For advice call : 01248 671215

Marine Engineering Services

Marine Engineering Services

MES offer affordable boat servicing, boat repairs and marine maintenance for both leisure and commercial boats.

MES Boat Repairs


On-site and Off-Site boat repairs and boat servicing. Qualified and factory trained marine engineers with experience and knowledge so that we can fix and service your boat and give you the correct advice.

MES Boat Repairs


We supply both new and used spare boat parts for Beta Marine, Cummins, MAN and Mercury Diesel engines are stocked together with many other marine engine and boat parts. Wide range of used spares.

Boat Engine Parts


Looking for a new boat engine or generator, want a reconditioned one instead ….then MES can help with all boat engines and generators. Beta marine engines stocked. Regularly stocked second hand engines.



MES Ltd provide dedicated and affordable boat servicing, boat repairs and marine maintenance for both  leisure and commercial boats. We are MAIN agents for Beta Marine, Cummins, Cummins Onan, Man and Mercury.

Additionally we are authorised distributors for Fleetguard filters and Valvoline oils.

MES Ltd have the latest computer software for full boat engine diagnostics for the majority of marine boat engines.

We supply marine engine and boat parts to both leisure and commercial sector – new and used.

Expert diesel engineers for all types of commercial and plant – check out our sister site Dragon Diesel.


Our new workshop is located in the village of Port Dinorwic, Y-Felinheli. We are situated on the Menai Straits between Caernarfon and Bangor, North Wales. We have five service vehicles so that we can provide our customers with boat servicing and repairs in North Wales including Conwy, Caernarfon, Deganwy, Holyhead, Port Dinorwic marinas, and throughout the country. Contact us for boat repairs and servicing in North Wales.

Additionally we can also offer custom marine fabrication, providing welding services for stainless welding and aluminium welding.

Customer Comments

We respect your boat as much as you do ! Established 1997 and we care.

I have a Sealine S28 at Conwy Marina near Deganwy and unfortunately we had a recent issue with engine failing to start. MES came out to view the boat and within 2 hours had it up and running again which was a huge relief as I was expecting a huge boat repair bill. The weekend continued and we now have MES service the boat every year ensuring its in fine working order.

S Edwards

I ordered a breather hose on Monday from Dave at MES and it was received on Tuesday.

Absolutely brilliant service so they come highly recommend in my opinion. I called 12 places and M.E.S were the only ones who could help.

A Andreau

My yacht was taken out of the water for a routine painting so i arranged for MES to complete a full inspection and service prior to the work being done.

The quality of service received and communication throughout was second to none.

J Carrington