Certified Arborist List

City of Spokane R.O.W. Tree Services
with ISA Certified Arborists

Any person retained to prune, plant, or remove a tree in the public right-of way must be a certified arborist and be licensed to perform commercial tree work by the City of Spokane. Permits are required for commercial tree work in the public right-of way. Certified arborists are individuals who have achieved a level of knowledge in the science of tree care through at least three years of work experience and have passed an examination on a variety of tree care knowledge. Certified arborists perform a wide range of tree management services. Not all arborists provide all services, or are experienced in them. The following companies and individuals may provide these and other tree care services: tree pruning, planting and removal; cabling; fertilizing; root pruning; vertical mulching; diagnosis and treatment for pests and diseases; tree appraisals; hazard tree evaluation; and stump removal. Good arborists will only perform accepted practices. Practices such as topping a tree, removing an excessive amount of live wood and using climbing spikes on trees that are not being removed, are not accepted practices.

As with any professional service, we encourage you to ask questions about licenses, insurance and check references. Hiring a certified arborist does not guarantee proper tree care, but it is one step you can make to improve the proper care and ongoing health of your trees.

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