Headquartered in Hawkesbury with offices in Ottawa and Mississauga, ASCO Construction serves municipal and commercial clients throughout Ontario. Since 1988, ASCO has grown into a leading contractor delivering complex Industrial, Commercial, Institutional (ICI) and water and wastewater infrastructure projects across the province.
We take on complex projects, work in challenging environments, and deliver infrastructure that communities rely on every day. Our clients choose ASCO because we communicate clearly, manage risk carefully, and stand behind the work we build.
Construction projects are complex and high stakes. Clients need more than a contractor — they need a trusted advisor and collaborative partner who takes ownership, prioritizes safety, solves problems, and protects their vision from start to finish.
We believe construction is more than building structures. It’s about building trust, long-term relationships, and infrastructure that serves communities for decades.
At ASCO, we provide construction services and solutions that bring sustained value to our clients and communities.
Our values guide how we work, how we treat people, and how we deliver projects.At ASCO, we don’t just build projects. We leave a T.R.A.C.E.
Through collaboration, trust, and social responsibility practices, we deliver sustainable, innovative solutions and standout construction experiences that keep clients coming back and drive growth for our people, partners, and communities. At ASCO, we build more than projects. We build lasting partnerships.
ASCO aims to be a leading single-source construction partner in every major Canadian city, building unique, complex, and challenging projects that drive higher value for our clients and our people.
ASCO Construction was founded in 1988 in Hawkesbury, Ontario, serving commercial, industrial, institutional, and residential clients in Eastern Ontario. Over the years, the company expanded its services, taking on larger and more complex ICI and infrastructure projects.
Today, ASCO is recognized for delivering complex construction projects, including water and wastewater treatment plants, institutional buildings, and civil infrastructure. We’ve opened offices in Ottawa, and the Greater Toronto Area, and continue to grow while staying true to the principles the company was built on: hard work, accountability, quality, and strong relationships.
ASCO’s leadership team has managed more than $4 billion in Industrial, Commercial, Institutional, and civil infrastructure projects combined. Our team includes experienced project managers, superintendents, engineers, coordinators, and skilled tradespeople who work together to deliver complex projects safely and efficiently.
Our strength comes from our people. Their experience, technical knowledge, and commitment to quality are what allow us to take on challenging projects and deliver consistent results.
ASCO believes we have a responsibility to the communities where we live and work. We are committed to making a positive impact through responsible construction practices, community involvement, and support for local organizations.
ASCO supports communities through:
We believe construction companies should help build stronger communities, not just buildings.
Whether you are planning a project, looking for a construction partner, or interested in joining our team. ASCO is always looking to build strong relationships with clients, partners, and employees.