Keystone is more than a general contractor. We combine traditional construction management with the assurance of technical discipline and compliance. Every project is built on a foundation of planning, precision, and accountability — from the first budget to the final closeout.
Projects
Customers
Engineers
Partners
Feasibility studies, budgeting, and value engineering to set projects on the right path.
Full site supervision, subcontractor coordination, and cost management.
One integrated team handling both design and construction.
Oversight of schedule, procurement, QA/QC, and safety.
Structural building system expertise built into project delivery.
Closeout documentation, as-builts, manuals, and warranty support.
Choosing Keystone means partnering with a contractor that blends precision, accountability, and technical discipline into every stage of construction. We approach each project with detailed planning, transparent communication, and a safety-first mindset. From estimating to closeout, clients can trust that schedules, budgets, and compliance requirements are carefully managed with no shortcuts and no surprises.
Our strength lies in managing construction while supporting owners and stakeholders with proactive solutions. With expertise across structural and building systems, we anticipate challenges early and coordinate trades efficiently. Every project benefits from our QA/QC standards, milestone reporting, and warranty-backed assurance. At Keystone, we don’t just build—we create lasting partnerships, giving clients confidence from the first handshake to the final walkthrough.
At Keystone, we follow a disciplined process that keeps projects on track from start to finish. By aligning scope, budget, and schedule early, then coordinating trades with precision, we ensure every build is delivered with quality, compliance, and accountability. Our approach emphasizes proactive communication, clear milestones, and thorough oversight, giving clients full confidence that progress is transparent and outcomes meet expectations.
Our Process Includes:
MUNICIPAL SCHOOL RETROFIT
A municipal school retrofit focused on accessibility upgrades and energy efficiency improvements. Keystone coordinated with city officials to deliver barrier-free washrooms, new ramps, and efficient lighting systems, all completed within budget and aligned with Ontario Building Code requirements.
Key Features
OFFICE RENOVATION
Keystone recently completed a full office renovation, including layout reconfiguration, new partitions, flooring, ceilings, and lighting upgrades. The project was delivered on a tight schedule with minimal disruption to ongoing operations, ensuring a modern, functional, and compliant workspace for the client.
Key Features
INDUSTRIAL PLANT MODIFICATION
An industrial plant modification involving the installation of structural steel platforms and new utility connections. The project required precise coordination with plant operations to minimize downtime while upgrading essential infrastructure for future capacity growth.
Key Features
Keystone specializes in commercial, institutional, and industrial projects, including office renovations, school retrofits, system upgrades, and plant modifications. Our team tailors delivery to fit the unique requirements of each sector.
Every project begins with a site-specific safety plan. Daily inspections, QA/QC processes, and adherence to Ontario Building Code and CSA standards ensure compliance while minimizing risk for all stakeholders.
Keystone delivers full closeout documentation including as-builts, manuals, and warranties. Every project includes a one-year workmanship warranty, ensuring long-term confidence and peace of mind for our clients.
If you’re ready to move forward with a commercial, institutional, or industrial project, our team is here to help. Keystone offers a transparent process, from preconstruction planning to post-construction support. We provide feasibility studies, scheduling, and technical expertise up front, so you can make informed decisions with confidence. Our project managers and engineers work closely with clients, trades, and inspectors to ensure every build is delivered safely, on time, and on budget.
