DM Group Services is an industry leader in providing underwater and at-height inspection services to multiple industries. Given that many of our customers often need a combination of services, all three companies regularly work together; Dive Marine Services teams working below the hull, DM NDT inspectors and IRATA certified NDT rope access technicians at-height, with DM Sea Logistics providing transportation and boat access for everyone involved on the project.  This is a significant value-add to our customers who effectively have one multi-purpose team working efficiently and safely together.   

Inspection services carry a major responsibility which we take very seriously; the safety of our customers is of utmost importance and we are proud of our reputation in this regard and the trust we’ve earned in providing these expert services.

The full list of services we provide
  • UWILD class inspection
  • Underwater inspections
    • Still photography
    • CCTV/video recording
  • Vessel inspection
  • Pipeline inspection/installations
  • Seabed inspection
    • Hydrographic surveys
  • Tank inspection
  • ROV inspection
  • Class Hull integrity inspection
  • Baseline inspection
  • Conventional NDT
  • Advanced NDT
    • Auto ultrasonic testing
    • Magnetic flux leakage
    • Automated ultrasonic inspection video scope
    • Electromagnetic array systems
    • Computed radiography inspection
    • Advanced ultrasonic inspection
    • Long range guide wave UT inspection
    • Time of flight diffraction
    • Phased array ultrasonic
    • Corrosion mapping
    • Floor mapping
    • ABI scan
    • Borescope inspection
    • Tube inspection services
    • Remote field eddy current
    • Internal rotary inspection systems
Dive Marine Services – Underwater Ship Inspection, ROV and Survey Services

Our  inspection divers are adept in identifying and visually assessing for structural deterioration and damage,  and the overall condition of ships and other subsea structures such as terminals, jetties, piers, berths, modus and platforms.  Our methods include:

General underwater Visual Inspection: still colour photography remains a commonly used and relatively inexpensive method which produces a permanent, detailed record of an asset’s condition. This is carried out by a team of divers.  

Close Visual Inspection: this is a more detailed inspection of a component or specific section of a structure to ascertain if there are defects such as physical or corrosive damage, or weld cracking  This is conducted by a dive team and requires thorough SA standards cleaning.  

Underwater Closed Circuit Television and Videography: the use of CCTV and video have become an essential tool  in most underwater inspection operations and in-water surveys for dry dock extension. This approach gives us better overall information  and has the advantage of providing real time viewing during or after the inspection. “Live” communication and visuals between the client representatives and our divers can be maintained throughout the inspection.  This important two-way communication means the client and divers can work in sync to identify and collectively address any issues, and have a permanent record of the entire process. 

Remotely Operated Vehicle (ROV): ROVs are manned by ROV pilots which are highly maneuverable underwater robots that allow us to understand what is happening under your vessel with minimal diver intervention. ROV inspection allows ship owners to proactively manage maintenance, fuel efficiency and security to determine optimal cleaning and paint schedules.  

Without needing to deploy dive teams, ROV inspection leads to a safer process with unnecessary down-time or lifting the boat out of water.  It also becomes easy to access and inspect areas that might be too small for divers. 

Specialised Ship Inspection and Surveys: these includes hydraulic surveys, magnetometer surveys, side scan surveys and multibeam ultrasonic surveys.

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DM NDT Inspection Services

Non Destructive Testing (NDT) is a rigorous process referring to a series of analytical tools, techniques and standards used to inspect, measure and assess the safety of industrial assets across a wide range of sectors.   

DM NDT is a Non Destructive Testing inspection company offering inspection, repair and maintenance services to a broad range of customers, including oil and gas, petrochemical, renewables, shipping and public sector companies

By using both conventional and advanced NDT inspection standards, we can accurately evaluate the condition, properties and characteristics of critical materials or industrial components without causing damage to physical or operational assets.   We use both conventional and advanced NDT inspection methods such as VT, PT, MT, EMA, computed radiography inspection.   

With our spectrum of NDT technologies available, companies have the assurance that inspection analysis and reports will be as specific as possible to their requirements.  This in turn allows companies to properly manage the integrity and condition of assets, which is vital to the timely repair and maintenance of its structures and equipment.  Regular inspection means the early identification, maintenance and repair of any potential issues that might exist which helps reduce avoidable and costly replacement or extensive repairs at a later stage.

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DM NDT Inspectors

We have a team of fully qualified and deeply experienced IRATA certified NDT rope access inspectors and technicians who meet international certification standards.  This ensures your safety standards and compliance requirements will always be met. In order to provide this quality of service, all NDT inspection projects are undertaken and managed by an in-house NDT L3 Technical Managers.

We offer the following conventional and Advanced NDT inspection services:

  • Advanced NDT inspection
  • Conventional NDT inspection
  • Class inspection
  • API 510 Pressure Vessel inspection      
  • API 570 Piping inspection  
  • API 653 Storage tank inspection    
  • API A2 inspection   
  • Confined space entry inspection     
  • Crawler and drone inspections       
  • Critical gauge and PRV inspection and certification      
  • DROPS survey and accreditation  
  • Fluid management inspection
  • Heavy lifting and rigging works inspection
  • Hull and rig inspection to class standards    
  • LOLER/LEEA lifting gear inspection 
  • Magnetic Flux Leakage and guy wire inspection  
  • Marine and offshore crane statutory inspections (CCE/Cargo Inspection)
  • Mechanical engineering inspection   
  • Oil and gas terminal inspection
  • Pipe-work inspection
  • Rig structural inspection
  • IRATA certified NDT rope access inspection
  • Storage tank sprinkler inspection  

Our services