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    ContractsService Reservoir Cleaning, Maintenance and Refurbishment Framework Agreement
    Open tender

    Service Reservoir Cleaning, Maintenance and Refurbishment Framework Agreement

    Tender closes
    6d
    2 Nov 2026 · in 5 days

    Framework Agreement for cleaning, maintenance, and refurbishment of approximately 828 potable water storage tanks across Welsh Water's operational area, valued at £25.5 million over three years with extension options to eight years total.

    🇬🇧United Kingdom· WalesPublished 6 Oct 2026· 3 weeks agoviaFind a Tender
    Tender closes
    6d
    2 Nov 2026 · in 5 days
    Closing in 6 days — tender deadline on 2 Nov 2026

    Decision brief

    4 fields
    • Contract value
      est.£25,500,000
      Pounds sterling
    • Tender closes
      2 Nov 2026
      6 days left
    • Sector
      Environmental Services
      Browse related listings
    • Location
      🇬🇧United Kingdom
      Wales

    Lifecycle

    6d left

    6 days left to bid — closing this week. Opened 3 weeks ago, deadline 2 Nov 2026.

    6 Oct 2026Today2 Nov 2026

    Brief

    Dwr Cymru (Welsh Water/DCC) is seeking to establish a Framework Agreement for cleaning, maintenance, and refurbishment services for approximately 828 potable water storage tanks across its operational area. This business-critical service is essential for maintaining the cleanliness, integrity, and operational condition of water storage assets while ensuring compliance with Drinking Water Inspectorate (DWI) regulations and internal standards. Scope of Services: Cleaning: High-pressure water or soft brush cleaning with DWI-approved disinfectants, and chemical cleaning where required. All cleaning activities include inspection of service reservoirs. Maintenance: Minor planned and reactive remedial works including concrete and steel repairs, coatings, membranes, ladders, pipework, joints, and external earthworks. Emergency reactive repairs are also included. Excluded works are structural modifications, embankment works, hydraulic modifications, capacity alterations, and Reservoirs Act Panel Engineer appointments. Framework Details: The framework will be awarded to two suppliers with an initial contract term of 3 years, extendable for up to 5 additional years (2+2+1 structure). The estimated value for the initial 3-year term is £25.5 million (approximately £8.5 million annually), with a maximum 8-year contract value of £68 million. Tank Types: The estate includes below-ground and above-ground steel or concrete tanks and water towers, with most being square, underground concrete structures requiring routine cleaning and inspection per DCC's internal standard PNL 810.

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    View tender on sourceFind a Tender

    Full notice and submission process on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-0781d8

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    Buyer
    Dwr Cymru Cyfyngedig
    Sector
    Environmental Services