Class Inspection


Internationally Approved

Caldive Limited is approved by the following major international classification societies (IACS) to conduct UWILD & IWS:

  • ABS - American Bureau of Shipping
  • BV - Bureau Veritas
  • DNV-GL - Det Norske Veritas-Germanischer Lloyd
  • Lloyds Register
  • RINA S.p.A.

Under Water Inspection In Lieu of Dry-docking (UWILD) and In Water Surveys (IWS) are conducted to ensure the structural and operational integrity of marine assets, including ships and mobile offshore drilling units (MODUs).

UWILD & IWS Services include:

  • In-water survey in lieu of dry docking
  • Sea valve/chest inspection
  • CSWIP 3.1U & 3.2U Inspection
  • Sales Survey
  • Magnetic Particle Inspection (MPI)
  • Eddy Current Inspection (ECI)
  • Plate thickness reading
  • Impact damage inspection
  • Hull potential survey
  • Underwater asset structural Inspection
  • Hydrographic survey
  • ROV Inspection

We can offer diving services either from quayside or from our dive support vessels.

Following inspection, we supply three copies of our report endorsed by the attending class surveyor and video footage on either DVD or USB stick.

Caldive Services



5 Nov 2014, 19:02
Led by Operations Manager and Supervisor, John Mullen, our 5 man team carried out a DNV-GL in-water class inspection on the PSV Blue Fighter vessel…
  • 10 Jan 2017, 18:54

    Caldive has successfully completed it’s very first ‘FPAL Verify’ assessment, in addition to…

  • 17 Nov 2015, 18:58

    In August, Caldive completed an intensive 35 day diving programme involving hull cleaning,…

  • 9 Sep 2016, 18:52

    Caldive used their vessel Woodstock I to replace the towing bridles on the Sedco 704 at it’s…

  • 5 Nov 2014, 19:02

    Led by Operations Manager and Supervisor, John Mullen, our 5 man team carried out a DNV-GL in-water…

  • 28 Nov 2016, 10:51

    'In my view, the involvement of Caldive in the Project was a major factor in contributing to the…

  • 29 Oct 2014, 09:53

    At the beginning of September, Caldive began work on the Songa Dee at Invergordon’s deep water…

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