Old Growth Arboriculture provides personalised arborist services across Adelaide and South Australia, including tree assessment, tree-sensitive maintenance, and reporting.

Dr Gregory Guerin is a highly qualified consulting arborist and forester with 25 years botanical experience who can provide advice and assessments with a high level of technical understanding of tree growth and function, including advanced risk assessment. 

The major cost in the life of a tree is incurred when there is a failure or the tree needs to be removed. Old Growth’s purpose is to provide cost-effective tree management by avoiding unnecessary and damaging works (i.e., through pruning specifications), promoting longevity, appropriate species selection, reducing likelihood of failure (i.e., through formative pruning), and providing low-impact maintenance options that don’t need large trucks, chippers and chainsaws.

Land managers have a requirement to manage tree risks, including failure risks posed by trees and the risk of damaging protected trees. Regulatory, industry practice, and legal triggers include retention or removal of trees on development sites, protections of significant trees and native vegetation, and neighbour issues.

Old Growth Arboriculture provides assessment of tree risks and benefits, retention value, arborist reports, and arboricultural impact assessments to give you the professional advice and documentation you need for your project.

Old Growth Arboriculture services all areas of the greater Adelaide region and into country South Australia for significant projects. Core areas include north-eastern Adelaide and peri-urban Mount Lofty Ranges.

Overview of services

Old Growth’s services include tree risk inspections and assessments, tree audits, arborist reports. pest and disease management, development site tree management (AS4970-2009), formative and corrective pruning (AS 4373-2007), residential tree assessment and maintenance, tree selection and establishment.

Qualifications and certifications

• Insurance: Public Liability ($20M), Professional Indemnity ($1M)

• Fully qualified Level 8 Arborist

• PhD in Botany with 25 years related experience

• White card

• Member of Arboriculture Australia

• National Police Check

• Working With Children Check

Contact us to discuss your tree needs or get a free quote.