Tel: +44(0)1590 673312 E-Mail:

Contact Berthon

  • Our monthly E-News.
  • Occasional details of our upcoming events, products and services.
  • An email version of our annual Lifestyle Publication.

Cummins Onan

Marine generators

Cummins is one of the leading manufactures of power generation equipment. They have designed and built PowerCommandTM standby and prime power systems. The set design, manufacture and service have all been brought in house and the major components are built but Cummins – the engine, alternator and control systems. This allows each element to work in harmony together from the beginning. 

Berthon’s experience in all marine sectors is aplenty. Over 100 skilled technicians are employed including marine engineers, electricians and shipwrights at our shipyard on the south coast. Our shipyard is one of the few that is able to provide our clients with end-to-end services throughout the UK.

The marine engineers we employ carry out mechanical fit-outs, pipe fitting and plumbing. They also look after engine servicing and repairs as well as fabrication and welding on all boats in build, in refit or in repair. Our marine electricians are highly skilled and experienced, they have qualifications in 12/24V DC and 240V AC electrical systems. Work ranges from complete installations, re-wiring, modifications and repairs to boats electrical circuits, installation of electronic navigation and communication equipment.

Berthon can install generators across a wide variety of yachts, motorboats and workboats in the commercial, leisure and professional industry. We employ a large department of experienced project managers, with a dedicated team of engineers and electricians with extensive marine engineering and electrical backgrounds. We are able to supply and fit supplementary power systems and generators to cope with all power needs on board your vessel.

It is vital that you ensure your generator has been installed correctly, firstly; for your warranty and secondly; for the use of the machinery. A full commissioning and sea trial will be carried out in order to check it is in excellent working order.

Berthon has a long history with building, refitting and servicing commercial, MoD and professional vessels along with a multitude of leisure yachts and motorboats. Procedures during commissioning and sea trials have been refined over many years through working with the RNLI, MoD, Pilot Authorities, professional Captains and owners of leisure yachts.

Berthon offer an unrivalled level of skill and professionalism when servicing and fitting marine generators across a number of yachts and powerboats. We will ensure that your power system won’t let you down. 

Our highly trained engineers can diagnose and repair your marine generator quickly and efficiently to ensure its back up and running as it should as soon as possible. We use genuine manufacturer parts to ensure all-out reliability.

For more information please contact our yacht maintenance and refits team.

Berthon has a dedicated yacht and motorboat refit team that provide unmatched service to customers and can deal with your yacht service, maintenance, overhaul, full yacht refit and boat refurbishment requirements.

Read all about some of our yacht overhauls and refurbishments that Berthon have carried out in the past here.

Marine Electronics

Berthon provides sales, installation and service support for a full range of marine electronic products from all the top brands.

Layup & Commissioning

Our Lay Up & Commissioning programmes ensure that your yacht is kept in safe hibernation over Winter and made ready in Spring for another season aboard.

Aglaia Yacht Refit Project

The refit and restoration of AGLAIA, a 77ft blue water cruiser designed by Rob Humphreys