This summer A-1 totally updated my yard sprinkler system including the full replacement of the valve manifold array. Justin also brought us up to speed with a new Rachio controller/timer that is fully operational by phone. It takes the hassle out of sprinkler diagnostics and remote schedule modifications. Justin was efficient and non-intrusive, with minimal disruptions and at a very reasonable cost. I'd fully endorse A-1 for your irrigation system needs.