60 years of trusted tree care expertise.
Family-owned arborists serving the Quinte region with Certified expertise, commercial-grade safety, and a commitment to your property.
Six decades of expertise rooted in the Quinte region
O'Brien Tree Service started as a family commitment to safe, professional arboriculture and has grown into a trusted partner for residential, commercial, and municipal clients across Eastern Ontario. Today, we bring the same dedication to quality and safety that defined our early years to every project, no matter the scope.
Trusted by local organizations across the Quinte region
O'Brien Tree Service partners with municipal governments, construction associations, and community organizations to support safe and sustainable tree care throughout Belleville, Kingston, and surrounding counties.
Trusted by Residential and Commercial Clients
Homeowners and property managers across the Quinte region rely on O'Brien Tree Service for professional arborist work and expert tree care.
O'Brien Tree Service removed a dangerous oak that was threatening our home. The crew was professional, efficient, and left our yard spotless. They explained everything upfront and delivered exactly what they promised.
Robert Mitchell
Homeowner, Belleville
We hired them for storm cleanup after a major windstorm. They arrived quickly, assessed the damage professionally, and removed multiple fallen trees with expertise. Their crane operator was skilled and careful around our property.
Jennifer Wong
Property Manager, Kingston
They handled our lot clearing project with precision and safety. The team was punctual, communicated clearly throughout the work, and their equipment operators knew exactly what they were doing. Excellent commercial-grade service.
David Thornton
Commercial Property Owner, Quinte West
Their ISA Certified Arborist evaluated a hazardous tree on our commercial grounds and provided a detailed assessment. The removal was executed safely and professionally. We've since engaged them for ongoing tree maintenance.
Susan Petrov
Facilities Director, Napanee
Built on 60+ years of trusted tree care
O'Brien Tree Service has earned its reputation through consistent, safe, and professional service across residential, commercial, and municipal projects throughout the Quinte region.
60+
Years in business
Six decades of family-owned service and continuous expertise in arboriculture and tree care.
5
Service regions
We serve Belleville, Kingston, Quinte West, and surrounding areas across Hastings and Northumberland Counties.
100%
Fully licensed and insured
Complete licensing, WSIB compliance, and insurance protection for all residential, commercial, and municipal work.
Let's discuss your tree service needs
Contact O'Brien Tree Service today for a free estimate. We serve Belleville, Kingston, and the Quinte region with professional, insured arborist care.