I have had Anthony & Sylvan install the pool originally, and I have never had it serviced by anyone else beside Anthony & Sylvan. I have always been serviced by them, all the maintenance and service. I have never used another pool company. Anthony & Sylvan have been the only pool company I have used to maintain the pool in regard to opening it, closing it, and heating it, and such. I have always used them to open it and close it. I chose Anthony & Sylvan for my pool opening this season because they have always opened it for me. My favorite thing about working with Anthony & Sylvan is their service. I am just very happy with Anthony & Sylvan. I would recommend Anthony & Sylvan's pool service team.