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Arboricultural Services

Westminster City Council

Awarded
services

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Key details

Contracting authority
Westminster City Council
Public authority - sub-central government
Region
London
Delivery: London, United Kingdom
Contract value
£16,500,000ex VAT
Submissions closed
Not stated by buyer
Published
19 June 2026

Procurement

Contract period
1 June 2026 - 31 May 2032
6 years
Possible extension to 31 May 2035 · 8 years, 11 months in total
Procedure type
Open procedure
CPV classifications
  • 77310000 Planting and maintenance services of green areas
  • 77340000 Tree pruning and hedge trimming
  • 77300000 Horticultural services
  • 45112700 Landscaping work
  • 77211500 Tree-maintenance services

What happened

Westminster City Council awarded this contract to Gristwood and Toms Limited worth £16,500,000 on 21 May 2026. The contract runs until 31 May 2032.

Description

Arboricultural Services encompasses the management, care and maintenance of trees in public spaces. This includes a range of activities aimed at ensuring the health, safety and sustainability of the tree population. The authority is responsible for the maintenance of trees in parks, on our streets, and in other public and open spaces, which are crucial for environmental health and biodiversity. Services include but are not limited to:

  • Tree planting
  • Tree watering and establishment
  • Maintenance and pruning
  • Tree removal; and
  • Emergency 24-hour cover

Additionally, Arboricultural Services contribute significantly to Councils statutory town planning obligations and environmental policy initiatives, ensuring trees are embedded in polices and strategic initiatives that align with broader sustainability goals such as improved air quality, enhancing biodiversity and combating climate change, demonstrating our commitment to environmental goals and the wellbeing of our communities.

Statutory Framework

Local authorities have a Duty of Care to prevent or minimise the risk of injury or damage to property caused by tree failure to those reasonably likely to be affected. This duty arises from:

  • Occupiers’ Liability Act (1957 and 1984).
  • Health and Safety at Work Act (1974)
  • Highways Act (1980)
  • Common Law liability of Negligence and Nuisance

The Council’s tree management regime maintenance contract is required to minimise the risk of liability arising from our Duty of Care and other statutory and common law obligations.

Objectives

The overall objectives for the new contract will be but not limited to:

  • Ensure the Councils statutory duties in relation to Arboricultural services are delivered.
  • Provide continued support to other areas of the Council with the aim of ensuring best value for money and a continuing high level of

performance.

  • Contribute to greening, biodiversity, social value and health & wellbeing / physical activity outcomes; and
  • Continue to deliver current priorities such as the Council's Fairer Westminster priorities, #2035, environmental targets and public

realm strategies as appropriate.

  • Ensure contract management and accountability, ensuring that the new service provider delivers on KPIs related to service quality,

environmental goals, and community engagement.

  • Ensure compliance with legal, financial, and procurement regulations.
  • Introduce greater service flexibility to accommodate future changes in priorities, such as the potential to merge responsibilities and

or deliverables with Highways or Public Realm initiatives.

  • Enhanced social value contributions, increased focus on climate action, greening and biodiversity.

Contractual activities required to meet objectives will include, but are not limited to:

  • Tree surgery operations in order to maintain a healthy stock of highway trees and to minimise the risk from trees to users of the

public highway, parks and cemeteries and housing estates and properties.

  • Tree surgery operations to Council owned trees to reduce the likelihood of subsidence related damage to adjacent properties.
  • Tree removal to minimise the risks of tree failure.
  • Tree planting including site investigations, young tree watering and establishment; and
  • Providing a 24-hour emergency service to deal with urgent tree related incidents.

Awarded supplier

Supplier
Gristwood and Toms Limited
Companies House: 02665293
Award value
£16,500,000
Award date
21 May 2026

Contact

Address
64 Victoria Street, London, SW1E 6QP

Identifiers

Buyer reference
PRJ_30531 - P512 Arboricultural Services
Notice ID
057837-2026
OCID
ocds-h6vhtk-05066b

Explore related tenders

External ID: fts-ocds-h6vhtk-05066b • Added 19 June 2026