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Discover our 7 Sectors

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A multisectoral expertise and an integrated approach

Every sector has activities and specificities that require a special expertise. Our experts have a keen knowledge of seven different industries and understand that each of those industries has its own complexities and realities. Our multidisciplinary expertise is based on the know-how of our employees, technicians and engineers, and allows us to provide a wide range of integrated services. We stay by your side during the entire lifecycle of your construction, remodeling or maintenance project, regardless of its scale or complexity. ...


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The manufacturing industry provides essential goods and services. Rapid resumption of service is therefore essential, when issues arise. Our teams are there to resolve your issues as fast as possible and provide you with the best available processes, for various manufacturing sectors.

  • Aeronautics
  • Agribusiness
  • Light industrial
  • Manufacturing
  • Pharmaceutical
  • Public transportation
  • Textile
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The mining industry requires unique expertise and exemplary health and safety measures. Gastier offers a wide range of high-quality services in eight specialties and knows how to meet your needs and respect every one of this niche industry’s requirements.

  • Concentrators
  • Conveyors
  • Filing systems
  • Leaching tanks
  • Processing tanks
  • Mining equipment
  • Ore bins
  • Production lines
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Institutional and commercial

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From the Palais des Congrès de Montréal to the McGill University Health Centre, including various projects apportioned by the City of Montréal, we have provided expertise in eight trades to unique turnkey projects with high added value. We are delighted to put our knowledge at the service of your ambitions.

  • Building expansion
  • Supplying and adding various types of equipment
  • Adding and modifying electrical and mechanical systems