February 2026

Elite Precast supports £10m upgrade at Dronfield Wastewater Treatment Works

Elite Precast Concrete has played a key role in the successful upgrade of the Dronfield Wastewater Treatment Works in Derbyshire.

The scheme supports Yorkshire Water’s efforts to improve water quality in the River Drone through innovative precast solutions and is part of a wider £10 million capital investment programme, was delivered by main contractor Tilbury Douglas with the civils works undertaken by CPC Civils.

A standout element of the scheme was the use of Elite Precast Concrete’s Retainer-Rock® walling system — a modular, engineered block solution that delivers robust earth retention with a natural stone finish. This system was selected for its quick dry-laid installation, minimal on-site labour requirements, long service life and its ability to meet aesthetic expectations within the river corridor.

“Retainer-Rock® not only supports structural performance but also reduces environmental impact and installation time compared with traditional in-situ concrete walls,” said Paul Cartwright, Business Development Director at Elite Precast. The precast units contributed to a leaner installation process, helping contractor CPC Civils meet tight handover deadlines and regulatory commissioning requirements.

The upgrade is aimed at reducing phosphorus levels in treated effluent, addressing environmental compliance and enhancing long-term performance of the wastewater facility. As part of the civils package, CPC Civils was responsible for extensive site enabling works, pipe connections, drainage, and installation of new services, including a backwash pump station.

The project was completed and commissioned in December 2024, in line with Yorkshire Water’s improvement objectives. The successful collaboration between Elite Precast Concrete, CPC Civils and Tilbury Douglas has secured follow-on work into the AMP8 investment period.

For further information on the Retaining Wall solution, please visit www.eliteprecast.co.uk/concrete-walling-products/retainer-rock/ or call Paul on 01952 588885