When it comes to specialist underwater, above-hull or at-height repair services, our team has earned a reputation as true experts in the field. We have in-house commercial divers and IRATA certified NDT rope access technicians who bring our customers their years of deep experience in repairing ships, structures and components that are crucial to safe and smooth operations. We are rigorous and efficient in the services we provide.
Ship repair services
The full list of services we provide
- Afloat repairs
- Propeller cold bending
- Aft seal renewal
- Bow thruster replacement
- Wet welding & cutting
- Underwater sealing of leakage
- Removal & installation of thruster units
- Vessel Repair
- Welding & fabrication (certified 6G/R welders & fabricators)
- Insulation repairs, cladding & fabric)
- Electrical installation & inspection testing – insulation, HIPOD, EX Compex
- Heavy lifting & rigging
- Remedial painting – mechanical surface preparation
- Storage tank sprinkler head cleaning/replacement
- Fire monitor repair
- Loading arm repairs
- Valve blinding/de blinding
- Structural upgrades, modifications & repairs (derricks, topside modules, tanks & platforms)
- Welding & fabrication (spool bracket installation, steel removal & replacement, pipe installation & removal – certified 6G coded welders & pipe fitters)
- Remedial mechanical surface preparation & painting (mechanical surface preparation with multi – coating application}
- Heavy lifting & rigging works (certified & approved riggers)
- Hydro-tight tensioning & bolt torqueing (certified & approved technicians)
- Electrical engineering (cable pulling & termination – installation & modifications of cable trays)
- Mechanical engineering
- Anode installation & removal
- Flare tip (removal – repair – replacement A-frame or helicopter operations)
Dive Marine Services – Repairs
Underwater Propeller Damage Repairs
We know that underwater propellers are easily damaged if they strike a buoy, floating logs, debris or ice. The damage is usually located at the tip of the blade, which can become bent or chipped, causing vibrations. The solution is to trim the blades equally to remove the damage and achieve a proper balance while at the same time reducing excessive cavitation. This technique requires extremely accurate measurements of the diameter of the individual blades to reduce to an absolute minimum the amount of material removed and to ensure the perfect propeller balance.
When trimming damaged blades, the nature and location of the damage determines the type of repair we carry out. Modifications are made depending on the desired RPM impact which restores the RPM/MCR ratio.
Underwater Welding, Cutting and Sealing
We utilize the very best tools and techniques available, such as Hydroweld and Broco electrodes for external or internal repairs. These are proven to produce the most constant temperature delivery for the best weld quality possible. We place a high emphasis on the competency of our underwater welders who are AWS D 3.6 Wet-Welding certified, and approved by DNV.
Underwater sealing of leakage holes are treated by using double bolted “sandwich” repairs to secure the 10mm leakage hole with epoxy application, thus ensuring the best results.
DM NDT – Repair services
- API 653 storage tank repair
- Confined space entry repair
- Electrical Installation repairs by COMPEX trained technicians
- Fire system repairs
- Flare tip repairs using A-frame an/or helicopter access operations
- Fluid Management repair
- Heavy lifting and rigging works repairs
- Hydro-tight tensioning & bolt torquing repairs by certified technicians
- Insulation repairs
- Loading arm repairs
- M Flange management, blinding and flange Anode repairs
- Mechanical engineering repairs
- Oil and gas terminal repairs
- Pipe-work repairs
- Remedial mechanical surface repairs
- Rig structural repairs
- IRATA certified NDT rope access repairs
- Spool bracket repairs and replacement – certified 6G welder
- technicians, certified Lokring RM and Swagelok pipe fitters
- Storage tank sprinkler head, line and nozzle repairs
- Structural upgrades, modification and repairs to derricks, topside modules, tanks and platforms
- Valve repairs
