Find a TenderClosedTender notice
Published 18 May 2026, 14:10 BST

Official UK procurement notice

Stack Characterisation & Evaluation & DOP Filter Testing Lots 1 & 2 2027 onwards

Official notice

Authority: Nuclear Restoration Services Limited (Public body)·Consortium: 2 public authorities

2 lotsServicesOpen procedureAbove thresholdSME suitable
Sectors: Architecture & Engineering (71) Delivery: UK
Published estimate£2,752,000total for 2 lots · £3,302,400 inc. VAT · 1 value update
Submissions closed 18 Sept 2026
Lots 2see the lot list below
Contract term 5 yrsends 31 Mar 2032 · up to 31 Mar 2035 with extensions · starts 1 Apr 2027

What is being bought2 lots · detail below

Published requirement description

Stack Characterisation & Evaluation & DOP Filter Testing Lots 1 & 2 2027 onwards - covers NRS Sites, NRS Dounreay and AGRs transferring to NRS.

  • The authority expects to re-tender this requirement around 1 Apr 2033, 23:59 BST.

CPV: Engineering services

Lots and requirements (2)Procurement structure

2 lots · all with a published value (£2,752,000 together) · same evaluation weights on every lot
Lot #1Harwell/WinfrithRenewal 5 yrsSMEPublished value£495,000

Lot 1 is to be performed at Harwell/Winfrith

Contract period: 1 Apr 2027 – 31 Mar 2032 (5 yrs) · up to 31 Mar 2035 with extensionsValue: £495,000 exc. VAT · £594,000 inc. VAT
Delivery: UKEligibility: SME eligible
Extensions: Lot 1 - Harwell/Winfrith Lot 2 - All other NRS sites including AGRs · An optional 3 year extension is allowed for within the contract
Lot #2All other NRS Sites including AGRsRenewal 5 yrsSMEPublished value£2,257,000

Lot 2 is to be performed at all other NRS sites including AGRs

Contract period: 1 Apr 2027 – 31 Mar 2032 (5 yrs) · up to 31 Mar 2035 with extensionsValue: £2,257,000 exc. VAT · £2,708,400 inc. VAT
Eligibility: SME eligible
Extensions: Lot 1 - Harwell/Winfrith Lot 2 - All other NRS sites including AGRs · An optional 3 year extension is allowed for within the contract

What it takes to win
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How this buyer will score bids.

The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).

Evaluation split and conditions of participation as published; the tender pack may add more
How bids were scored · same split on all 2 lots
Quality: 55%Price: 35%Social value: 10%
Published sub-criteria (4)
  • Technical: 55%
  • Price: 25%
  • Commercial: 10%
  • Social Value: 10%
Published award criteria (4)
  • Technical
  • Price
  • Social Value
  • Commercial
Lot distribution rule: Detail to be provided within the ITT documentation
What this means for your bid
  • Price carries 35 of 100 points: a 10% discount moves about 3.5 points. The method statement decides this lot, not the discount.

Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.

Procedure terms & legal framework

From the official record
Procedure method
Open procedure
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Services
Notice status
Closed
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Standard
Commercial structure
Stand-alone contract (no framework)
Competition type
Competitive procedure
GPA / WTO covered
Unspecified in notice
Recurring procurement
Yes · next expected 1 Apr 2033
First published
18 May 2026, 14:10 BST
Last source update
27 Jul 2026, 15:31 BST
Award evaluation window
Submission end – 25 Jan 2027
Authority reference
C30724
FTS notice number
2026/S 000-070875
Latest notice
Tender notice (UK4)
Classification (CPV)
Engineering services
Delivery area
UK
Official registry OCID
ocds-h6vhtk-069b07 Find a Tender

How it was run

Official notice
Run through: Atamis (Health Family) · Who buys & how to bid on Atamis
Supplier login requiredElectronic submission allowedLanguage: EN
Access & registration note: Free · one account PER buying organisation portal · password resets come "from Salesforce.com" (check spam)
Submission deadline
18 Sept 2026, 12:00 BST
Submission channel
Official e-sourcing portal
Electronic submission
Allowed
Accepted languages
en
Detailed submission instructions & authority contactsFrom official release

Timeline

18 May 2026 → 1 Apr 2027 · 7 dates
  1. Planning notice published162 days ago
    18 May 2026, 14:10 BST
  2. Market engagement147 days ago
    1 Jun 2026, 23:59 BST

    To obtain further information, including all documentation, please follow these steps:

    1. Log in to the supplier portal at: atamis-2464.my.site.com/s/Welcome ↗.
    2. Locate the opportunity using 'Find Opportunities' or use ref C31320
  3. Tender notice published92 days ago
    27 Jul 2026, 15:31 BST
  4. Next notice expected90 days ago
    28 Jul 2026, 23:59 BST
  5. Submission deadline39 days ago
    18 Sept 2026, 12:00 BST
  6. Today
    27 Oct 2026
  7. Award decision expected byin 90 days
    25 Jan 2027, 23:59 GMT
  8. Contract startsin 155 days
    1 Apr 2027, 00:00 BST

Notice history

10 events · 4 releases on Find a Tender · since 18 May 2026
  1. Preliminary market engagement notice published
    18 May 2026, 14:10 BST
    UK2
  2. Pipeline notice published
    21 May 2026, 08:31 BST
    UK1
  3. Status changed to planned
    21 May 2026, 08:31 BST
  4. Procurement method changed
    21 May 2026, 08:31 BST
  5. Planned procurement notice published
    21 Jul 2026, 08:57 BST
    UK3
  6. Deadline published: 18 Sept 2026, 12:00 BST
    21 Jul 2026, 08:57 BST
  7. Tender notice published
    27 Jul 2026, 15:31 BST
    UK4
  8. Published value updated to £2,752,000
    27 Jul 2026, 15:31 BST
    was £2,800,000
  9. Status changed to active
    27 Jul 2026, 15:31 BST
  10. Buyer details updated
    27 Jul 2026, 15:31 BST
Routine re-releases (4)
  • 2026-05: 1 release · 18 May 2026

Contracting authority & participating public bodies

2 public bodies on the notice

NUCLEAR RESTORATION SERVICES LIMITED

Contracting authorityPublic authority - central governmentPublic authority - sub-central government GB-COH: 02264251 · GB-PPON: PXPQ-2228-DGTY Hinton House Birchwood Park Avenue, Warrington, North West, WA3 6GRContact name, email

Official documents & specifications (4)

Official links; attachments are not copied

Notices published for this procedure

  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender
  • Planned procurement notice planningPlanned procurement noticeUK3Planned procurement notice on Find a Tender
  • Pipeline notice planningPipeline noticeUK1Pipeline notice on Find a Tender
  • Preliminary market engagement notice planningPreliminary market engagement noticeUK2Preliminary market engagement notice on Find a Tender