Built on craft. Driven by accountability.
Green Hills delivers integrated construction services — from structural concrete and forming to full-scope general contracting and multiple project delivery models — for the GTA's most demanding public, private and institutional builds.
What we believe
Every project is a promise to an owner, an end user and the community it serves. We honour that promise by keeping the work that drives schedule and quality under our own crews, maintaining transparent communication with every stakeholder, and standing behind every detail we put in place — long after substantial completion.
How we work
Lean project teams, direct lines of communication and long-tenured crews who have built together for years allow Green Hills to keep schedules tight and quality high. Our integrated preconstruction services — constructability analysis, value engineering, target-value design and risk-loaded estimating — converge on a single, executable plan that field operations can deliver with confidence.
Where we work
Headquartered in Whitby, Ontario, we deliver projects across the Greater Toronto Area, Eastern Ontario and into the North. Our logistics, supply chain and workforce mobilization capabilities allow us to extend the same standards of execution to remote and complex geographies that we apply in dense urban environments.
What sets us apart
Owner-aligned delivery, in-house structural concrete, schedule certainty backed by earned-value reporting, and a craft-first culture where superintendents and foremen own outcomes — not just tasks. That combination is rare in the GTA market, and it's why owners select Green Hills for the projects that matter most.

