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Low Level Waste (LLW) Vault External Backfill - Stage 3a

Nuclear Restoration Services Limited

This public procurement record has 1 release in its history.

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21 Jul 2026 at 14:07

UK7 - Contract Details Notice
Summary of the contracting process

Nuclear Restoration Services Limited (NRS), through its Dounreay operation, procured works for the external backfill of a Low Level Waste (LLW) vault, Stage 3a. The requirement concerns grouting work associated with the vault backfill. Delivery is at the Dounreay site, which NRS manages in the Caithness area of Scotland. This is a specialist construction and waste-infrastructure requirement rather than a general building, maintenance or consultancy service. Businesses relevant to this procurement are contractors able to carry out grouting and related civil engineering works in a controlled nuclear-site environment, with the operational discipline needed to work around low-level radioactive waste facilities and vault infrastructure.

The procurement is complete and was awarded through a direct award below the applicable threshold, without competition. The award was made to John Gunn & Sons Ltd on 15 July 2026. NRS signed an active contract with the supplier for £28,182.50 excluding VAT, or £33,819 gross. The contract runs from 20 July 2026 to 30 September 2026. The requirement was presented as a single completed lot, covering the Stage 3a LLW vault external backfill works. The award relates to grouting work and the contract is below threshold. This outcome shows that NRS used a non-competitive route for this specific, defined package rather than inviting competing tenders.

For a supplier that did not secure this award, the procurement demonstrates a defined demand from NRS for specialist grouting and external backfill at the Dounreay nuclear site. A credible future competitor would need practical capability in grouting and civil engineering, together with the capacity to deliver a discrete works package within a tightly controlled operational setting. Relevant experience of nuclear, radioactive-waste, industrial or similarly regulated infrastructure would help demonstrate an understanding of site controls, quality assurance, safe working and coordination with the asset owner. The awarded supplier was a large business, indicating that scale and established delivery resources may be advantageous, while the modest package size could suit a specialist contractor with the necessary site capability.

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Notice Information

Notice Title

Low Level Waste (LLW) Vault External Backfill - Stage 3a

Notice Description

A direct award contract has been awarded by Nuclear Restoration Services (NRS) Limited (Dounreay) for the provision of Low Level Waste (LLW) Vault External Backfill - Stage 3a

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06cfec
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/068730-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
UK7 - Contract Details Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Direct
Procurement Method Details
Below threshold - without competition
Tender Suitability
Not specified
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45262340 - Grouting work

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
£28,182 Under £100K

Notice Dates

Publication Date
21 Jul 20262 months ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
20 Jul 2026 - 30 Sep 2026 1-6 months
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Active
Contracts Status
Active

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Nuclear Restoration Services Limited
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
WARRINGTON
Postcode
WA3 6GR
Postcode Area
Warrington
Country
England
Major Region (ITL 1)
TLD North West (England)
Basic Region (ITL 2)
TLD6 Cheshire
Small Region (ITL 3)
TLD61 Warrington
Delivery Location
Not specified
Local Authority
Warrington
Electoral Ward
Birchwood
Westminster Constituency
Warrington North

Supplier Information

Number of Suppliers
1
Supplier Name

John Gunn & Sons Ltd

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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