The water company went out to tender to establish a structured, multi-supplier maintenance and support arrangement for Yorkshire Water's thickening and dewatering assets, covering operational sites across Bioresources, Process & Pumping (P&P), and Clean Water.

The arrangement will deliver a full service model including preventative and reactive maintenance, asset inspections, critical spare supply and management, and equipment hire where required.

The contract was tendered in three separate Lots

Covers the maintenance, overhaul, repair, and performance optimisation of centrifuges deployed across Yorkshire Water's sites. Includes access to hire units to minimise downtime during major overhauls or breakdowns.o Suppliers must provide both reactive and planned maintenance, with clear definitions of activities to be carried out on-site versus off-site workshop facilities.o Applies across multiple geographies, supporting resilience and coverage.

Covers the maintenance, overhaul, repair, and performance optimisation of thickeners, belt presses, plate presses and gravity belt thickeners deployed across Yorkshire Water's sites.o Includes access to hire units to minimise downtime during major overhauls or breakdowns.o Suppliers must provide both reactive and planned maintenance, with clear definitions of activities to be carried out on-site versus off-site workshop facilities.o Applies across multiple geographies, supporting resilience and coverage.

A fixed-fee, performance-driven service model covering the end-to-end maintenance responsibilities for high-priority operational sites.o Under the Total Care Package (TCP), suppliers assume responsibility for availability, uptime, overhaul cycles, optimisation, and proactive fault prevention.o This lot is split into two sub-lots: Lot 3a - P&P Critical Sites and Lot 3b - Bioresources Critical Sites

MSE Hiller, rhames Ltd and Veolia UK Ltd. have been awarded contracts under Lot 1, which has an estimated value of £497,900 including VAT. The contract for Lots 2 and 3, which has an estimated value of £3.087 million including VAT, has been awarded to rhames Ltd.

Current estimated start and end contract dates are 1 September 2026 to 31 August 2030, with a further possible extension option of up to 31 August 2032

Award decision date was 7 July 2026 and earliest date the contract will be signed is 15 August 2026.