---
title: "Dounreay Fast Reactor Heating Upgrade Design"
ocid: "ocds-h6vhtk-064a43"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-064a43"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-064a43.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-064a43.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NUCLEAR RESTORATION SERVICES LIMITED"
published: "2026-02-06"
---

# Dounreay Fast Reactor Heating Upgrade Design

Buyer: NUCLEAR RESTORATION SERVICES LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-064a43

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## Summary

The procurement process for the "Dounreay Fast Reactor Heating Upgrade Design" was managed by Nuclear Restoration Services Limited, a sub-central government public authority based in Warrington, UK. The awarded contract involves upgrading the heating system design for the Dounreay Fast Reactor Administration Building, classified under heating-system design services. The procurement was conducted through a limited competition method, suitable for projects below the threshold. The contract is at the award stage, having been signed on 16th January 2026, and is expected to be active until 5th June 2026. This project, situated in the United Kingdom, falls under the services industry category.

This tender presents substantial business growth opportunities, specifically for firms experienced in heating-system design services. It is particularly advantageous for small to medium-sized enterprises (SMEs) with expertise in designing and implementing advanced heating systems in high-profile or complex environments. RDI Renewables Limited, a company located in Thurso, UK, was successfully awarded the contract. Businesses specialising in innovative engineering solutions and efficient energy upgrades will find this tender particularly aligned with their growth strategies. The focus on upgrading a significant facility like the Dounreay Fast Reactor hints at further opportunities in related projects as the energy sector evolves.

## Notice

Dounreay Fast Reactor Administration Building Heating Upgrade Design

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/011021-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| 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 | 6 Feb 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 16 Jan 2026 |
| Contract period | 19 Jan 2026 - 5 Jun 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £36,000 |

## 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 | RDI RENEWABLES |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71321200 - Heating-system design services

## Release History

- 6 Feb 2026 at 14:43 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/011021-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/011021-2026
  6th February 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-064a43. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-064a43.json.