What Is an ISA-Certified Arborist?
Trees are living, complex systems, and caring for them safely requires more expertise than most homeowners realize. An ISA-Certified Arborist is a tree care professional who has earned certification through the International Society of Arboriculture (ISA), demonstrating advanced knowledge in tree biology, pruning, safety, risk assessment, and long-term tree health.
At Corvallis Tree Care, every assessment and major service is performed by an ISA-Certified Arborist—ensuring your trees receive the highest level of professional care backed by proven science and industry standards.
Why ISA Certification Matters
ISA certification is more than a credential—it’s a commitment to safe, ethical, and science-based tree care. Certified arborists must:
- Pass rigorous written and practical exams
- Demonstrate years of field experience
- Follow a strict code of ethics
- Maintain continuing education
- Stay trained in the latest industry standards and safety protocols
When you hire an ISA-Certified Arborist, you’re choosing someone qualified to diagnose issues, recommend the right solutions, and protect both your trees and your property.
When You Should Hire a Certified Arborist
Homeowners and property managers often contact an ISA-Certified Arborist when they notice:
- Storm damage or cracked limbs
- Trees leaning unexpectedly
- Signs of decay or pests
- Overextended limbs near homes or driveways
- Rapid changes in canopy health
Certification ensures the person evaluating your tree understands not only what’s happening, but why it’s happening and whether remediation is possible.
How We Apply ISA Standards at Corvallis Tree Care
Every assessment includes:
- Visual inspection from the canopy to the root zone
- Evaluation of structure, health, and site conditions
- Identification of hazards or defects
- Recommendations for pruning, cabling, treatment, or removal if necessary
This process ensures accurate diagnoses and safe, effective solutions tailored to your property.
Is ISA certification required in Oregon?
No, but it is the gold standard in arboriculture and ensures you’re hiring a trained, ethical professional.
Does ISA certification guarantee better tree care?
Yes—certified arborists follow science-based practices proven to improve tree health and reduce risk.
Do ISA-Certified Arborists cost more?
Not necessarily. They often save you money long-term by preventing avoidable failures or removals.
