Cutting Edge Service With Old Growth Values

Twenty-three full-time employees. Three ISA Certified Arborists. Two Certified Treecare Safety Professionals. One qualified pesticide applicator. With our expert team, fleet of specialized vehicles and complete collection of state-of-the-industry equipment, Newbury Park Tree Service is standing by to serve Ventura and surrounding counties for all their tree care needs.

Newbury Park Tree Service was founded in 1989 by Dean Lappinga, an arborist who is certified with the International Society of Arboriculture (ISA) and accredited by the Tree Care Industry Association (TCIA). Today we serve our municipal, commercial, property management and homeowner association clients for all their tree care needs throughout Los Angeles and Ventura Counties and surrounding areas.

We owe our several decades in business to our dependability, integrity, skilled workmanship and strict adherence to our industry’s highest safety standards. Whether you engage our team for simple tree trimming or complex crane-assisted tree removal, our peerless attention to detail and total commitment to customer satisfaction guarantee your best solution for tree care in Southern California.

What Is a Certified Treecare Safety Professional ?

Established in 1938, the Tree Care Industry Association (TCIA) is an international trade association comprising over 2,300 tree care firms and affiliated companies. The TCIA’s Certified Treecare Safety Professional (CTSP) program is the only safety credentialing program in the arboriculture industry. A CTSP possesses significant technical field experience in tree care and applies their skills toward creating safer workplaces for their peers and landscapes for their employer’s clients.

Founded in 1924, the International Society of Arboriculture (ISA) is a non-profit organization which promotes the professional practice of cultivating trees and fosters greater worldwide awareness of trees’ benefits. An ISA Certified Arborist must have demonstrated their commitment to the ISA’s mission, worked in their field for at least three years, and earned a degree in arboriculture, horticulture, landscape architecture or forestry from a regionally accredited educational institute.

What Is an International Society of Arboriculture Certified Arborist?

Contact Newbury Park Tree Service today to schedule expert tree care services!


3595 Old Conejo Road
Newbury Park, CA


Monday - Friday
9:00 - 5:00pm

Saturday - Sunday

License No. 697817