I’ve used Anthony & Sylvan for pool opening and closing and for bi-weekly service. It's my second year with them and they always show up on time and do a nice job. I would ask if they do a couple of things, like cleaning the filters once, which might not have been a routine thing but they did it for me anyway. The people that'd come out are very friendly and they clearly know what they're doing. They've been quite good. Next year, I'll make my service weekly.