---
title: "Contract Award Notice - Black Sluice Gearbox Replacement Construction"
ocid: "ocds-b5fd17-caf3012d-441d-454d-970a-27522aa9c8e8"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-caf3012d-441d-454d-970a-27522aa9c8e8"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-caf3012d-441d-454d-970a-27522aa9c8e8.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-caf3012d-441d-454d-970a-27522aa9c8e8.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "DEPARTMENT FOR ENVIRONMENT, FOOD & RURAL AFFAIRS"
published: "2026-10-26"
---

# Contract Award Notice - Black Sluice Gearbox Replacement Construction

Buyer: DEPARTMENT FOR ENVIRONMENT, FOOD & RURAL AFFAIRS  
Current stage: Award  
OCID: ocds-b5fd17-caf3012d-441d-454d-970a-27522aa9c8e8

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## Summary

The Department for Environment, Food & Rural Affairs procured construction work to refurbish the gearboxes at Black Sluice. The requirement is mechanical equipment refurbishment and associated construction activity, rather than a general engineering or maintenance contract. Delivery is at Black Sluice, in the South East of England. The work concerns the site’s existing gearbox equipment; the procurement description does not detail a wider programme of works. The requirement was classified as works, with mechanical equipment installation as its procurement classification. This is a site-specific requirement from Defra, relevant to contractors with experience delivering construction and mechanical refurbishment work on operational infrastructure.

The procurement is complete and has been awarded to JT Mackley & Co. Ltd. Defra used a selective call-off from a framework agreement. The tender submission deadline was 6 August 2026, and the award was made on 22 October 2026. The awarded contract value is £69,908.51. The contract period runs from 5 October 2026 to 28 February 2027. The opportunity was identified as suitable for small and medium-sized enterprises. The published procurement information does not set out separate lots or an evaluation breakdown, so the award basis beyond the framework call-off route is not described here.

For firms that did not win, this award demonstrates Defra’s demand for specialist, site-based gearbox refurbishment and related construction at Black Sluice. Suppliers best placed to compete when this particular requirement returns will be able to combine mechanical equipment expertise with construction delivery, and to plan and execute refurbishment work safely and reliably at an infrastructure site. The call-off route also makes experience working within framework arrangements commercially relevant. The stated SME suitability indicates that businesses need not be large to be credible, provided they can deliver the required specialist work and meet the framework’s conditions. Contractors focused only on general building work, without relevant gearbox refurbishment capability, are less closely aligned with this requirement.

## Notice

Construction activities relating to the refurbishment of the gearboxes in Black Sluice.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/13d0121c-2a9d-4c1a-8d2f-86e413ffca53 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Works |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 26 Oct 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 22 Oct 2026 |
| Contract period | 5 Oct 2026 - 28 Feb 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £69,908 |
| Lots value | Not specified |
| Awards value | £69,908 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DEPARTMENT FOR ENVIRONMENT, FOOD & RURAL AFFAIRS |
| Locality | BRISTOL |
| Postcode area | Bristol |
| Postcode | BS1 5AH |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK5 West of England |
| ITL 3 | TLK51 Bristol, City of |
| Local authority | Bristol, City of |
| Electoral ward | Hotwells and Harbourside |
| Westminster constituency | Bristol Central |
| Delivery location | TLJ South East (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | JT Mackley & Co. Ltd |

## CPV Codes

### Divisions

- 51 - Installation services (except software)

### Codes

- 51120000 - Installation services of mechanical equipment

## Release History

- 26 Oct 2026 at 07:44 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/13d0121c-2a9d-4c1a-8d2f-86e413ffca53

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/13d0121c-2a9d-4c1a-8d2f-86e413ffca53
  26th October 2026 - Awarded contract notice on Contracts Finder

## 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-b5fd17-caf3012d-441d-454d-970a-27522aa9c8e8. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-caf3012d-441d-454d-970a-27522aa9c8e8.json.