Boat Builders


Telephone: 07990 035217 Email: info@ultramarineboatbuilders.co.uk

Welcome to Ultramarine Boat Builders

Ultramarine specialise in building established high quality GRP fishing boats and leisure crafts, finished to a very high standard utilising all modern materials and techniques. Based in Dorset by the south coast of England we pride ourselves in providing custom built boats for each individual requirement. We welcome customers’ personal input throughout this process, combining top quality workmanship with great value for money.

Our Services

Founded in 2010 since purchasing several unique proven and respected boat moulds which includes the Cygnus GM21, Grafter 21, Holton 24 Mk1 & Mk2, Cygnus Catcher 26 and the Swordfish 30. Together with new builds from these moulds our company also offers refits, GRP repairs, plug making and mould tooling.

The Team

Boat Maker

Our dedicated workforce has a combined experience of over 50 years in fishing & leisure boat construction. Their extensive knowledge has been enhanced through close family connections involved in commercial fishing and traditional boat building. This experience gives them the ability to engage with customers on a wide variety of their personal requirements and is invaluable in all aspects of outfits.

  • Boat

    A Cygnus 21 which we delivered to a customer in Falmouth fitted out to his own specifications. Powered with a Kubota 45 hp engine this classic work boat exceeded all of his expectations.

Our GRP stage 1 hull prices start from £10,500 and for a comprehensive price list or to discuss an order please telephone us on 07990 035217, or visit our Contact page for further details. Ultramarine Boat Builders offer an experienced high quality service, efficient delivery times and excellent value for money vessels, built and certified to Seafish approved standards.