Services

Offshore Hook-Up Services

Complete turnkey offshore hook-up for safe & efficient offshore mechanical completion.

MCCS provides full, bespoke offshore hook-up services for greenfield and brownfield projects across offshore platforms, storage and offloading units, and remote onshore facilities.

With over 30 years of global experience, MCCS delivers the personnel, engineering, logistics, equipment, and marine spreads required to bring newly installed oil and gas projects to a safe operational state.

Our offshore hook-up teams are trained to execute complex scopes under tight schedule constraints while maintaining strict adherence to international safety and quality standards.

A Multidisciplinary Skilled Workforce

Our workforce is certified to OGSP, BOSIE, HUET, CAW, IMIST, IRATA and other offshore requirements. We can deploy any number of skilled workers to the task, including:

  • Mechanical technicians
  • Structural fitters & welders
  • Pipe fitters & fabricators
  • Instrument technicians
  • Electrical technicians
  • Commissioning engineers
  • QA/QC inspectors
  • Rope access technicians
  • Rigging & lifting specialists
  • Supervisors, team leaders & offshore construction managers
Engineering & Workpack Development

We prepare all the engineering requirements and documentation required for hook-up:

  • Mechanical, electrical, and instrumentation hook-up
  • Structural tie-ins
  • Workpack preparation and task planning
  • Red-line markups and as-built update
  • Verification against P&IDs, GA drawings, and system boundaries
  • Material take-off and resource planning

This ensures a seamless transition from fabrication yards to offshore installation.

Hook-Up Construction

MCCS manages complete offshore hook-up execution to ensure systems are compliant with engineering design and commissioning requirements, including:

  • Structural connections and supports installation
  • Piping tie-ins and piping spool installation
  • Cable pulling, termination, and glanding
  • Junction box installation
  • Instrument hook-up and calibration
  • Utility packages/equipment installation
  • Bolt torquing and tensioning
  • Hydrotesting, pneumatic testing & leak testing
  • Valve installation, stroking & function testing
Tools, Equipment & Temporary Facilities

MCCS can supply a full suite of offshore hook-up tools and support equipment:

  • Mechanical and hydraulic bolting equipment
  • Pneumatic tools and torqueing tools
  • Welding machines & habitat enclosures
  • N2/He leak detection system
  • Load testing equipment
  • Temporary power generation
  • Portable office cabins, workshops & storage containers
  • Communication and IT systems

All of our equipment is calibrated, certified, and fully compliant with international safety standards.

HSE, Quality Assurance & Regulatory Compliance

We aim for zero recordable incidents on every project and maintain a safety-first culture through:

  • On-site HSE officers
  • Safety induction & toolbox briefings
  • Permit-to-Work compliance
  • LOTO implementation
  • Job Safety Analysis reports (JSA) and risk assessments
  • Incident reporting & management through proprietary Puma+ software
  • Full QA/QC inspection and documentation
  • Regulatory compliance with client and international standards
  • Essential pre-mobilisation and on-site training to familiarise workers with the workpack and hook-up procedures
  • Equipment handling and emergency response training
Planning, Scheduling & Project Management

We manage the entire hook-up process from start to mechanical completion to deliver it on time and within budget:

  • Mobilisation planning
  • Resource scheduling & logistics
  • Interface management with fabrication yard, installation contractor & client
  • Progress tracking and daily reporting
  • Risk assessment studies & mitigation measures
  • Cost control and change management
Integration with Pre-Commissioning & Commissioning

Once offshore hookup is complete, we can support you with a seamless transition to all subsequent phases, including:

  • Mechanical Completion
  • Pre-Commissioning checks
  • Assisting the commissioning team with function testing
  • Closing punch lists (A, B, C categories)
  • Ensuring system readiness for start-up

Choose MCCS to Hook-Up Your Oil and Gas Project

Countless oil and gas projects across the world rely on MCCS’ experienced teams to ensure the startup to smooth, safe, and profitable operations.

For project inquiries or onshore and offshore maintenance support, reach out to our team today.

Examples of international offshore commissioning services carried out by MCCS

MCCS has had the privilege of serving a diverse portfolio of international clients