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Gantries and winches

  • (De)installation of gantries.
  • Machining works to pivot eyes and hinges.
  • Machining including build up welding and machining
  • Recondition and/or fabrication of new wire sheaves and shafts.

On-site line boring / machining and milling works

  • In-situ machining
  • Line boring
  • Milling
  • Flange facing
  • Reconditioning by means of welding up (surface and holes)
  • Alignment works

Dry-dock & repair

Repair supervision/guidance

If it is either a small repair, (de-)mobilization or a complete dry-docking, we can be of assistance for supervision and/or guidance during the complete project including finding a suitable yard or repair location. If this is not enough, we can even take the whole project completely out of your hands and coordinate it from A to Z. This is possible due to our wide range of experience and close cooperation with direct partners.

  • Supervision during repairs all around the world
  • Tendering for your repair projects
  • (de)mobilization for offshore vessels
  • Training/advisory during repairs

Specification and planning

We have the knowledge to perform inhouse estimation, prepare offers, review and/or adjust repair specifications and to prepare complete repair planning. Our key approach is that we like to discuss the planning up front with all parties involved before the works commence. This to ensure an optimal planning and minimize delays for everyone involved.

Contact us

Contact us

Let's break the ice

We'd love to hear from you. 

Do you have a challenge, question, inquiry or would you like to hear more about us and what we could help you with. Depending on your wish feel free to reach out and let's check the possibilities together.


All4dredging

Your maritime service provider specialized in dredger and offshore vessel repairs.

  • Pre-inspections, repair offer preparation, specification overview and assistance
  • Service engineers and flying team (with seaman’s books) and own equipment
  • Dry-dock, afloat or enroute repairs
  • On-site and in-situ line boring, milling and flange facing
  • Torquing and tensioning
  • Alignments of all kinds
  • Detailed measurement and work reports
  • Project management, (docking) team leader(s), repair supervision
  • Detailed planning and repair procedure assistance and improvement ideas

Dredging specific:

  • Bottom door removal, overhaul and installation with own specialized equipment
  • Dredge pipe dismantling, overhaul, installation
  • Sliding piece/tracks, wear rings and suction bend repairs
  • Draghead repairs and/or modifications
  • Overflow and green valve removal, overhaul, installation
  • Dredge valves dismantling, overhaul and installation
  • Installation and/or reconditioning of wear resistant materials as hardox/creusabro

Besides the above we got a wide range of companies with who we closely cooperate to provide services for:

  • Sealing repairs/compression adjustment rubber on-site vulcanisation and repair
  • Hydraulic works and/or hydraulic overhaul of hydraulic parts
  • Spare parts of all kinds specific for dredgers and dredging equipment

For inquiries or more information: technical@all4dredging.nl