Consultancy Service



  • VTA Safety Audits

  • BS5837 (2012) Surveys

  • Method Statements

  • Tree Impact Assessment

  • Tree Disease Diagnosis

  • Resistograph Analysis

  • Tomographic Internal Decay Detection

Late-mature tree undergoing Picus Sonic Tomograph testing

Late-mature tree undergoing Picus Sonic Tomograph testing

Here at Heritage Tree Services, we provide many different consultancy services, including (but not limited to):

  • Assessing trees for physiological and structural condition and specify remedial works if necessary

  • Specification of short and long term prudent maintenance programs

  • Health & Safety Duty of Care Reports

  • Assessing plant ecology and providing environmental impact reports

  • Investigating accidents caused by tree failure

  • Formulating Tree and Woodland Management Plans

  • Applications to Local Authority for tree management to work in conservation areas or on trees protected by a Tree Preservation Order

  • Assess and formulate plans for holistic tree health and root invigoration

  • Compilation of Arboricultural Method Statements and liaise with local authorities in regard to BS5837 (British Standard) (2012) 'Trees in Relation to Design, Demolition & Construction'.

Method Statements

The Arboricultural Method Statement is required to provide methodology for tree protection during any developmental projects. The Arborist provides advice and compliance guidelines for development proposals from inception to completion during the following stages:

  • Tree Survey - detailed report and preliminary constraints advice

  • Design Assessment - feedback regarding proposals

  • Tree Protection Implementation - methodology complying to BS5837 (2012)

  • Project Monitoring - visits during construction ensuring adherence to protection measures

  • Discharge of relevant Planning Conditions for Local Authorities

Tree Health

To fulfill tree owner's responsibilities, Arboricultural surveys assess structural integrity, root health, disorders and disease, physiological conditions and provide a detailed report on health and safety. The majority of the surveys are visual tree assessments (VTA) and if necessary, more detailed internal investigations can be carried out by Resistograph, Picus and Air Spade. Aerial inspections are also used for the collation of detailed information.

Resistograph Test

The Resistograph uses a 19" long drill, which is inserted on various points around the stem and major buttress flares. This indicates resistance through the cambium, trunk and even the roots. The measurement is recorded via a needle onto a paper readout and will clearly diagnose solid, healthy wood versus hollow and decayed wood, confirming safety or instability.

Picus Test

The Picus Sonic Tomograph measures the speed that sound waves travel from one point to another through a tree trunk. Sound waves are constant in solid wood yet give a much slower reading through decaying wood. Computer images provide the Arborist with confirmation of health and stability of the tree.

Air Spade

The use of compressed air, via an airgun, removes soil without damage to tree roots, allowing examination of underground anatomy and the identification of disorders, decay or root structural compromise. We also carry out decompaction works and verti-mulching to assist aeration and general efficient exchange of gases and moisture in the soil.

Tree Diseases

Heritage Tree Services provides identification of tree disorders such as fungal infection that may cause trees to fail in adverse weather. Trees will often adapt and live with fungal intervention which will steer towards desirable retention. 'Fungi/fruiting bodies' refer to any spore bearing structure on a stalk (like a toadstool) or attached directly to the tree (a 'bracket' fungus). These can be harmful (cause disease - pathogenic), harmless (living on material already dead - saprophytic) or beneficial (symbiotic) to the tree.