Why Hire a Certified Arborist? The Gold Standard in Tree Care

Arborist vs. Tree Cutter

Anyone with a chainsaw can call themselves a tree service. A Certified Arborist has passed the ISA's rigorous exam, maintains continuing education, and adheres to a code of ethics. They practice arboriculture—individual tree health management—not just removal.

ISA Certification Requirements

• 3+ years full-time experience OR degree + 2 years.
• Pass comprehensive exam covering: tree biology, soil science, pruning, risk assessment, pest management, cabling/bracing, lightning protection, transplanting, construction protection, plant health care, identification, diagnosis.
• 30 CEUs every 3 years to recertify.

What a Certified Arborist Delivers

• Proper pruning: ANSI A300 standards—no topping, no flush cuts, no lion-tailing.
• Risk assessment: TRAQ-qualified arborists quantify failure likelihood and targets.
• Plant health care: Integrated pest management, soil remediation, fertilization by prescription.
• Construction protection: Root zone barriers, compaction mitigation, post-construction recovery.
• Species selection: Right tree, right place for longevity.

When to Call One

Mature tree concerns, storm damage, construction near trees, disease diagnosis, heritage tree preservation, legal/expert testimony, planting plans for new development.

Verify Credentials

Check ISA certification at treesaregood.org. Ask for proof of insurance (liability + workers' comp). Get written estimates with scope, standards referenced, and cleanup terms.