About Us

Director – William Jones

William has lived and worked with trees his whole life. His passion for climbing trees was born from early experiences in outdoor pursuits, climbing on rock, snow and ice.

William is the most qualified arborist on the Central Coast, which means he can give you the best advice. He has a background in Environmental Science (currently studying Bachelor of Environmental Science) and holds a Diploma in Horticulture (Arboriculture) and a Certificate IV in Workplace Training and Assessment. He has worked as an Industry Trainer for Sydney’s leading Height Safety Company, Total Height Safety. He also teaches part-time at Hunter Institute of TAFE, training future arborists.

William has been working with T&G Tree Service on the Central Coast since 2009. Other relevant qualifications include: Advanced Rigging, Dogman, Industrial Rope Access L2, L3 Advanced Tree Felling, Height Safety and Vertical Rope Rescue Training.



Operations Manager – Karl O’Callaghan

Karl has been in the tree industry for over 20 years and is a Level 3 Qualified Arborist, Advanced Rigger and Crane Operator. Originally from New Zealand, his can do attitude translates into getting even the biggest jobs done safely and on time for our customers.


Consulting Arborist – Lee Greenhalgh

Lee has a passion for trees and the environment and has been working in the horticulture industry since 1995. Lee holds a Certificate III in Conservation and Land Management, a Certificate IV in Arboriculture (Horticulture) as well as qualifications in Project Management.


T&G Tree Service – Our Company

At T&G Tree Service our purpose is to create environments that are both safe and beautiful in which to live. We are a professional tree service company and are proud members of the national association of arborists, Arboriculture Australia and are approved service providers for Central Coast Council.

We have a large crew of well-trained staff that work extremely well together as a team. Unlike many other Central Coast tree loppers, we do not use sub-contractors. As a result, we are able to provide our customers with the most consistently safe, reliable and efficient tree service on the Coast. All machinery, climbing and rigging equipment is maintained and inspected daily and we have $20 million public liability insurance for your additional peace of mind.

Contact T&G Tree Service now on (02) 4384 6486 or 0402 418 017 to arrange an arborist consultation.