Find a Certified Arborist

ATTENTION CONSUMERS, GOVERNMENT OFFICIALS & OTHERS SEEKING CERTIFIED ARBORISTS 
Professional, qualified tree care service providers can be accessed on the ISA International website. The database is searchable by last name, certification ID#, postal code and location. Only those individuals who hold a current ISA certification are included.

SERVICES PROVIDED BY AN ARBORIST
The services provided by an arborist will vary depending on their skills and areas of expertise, but you can generally expect that most professional arborists will provide the following types of services: pruning, tree removal, emergency tree care, planting, plant health care and maintenance, fertilization, and insect and disease control. There are many other services that arborists may provide. Consulting with an arborist and establishing a plant health care plan will help determine when these services are necessary. Invest in the health of your trees by hiring a professional arborist.

HOW TO FIND A QUALIFIED ARBORIST
When searching for a tree care company, there are several things to consider before making a selection. We encourage you to consider the following criteria before making a hiring decision: certification or credentials, professional affiliations, insurance, references and the estimate/cost of the work. ISAO encourages homeowners and business owners to hire companies who have ISA certified professionals on staff. 

Our mission is to enhance and promote the care and benefit of trees for present and future generations in Ontario through education, research and awareness.