Nels Johnson Tree Experts is your local full service, family owned and operated TCIA (Tree Care Industry Association) Accredited tree and plant health care firm. Established in 1930, Nels Johnson Tree Experts has been providing tree maintenance, plant healthcare, tree removal, diagnostics, tree inventory and tree preservation planning, insect and disease care, mulch, and firewood to residential, golf courses, schools, municipalities, park districts, and corporate clients for over 88 years. With board certified master arborists, certified arborists, certified tree workers and certified treecare safety professionals on our team, you can be sure that Nels Johnson Tree Experts will give you and your trees the best care in the industry. Servicing Cook, Lake, Dupage, Will, McHenry, Kane, Kendall, and Grundy counties as well as Southern Wisconsin and Southwest Michigan, Nels Johnson Tree Experts is the premiere tree care company in the area. Trust the Experts: Nels Johnson Tree Experts.