What is an ISA Certified Arborist? Why would I need to hire one?
A. Certified arborists are individuals who have achieved a level of knowledge in the art and science of tree care through at least three years of professional experience and have passed a comprehensive examination administered by the International Society of Arboriculture (ISA). By choosing an ISA Certified Arborist you have ensured that the persons performing the work in your landscape will adhere to the latest professional standards. Q. Can Urban Forestry recommend an Arborist? A. Vancouver Urban Forestry cannot provide a list of tree companies/arborists. We recommend you visit the Pacific Northwest ISA website or look under Tree Service in the phone book and contact at least three ISA Arborists. Always hire an ISA Certified Arborist and stay away from companies that advertise or recommend “topping”. Professional arborists do not recommend topping because it is not an effective long-term method of reducing crown height, it is more expensive in the long run, creates hazards, and makes