Technical and Specalist Suppliers

Mainstay Marine Solutions

Mainstay Marine Solutions carries on a long legacy of boat building with a core management team who have been designing and building workboats for over 30 years in our deep-water facilities in Pembroke Dock, on the Milford Haven Waterway in South West Wales.

We are renowned for our quality workmanship and pride ourselves on our ability to manufacture quality Welsh products to international customers. We offer a fully-comprehensive service from concept design to through-life support.

So whether it’s new workboat build, refit, maintenance or repair, we understand that time and precision are critical. Responsive and exacting, we meet your critical deadlines and ensure your vessel or waterside infrastructure’s time in service is maximised, safely.


Charlotte Wood

Mainstay Marine Solutions

Tel: +44 (0)1646 681117



Quay dimensions

Control depths are subject to survey. Please contact us to check latest data.

 location Quay length (m) Max vessel length (m) Control depth (M)
Gate 1: Quay 1  180m 164m

Approach - 4.0m

Gate 1: Quay 2 100m 90m

Approach - 4.1m

Gate 1: Quay 3 65m  40m 1.8m
Gates 2 & 3: Ferry Terminal 190m 185m 7.7m

 *depends on berth box - clarify with the Pembroke Port team

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