Arboricultural Association Approved Contractor

The Arboricultural Association is a world leading authority on arboricultural best practice, delivering professional standards and guidance, ensuring the responsible management of trees.

An extract from the Arboricultural Association website:

“The Arboricultural Association’s assessment of Approved Contractors is not limited to their knowledge of trees and tree maintenance but

  • their understanding and practical application of current arboricultural practice.
  • their compliance with legislative requirements of arboricultural con-tracting.
  • their compliance with health and safety requirements of arboricultural contracting.
  • their excellence of service to clients through efficient business manage-ment.

Each Arboricultural Association Approved Contractor is required to identify a principal or manager who is responsible to the Association for the company’s standards. The standard required by the Association is very high and Approved Contractors are subject to reassessments at regular intervals to ensure that standards are maintained. The standards themselves are regu-larly reviewed to ensure that they reflect contemporary arboricultural re-search findings, legislative and health and safety requirements, business practices and customer expectations.

The Association requires that Approved Contractors within this directory must hold insurances to levels appropriate to liabilities that their work may generate, and in all cases Public Liability insurance to a minimum of £5,000,000 with a maximum excess of £250 in any one incident and Em-ployers Liability insurance to an appropriate level commensurate with the size of the business.”

CHAS is the Contractors Health and Safety Assessmsnt Scheme. CHAS performs healthaand safety pre-qualification assessments. CHAS certification shows that a company has demonstrated a commitment to the management of health and safety .


The ISA’s mission statement is to improve the understanding of trees and the practice of arbori-culture.

STS Contractors


STS Misc

STS are Arboricultural Association Approved Contractors

Based in Madeley, near Crewe, we undertake work within a hundred mile radius of our base. Operations include pruning (deadwood removal, crown reductions, crown thinning, crown raising and cleaning), felling, dismantling, site clearance and stump removal. We also install non-invasive cable brace systems to support weak or damaged trees.

We aim to meet the needs of our customers while also preserving the quality of trees for future generations. All of our work conforms to the BS3998 standard for tree work. We understand that tree work is potentially hazardous and we are committed to Health and Safety in all our activities. We carry out site specific risk assessments prior to commencement of any work.

All STS Contractors UK Ltd staff are regularly updated with training in all the latest techniques for tree work & related operations to ensure compliance with industry guidelines. We hold public liability and employers liability insurance of £5 million.

Call STS Contractors

Call STS on
01782 751369
07752 160139