Scott Ambler – Operations Manager. Tel: 07772 998 734. Email:
Vaughan Lewis – Head of Consultancy. Tel: 07961322908 Email:

About Steve Ambler & Sons Tree Specialists Ltd

Established in 1999, Steve Ambler & Sons Tree Specialists Ltd are a family company striving to improve arboricultural standards in all aspects of our business and within the sector, through our arboricultural consultancy and tree surgery operations.

We offer both a consultancy and tree work contracting service within the same business, thereby meeting all your tree related needs in one place.

We support and encourage a personal professional development programme as policy both for our consultants and skilled tree surgery operatives. We are based in Brynmawr & Blackwood (South Wales) & provide skilled work opportunities for local people of all ages.

Health and Safety is paramount, and the company received its Work Safe Certificate awards for both tree surgery and consultancy through the SMAS and SSIP scheme for the fourth consecutive year. We are also listed on Constructionline.

We look forward to hearing from you and our highly qualified and experienced team are more than happy to discuss any tree related matters.


  Steve has responded to the numerous queries and works required for this (Wenvoe) site in an efficient manner. Works range from pre-planning advice on managing and retaining trees on site, to securing permissions necessary for the works and then undertaking the tree works in a safe manner  
Redrow Homes. Jane Carpenter – Director of Planning


Years Experience


Successful Projects


Team Members


5* Reviews

Meet Our Team


Steve Ambler

Practice Manager & Principal Arboricultural Consultant (Managing Director)

Steve is a highly qualified arboriculturalist with 38 years’ experience in the industry, 19 years of which were spent in Local Government as a Principal Arboricultural and Woodlands Officer. Steve holds the following relevant qualifications:
a) Certificate in Arboriculture (Royal Forestry Society)
b) Professional Technician in Arboriculture (Arboricultural Association) – Level 4
c) Professional Diploma in Arboriculture (Royal Forestry Society) – Level 6
d) Fellow Member of the Arboricultural Association.
  07813 310826


Vaughan Lewis

Head of Arboricultural & Woodland Consultancy (Director)

Vaughan has worked within the arboricultural and forestry sectors for 25 years, most recently as the Ancient Woodland Restoration Officer for the Woodland Trust and prior to that, as the Principal Arboricultural and Woodlands Officer for a local authority. Vaughan holds the following qualifications: –
a) Professional Technician in Arboriculture – (Arboricultural Association) – Level 4
b) Professional Tree Inspector Certificate (Lantra Awards)
c) Landscape Science, Higher National Diploma -Distinction. (Pencoed College &
University of Glamorgan)
d) Woodland Management, National Diploma – Distinction (Hereford College of Agriculture)
e) Rural Studies, Btec First Diploma – Distinction (Pencoed College)
f) Lantra Award, “Bats and Arboriculture – A Guide for Practitioners” developed by The Bat Conservation Trust.
  07961 322908


Scott Ambler

Work Operations Manager (Director)

With 11 years’ experience, Scott’s responsibilities include the day to day running and work programming for all the arboricultural contracting teams. He undertakes all pricing responsibilities for arboricultural related contracting.

He is currently a Level 1 Tree Inspector (LANTRA) and is presently working towards Level 4 – Technician’s Certificate in Arboriculture through a structured learning programme.
  07772 998734


Leigh Ambler

Technical Manager (Director)

With 11 years’ experience, a fully qualified climber and Level 1 Tree Inspector (LANTRA) and is presently working towards Level 4 – Technician’s Certificate in Arboriculture. Leigh has the task of providing all in-house/external training for staff.
He is fully qualified in all aspects of tree surgery operations including rigging. Responsible, for all LOLER equipment testing and recording to comply with the Health and Safety Regulations, in respect of Working at Height Regulations. He plans and supervises all working at height operations and monitors progress, safety and training needs. Leigh is also responsible for Japanese knotweed treatment, chemical spraying and the maintenance and storage of pesticides under COSHH.
  07961 322908

Professional Indemnity = £500 thousand

Public Liability = £5 million

Employer’s Liability Insurance = £10 million

Client Base

Aneurin Bevan Health Trust
Asbri Planning
Barratt Homes
Blaenau Gwent County Borough Council
Bridgend County Borough Council
Caerphilly County Borough Council
Cardiff University
Charter Housing
Cynon Taff Housing
David Wilson Homes

Newport City Council
Natural Resource Wales
Groundwork Trusts
Gerald Davies Limited
Gwent Health Trust
Kingfisher Homes
Llanmoor Homes
Leonard Cheshire Disability
Merthyr Tydfil County Council
Monmouthshire County Council
Morganstone Homes

Persimmon Homes
Pobl Group
Redrow Homes
Rhondda Cynon Taff County
Borough Council
Soltys Brewster Consulting
Swansea University
The Church in Wales
Taylor Wimpey Homes
Valley 2 Coast Housing
Woodland Trust (Coed Cadw)