About Us
Serving Orange County, LA, Riverside with expert tree consulting, healthcare, and risk assessment services since 1984.
Trusted Certifications & Professional Affiliations
At OC Arborists, we take pride in our commitment to industry standards and professional excellence. Our team holds respected certifications and maintains memberships with leading organizations in arboriculture and property management:
About OC Arborists, Inc.
Rooted in Science. Driven by Purpose. Serving Orange County Since 1984.
At OC Arborists, Inc., we believe trees are more than part of the landscape—they are living assets that deserve expert care. For over 40 years, we’ve proudly served homeowners, HOAs, commercial developers, and municipalities with science-backed arborist services that preserve, protect, and enhance Southern California’s urban forests.
Our Mission
Our mission is to promote healthy, sustainable urban forests through education, ethical practices, and science-based arboriculture. We are committed to helping our clients make informed decisions about their trees—prioritizing safety, longevity, and environmental stewardship in everything we do.
Meet the Team
Certified Professionals. Passionate Stewards of Tree Health.
At OC Arborists, every consultation is led by highly trained, ISA Certified Arborists and Qualified Tree Risk Assessors, ensuring that your trees are evaluated with the highest level of expertise and care.
Fred De Maria – Owner & Lead Certified Arborist
Our Support Team
From scheduling assessments to preparing professional arborist reports, our support staff is trained to provide clear communication, prompt service, and dependable follow-up.
Our Approach
Consultation First. Preservation Always.
We don’t sell tree removals—we offer expert guidance to protect your trees and the people around them. Here’s how we approach every project:
Trusted by Orange County Since 1984
OC Arborists is honored to work across:
Irvine, Westminster, Huntington Beach, Santa Ana, Costa Mesa, Anaheim, Fullerton, Tustin, Garden Grove, Orange, and more.
From one tree to a full property, we’re here to help you make the right decision—for your trees, your safety, and your long-term property value.