AwardedAwarded 14 April 2026

Fire Pressure Regulated Valves Maintenance Elizabeth Line

Transport for London · Public undertaking

In brief

Transport for London awarded fire safety and construction work to Walter Frank & Sons Limited on 14 April 2026.

The notice gives a value of £1,800,000 excluding VAT.

The contract runs for 3 years, up to 5 years with extensions, starting 27 February 2026.

The buyer says it is suitable for small and medium-sized businesses.

Built from the notice's own fields. Always check the official notice before you bid.

What the notice says

There is a requirement to establish a new contract for the maintenance of the Pressure Regulating Valves (PRVs) that form part of the Elizabeth line fire suppression system. The current contract, awarded via Single Source to the manufacturer, Walter Frank, is due for re procurement. Moving to a competitive process aligns with TfL's procurement strategy by opening the requirement to market competition, supporting value for money, improved commercial leverage, and compliance with PA23 regulations. Maintenance of the PRVs is a highly specialised activity involving off site servicing, testing and recalibration, and the issuance of Certificates of Conformity. There are 1,584 PRVs in service,…Read the full description
There is a requirement to establish a new contract for the maintenance of the Pressure Regulating Valves (PRVs) that form part of the Elizabeth line fire suppression system. The current contract, awarded via Single Source to the manufacturer, Walter Frank, is due for re procurement. Moving to a competitive process aligns with TfL's procurement strategy by opening the requirement to market competition, supporting value for money, improved commercial leverage, and compliance with PA23 regulations. Maintenance of the PRVs is a highly specialised activity involving off site servicing, testing and recalibration, and the issuance of Certificates of Conformity. There are 1,584 PRVs in service, and maintenance is required on a 36-month cycle, based on Elizabeth line Asset Engineering guidance. TfL will undertake all removal and reinstallation; the service provider will be responsible solely for offsite works. Up to 40 PRVs may be processed weekly. A competitive flexible procedure will be undertaken via Find a Tender (FTS) to ensure full market participation - including the incumbent, who is not registered on RISQS. A prior market engagement notice generated six expressions of interest. These suppliers will progress through to the next stage and would be invited to tender has it is anticipated that not all suppliers would submit one. This contract will ensure continued regulatory compliance, operational reliability of safety critical assets, and alignment with wider strategies including asset management principles, TfL's vision and values, and the commitments of the Mayor's Transport Strategy. Significant savings and commercial improvements were anticipated through the introduction of competition and achieved. A preliminary market engagement notice (UK2) was issued via the Find a Tender Service (FTS). This resulted in six expressions of interest being received via email, in addition to a submission from the incumbent supplier, bringing the total number of responses to seven. Following this engagement, only two suppliers proceeded to submit a formal bid.

Who won

WinnerValueDates
Walter Frank & Sons Limited (SME)
2 bids received
£1,128,176
Awarded 16 February 2026
14 April 2026 to 9 April 2029

Values as the award notice gives them, excluding VAT where stated.

Timeline

  1. Tender notice · UK4, notice 068794-2025
  2. Contract award notice · UK6, notice 014665-2026
  3. Contract details notice · UK7, notice 034984-2026

About the buyer

Transport for LondonLast 12 months

Procurements

377

Awards

153

Suppliers it has used most for fire safety

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From notice 068794-2025 on Find a Tender, first published 28 October 2025, last updated 17 April 2026. We last checked for changes on 28 September 2026.