Pre-tender

Digester Cleansing & Refurbishment

Details

Topic
Sewage digesters
Published
10 September 2026
Submission
1 October 2026in 5 days

Tender description

Severn Trent Water is seeking market engagement with suppliers capable of delivering digester cleansing, refurbishment and associated maintenance activities across its Bioresources assets throughout the Severn Trent region. The proposed framework is expected to cover two lots: Lot 1: Digester cleansing and other tank emptying activities. Lot 2: Digester and gas holder refurbishment, and other related assets and equipment The framework will support Severn Trent's ongoing programme of maintaining and improving digesters, gas holders and related infrastructure, helping to ensure safe, reliable and efficient operation of Bioresources assets. Suppliers may be required to provide specialist equipment, skilled personnel, project management and technical expertise to support both planned and reactive requirements across multiple sites. The engagement seeks feedback from the market on capability, capacity and commercial models.

Timeline

  1. Completed: Pre-tender published10 September 2026
    Current notice

About the buyer

Severn Trent Water Ltd supplies water and wastewater services to homes and businesses across the Midlands as a regulated utility. Ofwat oversees its commercial activity under the Competition Act 1998. Since October 2024 its supply agreements have followed the UK Procurement Regulations 2024. Competitive tenders are advertised through Find a Tender and the Achilles Utilities Vendor Database. Suppliers can also register through SAP Ariba Discovery, trade associations and an approved supplier database. New capital delivery frameworks are due to open for procurement from 2027 and will run for up to 15 years.

£434bn was the total UK public sector procurement spend in FY 2025/26.

Over the past 5 years, most of Severn Trent Water Ltd's contract awards have been in waste, cleaning and environmental services, electrical equipment and lighting and construction materials.

Relevant CPV codes

  • 45252122 · Sewage digesters
  • 45259200 · Purification-plant repair and maintenance work
  • 90470000 · Sewer cleaning services
  • 90913000 · Tank and reservoir cleaning services

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Decision makers

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