Ship repair and maintenance

Royal Niestern Sander has a wide, multi-specialized experience in ship repair.

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  • 100+ years of experience
  • Strategic location near the North Sea
  • Full service shipyard

Key figures

2 floating docks up to 176 meters
Tugboat Created with Sketch.
147 meter slipway
Warehouses Created with Sketch.
600 meter quay side
160 skilled employees

Ship repair

Royal Niestern Sander has a wide, multi-specialized experience in ship repair. The company has specialists in all existing sub-disciplines. This is an appropriate response to the demand for surveys, mobilizations, maintenance and repair orders. Our national and international customer base includes large and small commercial vessels, inland-vessels, tugboats and ferry services, naval vessels, the offshore industry, coastal and marine fisheries and the government. Our port and voyage repair crew can assist you in the ports of Delfzijl and Eemshaven. Royal Niestern Sander offers a wide range of repair services on site. We are available 24/7 and 365 days a year. We ensure that your ship is quickly on course again.

  • 24/7 available
  • Strategic location
  • Fully equipped workshop
Discover our projects

Dock 1

  • 105 meters in length
  • 19 meters in width
  • Vessels of 5.000 ton (~10.000 DWT)

Dock 2

  • 176 meters in length
  • 27 meters in width
  • Ships up to 10.000 ton (~20.000 DWT)


  • 147 meters in length
  • Inner dike location
  • Lightweight of 1.500 ton per ship

Ship maintenance

Temporarily being out of business for ship maintenance always feels like a waste of time and money. However, unplanned failures can come with even more repair costs. Niestern Sander can assist you with timely execution of any kind of maintenance with her diverse facilities, experience and employees. With our docks close to the North Sea you will be back on the water as soon as possible. The skilled maintenance crews of Niestern Sander can offer any service you need. Our experience ranges from inland to seagoing vessels, and from offshore to ferries. 

  • Annual, intermediate and special surveys
  • High pressure & washing & hydrojetting 
  • Steel repairs & renewals
  • Painting
  • Machinery repairs & overhauls
  • Steering gear repairs

Track record ship repair

Conversion supply vessel 'KASTEELBORG' into walk to work vessel

The Blue Queen arrived in Delfzijl from Norway in late 2017. This standard PX121 Platform Supply Vessel (PSV) then spent the next 12 weeks being whipped into shape by Dutch shipyard Royal Niestern Sander, working on behalf of Wagenborg Offshore. Converted into a dedicated Walk-to-Work Emergency Response and Rescue Vessel, the PSV – renamed the Kasteelborg – was delivered on schedule in March 2018. It was a challenging conversion project in which time and planning played a major role.

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Fully electric utility vessel 'PW18'

Shipyard Royal Niestern Sander – a wholly owned subsidiary of the Wagenborg Group – has delivered the first Dutch fully electric utility vessel to the Province of Groningen. The new green vessel, the PW 18, was christened in March 2019 by Fleur Gräper-van Koolwijk, Executive Councillor for the Province of Groningen. After the christening ceremony, we spoke to the shipyard’s Managing Director Jan Doorduin and Fleur Gräper-van Koolwijk about this sustainable ship.

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Naval research vessel 'DUPUY DE LÔME'

In early 2002, a project was submitted that was both ambitious and bold. It was a research vessel for the French shipping company Campagnie National de Navigations, which acted on behalf of the French navy. This construction makes it possible to build a naval vessel on a foreign shipyard under a merchant flag.

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