Buoy rental

From short term buoy rental to fully managed supply, service and maintenance of your aids to navigation

Whether you need a rental buoy to mark an obstruction for a short or long-term period or upkeep of a varied mix of aids to navigation, we have a service to suit.

Rental service

Our fully outsourced service provides peace of mind with on and off-station maintenance of buoys, moorings, sinkers, lights, structures and beacons utilising the complete range of Trinity House mobile craftsmen, workshops, specialist equipment and vessels.

Quality assured

Our expertise ensures that key issues of safety, environmental protection and quality assurance are routine considerations at all times. Our management system is certificated to ISO9001 for Quality, ISO14001 for Environmental Management, ISO45001 for Health and Safety and the ISM code.

Contact us to discuss buoy rental options


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Type 2 buoys ready for deployment at our facility in Harwich.


Trinity House maintains around 500 buoys, as well as performing the important role of inspecting those maintained by port and harbour authorities, utility companies and by oil/gas rig and wind farm operators.

Equipment can be added to buoys to provide additional services such as the transmission of AIS, meteorological and hydrological data.

The buoy maintenance programme

Trinity house maintain and manage buoys as part of our statutory work as the General Lighthouse Authority. We utilise the same knowledge and expertise to provide services to customers through our buoy life cycle programme. Maintenance at sea and on-site is part of buoy rental service.

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Trinity House buoys are moored to the sea bed using a sinker constructed from cast iron with weights varying between 1 tonne and 8 tonnes.
The sinker is placed on the Assigned Position (AP). The weight of the sinker and the length of chain used to moor the buoy depend on several factors including the type of buoy, depth of water, strength of tide
and the exposure of the buoy.

Most Trinity House buoys have two mooring eyes to which shackles are attached to two pieces of chain forming a bridle. The bridle runs down to a swivel which allows the buoy to rotate and prevents the bridle from being twisted and dragging the buoy under the water. From the swivel, a length of chain (known as a riser) runs to a sinker on the sea bed.

Beacon management

Out sourced management of beacons for utility companies, harbour authorities and local councils

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