I used to use Costanza Landscaping, located in Livingston. They do a lot in Short Hills/Millburn as well. They were very good. I stopped using them only because I decided I wanted to take care of my own yard, but if I ever change my mind, I will definitely go back to them. Joe Costanza is very knowledgeable, as is his dad. His dad's english is not great and I dont understand Italian, but he still manages to get the message across when he sees me doing something wrong or right. They still work on my neighbor's property and still give me a lot of advise, even though I dont use them anymore. His old Italian dad actually seems to really respect the fact that I am out there working my butt off.