The full scope of subsea work. One team.

From commercial diving and class surveys to cables, trenchless drilling, dredging and hull engineering — onshore and offshore, across the Gulf.

HDS diver carrying out in-water inspection and maintenance on a marine structure

Commercial diving — marine services

Specialised diving services for the international shipping industry and offshore energy sector.

  • In-water inspection & maintenance of all types of subsea equipment.
  • UWILD — underwater inspection in lieu of dry docking, to all IACS class standards.
  • Propeller polishing for VLCCs, bulk carriers and other vessels.
  • Pre-acceptance inspection of turn-key projects.
  • Offshore oilfield support services.
  • ROV inspection — underwater inspection using remotely operated vehicles.

Mobile offshore drilling unit services

Dedicated support for jack-up rigs and offshore platforms.

  • Underwater inspection in lieu of dry docking (UWILD).
  • IACS class inspection.
  • Seabed survey.
  • Spud can mud removal.
  • Zinc anode renewal.
  • Underwater non-destructive testing.
Jack-up mobile offshore drilling unit supported by HDS dive teams
HDS diver entering the water for subsea cable operations

Submarine & terrestrial cable operations

Complete cable installation capability — subsea and on land.

  • Shore-end cable installation and seabed trenching & dredging.
  • Subsea fibre-optic installation & testing, PLSE route connection.
  • Power cable installation & testing, fibre and power cable jointing.
  • Terrestrial fibre & power cable installation, manholes and ground beds.

Completed projects include: EWA Durrat–Hawar Islands 66kV interconnection and Hidd–Sitra 400kV installation (Bahrain); AAE-1 submarine fibre-optic segments (Saudi Arabia, UAE, Oman); TE SubCom GBI project (Bahrain); cable search & recovery (Djibouti).

Horizontal directional drilling

Advanced trenchless technology for installing services beneath bodies of water, busy urban areas, environmentally significant areas and shore approaches.

  • Crude oil & gas lines.
  • Fibre-optic, electrical & telecommunication cables.
  • Pressure sewer & water lines.
  • Shore approaches and environmental applications.
  • Full three-stage process — pilot drilling, reaming and pipe pulling.
HDS horizontal directional drilling rig with drill string
HDS super stream containerised subsea dredging system

Super stream dredging

A containerised subsea dredging system — available for the first time in the MENA region.

  • Onshore, offshore & deep-water projects — ideal for confined spaces and limited access.
  • Removes fine sediments, silt, sand, grit, cuttings, drill mud, shale stones and more.
  • 75+ tonnes per hour removal rate, with spoils pumped up to 200 m from the worksite.
  • Lightweight, road-transportable, self-contained and simple to operate.

Hydrographic survey

High-resolution survey of the seabed and coastal zone.

  • Topographic survey — high-resolution laser scanning, static and dynamic.
  • Bathymetric survey — multibeam echo sounder.
  • Morphological survey — side-scan sonar.
  • Stratigraphic survey — sub-bottom profiler.
  • Magnetometric survey.
  • Seabed sampling — grab, gravity core and vibro-core.
HDS diver at the surface during survey operations
Installation of articulated concrete block mattresses from a crane barge

Underwater civil works & concrete mattresses

Sub-sea construction and maintenance, including manufacture and installation of Articulated Concrete Block Mattresses (ACBM).

  • Jetty & dock construction and maintenance, site and concrete inspection.
  • ACBM protection — for anchorages, underwater pipelines and cables, and structure foundations against scouring.
  • Modular formwork — mattresses cast close to the deployment site, cutting transport costs, with bespoke sizes available.
  • Marine vessel salvaging.

Hull engineering & mechanical

A capable engineering team for everything from minor works to major projects — trained professionals with decades of field experience.

  • Steel fabrication and equipment servicing.
  • Jetty inspection and non-destructive testing.
  • Mechanical services — repairs, renewals and installations.
  • Manpower supply — welders, fabricators, fitters, supervisors and project managers.
  • Design, fabrication & testing of mooring buoys and navigational aids.

Recent projects: Khalifa Port spreader bar inspection & NDT; Khalifa Port 400 arch fender repair & installation; Bahrain Defence Force patrol boat engine cooling line renewal.

HDS divers working on a marine structure

Have a project that needs a subsea team?

Tell us your vessel, platform or site — we'll come back fast with a plan and a quote.

Request a quote

Call +973 1735 8812 · 24hr +973 3988 8676