We had Anthony & Sylvan build our pool, then we stepped outside and gone to another company once for closing and once, I let my husband do it. But I decided that I preferred Anthony & Sylvan. I have them handle the opening and closing, with the occasional troubleshooting. They are responsive, courteous, very knowledgeable and professional. They are also helpful and explained what they were doing because we were interested in understanding the process. They didn't just come in and closed the pool. They were willing to entertain us by sharing what they were doing with us when we asked.