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Dewatering: +966 53 336 2416

Pump Rental / Oil & Gas: +966 50 813 8972

Comprehensive dewatering solutions

WJ Group has a long heritage in comprehensive dewatering systems and groundwater control to facilitate the building of structures that extend below groundwater levels. We offer 
a complete design, installation and maintenance service so there is a solution for all your project needs.

Understanding
construction dewatering and groundwater control

Dewatering systems are essential in construction, providing temporary lowering of groundwater levels for excavations and structures that extend below the water table. Dewatering systems often work in co-ordination with temporary shoring works to provide a dry and stable excavation. The water that’s pumped out is typically discharged into a storm drainage system, released to the sea, or recharged back into the ground, depending on site conditions and local regulations.

Dewatering methods include:

Deepwell Systems, Wellpoint Systems, Sump Pumping Systems, French Drain and Trenching Systems.

Factors such as the type of soil, presence of fractured Coralline Limestone, proximity to sea and open water, and the depth of the excavation will all influence which dewatering methods will be best suited to your project.

Benefits of dewatering:

It is no secret that groundwater can pose one of the largest risks to a construction project. WJ not only aims to help our clients understand and manage these risks, but also provide competitive and practical dewatering solutions which:

– Provide a ‘dry’ excavation
– Improve excavation stability
– Pump water free of silts and sands
– Reduce temporary shoring measures
– Reduce environmental impacts
– Improve safety for your work force
– Reduce project costs and programme time

Our areas of expertise

From the complex to the compartmentalised, WJ has the depth of experience and expertise to deliver to your exact water management needs.

Construction site with trenches and machinery

Wellpoint Dewatering

Wellpoint systems offer a fast, cost-effective way to manage groundwater on shallow excavation projects such as pipelines and basements. Easily installed in most soil types, they provide reliable drawdown of up to 4m. WJ offers a full design and installation service, tailored to your site’s conditions.

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Deepwell Dewatering

Ideal for deep excavations, shafts and tunnels, deepwell systems use submersible pumps in drilled wells to lower groundwater levels. WJ designs and installs tailored solutions that deliver reliable drawdown even in complex ground conditions, backed by decades of experience across the Middle East and beyond.

Comprehensive Dewatering Solutions - Excavated site with water and machinery

Sump Pumping

Sump pumping is a simple but highly effective way to manage groundwater inflows in rock and stable soils. It’s often used alongside deepwells or French drains, and is ideal for overpumping from lagoons, manholes, and confined areas. WJ provides robust electric pumps and smart installation strategies.

Comprehensive Dewatering Solutions - Engineer overlooking big construction site

Why WJ Group for
Groundwater Management?

Whether your project is large or small, expert advice is crucial for effective groundwater management. Our experienced team will guide you through the entire process, providing you with the most cost-effective and reliable solutions. We offer a complete design, installation, and maintenance service package tailored to your project needs.

Groundwater Management project successes