HLI are certified tree service experts servicing Riverside, Rancho Cucamonga and the surrounding areas. Some of their services include tree trimming, tree removal, stump grinding, crown & height reduction to residential, commercial, and apartments. HLI Tree Experts provide many ways to save! They are 10% more affordable than any other tree service companies and they also offer senior discount deals. Why not save money with one of the top skilled experts in tree services.