test my water to make sure things are balanced properly. Their technicians are very knowledgeable, efficient, on time, and always seem to be available. When I was having a problem with D.E. not falling through my filter properly, the gentleman told me that I was not washing the pool properly and he told me exactly how to do it. I tried his method and it worked perfectly. Anthony & Sylvan is a great company and has very good customer service.