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The recent outbreak of Coronavirus in the UK is causing huge disruption to everyday life, currently as things stand, we are doing our bit to help prevent the spread of the disease. The workshops are currently open and are enacting strict social distancing measures in line with government guidelines. We are still quoting for work if there is something you need doing, so please get in touch and we can send you a price.

Kind Regards, the team at SM Composites


We are a composites workshop in south west London specialising in advanced materials and production methods. We offer bespoke design and manufacture services for teams looking for unique and simple solutions to difficult problems. Past projects are based in the marine industry but we are ready to take on challenges such as road bikes, cars or even aircraft.

Dinghy & Sports Boats Repairs

Dinghy racing is at the heart of what we do, as a group of avid sailors our involvement in composites within the sport has inspired our business. We don't just offer repairs though, our vast experience of racing and preparing dinghies means we're ready to get your racing boat into the best possible shape, we offer services for small dinghies all the way through to Sports boats. We are an authorised repair service for most major insurance companies.


Whether it’s on the land, on the water or in the heat of a race, accidents happen. From small scratches to otherwise terminal damage to your boat we’ll help get things in working order, and good as new in no time.

Refurbishments and Performance

Looking to breathe new life into an old boat? Over time UV, general exposure and poor maintenance can chalk up hulls, create leaks, destroy ropes and chip away at your foils. 

New Designs and Projects

We offer design and build services for any composite project you can think of, from commercial applications to industrial moulds, to new build dinghys and sports equipment.

Contact Us

SM Composites
Harts Boatyard
Portsmouth Road

Tel:   07980 547165

About our Company

Who are we?
Our Vision
Past Projects

07980 547165  | Harts Boatyard, Portsmouth Rd, Surbiton KT6 4HJ | |  Home