Our activities are concentrated in three main fields :

  • Underwater inspection and expertise
  • Marine construction
  • Maintenance

Inspection and expertise

One of the strength we developed over the years. We show a realistic portrait in any situation. Each of our intervention are digitally filmed and documented to give you a complete technical report with vectorial drawings, digital pictures and engineering expertise. The basic engineering is complete.

Our goal is threefold: integrity, quality and performance.

  • Integrity of information transmitted.
  • Quality and accuracy of data provided.
  • Performance of our staff in terms of intervention methodologies that we are continually developing.

Over the years, we developed new ways to modelise in 3 dimensions the underwater structures. The results are astounding and show you the reality with unprecedented clarity.

Example of underwater structures we inspect :

  • Bridges and culverts
  • Retaining wall
  • Water intake, outake and diffuser
  • Dam, levee and hydroelectric instalations
  • Probe and scientific instruments
  • Wharf and docks
  • And all submerged or partialy submerged structure
Inspection sous-marine
Travaux construction sous-marine barrage


For new construction or repairs, our intervention technique often permit us to do the work without using costly dewatering techniques.

  • Resurfacing of concrete
  • Repairs on steel and concrete piles
  • Pile lining over wood or concrete
  • Corrosion protection
  • Scouring protection
  • Localised defect repairs
  • Construction of new water intakes
  • Cofferdams if necessary
  • Underwater pipes

For welding or concrete, our experience and our qualified personnel make our distinction with companies and governments such as :

  • Hydro-Quebec
  • Ministère des Transports du Québec
  • Fisheries and Oceans Canada
  • Canadian National (CN) et Via Rail
  • Public Works and Governement services Canada
  • Many cities and municipal administrations
  • Many contractors and civil engineering firms
  • Many companies, factories and other hydro-electric operators


It is well known that good structure maintenance can avoid or postpone costly repairs. For preventive repairs or cleaning, it is profitable to keep your structure in good condition. In the case of hydroelectric dams and municipal water intake, the financial gains obtained can be major. Our qualified divers guaranties you a fast and efficient maintenance of your installations.

  • Water intake cleaning
  • Dams
  • Corrosion protection
  • Ship propellers and hull cleaning
Travaux sous-marins et entretien sous-marin