---
title: "Boston Barrier Operation & Maintenance"
ocid: "ocds-h6vhtk-06ae16"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06ae16"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06ae16.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06ae16.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "ENVIRONMENT AGENCY"
published: "2026-06-04"
---

# Boston Barrier Operation & Maintenance

Buyer: ENVIRONMENT AGENCY  
Current stage: Planning  
OCID: ocds-h6vhtk-06ae16

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06ae16)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-06ae16.json)

## Summary

The ENVIRONMENT AGENCY, operating as a sub-central government public authority, is in the planning stage of a procurement process titled "Boston Barrier Operation & Maintenance." This procurement aims to ensure the long-term operation and maintenance of the Boston Barrier, a critical flood defence comprising over 100 individual assets, located in London, United Kingdom. The procurement is organised through a Competitive Flexible Procedure in accordance with the Procurement Act 2023. Interested parties should note that this process has been updated from a prior notice and is planned to start service on 4th January 2027, with an expected contract period running until 30th June 2032. Additional information and potential updates will be communicated electronically, with a future notice expected by 27th July 2026.

This tender provides substantial opportunities for growth within the flood-defence maintenance and engineering services sector. It is particularly suited to businesses experienced in construction consultancy services, engineering services, and repair and maintenance of electrical and mechanical installations. Additionally, enterprises providing construction management and consultative engineering are well-positioned to benefit. The process is designed to be inclusive of SMEs, promoting wider participation. The anticipated value of this procurement, set at £3.6 million gross, represents a significant business opportunity for those capable of meeting the technical and commercial requirements outlined in the procurement stages.

## Notice

This notice replaces prior notice 2025/S 000-024077 issued on 21/05/2025. The procurement is now being conducted as a Competitive Flexible Procedure in accordance with the Procurement Act 2023. The Boston Barrier comprises a group of over 100 individual assets including a radial gate flood barrier, which between them protect more than 14,000 residential properties and 800 commercial and community buildings. Since being active the barrier and associated assets have been operated and maintained under an NEC Term Service Contract. The current contract is expected to end in June 2027 and to ensure the continuing readiness of the gate and associated assets a new service contract for their long-term operation and maintenance is required. The Tender will be split into the following high-level stages: Stage One - Pre-Selection Stage. This will consist of the following requirements: * 1A: Procurement Specific Questionnaire (PSQ), including Conditions of Participation (CoP). * 1B: A Mini-Technical Envelope (Scored), which will be used to down-select suppliers. Stage Two - Invitation to Tender (ITT) Stage. This will likely include a site visit and will consist of the following requirements: * 2A: Quality Envelope (including Social Value) * 2B: Price (Commercial Envelope) (OPTIONAL) Stage Three - Final Clarification and Negotiation interviews and/or presentations. Full details of the Procurement Process and instructions will be detailed in the tender notice at the point of issue. Please note: The Authority may update or amend this Notice including dates which are subject to change. Additional information can be obtained from the above-mentioned address. Tenders or requests to participate will need to be submitted electronically, this electronic communication requires the use of tools and devices that are not generally available. Unrestricted and full direct access to these tools and devices is possible, free of charge, at https://defra-family.force.com/s/Welcome.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/053054-2026 |
| Notice type | UK1 - Pipeline Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Not Specified |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 4 Jun 2026 |
| Submission deadline | Not specified |
| Future notice date | 27 Jul 2026 |
| Award date | Not specified |
| Contract period | 4 Jan 2027 - 30 Jun 2032 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £3,000,000 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planned |
| Lots status | Planned |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | ENVIRONMENT AGENCY |
| Additional buyers | DEPARTMENT FOR ENVIRONMENT, FOOD AND RURAL AFFAIRS |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1P 4DF |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 45 - Construction work
- 50 - Repair and maintenance services
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 45246410 - Flood-defences maintenance works
- 50710000 - Repair and maintenance services of electrical and mechanical building installations
- 71300000 - Engineering services
- 71310000 - Consultative engineering and construction services
- 71530000 - Construction consultancy services
- 71540000 - Construction management services

## Release History

- 4 Jun 2026 at 16:06 - Planning - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/053054-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/053054-2026
  4th June 2026 - Pipeline notice on Find a Tender

## Notice URLs

- https://defra-family.force.com/s/Welcome
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06ae16. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06ae16.json.