UKNNL - Fabrication, Machining, Associated Supplies and Services Open Framework
United Kingdom National Nuclear Laboratory Limited · Local or regional public body
In brief
United Kingdom National Nuclear Laboratory Limited is looking for suppliers for construction and building maintenance work (UK-wide).
It is a framework worth up to £15,000,000 excluding VAT: the most the buyer expects to spend across all suppliers, not one contract.
The contract runs for 4 years, up to 8 years with extensions, starting 8 March 2027.
It is split into 5 lots, so a supplier can bid for part of the work.
The buyer says it is suitable for small and medium-sized businesses.
Bids close at 1pm, Tuesday 8 December 2026.
Built from the notice's own fields. Always check the official notice before you bid.
Can I win this?
Key dates
- Questions by
- 1pm, Wednesday 2 December 2026
- Bids by
- 1pm, Tuesday 8 December 2026
How bids are scored
Non-Nuclear Rig Fabrication and Machining
Technical 100%
Quality matters most. You can win without being the cheapest.
Nuclear Rig Fabrication
Technical 100%
Quality matters most. You can win without being the cheapest.
Infrastructure Fabrication and Machining & Engineering Systems
Technical 100%
Quality matters most. You can win without being the cheapest.
Associated Supplies, Products, Services & Technical Support
Technical 100%
Quality matters most. You can win without being the cheapest.
1 more lot is scored in the official notice.
Competition
Usually high: a median of 12 bids per contract for this buyer (from 13 awards in the last 12 months).
Framework
Winning puts you on a list of suppliers the buyer can call on; it does not guarantee work. The £15,000,000 is the most the buyer expects to spend across all suppliers over the framework's life, not one contract.
What the notice says
The framework has the ability to award contracts through restricted quick quotes, open quick quotes, mini competition and direct award. Call-off contracts can be either fixed cost or cost reimbursable. Mini-Competition Where mini-competition is used, this is to be via the e-tender portal and must include all suppliers on the applicable lot. Each mini competition will be restricted to only one Lot. Should requirements at call-off not have been priced at point of framework creation, mini-competition should be held allowing all suppliers in the applicable Lot to price, accordingly, providing the additional requirement fits within the overall subject matter of the applicable Lot.…Read the full description
Should I bid?
Tick what applies to you. Nothing is saved.
How to bid
- Read the full notice on Find a Tender, including any tender documents it links to.
- Register your organisation on the Central Digital Platform (through Find a Tender) if you have not already. Suppliers need to be registered to take part in procurements under the Procurement Act 2023.
- Follow the submission instructions in the notice; it does not name an e-tendering portal.
- Send clarification questions before 1pm, Wednesday 2 December 2026.
- Make sure your bid arrives before 1pm, Tuesday 8 December 2026. Late bids are usually rejected.
Lots
| Lot | Trade | Value |
|---|---|---|
| Non-Nuclear Rig Fabrication and Machining 8 March 2027 to 7 March 2031 What this lot coversThis Lot is for Non-Nuclear Rig Fabrication and Machining. See Invitation to Tender for further information on Lot 1 and Procurement Specification Appendix A. | Construction, Building maintenance and repairs, Heating, plumbing and ventilation, Architecture and engineering | £15,000,000 |
| Nuclear Rig Fabrication 8 March 2027 to 7 March 2031 What this lot coversThis Lot is for Nuclear Rig Fabrication .See Invitation to Tender for further information on Lot 2 and Procurement Specification Appendix A. | Construction, Building maintenance and repairs, Heating, plumbing and ventilation, Architecture and engineering | £15,000,000 |
| Infrastructure Fabrication and Machining & Engineering Systems 8 March 2027 to 7 March 2031 What this lot coversThis Lot is for Infrastructure Fabrication and Machining & Engineering Systems. See Invitation to Tender for further information on Lot 3 and Procurement Specification Appendix A. | Construction, Building maintenance and repairs, Heating, plumbing and ventilation, Architecture and engineering | £15,000,000 |
| Associated Supplies, Products, Services & Technical Support 8 March 2027 to 7 March 2031 What this lot coversThis Lot is for Associated Supplies, Products, Services & Technical Support. See Invitation to Tender for further information on Lot 4 and Procurement Specification Appendix A. | Construction, Building maintenance and repairs, Heating, plumbing and ventilation, Architecture and engineering | £15,000,000 |
| Complex and/or High Value Rig Fabrication & Machining 8 March 2027 to 7 March 2031 What this lot coversThis Lot is for Complex and/or High Value Rig Fabrication & Machining. See Invitation to Tender for further information on Lot 5 and Procurement Specification Appendix A. | Construction, Building maintenance and repairs, Heating, plumbing and ventilation, Architecture and engineering | £15,000,000 |
Timeline
- Tender notice · UK4, notice 106629-2026
About the buyer
Procurements
57Awards
32Suppliers it has used most for construction
- Shepley Engineers Limited1 contract
Similar open tenders
All open construction tenders- £235kestimated
- £450mframework ceiling
- £280mestimated
- £600kframework ceiling
- £225kestimated
From notice 106629-2026 on Find a Tender, first published 10 November 2026. We last checked for changes on 10 November 2026.