P.N.S Concarneau

PIRIOU NAVAL SERVICES (PNS), which also has bases in Lorient and Brest, can handle the maintenance, repair and transformation of all sorts of vessels up to 110m, from small fishing boats to industrial trawlers, service vessels, public service vessels, naval vessels and large pleasure craft.

Our Resources


  • 1 mobile boat hoist of 400T
  • 1 x 2000T hydraulic elevator Three 110x18m cradles
  • Dry dock measuring 130x27m – ships up to 120×22 m
  • 300m fitting quay


4800m² of industrial facilities, including:

  • 1500m² of mechanical workshops
  • 1700m² of pipe-fitting workshops
  • 1600m² assembly facilities

Our Expertise

  • General maintenance: hull, machinery, deck and fittings
  • Preventive and corrective maintenance
  • Upgrades (modernization, refitting, jumboization, remotorization)
  • External interventions (supplying specialist teams for overseas missions on a short or medium-term basis)
  • Dockside work on electrical generators.

We cover every aspect of naval repair work, including project management and in-service support (ISS contracts):

Hull work (steel and aluminium sheet metal work) – pipes – carpentry and wooden frames – hull careening – painting – electricity – electronics – cooling systems – air conditioning – motorisation – laser alignment – diesel maintenance – hydraulics – general mechanics.

ISO 9001 Certification