Retrofit
& Upgrade

Man amongst pipework

Clean Technology

Avantis are a global service provider and regulatory compliance expert for the retrofit of clean technology across multiple industries.

Through the use of advanced logistics and data driven decisions, Avantis provide a high quality international service as an integrator of clean technology, such as Exhaust Gas Cleaning Systems, Ballast Water Treatment Systems, Low Sulphur Technology & other “green” initiatives, making carbon compliance easy.

maritime Clean Technology

Exhaust Gas Cleaning Systems (EGCS)

Exhaust gas scrubbing technology has become an integral part of reducing emissions emitted by vessels globally.

Avantis, working in collaboration with manufacturing partners, has specialised in full turn-key retrofit solutions on all vessel types ranging from Bulk Carriers and LNG/LPG tankers to ferries and cruise ships. Our experience with different EGCS manufacturers gives us a versatile knowledge base with a variety of systems allowing prospective clients to choose what system suits their needs most. Our globally positioned team.

Exhaust Gas Cleaning System


Turnkey Equipment Retrofit Engineering Packages include:

  • Feasibility study and survey supported by 3D scanning onboard to understand constraints.
  • Quotation, planning and full scope of works.
  • Detailed project schedule.
  • Creation of preliminary P&IDs for the EGCS and associated plant equipment.
  • Creation of preliminary materials list.
  • Creation of electrical load schedule.
  • Procurement of all materials and equipment with delivery to site.
  • Mechanical and electrical installation in shipyard or at sea whilst the vessel is in service.
  • Projects executed by an experienced team of on-site managers and tradesmen.
  • Commissioning of the new system.
maritime Retrofit & Upgrade


Ballast Water Treatment Systems (BWTS) Specialists


The newly ratified IMO Ballast Water Management Convention has created a melting pot for ballast water treatment technology helping to prevent the spread of invasive species across the globe.

Ballast water management is now a key factor in the shipping industry and the deadline for compliance is near for most of the shipowners.

Avantis, working in collaboration with leading manufacturers, is an experienced turn-key retrofitter of BWTSs on all vessel types ranging from Bulk Carriers and LNG/LPG tankers to ferries and cruise ships.

Ballast Water Treatment System

Our engineering team has accumulated years of experience installing a wide variety of systems during both vessel docking and service allowing prospective clients to choose what system and installation schedule suits their needs most. Our globally positioned team can execute any BWTS project irrespective of geographical location with support from our corporate office in the UK or from any other of the other 6 main offices.

We can prefabricate in our workshops most of the piping for the WBTS in order to provide the best solution in terms of execution time for installation during navigation.

We have now experience with more than 20 different manufacturers of ballast water treatment and executed more than 50 BWTS installations.

We are confident we can support our clients in the yard, alongside and in navigation for any WBTS installation.


Broken down our BWTS turn-key engineering package includes:

  • Feasibility study and survey supported by 3D scanning onboard to understand parameters.
  • Quotation, planning and full scope of works.
  • Detailed project schedule.
  • Creation of preliminary P&IDs for the BWTS and associated plant equipment.
  • Creation of preliminary materials list.
  • Revision of the vessel’s ballast water management plan with all necessary new drawings.
  • Creation of electrical load schedule.
  • Procurement of all materials and equipment with delivery to site.
  • Mechanical and electrical installation in the shipyard and at sea whilst the vessel is in service.
Ballast Water Treatment System

Other Capabilities Include

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