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PROCUREMENT OPPORTUNITY

SF6 Leak Repair Framework

NATIONAL GRID ELECTRICITY TRANSMISSION PLC · Planned procurement notice on Find a Tender

Tender information last checkedLast checked 24 Sept 2026, 09:41.

Opportunity overview

National Grid Electricity Transmission (NGET) intends to establish a framework for the provision of Sulphur Hexafluoride (SF6) leak repair, leak reduction and preventative treatment services across its portfolio of Gas Insulated Switchgear (GIS) and Gas Insulated Busbar (GIB) assets located at transmission substations throughout Great Britain. The framework is intended to increase the delivery of SF6 emissions reduction activities through the use of standardised contracting arrangements and approved repair methodologies. Appointed contractors will be responsible for the design, installation, testing, inspection and quality assurance of external, non-intrusive repair solutions that maintain asset integrity and operational performance while reducing or preventing SF6 leakage. Solutions may include permanent repairs, leak-rate reduction treatments, and preventative interventions, and will typically be required to be installed without taking equipment out of service where reasonably practicable. Contractors will be expected to provide technically robust, evidence-based solutions, operate under ISO 9001-compliant quality management systems, and fulfil the roles of Principal Contractor and Principal Designer under the Construction (Design and Management) Regulations 2015. The framework will enable NGET to respond efficiently to emerging SF6 emission reduction requirements across its transmission network. The anticipated term of the framework will be a 3-year initial term with 2 year extension options upon mutual agreement.

Classification

  • CPV50532400 — Repair and maintenance services of electrical distribution equipment
  • CPV50710000 — Repair and maintenance services of electrical and mechanical building installations
  • CPV51110000 — Installation services of electrical equipment
  • CPV65300000 — Electricity distribution and related services
  • CPV71334000 — Mechanical and electrical engineering services

Lots

  • Lot 1£7.5m

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
WS5846963578
Status
planned
Procurement Method
selective
Procurement Method Details
Competitive flexible procedure
Main Procurement Category
services
Above Threshold
Yes
How to submit
Suppliers wishing to participate in this opportunity should complete the attached 'Expression of Interest (EOI) & SAP Ariba On-boarding Form' and return it to erin.silcock@nationalgrid.com After the Tender Notice is issued on Find a Tender, National Grid Procurement will issue the tender documents via SAP Ariba to those suppliers that have expressed their interest in response to this notice. https://service.ariba.com/Sourcing.aw/109521006/aw?awh=r&awssk=tqWYisCc&dard=1&ancdc=1
Expression Of Interest Deadline
25 Nov 2026, 23:59
Has Recurrence
Yes

Legal basis

Id
2023/54
Scheme
UKPGA

Special regime

utilities

Techniques

Has Framework Agreement
Yes

Framework Agreement

Maximum Participants
6
Method
withAndWithoutReopeningCompetition
Type
closed

Submission terms

Electronic Submission Policy
allowed

Languages

en

Expected award period

Ends
10 May 2027, 23:59

Communication

Future Notice Date
18 Nov 2026, 23:59

Recurrence

Dates

Entry 1
Starts
18 May 2030, 23:59

Contract terms

Financial Terms
42 days

Lots and requirements

Entry 1
Id
1
Status
planned
Has Renewal
Yes

Value

Including VAT
9,000,000
Amount
7,500,000
Currency
GBP

Selection criteria

Criteria

Criterion 1
Type
technical
Description
National reach Comply with Construction (Design and Management) Regulations 2015

Contract period

Starts
31 May 2027, 00:00
Ends
31 May 2030, 23:59
Max Extent Date
31 May 2032, 23:59

Renewal

Description
Extension options are +1 year, +1 year. In place through mutual agreement.

Items and delivery

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
50532400
Description
Repair and maintenance services of electrical distribution equipment
Entry 2
Scheme
CPV
Id
50710000
Description
Repair and maintenance services of electrical and mechanical building installations
Entry 3
Scheme
CPV
Id
51110000
Description
Installation services of electrical equipment
Entry 4
Scheme
CPV
Id
65300000
Description
Electricity distribution and related services
Entry 5
Scheme
CPV
Id
71334000
Description
Mechanical and electrical engineering services

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Published documents

Entry 1
Id
A-21739
Document Type
biddingDocuments
Description
Expression of Interest response form
Format
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Planning and budget

Documents

Entry 1
Id
084427-2026
Document Type
plannedProcurementNotice
Notice Type
UK3
Description
Planned procurement notice on Find a Tender
Published
7 Sept 2026, 13:45
Format
text/html

Buyer, suppliers and contacts

Organisation 1
Name
NATIONAL GRID ELECTRICITY TRANSMISSION PLC
Id
GB-COH-02366977

Identifier

Scheme
GB-COH
Id
02366977

Additional Identifiers

Entry 1
Scheme
GB-PPON
Id
PHHJ-6513-BWZT

Address

Street Address
1 - 3 Strand
Locality
London
Postal Code
WC2N 5EH
Country
GB
Country Name
United Kingdom
Region
UKI32

Contact

Name
Erin Silcock

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
privateUtility
Description
Private utility

Recorded locations

  • Buyer location · London · UKI32 · WC2N 5EH · United Kingdom
  • Delivery location · UK · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. 084427-2026Planned procurement notice on Find a Tender ·