Source: https://tendernation.io/opportunities/01a13bcd-3cb6-7292-92b2-fd80f680a5fc/water-mist-suppression-system-replacement [Skip to main content](#main-content) awardedGBopen procedureSuitable for SMEs # Water Mist Suppression System Replacement [Transport for London](https://tendernation.io/buyers/transport-for-london) Estimated value £2,962,195 Published 31 Mar 2026 Deadline Closed 24 Nov 2025 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - Below-threshold contract Buyers cannot shortlist bidders on suitability before tenders are in, so everyone gets to submit a bid (except some larger works contracts). [Procurement Act 2023, section 85](https://www.legislation.gov.uk/ukpga/2023/54/section/85) - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](/opportunities/for-small-businesses)## About this tender The Water Mist Suppression and Sprinkler Systems requirement is for the procurement of a principal contractor to remove, replace and commission the Water Mist Suppression and Sprinkler Systems currently installed in 34 locations situated within 22 different London Underground stations. TfL's has identified that the fire suppression and sprinkler systems currently installed in the sites (Cleaner's Stores, Bin Stores, Stores and Retail Tenancies) are either life-expired, non-compliant or not fit for purpose under Article 5 of the Fire Precautions Sub-surface Railway Regulations 2009. It has also been identified that these systems do not have / meet the current applicable standards such as BS EN14279 and BS8489. The water mist systems have been installed on the TfL infrastructure in the early 1990's following the publication of the Fire Precautions Sub-surface Railway Regulations 1989 (updated 2009). The systems were installed where conventional sprinkler systems were not considered viable due to practical or logistical constraints and designed, installed and maintained in compliance with the American Standard NFPA750. Due to the increasing number, sizes, type of storage and trading activities within the network, further review of risks and tests for these suppression protection systems were undertaken and evaluated. This confirmed a requirement to replace these systems and design modern, compliant equivalent water mist system to replace the ageing noncompliant systems currently installed in the TfL LU estate. The modern systems will be tested by TfL to BS EN 14972-1 Annex A with a deluge time of not less than 60 minutes from the appropriate number of cylinders located locally, to provide reliable fire suppression to specific rooms identified. These new installations will be designed for but not limited to Cleaner's Stores, Bin Stores, Stores and Tenancies. In some cases, wet sprinklers systems extensions will replace the ageing Water Mist systems where they are available and economically viable. Read full description ## CPV classification Firefighting equipment installation workSprinkler systems installation work Source Find a Tender (UK) · Notice ocds-h6vhtk-051c5a-2026-03-31T13:02:56+01:00 [View official notice ](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-051c5a-2026-03-31T13:02:56+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. 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