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Subsea Trees & Wellhead Equipment

Legasea specialises in the refurbishment and supply of high-integrity Subsea Trees and Wellhead equipment for the offshore energy sector. Our focus is on providing sustainable, cost-effective alternatives to new build components—delivering certified, field-ready solutions while reducing environmental impact.

Refurbished Subsea Trees

Subsea trees (also known as Christmas trees) are a critical component in the production phase of subsea oil and gas wells. Legasea offers a wide range of refurbished subsea trees designed to suit diverse field requirements:

  • Vertical Subsea Trees
    Ideal for shallow to mid-water applications, these configurations simplify installation and maintenance while ensuring reliable flow control.

  • Horizontal Subsea Trees
    Commonly used in deepwater developments, horizontal trees allow easier access to the tubing hanger and tree cap, enabling intervention and workover operations.

  • HPHT Trees (High Pressure, High Temperature)
    Certified to withstand extreme subsea conditions, our HPHT trees meet stringent industry requirements for safety and durability.

  • Dual Bore Trees
    These are suited for complex field architectures, supporting parallel production or injection paths.

  • Tree Cap Assemblies & Valve Blocks
    Available as standalone spares or integrated into refurbished systems, all components are pressure-tested and certified before dispatch.

Each tree is thoroughly refurbished by our in-house specialists, including complete disassembly, inspection, reassembly with new seals and elastomers, and full functional testing to OEM or client-specific standards.

Subsea Wellhead Equipment

Subsea wellheads serve as the foundation for safe and efficient offshore drilling and production operations. Our capabilities include:

  • Conductor Housings
    Providing the initial structural support for the well, our refurbished conductor housings are inspected for fatigue and integrity before re-use.

  • Wellhead Housings & Casing Spools
    These pressure-containing components are reconditioned to ensure structural integrity and compatibility with modern tooling and BOPs.

  • Mandrel Hangers & Lockdown Mechanisms
    Refurbished to exact tolerances, ensuring secure casing suspension and reliable sealing.

  • Running Tools & Test Stumps
    Fully functional and compatible with industry-standard installation systems, supporting safe deployment and testing offshore.

 

Our subsea wellhead solutions are ready for use in exploration, development, or late-life extension projects. All units are traceable, pressure-tested, and supported with full documentation and certification.

 

Why Choose Legasea?

  • Circular Economy Approach
    Extending the life of subsea equipment while reducing waste and procurement lead times.

  • Reduced CAPEX
    Refurbished systems typically cost a fraction of new builds, helping operators remain competitive.

  • Fast Turnaround
    Our in-stock inventory and local refurbishment facility near Aberdeen ensure rapid delivery for urgent requirements.

  • Quality You Can Trust
    Every product is function-tested and certified, supported by a robust quality management system.

  • Our network of partners globally ensures that we can source subsea production equipment from surplus inventory. 

Contact US

Unit 11

Birchmoss Plant & Storage

Echt, Westhill, 

Aberdeenshire

Scotland

AB32 6XL

+44 1224 058 040

info@legasealtd.com

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© Copyright Legasea Ltd 2025 

All Rights Reserved.

Legasea Ltd is registered in Scotland, with company number SC617131.

VAT Registration Number: 320 7210 55 

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