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Stainless Steel and Carbon Steel Pressure Vessel Testing and Repairs in South Wales, UK

At Vessco Engineering, we are your trusted partner for comprehensive stainless steel and carbon steel pressure vessel testing and repairs in South Wales. With a steadfast commitment to safety and quality, we specialise in ensuring the reliability and integrity of your pressure vessel. Our projects range from single replacements for established plants, to multiple vessel orders for entirely new sites, offering peace of mind to industries across the UK and overseas.

Our Expertise

The design and manufacture of pressure vessels is Vessco’s core business. We specialise in high-pressure fabrications and are capable of fabricating complex and intricate units using precision engineering techniques, right up to the largest pressure vessels transportable by road. Our projects range from single replacement pressure vessels for established plants, to multiple vessel orders (up to 50 units) for entirely new sites –in the UK and overseas.

With years of experience working with industries in the UK, we are proud of having built a strong reputation for accuracy, precision, and high-quality pressure vessel solutions that work for your industry, including:


  •  Pressure Vessel Testing: We understand that the performance and safety of your pressure vessels are paramount. Our testing services encompass a wide range of pressure vessel types, including stainless steel and carbon steel pressure vessels. Our meticulous testing processes are designed to identify and address many issues, ensuring your vessels meet the highest safety standards.
  • Pressure Vessel Repairs: When it comes to pressure vessel repairs, precision and expertise matter. We specialise in comprehensive repairs for reactor and deaerator vessels. Our team of skilled professionals is dedicated to restoring your vessels to optimal condition, adhering to stringent quality and safety protocols.


Our portfolio is a testament to our commitment to excellence. Recent projects in South Wales and across the UK include:

  • Jacketed vessels,
  • Limpet coil vessels,
  • Deaerator vessels for the nuclear power industry (we are currently working on several vessels for the new Hinkley Point Power Station). Filter/dryer vessels (which combine a filter vessel with a heat exchanger)
  • Lobster back vessels and
  • Non-standard vessels with complex internal structures.

All our vessels are engineered to the highest quality and often include a full range of safety and design features. Quality is guaranteed by the latest fabrication equipment, up-to-date engineer training and a strict inspection process.


Pressure Vessel Inspection Process

Our commitment to safety and quality is unwavering. Our inspection process includes:

  • Thick-walled chrome molybdenum units, 45 mm to 80 mm.
  • Defect-free welding – Our key performance indicators for weld defects show a proportional reduction every quarter since 2013.
  • 100% radiography and 100% UT inspection record as required.
  • Compatible with high-temperature and corrosive fluids.
  • Compatible with high-pressure environments up to 1000barg.
  • Suited to placement in extreme environments e.g. offshore oil rigs.
  • Complex internal structures, including schoepentoeters, reactor internals and separators.

Supplying thick walled units, including a 45mm thick chrome molybdenum exchanger for Sabic Petrochemicals and six off 336 barG 80mm/60mm thick units for Linde / Barton Firtop destined for a new installation in Abu Dhabi.


Contact Us

When it comes to stainless steel and carbon steel pressure vessel testing and repairs in South Wales, Vessco Engineering stands as a trusted name in the UK. Contact us today to discuss your specific needs and let us provide you with the highest level of service, precision, and safety. For unrivalled expertise and uncompromising quality in pressure vessel testing and repairs, get in touch with the team in South Wales today.