---
title: "Supply of Borehole Headworks"
ocid: "ocds-h6vhtk-0698b0"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0698b0"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-0698b0.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-0698b0.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NUCLEAR RESTORATION SERVICES LIMITED"
published: "2026-05-14"
---

# Supply of Borehole Headworks

Buyer: NUCLEAR RESTORATION SERVICES LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-0698b0

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0698b0)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-0698b0.json)

## Summary

Nuclear Restoration Services Limited, a public authority entity located in Risley, UK, has completed a procurement process for the supply of borehole headworks. This contract, titled "Supply of Borehole Headworks Assemblies", falls under the goods category with specific emphasis on drain accessories, as classified by CPV code 33141642. The tender was conducted using a limited procurement method due to it being below the threshold for broader competition. The procurement process reached the award stage, with the contract signed on 12th May 2026 and the contract commencing on 13th May 2026, concluding on 11th August 2026. The successful supplier, Calder Engineering Ltd, is based in Thurso, UK.

This contract presents opportunities for small and medium enterprises, particularly those in the manufacturing and engineering sectors, to engage in specialised goods provision such as borehole equipment and accessories. Companies experienced in supplying components related to nuclear restoration and infrastructure are well-suited to leverage such opportunities for business expansion. Given the focus and scale, SMEs could enhance their market presence in public sector contracts by demonstrating competence in delivering bespoke engineering solutions within required specifications and deadlines.

## Notice

Nuclear Restoration Services Limited (Dounreay) has awarded a competitive contract for the supply of 10 x borehole headworks assemblies.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/044347-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Limited |
| Procurement method details | Below threshold - limited competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 14 May 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 11 May 2026 |
| Contract period | 12 May 2026 - 11 Aug 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £29,960 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NUCLEAR RESTORATION SERVICES LIMITED |
| Locality | WARRINGTON |
| Post town | Warrington |
| Postcode | WA3 6GR |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Birchwood |
| Westminster constituency | Warrington North |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | CALDER ENGINEERING |

## CPV Codes

### Divisions

- 33 - Medical equipments, pharmaceuticals and personal care products

### Codes

- 33141642 - Drain accessories

## Release History

- 14 May 2026 at 12:11 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/044347-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/044347-2026
  14th May 2026 - Contract details notice on Find a Tender

## Notice URLs

- https://www.gov.uk/government/organisations/nuclear-restoration-services
- 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-0698b0. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-0698b0.json.