Tree Risk Assessment

A risk assessment is an essential part of any Health & Safety policy and is instrumental in fulfilling legal 'Duty of Care' obligations...

t: 01604 581044 e: info@rgs-treeservices.co.uk

Arbiculture and
Horticulture Consultants

RGS Services

tree services since 1986
tree hazard services since 1986 Catastrophic stem failure of Poplar

tree decay detection Tree stump with internal decay visible

tree risk detection Root plate movement

...under The Occupiers Liability Acts.


A valuable guidance document was published for the first time at the end of 2011 - 'Common sense risk management of trees' from the National Tree Safety Group is now considered the definitive guidance for landowners, managers and advisors. It identifies that the risk of harm to persons or property resulting from tree failure is very low indeed, although when a tree does cause death or serious injury it will usually have a high public profile and will invariably result in legal action.


Our aim is to take a reasonable and considered approach to the risks that trees pose, and to take due account of the 'target' - in this regard we advise our clients to carry out a zoning exercise, which apportions every part of the site to one of three Risk Zones (High, Medium, Low) depending on the volume of pedestrian or vehicular traffic. This approach can equally be applied to large or small sites.


Our methodology for Tree Risk Assessment starts with Visual Tree Assessment or VTA (a recognised industry standard method) to identify any structural defects. We will then use a quantified method to assess the actual risk posed by a defective tree, and recommend appropriate works to mitigate the risk.


Our clients for Tree Risk Assessment include: Schools & Colleges, Hospitals, Private Estates and Landscape Gardens, Local Authorities, Golf Courses, Hotels and Corporate Event Providers.


As a result of a Tree Risk Assessment we may find that further more detailed inspection of certain trees is required in order to reach a conclusion. To this end we might recommend an aerial inspection, root investigation or a decay detection survey - for further information on these services see our sections on Tree Inspection & Decay Detection.


The NTSG document "Tree risk management for landowners" is available to freely download here .

Arborist Tree Inspection Accredited