Specialist Marine & Motorhome Electrics

Expert electrical solutions for boats and motorhomes


I provide specialist electrical services for boats and motorhomes across Southampton, the Solent, the New Forest and the South Coast.

As an independent specialist, I offer a personal, hands-on service, dealing directly with you from your initial enquiry through to completion of the work. Whether you need help with marine electronics, boat rewiring, motorhome solar installations or lithium battery upgrades, I bring over 33 years of experience and knowledge to get the job done properly. And because I operate a mobile service, there's no need to bring your boat or motorhome to me. I come to you.




Telephone: 07384 78 78 04      Email: Keith@keefmarine.co.uk

Marine Electrical & Electronics

Keeping you connected, powered and ready to go, on those sunny days across the solent and beyond.


Specialist marine electrical services for motorboats, sailing yachts and RIBs. From electrical fault finding and complete rewiring to modern navigation systems and battery upgrades, Keef Marine helps keep your onboard electrical systems working safely and reliably.


Services include:

  • Marine electrical installations and rewiring.
  • Navigation and electronics installations.
  • Garmin, Raymarine, Simrad, B&G and Lowrance equipment.
  • Lithium battery upgrades and charging systems.
  • Solar installations and hybrid charging.
  • Marine audio and onboard electrical upgrades.

Motorhome Electrical & Upgrades

More freedom. Better power. More time exploring.


Whether you're touring throughout the year or enjoying occasional escapes, a reliable electrical system makes all the difference. Keef Marine provides mobile motorhome electrical services, helping owners upgrade, maintain and get more from their onboard power systems.


From lithium battery conversions and solar installations to electrical fault finding and charging upgrades, Keith can help you make your motorhome more practical, efficient and self-sufficient. With particular experience working with classic Hymer motorhomes, Keef Marine understands the importance of getting the details right.


Services include:

  • Lithium leisure battery conversions.
  • Solar panel and MPPT installations.
  • Battery charging and power management.
  • Electrical fault finding and repairs.
  • Diesel heater installations.
  • Classic Hymer electrical upgrades.
Explore Motorhome Electrical Services

Why choose Keef Marine?

Over 33 years of experience

A lifetime in the marine industry and extensive understanding of boats, electrical systems and onboard equipment. Keith is also a qualified Navico installer, with specialist knowledge of marine electronics and onboard systems.

More than just electrical expertise

With a broad technical background and family roots in mechanics, Keith brings practical knowledge and problem-solving skills that go well beyond electrical installations.

Craftsmanship you can see

Every installation is carried out with care and attention to detail. From organised wiring to a clean, professional finish, quality matters.

Personal, reliable service

As an independent specialist, Keith offers a straightforward, personal approach, taking the time to understand your requirements and recommend the right solution.

Keef Marine provides decades of practical experience with marine electronics, boat electrics, motorhome electrical upgrades and off-grid power systems

Off-Grid Motorhome Power Systems


Enjoy the freedom of off-grid motorhome living without relying on campsite electric hook-ups.


You've bought the van, enjoyed a few camping trips, but now you're ready to venture further. You want the freedom to stay off-grid for longer, without worrying about running out of power.



Keef Marine provides bespoke motorhome electrical installations, battery upgrades and off-grid power solutions, giving you reliable onboard power for your essential appliances and equipment. With the right battery storage and charging systems, you can enjoy greater independence without relying on campsite electric hook-ups or constant sunshine.


Explore Motorhome Electrical Services

Testimonials

Keith responded to my request to carry out some work on my Grand Banks 42CL. It involved repairs to our 5KW Autoterm water boiler for the heating system. He was quick, tidy and fully tested the system on completion. The bill was reasonable and he was a pleasure to have aboard

Peter Smith

8 months ago

Keith Willsher had been recommended by a colleague to work on my Trader42 Strum at Beaulieu. He came promptly and diagnosed the problem quickly and did the repair. We have asked his help on several occasions and he has come up trumps. Highly recommended.

2 months ago

Keith did a fantastic job for me. He’s a great communicator, highly competent and very reasonably priced. I highly recommend him.

6 months ago

Keith has fixed the electrics on both my sailing boats and is always really responsive and does a great job at a competitive price.

2 months ago

Experienced with Leading Marine Electronics Brands

Keef marine has experience installing, upgrading and troubleshooting equipment from some of the industry's leading marine electronics manufacturers.

Garmin | Raymarine | B&G | Simrad | Lowrance | Navico | Fusion | Orca | Renogy | Victron | Onward | Vesper | Starlink | Pioneer | Glommed | Banten | ACR | McMurdo | Airmar | Actisence | Digital Yacht | Maretron | c-Zone | Simarine | Clarion | JL Audio | Mastervolt | Aquasignal | Osculati | NMEA | c-map | Navionics | Comar | Cortex | Dometic | Furuno | Flir | Mente | Bennett | Ocean LED | Narinco | Lumishore | Scanstrut | Sleipner | Sunpower | VDO | Wema | Yacht Devices | Tack Tick | Lewmar | Zipwake | Truma | Autoterm

Let's talk about your requirements.

Whatever you need help with, marine electronics or motorhome power systems, an installation, looking to upgrade your equipment or trying to get to the bottom of a technical problem, Keith is happy to help.


Get in touch

Using the contact form, share a few details about what you need and Keith will get back to you to discuss your requirements and how he can help.


Keith aims to respond to all enquiries within 24 hours, or by the end of the next working day.


As much of his work takes place onboard boats and inside motorhomes, phone signal isn't always guaranteed! If he's tucked away working on an installation or tracking down a fault, he may not be able to answer straight away, but he'll get back to you as soon as he's able.

Contact us

Prefer to talk?

Give Keith a call and have a chat about what you need.



Telephone: 07384 78 78 04

Marine Electrical Services Across Hampshire and Dorset

Based in Milford on Sea, Keef Marine provides professional marine electrical services, boat electronics installations, fault finding and motorhome electrical solutions across Hampshire, Dorset and the New Forest. Covering Lymington, Keyhaven, Christchurch, Beaulieu, Hythe, Itchen, Hamble, Warsash, Portsmouth, Gosport, Bournemouth, Poole, Sandbanks and Mudeford.