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As one of Canada’s leading builders, Aecon is committed to driving positive environmental change.


As a Canadian leader in construction and infrastructure development, Aecon is committed to driving positive environmental change, including by supporting the transition to a net-zero carbon economy. As we deliver complex projects across Canada and internationally, we work to measure and mitigate the environmental impacts of our own equipment, facilities and processes.

Affordable and Clean Energy
Affordable and Clean Energy
Industry, Innovation and Infrastructure
Industry, Innovation and Infrastructure
Sustainable Cities and Communities
Sustainable Cities and Communities

We are focused on:

  • Implementing an enterprise-wide environmental management system
  • Making responsible and conservative use of resources, including energy, water and raw materials
  • Understanding and reducing potential contributions to climate change and assessing our climate change risks
  • Minimizing waste
  • Respecting biodiversity across terrestrial, aquatic, and marine habitats, especially in protected areas

In addition to the Sustainability Policy that articulates the five commitments listed above, our work to improve our environmental performance is also guided by an Environment, Social, and Governance (ESG) Framework and an Environmental Management System ( Environmental Policy ).

Climate Change

Aecon is committed to reducing its contributions to climate change through the measurement and reduction of our GHG emissions. We’re also committed to evaluating and disclosing information about the financial implications of climate change for our organization, using the Financial Stability Board’s Task Force on Climate-related Financial Disclosures. See Appendix A of our Sustainability Report for more information.


Managing our Greenhouse Gas (GHG) Emissions 

In 2019, Aecon became the first Canadian construction company to publish a comprehensive inventory of our GHG emissions. The inventory was prepared in accordance with the Greenhouse Gas Protocol. This data enables us to make better energy decisions, set targets, and identify promising areas for emissions reduction efforts. In April 2021, Aecon proudly announced that we set a target to reach net-zero (scopes 1, 2 & 3) by 2050, with an initial interim target to achieve a 30 per cent reduction in direct CO2 emissions (scopes 1 and 2) by 2030 as compared to 2020. Read more about our approach to managing our GHG emissions here.

2020 Greenhouse Gas Emissions Inventory -  Corporate Activities: 93%; Project Activities: 7%

Responsible Project Delivery


Aerial View of Site

Aecon helps our clients meet high sustainability standards by executing every project responsibly, not just following the rules but actively seeking ways to reduce waste, mitigate harm to local ecosystems and respond to community priorities and concerns. Making a meaningful commitment to the principles of sustainability not only aligns with our values, it reduces costs, builds public support for projects, and helps our clients achieve their own goals in areas such as waste and emissions reduction. Examples include:

Highway 401 Aggregate Recycling: Aecon is part of a joint venture engaged to design, build, and finance a major reconstruction and expansion of Highway 401. We’re using 300,000 tons of recycled aggregate (70% concrete, 30% asphalt) to realize the widening of this 18-kilometre stretch of highway. Recycling aggregate has numerous business and environmental benefits, reducing the costs, energy usage, and land use associated with the excavation and transportation of new material from new gravel pits and other processes. Achieving these efficiencies is standard practice for Aecon  we recycle 150,000 tons of aggregate annually at our Brampton Depot. For the 401 project, we’re collaborating in the development of an on-site program that we expect will support the recycling of about 1 million tons of material through 2022.

Gardiner Expressway Steel Recycling: Working to rehabilitate Toronto’s Gardiner Expressway, Aecon teams have taken advantage of numerous opportunities for the reuse and recycling of building materials. As we’ve prepared to replace portions of the expressway deck, we’ve cut away 407 panels of the existing deck and hauled them to a nearby recycling yard to be broken down. In all, we expect to enable the recycling of approximately 5,000 tonnes of steel into new components or mixes for other projects. We also anticipate that most of the 23,000 tonnes of concrete from the expressway will be cleaned, crushed, and reused.

Kitimat Meter Station Construction: Mitigating Ecological Impacts as the prime contractor on the Kitimat Meter Station, a facility that will help natural gas move safely through the Coastal GasLink pipeline, Aecon committed to working actively with all project partners to meet local commitments — environmental and social. We supported significant efforts to mitigate the environmental effects of construction. As one example, we relocated approximately 40,000 tadpoles to a location where they could mature safely. Our team also supported grassroots environmental initiatives locally, including volunteering to participate in a river clean-up.