Official UK procurement notice
Provision of Leakage and Repair
Authority: NORTHERN GAS NETWORKS LIMITED (Public body)
What is being bought5 lots · detail below
Published requirement descriptionThe products under this Framework Agreement are used throughout the NGN network.
The purpose of this framework is to ensure continuity of supply of the sealant and associated equipment to the business at agreed rates and lead time and to ensure products conform to the correct specification and standards.
The items under the framework agreement met the necessary Gas Industry Standards, LC9, LC12 and LC24, but there was a national strategy group considering if there was a requirement for the sealant to be manufactured to British Standards.
In September 2022 new guidance and standards were published.
This event was conduced under PA23 - PR24.
The scope was split into 5 lots, indicated below:
Lot 1 - Annular sealants
Lot 2 - Leakage Sealants
Lot 3 - Bar Hole Sealing
Lot 4 - Flow Stopping
Lot 5 - Live Insertion
Interested suppliers were able to bid for any of the lots. This means they can bid for one or all or anything in between.
This Framework value is estimated at £3m for the lifecycle of the contract.
- How the procedure runs: This procurement will follow the following process: - Tender notice issued (this notice) for 25 days - Interested suppliers to follow Market Dojo link to the Conditions of Participation stage (Pass/Fail) - Suppliers who Pass the Conditions of Participation will be invited to Accreditations Questionnaire (Pass/Fail) - Suppliers who Pass the Accreditations Questionnaire will be invited to a PQQ - The PQQ end date 31st October 2025 - PQQ responses evaluated - Suppliers who score over 60% will be invited to tender (RFP Phase 1) - RFP Phase 1 live until 13th February 2026 - RFP Phase 1 responses evaluated based on 100% non- commercial (Suppliers must achieve a minimum % score of 70% to move on to RFP 2) - All participants who pass RFP Phase 1 will be invited to RFP Phase 2. - RFP Phase 2 live until 8th May 2026 - RFP Phase 2 responses evaluated based on 100% Contract Challenges (Information only Commercial section) - Final evaluations carried out - Suppliers notified of the outcome Full details are made available in the tender scope. If supplementary stages are required throughout the process, or stages noted in the strategy defined above are no longer required, it is at NGN's discretion to include or remove stages. It is at the discretion of NGN to change the weightings/criteria or add additional sub-criteria/weightings to the PQQ or RFP if there is a need to do so before the submission deadline of the relevant stage. Any changes to the evaluation criteria will be communicated to all Bidders.
CPV: Sealants
How this framework works
From the published notice- Type
- Closed framework
- Call-offs
- call-offs may be awarded directly or by further competition
- Framework period
- 3 yrs 2 mo · up to 8 yrs 2 mo from 1 Sept 2026
Published description of the framework
NGN will award each individual line a primary & alternative supplier/s.
Award for alternative suppliers will only be given to any supplier that is awarded as a primary supplier of any line. If a supplier does not win any primary line, they will not be awarded a spot on the framework.
Lots and requirements (5)Procurement structure
5 lots · all with a published value · same conditions of participation on every lotEvery one of these 5 lots carries the same published figure, £3,000,000: it is the framework's maximum for the whole notice, not each lot's own budget, and no share per lot is published. The cards below say ceiling above rather than repeat it.
Lot #1Annular sealantsAwardedRenewalceiling above
The source published no individual description for this lot.
- Condition of participationshortlisting
Supplier will have the opportunity to select which lot/s they wish to bid for.
Lot #2Leakage SealantsAwardedRenewalceiling above
The source published no individual description for this lot.
- Condition of participationshortlisting
Supplier will have the opportunity to select which lot/s they wish to bid for.
Lot #3Bar Hole SealingAwardedRenewalceiling above
The source published no individual description for this lot.
- Condition of participationshortlisting
Supplier will have the opportunity to select which lot/s they wish to bid for.
Lot #4Flow StoppingAwardedRenewalceiling above
The source published no individual description for this lot.
- Condition of participationshortlisting
Supplier will have the opportunity to select which lot/s they wish to bid for.
Lot #5Live InsertionAwardedRenewalceiling above
The source published no individual description for this lot.
- Condition of participationshortlisting
Supplier will have the opportunity to select which lot/s they wish to bid for.
What it takes to wini
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 morei
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).
- Condition of participationshortlisting
Supplier will have the opportunity to select which lot/s they wish to bid for.
- “Provision of Leakage and Repair” is a framework: the contest is a place on its panel, not a single contract: call-offs may be direct or by further competition.
Procedure terms & legal framework
From the official record- Procedure method
- Competitive flexible procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Goods
- Notice status
- Awarded
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Utilities
- Commercial structure
- Framework agreement
- Who may use this agreement
- Not stated in the notice; call-off rights may be limited to the establishing authority
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 21 Aug 2025, 15:56 BST
- Last source update
- 14 Apr 2026, 12:21 BST
- Award evaluation window
- Submission end – 1 Jul 2026
- FTS notice number
2025/S 000-050616- Latest notice
- Contract award notice (UK6)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-058c52Find a Tender
- How it runs
This procurement will follow the following process:
- Tender notice issued (this notice) for 25 days
- Interested suppliers to follow Market Dojo link to the Conditions of Participation stage (Pass/Fail)
- Suppliers who Pass the Conditions of Participation will be invited to Accreditations Questionnaire (Pass/Fail)
- Suppliers who Pass the Accreditations Questionnaire will be invited to a PQQ
- The PQQ end date 31st October 2025
- PQQ responses evaluated
- Suppliers who score over 60% will be invited to tender (RFP Phase 1)
- RFP Phase 1 live until 13th February 2026
- RFP Phase 1 responses evaluated based on 100% non- commercial (Suppliers must achieve a minimum % score of 70% to move on to RFP 2)
- All participants who pass RFP Phase 1 will be invited to RFP Phase 2.
- RFP Phase 2 live until 8th May 2026
- RFP Phase 2 responses evaluated based on 100% Contract Challenges (Information only Commercial section)
- Final evaluations carried out
- Suppliers notified of the outcome
Full details are made available in the tender scope.
If supplementary stages are required throughout the process, or stages noted in the strategy defined above are no longer required, it is at NGN's discretion to include or remove stages.
It is at the discretion of NGN to change the weightings/criteria or add additional sub-criteria/weightings to the PQQ or RFP if there is a need to do so before the submission deadline of the relevant stage.
Any changes to the evaluation criteria will be communicated
to all Bidders.
How it was run
Official notice- Requests to participate (first stage)
- 16 Sept 2025, 17:00 BST
- Appointment period ends
- 16 Sept 2025, 17:00 BST
- Electronic submission
- Not allowed
- Accepted languages
- en
Please review the attached document and follow instructions within in order to participate in this event.
It is suppliers responsibility to follow all instructions to participate in the attached document within this tender notice.
Timeline
21 Aug 2025 → 1 Sept 2026 · 7 dates- Tender notice published21 Aug 2025, 15:56 BST
- Admission / appointment period endsperiod end, not a bid countdown16 Sept 2025, 17:00 BST
- Assessment summaries sent195 days ago13 Apr 2026, 00:00 BST
- Latest notice published194 days ago14 Apr 2026, 12:21 BST
- Standstill ends184 days ago23 Apr 2026, 23:59 BST
- Award decision expected by115 days ago1 Jul 2026, 23:59 BST
- Contract starts54 days ago1 Sept 2026, 00:00 BST
Notice history
4 events · 2 releases on Find a Tender · since 21 Aug 2025- Tender notice published21 Aug 2025, 15:56 BSTUK4
- Contract award notice published14 Apr 2026, 12:21 BSTUK6
- Status changed to complete14 Apr 2026, 12:21 BST
- Contract signature expected27 Apr 2026, 23:59 BSTscheduled
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| Across several lots1 award | |||
| A L H SYSTEMS LIMITED, Chemence LtdSME, GAS SEALING SOLUTIONS LIMITED, M.W. (POLYMER PRODUCTS) LIMITED, Steve Vick International27 Apr 2026 – 26 Apr 2029 · up to 26 Apr 2034Extensions: 3 year initial term with the option to extend a further 5 x 1 years thereafter | £3,000,000 inc. VAT | 27 Mar 2026standstill to 23 Apr 2026 | Standstill |
Contracting authority & participating public bodies
Framework contractors & participating bidders
5 commercial parties on the notice- A L H SYSTEMS LIMITEDFramework contractor
- CHEMENCE LIMITEDFramework contractor
- GAS SEALING SOLUTIONS LIMITEDFramework contractor
- M.W. (POLYMER PRODUCTS) LIMITEDFramework contractor
- STEVE VICK INTERNATIONAL LIMITEDFramework contractor
Official documents & specifications (3)
Official links; attachments are not copiedTender pack and attachments
Notices published for this procedure
- Contract award notice Contract award notice on Find a Tender
- Tender notice Tender notice on Find a Tender