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 are proud to have three generations of the Ambler & Lewis family involved in driving the company forward.

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.

Arboricultural Contracting 4

  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 20200909_083051

Steve Ambler

Practice Manager & Principal Arboricultural Consultant (Managing Director)

Steve is a highly qualified arboriculturalist with 40+ 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 20200904_152323

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.

g)  Professional Member of the Arboricultural Association
  07961 322908

Scott Ambler

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);  Level 2 Diploma in Arboriculture and is presently working towards Level 4 – Diploma 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. NPTC City & Guilds Level 3 assessor in ground based chainsaw operations. 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


Alison Edwards – Support and Development Manager BA Hons Wales., PGCE.,Dipl Management.,MEd Leadership and
Management., NPQH., Dip Financial Planning.

Bringing a wealth of experience from Leadership in education, Alison joined the company in 2020 and manages the daily
organisation and smooth running of our office and leads on the company’s development planning and financial tracking, fleet
management and human resources. Alison has upgraded the company’s existing invoice procedures and works’ tracker
systems and manages our policy development and accreditations along the attainment of our Health and Safety certification.
Having led on a wide range of strategic plans within education, she manages and monitors all our systems ensuring
sustainability and focus, moving us forward on our development action plans. Alison also manages our in-house CPD
programme and is currently developing our new skills’ training centre. She has recently gained her Diploma in Financial


Lee 20200904_152237

Lee Pinney – CAD and GIS Specialist. PGCert.

Lee brings a technical skill and innovation to the company with over 25 years’ experience in this field. He holds level 4, 5 & 6
qualifications in Land Administration Planning, Computing and in Geographic Information Systems (GIS). Lee has designed
and continually develops the companies digital surveying programmes, ensuring we meet and exceed our client’s bespoke
requirements. He manages our mapping needs and produces all digital plans to support the consultancy role, ensuring a high
level of accuracy and detail with his personnel attention.

Some of the Consultancy Team with the Tree Teams, at the Yard

Mitchell Lewis & Callum Evans – Tree Team Leaders

Continuing the family theme, Mitchell Lewis has joined the business, and through his training programme and dedication has become a Team Leader and climber along with Callum Evans. Both team leaders are developing their professional arboricultural knowledge through mentoring & training as provided by our Arboricultural Consultants, including the use of Decay Detection Equipment and survey work.

Currently they hold the following competence certificates and are working towards many others – First aid; Basic chainsaw; Medium diameter tree felling; Tree climbing & rescue; Use of chainsaw in a tree; Safe use of Woodchipper.

Client Base

Aneurin Bevan Health Trust
Asbri Planning
Barking Lion Productions Ltd
Barratt Homes
Blaenau Gwent County Borough Council
Bridgend County Borough Council
Caerphilly County Borough Council
Charter Housing
Cynon Taff Housing
David Wilson Homes
Disney Production

Newport City Council
Natural Resource Wales
Groundwork Trusts
Gerald Davies Limited
Gwent Health Trust
Havoc Films Ltd
Llanmoor Homes
Leonard Cheshire Disability
Merthyr Tydfil County Council
Monmouthshire County Council
National Trust
Powys County Borough Council

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)