Marine Engineering.
Specialist fabrication, waterside infrastructure, marine structures and technically demanding projects that may not always be vessels, but are connected to water-based operations.
Recent marine engineering projects.
-
Specialist defence engineering support.
A trusted delivery partner in the production of integrated communications mast systems for the Royal Navy's Type 26 City Class Frigates, contributing to strategically important naval programmes across the UK, Australia and Norway.
-
Waterside infrastructure maintenance support.
We provide specialist berth, jetty, and marine infrastructure maintenance services for clients across the marine and energy sectors - delivering responsive, high-quality solutions that maximise asset reliability, safety, and operational uptime.
-
Marine energy fabrication.
From first-of-kind technology demonstrators to specialist marine structures and support vessels, we help innovators turn concepts into operational reality.
Specialist defence
engineering support.
Mainstay is a trusted delivery partner in the production of integrated communications mast systems for the Royal Navy's Type 26 City Class Frigates, contributing to strategically important naval programmes across the UK, Australia and Norway.
Combining world-class fabrication expertise with robust engineering capability, we deliver the complete fabrication, assembly and outfitting of complex mast structures and associated equipment. Our approach ensures the delivery of high-quality, mission-ready solutions that meet the exacting standards of modern naval platforms..
What our clients say.
"Mainstay Marine Solutions has supported STS Defence for nearly a decade on critical UK defence communications projects. Throughout this time, they have consistently delivered high-quality work, met project deadlines, and maintained exceptional professional standards.
The team is always responsive to client requirements, demonstrating the agility and flexibility needed to adapt to evolving project demands while keeping customer needs at the forefront of delivery.
As a result of this successful long-term partnership, and the confidence they have instilled through their continued professionalism and performance, STS Defence has entrusted Mainstay with the delivery of an overseas defence contract in Australia.
Mainstay's commitment to professionalism, reliability, and quality makes them a valued and trusted delivery partner."
Trevor Steele
Head of Projects, STS Defence
Waterside infrastructure maintenance support.
We provide specialist berth, jetty, and marine infrastructure maintenance services for clients across the marine and energy sectors, including Dragon LNG and Valero.
Our capabilities include jetty refurbishment, fender and capstan maintenance, timber structure repairs, dry dock and sluice gate maintenance, bridle and chain inspections, buoy fabrication and repair, loading arm installation support, and the manufacture and maintenance of walkways and pontoons.
We deliver responsive, high-quality solutions that maximise asset reliability, safety, and operational uptime.
Marine energy fabrication.
We deliver bespoke engineering, fabrication and prototype solutions for the offshore wind, wave and tidal sectors.
From first-of-kind technology demonstrators to specialist marine structures and support vessels, we help innovators turn concepts into operational reality
Working alongside developers, technology providers and research organisations, we're proud to support the growth of renewable energy through practical engineering expertise, agile project delivery and a commitment to innovation.
