Certified Arborist. ISA commits itself to impartiality in its certification activities. ISA understands how critical impartiality is to carrying out its certification activities. ISA manages conflict of interest and ensures the objectivity of all certification activities. All persons involved in certification activities including Headquarters staff and member volunteers accomplish this through compliance to ISA’s structure, policies and procedures related to certification activities.

Johnson's Tree Care Inc Preservation is family-owned company serving residential and commercial customers throughout the greater bay area for more than 30 years. We are a full service tree care company. Dedicated to providing our clients throughout the Bay Area. with respect and outstanding tree care experience.

Scott has been involved in the care of trees for over 35 years.