Richmond Hill Sprinklers has just installed sprinkler system for my front and back yard. I am so happy to have hired a great contractor. They are very professional. They know what they are doing. They have an amazing machine to bury the pipes like a sewing machine. Nice, clean and quick. One thing worth to mention. I have some area in backyard interlock was damaged, and the pipes happen to pass by. They fixed the damaged interlock… read more when they put back the bricks. Just that, it might cost me a couple hundred if I hire someone else to fix it. And they did it for me for free. Really appreciate! Robert is a nice and knowledgeable guy. It was so nice I can communicate with him with prompt email replies. I feel he is always beside me since I can reach him easily with email. I recall it was so hard to contact other contractors. Always voicemail, never reply. With Robert, communication is so efficient! If you happen to live in Richmond Hill or somewhere close, they should be your first choice!