Throughout our diverse project experience across a wide range of industries, one thing remains constant: our commitment to excellence.
WJ Group has vast experience delivering groundwater management and groundwater treatment services at some of the world’s busiest airports, including London Heathrow, Dubai International, and Hamad International. We understand the unique constraints and security requirements of airside access and are well-versed in working under these challenging conditions.
For over 30 years WJ has been providing dewatering services for basements, from small domestic projects to large multi-storey basements for commercial and residential developments. Our expertise covers managing adjacent structures, limited discharge options, and complex project requirements such as sealing internal artesian wells.
With a proven track record of delivering major infrastructure projects, WJ specialises in dewatering solutions tailored to demanding schedules and complex requirements. From the Lee Sewer Tunnel to Crossrail, our experienced team ensures meticulous planning, seamless integration, and effective coordination with contractors for smooth project execution.
Ports and marine projects face unique challenges, including tidal fluctuations, rapid groundwater level changes, and environmental sensitivities. WJ Group is highly experienced in delivering effective groundwater control in these complex environments, with careful attention to discharge water quality, regulatory compliance, and the protection of surrounding ecosystems.
WJ offers expert advice on on shaft and tunnel construction dewatering strategies, providing safe and efficient dewatering methods to ensure stable, dry ground. We also provide compact equipment such as low headroom drilling rigs and compact pumping plants for restricted tunnel environments, ensuring seamless project execution.
WJ designs, installs, and tests water supply wells up to 200m depth and 450 mm finished bore, ensuring safety, cleanliness, and long-term reliability in all conditions. Our highly experienced team manages every aspect of water well drilling and development to guarantee efficient, contamination-free water extraction.
WJ UK provides specialist dewatering, groundwater control, and water management solutions across the power generation and utilities sectors. From nuclear and gas power stations to wastewater and water treatment works, our expertise supports complex, below-ground infrastructure where groundwater poses a significant challenge. We have a proven track record on nationally significant projects including Sizewell B and C, Beckton and Williamsgate WTW, and strategic utility schemes such as UKPN Humber Crossing and London Power Tunnels. Our solutions ensure safe excavations, operational resilience, and long-term infrastructure performance.
From tunnel approaches to underground stations, WJ has extensive experience in managing dewatering for new and existing railway infrastructure. Our team expertly navigates the complexities of minimising disruptions to live rail services, ensuring safety, precision, and the successful delivery of effective, tailored solutions.
Sewage plants are often built on low-lying ground with high groundwater levels, presenting unique and complex challenges. WJ has extensive experience updating and constructing new sewage treatment works, delivering advanced groundwater control and management solutions that keep operations running smoothly while modernising and upgrading critical infrastructure for long-term resilience.
