Jan De Nul

Jan De Nul

Shaping water and land. From complex offshore services for both fossil and renewable energy sectors, over large dredging and reclamation project at the edge of water and land to all possible civil and environmental works onshore.

Thanks to the continuous investment in people and own equipment, in combination with the intense cooperation between the different departments, Jan De Nul Group studies and executes complex multidisciplinary projects from A to Z. A total package, time after time, and in a sustainable way.

Supporting Services

The supporting services play an important part in the efficient management of projects. On-site project teams and head office services exchange knowledge on a daily basis. Theoretical knowledge and experience are tested against the day-to-day practice and vice versa.

Department Design and Engineering

Ever more clients are seeking an overall solution for their building plans with an integrated approach of design and execution. Jan De Nul Group recognised this trend some time ago and started setting up a fully fledged, professional engineering department.

The integration of its specific expertise in both the design and execution phases creates considerable ‘added value’ resulting in more economic and safer building projects, increase of quality and meticulous control of any risks involved.

The engineering department of Jan De Nul Group consists of a sizable team of specialised experts, qualified engineers, designers and draftsmen and has state-of-the-art soft- and hardware at its disposal.

Survey Department

In order to be able to chart its dredging projects and large infrastructure works in an accurate manner and to follow them up promptly and efficiently, Jan De Nul Group has set up its own survey division with experts and engineers deployed on various projects worldwide.

In order to meet the ever stricter demands of customers, the division has state-of-the-art, high-tech measuring equipment for hydrographical and topographical measurements at its disposal. The team also monitors closely all recent technological developments and tests them out in preparation for future challenges in the dredging and offshore industry.


Jan De Nul Group is well aware that its activities (dredging and offshore construction) have a big effect on biodiversity. We operate very often in areas which are highly sensitive. That is precisely the reason why Jan De Nul Group has set up its own in-house Marine Environmental Department (or MARED for short). The Marine Environmental Department monitors projects during each phase, from contracting, preparation, and mobilisation to implementation of the applicable Environmental Management Plan EMP). This Environmental Management approach will reduce adverse impact on the local construction site, and the surrounding marine environment to a minimum.

After studying the effects and drawing up environmental plans in the office, we also closely monitor the influence of the project on the environment on site. What started with monitoring the turbidity of the water has broadened over time to become something much more i.e. management of the impact on water quality, air quality, sound, waste, and flora and fauna.

The MARED Department within Jan De Nul Group has at its disposal high-tech equipment which enables us to take high-end readings of the quality. The MARED Department within Jan De Nul Group is responsible for more than just monitoring biodiversity and the vulnerability of the planet. This department also proactively seeks preventive methods to minimize the adverse impact and new ways of positively enhancing the eco-system.

Apart from earning the Group the ISO 14001 certificate, the introduction of an efficient environmental management system also enables the Group to meet strict environmental demands.


Jan De Nul Group can rely on an extensive stock of formwork material for all kinds of applications and forms, both for system formwork and conventional form elements.

The formwork division details the formworks based on the design data and in consultation with the executing teams is inclusive of safety measures, scaffolding, etc.

Specific and special formwork is made to size and assembled in Jan De Nul’s own workshop. For executing concrete construction works, formwork plans are made for every casting phase, linked to parts lists that are used for the production in the workshop and for the transport to the construction sites.

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