Collis Tree Services

General information

Founded in 1997 by Daron and Yvonne Mitchell, Advanced Trees Services (ATS), operates throughout London and SE England, offering a full and comprehensive arboricultural service to the domestic market and both private and public sector bodies.

At ATS we pride ourselves on our motivated staff offering high levels of workmanship. We undertake all forms of tree management, the full range of which can be viewed under ‘Client Services’.

We appreciate that our primary service of arboriculture is not just about pruning. We also offer a comprehensive tree planting and maintenance facility for our clients and customers. Trees may range in size from transplants to semi-mature specimens and can be established with tailor made maintenance schedules.

ATS also provides emergency cover 24 hours a day, 365 days a year for all our contracts and to clients requiring unexpected arboricultural needs.

We currently recycle 100% of wood waste and through ATS’s own brand; Earthscapes, provide a variety of products for the landscape industry from arisings produced during daily operations.

Approved contractors of the Arboricultural Association, ATS are also accredited with CHAS and Constructionline. The Company are also members of the Royal Forestry Society, London Tree Officers Association and TCIA.

In addition to these affiliations, ATS holds ISO 9001, ISO 14001 and OHSAS 18001 accreditation.

ATS promotes a non-confrontational and partnering ethos with all its clients and customers.