Accreditations

Our accreditations reflect the confidence that major clients and infrastructure providers place in our team.

Tree Cutting & Arb Accreditations

What we hold and what it verifies

Every accreditation below is independently assessed and current. Certificates are available on request, and the full evidence set is compiled in our Capability Pack, generated fresh from our compliance system when you ask for it.

ARB Approved Contractor: independent assessment by the Arboricultural Association covering work quality, safety management, insurance and office systems, with reassessment on a rolling cycle. It is the benchmark standard for professional tree surgery in the UK. Certificate AC2637, valid to 6 July 2027.

Constructionline Gold: enhanced pre-qualification covering governance, financial standing, health and safety, environmental management and quality management, so buyers can appoint us without repeating PQQ checks. Registration 00419706, verified 1 July 2026.

Fusion21 Grounds Maintenance Framework: appointed supplier, giving eligible public sector members a compliant route to appoint us. Full details in the section below.

City & Guilds approved assessment centre: we train and assess chainsaw and arboriculture qualifications at our own centre, and our own teams are trained and assessed to the same standard.

SSIP accreditation (Once For All Health and Safety): our health and safety management is verified under the Safety Schemes in Procurement scheme, accepted by public and private sector buyers in place of separate health and safety questionnaires. Registration 00419706, valid to 28 May 2027.

RoSPA membership: membership of the Royal Society for the Prevention of Accidents, supporting the safety culture our teams work to on site and in the training centre. Membership AFF-00043, valid to 30 April 2027.

Environment Agency waste carrier registered carrier, broker and dealer under the Waste (England and Wales) Regulations 2011, registration CBDL243147, held since 2018. These accreditations cover the full range of what we deliver, from utility vegetation management and commercial site clearance to certified chainsaw training and NPTC assessment.

How to appoint us

Appointed to the Fusion21 Grounds Maintenance Framework

Great Oaks Tree Services Ltd is one of 22 suppliers appointed to the Fusion21 Grounds Maintenance Framework, worth up to £85 million and running to June 2030.

Fusion21 members can appoint us through the framework by direct award, without running a new tender, or through a further competition. Members include housing providers, councils, education, the NHS and blue light services.

Insurance held: £5 million public and products liability, £10 million employers’ liability and £1 million professional indemnity.

£5m public liability £10m employers’ liability £1m professional indemnity Fusion21 Approved Supplier Constructionline Gold ARB Approved Contractor RoSPA member City & Guilds approved assessment centre

Get in touch

Certificates, insurance documents and references are available on request. The quickest route for procurement teams is the Capability Pack, generated fresh the day you request it.

Tree work and grounds maintenance: 07884 274693 or office@greatoakstreeservices.co.uk

Training and assessment: 01772 369694 or training@greatoakstreeservices.co.uk