Ground based Visual Tree Assessment or Health & Safety Surveys are the starting point of all tree management. These surveys enable us to quickly assess the condition of trees on and next to a site.

This enables us to assess a trees condition and identify both current and future works to help maintain or improve the condition of trees and maintain safety.

Visual assessment of trees relies upon using Visual Tree Assessment (VTA), this is a non-invasive method of examining the health and structural condition of individual trees. The assessment provides information on the condition of the roots, trunk, main branch structure, crown, buds and leaves together providing an assessment of general tree health and vitality.

Typically, this assessment is undertaken using basic decay detection tools such as a sounding mallet and probes to determine initial safety and determine whether further investigation is required, using more detailed methods.



"Ian - thank you very much for your very good and thorough report"
Parochial church council
(We did a Health and Safety survey)


Tree Risk assessments provide initial information on the condition of trees and the risk offered by trees, based upon their condition, location, likelihood of failure and potential to impact to property and people.

Our surveyors are trained, including being qualified (ISA) and a licensee of  (QTRA) these are various Risk Assessments methods.     

            ISA Tree Risk Qualification verify here for Ian Barnes.

Typically, a ground-based assessment of trees identifies the general nature of the trees and their relationship with significant targets. This is generally informed by the trees relationship with targets. Based on this, larger trees adjacent to higher value targets are typically more closely assessed than smaller trees adjacent to a lower value targets and unless requested otherwise risk assessments are typically reassessed over a 18 monthly period.


HOMEBUYER (Mortgage and Insurance)

Occasionally during the process of buying a new property or when a property suffers damage, trees can be suspected of causing harm and an assessment of risk or damage can be required.

This requires careful assessment of the site conditions, the age and construction of the dwelling and an assessment of nearby trees and vegetation to identify the risk of harm from indirect damage (subsidence) or the potential for direct damage (movement / cracking) in lightweight structures.

We have specialist training in this area, (not all surveyors have), refer to the resources page for more details.                                                                                    We are listed on


Often the most noticeable trees in the landscape, are the large growing or older trees that provide both a strong visual feature in the landscape or provide a valuable connection to previous landscapes and in so doing often provide valuable habitats for a wide range of plants and animals.

These often-geriatric trees are often found with a range of specific issues that will require a range of specific management requirements to help maintain their current form and value to a site, whilst trying to improve their growing conditions and form to help extend their lives for generations to come.

We have a wide range of experience of dealing with trees that are predispose to or have suffered partial failures or helping to improve declining trees. Trees have an ability to renew and redevelop and with careful management this can be encouraged to help trees continue to offer their many benefits.

LEGAL & LAW (TPO & Valuations)

We are here to help with your tree related problems. You may have concerns over a planning application nearby to your tree or may have received a TPO (Tree preservation Order) or your trees happen to be located within a Conservation Area.

Alternatively, you may have questions regarding trees located close to boundaries or have a tree suspected of causing damage. We can help and advice on the most suitable route.

There are extensive laws which control the status and protection of trees and woodlands to ensure their longevity and care. Most of these are statutory and dealt with by your Local Authority or the Forestry Commission.

Barnes  Associates Ltd are well informed with all regulations relating to the protection of trees and we are here to help inform and guide all our clients upon the most appropriate course of action.