Multi-skilled Expertise

The sum of the MDL parts

Leveraging our extensive in-house capabilities and deep knowledge base, we support you in navigating the waters around operational safety, equipment reliability and asset life extension.

Crane maintenance and integrity

MDL’s in-house crane specialists are experienced in interrogating ageing or faulty equipment. They work with you to understand the root cause and develop an optimised remediation schedule to minimise any equipment downtime - ensuring continued safe operation and efficient life extension.

We start with “desktop” front-end planning to define the overall work scope and develop an optimised schedule for the delivery of components and offshore execution. Then we deploy experienced, multi-disciplined technicians to safely execute the maintenance or repair in line with OEM requirements and adhering to the asset's processes and procedures.

Our comprehensive crane support package includes:

Learn more about our recent crane maintenance projects.

Winch expertise

We consider ourselves winch experts: after all, we have been designing, delivering and overhauling these systems for over two decades, across various marine sectors and applications in harsh environments.

Our track record covers production and drilling platforms, FPSOs and a wide range of vessels, including deck winches, BOP, riser pull-in, tugger, anchor handling, hawser and offload winches as well as crane hoist winches.

MDL all-round winch care package covers:

  • Inspection and fault finding
  • Maintenance and repair
  • Equipment upgrade
  • Winch dismantling, procuring and re-assembly remotely or in-situ
  • Offshore installation and integration
  • Wire rope change-out under tension
  • Complete function / load testing
  • CompEx recertification
  • Provision of multi-disciplined technicians and operators
  • 5-year maintenance programmes

Browse our in-house winch designs or view some recent platform project case studies.

Mechanical handling

With a 20+ year track record in designing, delivering, operating and overhauling mechanical handling equipment, we have the experience and in-house expertise to address our clients' challenges and ensure we develop a safe and cost-effective method of execution.

Our multi-discipline engineering team will work with our clients to identify a targeted solution for the challenge at hand: from modifications and upgrades, to bespoke design - including feasibility studies, through detailed design, procurement, manufacture and integration testing.

Find some examples of our own-design mechanical handling systems under the Newbuild Equipment projects and other case studies.


Between building systems for our own flexlay fleet and that of our clients, we hone a solid track record in bespoke manufacture.

Our fabrication expertise covers:

  • Detailed engineering and design work
  • Initial material selection
  • Welding techniques
  • Assembly into larger systems with proper fit and function
  • Quality control and testing to ensure that each component meets specified standards and requirements
  • Documentation and compliance

Visit our Newbuild Equipment page for complete MDL-fabricated deliveries.


From our roots supporting the fishing industry, hydraulic systems have been core to our business. Our engineers and technicians are highly experienced in design, installation, maintenance and overhauls of hydraulic-driven units, control systems and single components.

We specialise in system reviews, design and development; hydraulic power unit maintenance; pipework, hoses and fittings maintenance; circuit flushing; motor and gearbox overhauls; and hydraulic and air control valve inspection and testing.

Our portfolio of equipment reinstated to safe and fully operational condition includes winches, subsea handling systems, cranes and pipelay equipment.

  • System consultancy
  • Component sales
  • Equipment refurbishment
  • Equipment design and manufacture
  • Equipment hire
  • Hot oil flushing and pressure testing
  • Field service
  • Troubleshooting
  • Small bore tubing and pipework installation

Visit our Newbuild Equipment page for complete MDL deliveries of complex hydraulic units.

Electrical and instrumentation

Among our peers MDL was an early adopter of an in-house electrical and instrumentation capability. Thanks to that forward-thinking investment, we have built a market-leading department that includes a group of highly experienced technicians to address both onshore and offshore electrical challenges.

Our team of qualified electrical and instrument technicians provide a complete overhaul, manufacture and commissioning service. Equipped with testing and measuring apparatus, supported by an established supply chain, they can carry out inspection, repairs and re-certification of third-party systems, in our workshops or on location.

From electrical panels, to 800-tonne reel drive systems: our electrical engineering capability, aided by two decades of mechanical handling expertise, allow us to deliver innovative systems to address our clients’ operational challenges.

This includes software engineering, allowing us to install, integrate and upgrade control systems aiming to improve operability and safety.

On offshore projects our electrical technicians provide expert support in all aspects of electrical and instrumentation projects, including hazardous area installations.

Field service personnel

Our field service team consists of specialist technicians who have expert knowledge of fabrication, machining, hydraulic, electrical or software engineering. This allows them to streamline any troubleshooting activities that you may need support with, offshore or on-site at your facilities but also via remote support.

Besides the extensive knowledge of One Team MDL, our personnel are also known for their great work ethic and excellent Health and Safety focus. The combination of all of these characteristics leads to exceptional client feedback, with the team consistently scoring "Outstanding."

Learn more about our Expert Personnel.

MDL Assured

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