Direct employees
Turnover (reported)
Regional Markets
Nuclear Contracting Tiers
Tier 3: Original Equipment Manufacturing Organisations
Tier 4: Sub-component Suppliers/Distributors
Tier 5: Processors & Fabricators


  • Achilles UVDB Verify Cat A
  • Achilles UVDB Verify Cat B
  • Achilles UVDB Verify Cat C
  • Achilles UVDB Verify Cat D
  • CE Marking / EN 1090
  • ISO 14001:2015
  • ISO 3834-2:2005
  • ISO 45001:2018
  • ISO 9001:2015


Pressure Vessels Heat exchangers & Tanks

Storage Tanks, Vessels, Piping, Steelwork, Fabrication & Installation Services.


Formed in 1998 by managing director, Bob Thomson, Rhyal Engineering has rapidly grown to become one of the UK’s leading site built storage tank and vessel contractors, dealing with the design and build of new tanks and the refurbishment of existing tanks. The majority of management, supervision and site personnel have extensive experience of this specialist business, which has been gained over many years within the tank contracting industry. This invaluable knowledge has been harnessed with a view to providing our clients with a professional management team, backed up by a highly skilled workforce who can complete projects on time, cost effectively and with only the highest standards of safety and quality.

The company serves the Nuclear, Petrochemical, Aviation, Power, Water and Bulk Storage industries and operates throughout the UK and overseas. Due to the continuously changing nature of the industry, Rhyal Engineering have endeavoured to build long term close relationships with all it’s clients and react effectively to the differing demands which are placed upon them. This has lead to many years of repeat business, based on mutual trust, clear and honest communication, and an ability to meet whatever demands are placed upon them. It has also lead the company to review and develop other ‘in house’ services, such as structural steelwork, piping manufacture and installation, which now serve to compliment and enhance the other services on offer.

The head office and main fabrication workshops are based in Milford Haven, near to the Pembrokeshire Oil Refineries and storage facilities, however we have a number of ‘satellite’ offices around the UK e.g. Southampton, Oxford, Yorkshire and Grangemouth. Wherever your problems are within the UK, you can rely on Rhyal Engineering to respond to your enquiries efficiently and effectively.

Products and Services

Product Sector
Tanks Oil & Gas including LNG
Fabrication Med-integrity Structures Nuclear Civil
Pressure Vessels Heat Exchangers & Tanks including Internals Petrochemical & Refining

*Engineering, design and detailed construction drawings for repairs or modifications.
*Raising the tank above grade on a specialist hydraulic jacking system.
*Refurbishment of the existing tank foundation.
*Installation of secondary containment.
*Removal and replacement of tank floors.
*Removal and replacement of tank shell plates.
*Installation of additional shell rings to increase capacity
*Removal and replacement of tank roofs.
*Dismantling, transfer to a new location and rebuilding of tanks.
*Transfer of complete tanks to a new location (dependant on size and distance).

Site Facilities

Shop Floor

1720m2 720m² Plate fabrication shop with 2 number 8 tonne overhead cranes 650m² Pipe and plate fabrication shop with 1 number 5 tonne overhead crane 350m² Stainless Steel fabrication shop 6000m² External secure lay down area 720m² Covered, secure stores area 300m² Garage and service area for vehicles, plant and equipment. 650m² Office, canteen and toilet facilities

Welding & Cladding

Capability Swing Length Width
Gas Tungsten Arc Welding (GTAW) Min: - - -
Max: - - -
Manual Metal Arc Welding (MMA) Min: - - -
Max: - - -
Metal Active Gas Welding (MAG) Min: - - -
Max: - - -
Submerged Arc Welding (SAW) Min: - - -
Max: - - -

Inspection / Testing

  • Non destructive testing - Magnetic Partical
  • Pressure / Hydro Testing


  • CAD Design - 2D
  • CAD Design - 3D

Recent Work

FAST Tanks Esso Fawley

Rhyal Engineering were tasked with building 2 new large diesel storage tanks at Exxon Mobil refinery Fawley.
The tanks are built using jacking methodology, fixed roof tank of 42.7m diameter X 16.5m high complete with radial staircases & handrails.
The tank are built out of carbon steel & were built to BS EN 14015 2004.