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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
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We are proud to work with our clients on a resource that is as challenging as it is precious. We steer our expertise towards technology migration in a living environment, with no downtime, but this does not keep us from taking on a variety of other projects in the water sector.

  • Designing, manufacturing and installing handling procedures
  • Deploying automatization systems including PLC, SCADA and IHM
  • Replacing automatization and SCADA systems
  • Migrating technology
  • Adding, replacing and calibrating instruments
  • ...
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We have the knowledge and expertise required to take over construction projects as well as maintenance, control and upgrade of any petrochemical installation. Our processes adhere to the most up-to-date and stringent regulations, to make sure we always keep your employees—and ours—safe.

  • Polyethylene terephthalate production plan
  • Fuel farm tanks*
  • Metering stations
  • Refineries
  • ...

*MDI, trademark owned by Gastier

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Energy production

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Our world is constantly evolving, and so is the production and our energy needs. For years, we have developed in-depth expertise to enable the supply of fossil, hydroelectric and renewable energy to any of your facilities.

  • Wind farms
  • Biomass
  • Plants
  • Thermal power plants
  • Photovoltaic power plants
  • Biogas recovery power plants
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Oil and gas networks

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Our teams rely on knowledge and expertise gathered on numerous successfully completed projects in the oil and gas industry. They guide you through the design and improvement of your networks. They also master the skills related to the maintenance and dismantling of such facilities. Our team is particularly proud of its extensive expertise in this field.

  • Pipelines
  • Flow reversals
  • Compressor stations
  • Removal stations
  • Pumping stations
  • ...
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Our Trades

Our Services

Expertise Gastier Expertise Gastier Expertise Gastier

A leader of the Quebec construction industry for years, Gastier has retained its family values and heritage for over 50 years. Our workers and technicians are at the heart of our actions.

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Thanks to our many specialized and experienced workers, technicians and engineers, we have developed an integrated expertise in fields such as electricity, mechanics, automatization, instrumentation, plumbing, piping and boiler making, as well as insulation and steel structure manufacturing.

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Over the past 50 years, we have adapted to respond to new opportunities, thanks to our team’s agility and capacity to innovate. We also aim to create and maintain trustworthy relationships with our clients, to provide them the best solutions while ensuring flawless management.

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