Subsea Cable Maintenance & Repair


A-2-Sea maintains in excess of 80% of all the subsea optical telecommunication cable that lands in the UK, utilising its own qualified jointing products, comprehensive equipment and highly experienced jointers. A-2-Sea also maintains many of the UK’s inland subaqueous telecommunication cables, together with subsea optical telecoms cables in Europe and other international locations.

We offer an extensive 365/24/7 hotline and standby maintenance service in the UK which provides a rapid response to faults within the terminal station, beach landing, subsea cable and along the land route. By maintaining a hotline, customers are assured of a rapid response to repair mobilisation and on-site repair implementation. Time, costs and downtime are kept to a minimum. The services include jointing, warehousing of clients’ equipment, cabling operations and beach excavation and earthing systems. We cover:

  • Shallow water and river crossing cables.
  • Subsea optical system land routes.
  • At-sea cable jointing support.
  • Emergency reburial of exposed subsea optical cable shore ends.
  • Maintenance and repair of equipment, ducts, signage and navigational aids.

Our equipment includes:

Support vehicles on 24/7 standby, beach cable detecting, fibre splicing rigs, Optical Time Domain Reflectometers with mapping capture, earth and electrical testing with 500v capability, pressure testing equipment and power grounding equipment.


A-2-Sea has a secure depot for storage of customers’ equipment and spare cable, and provides periodic testing to ensure the cable conforms to system requirements.


A-2-Sea featured at numbers 13 and 21 in two recent prestigious Sunday Times Fast Track and Export Track awards. ... Read More

Project: Nautical Charting

A-2-Sea awarded 3 to 5 year contract with the Maritime & Coastguard Agency’s Civil Hydrography Programme. ... Read More


Hydrographic Surveyors • Senior Geophysicist • Survey Data Processor ... Read More

Get in touch

Contact the A-2-Sea team on 01794 830909 or