Sr. Mechanical Quantity Surveyor

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Modern Niagara helps building owners, managers, and general contractors meet the mechanical, electrical, integrated building technology, and building services needs of their buildings across Vancouver, Calgary, Edmonton, Toronto, Southwestern Ontario, and Ottawa. We also develop custom, turnkey solutions to help reach the desired outcomes. We are committed to having a positive and meaningful impact on Canada’s infrastructure and on the communities where we live, learn, work, and heal.

WE BUILD FOR LIFE.

We value passion, initiative, determination, professionalism, and teamwork and we are committed to ensuring that our teams have everything they need to succeed. Health and safety are embedded in everything we do and, as a result, our award-winning safety culture has a record that’s well above industry standards.

At Modern Niagara, you will work alongside values-driven, safety-conscious, and high-impact teams in a fast-paced, innovative, and collaborative environment. Here, your knowledge, skills, and excellent service will help ensure that the buildings that make up Canada’s infrastructure fulfill the needs they were set out to meet.

Modern Niagara is one of Canada’s Best Managed Companies and is a recipient of SMACNA’s Safety Excellence Award Program (SSEAP) – Canada and the Canadian Occupational Safety (COS) Magazine’s Gold Winner for Canada’s Safest Employers Award in the Building and Construction category and Excellence Winner for Canada’s Best Health + Safety Culture Award as well as Canada’s Best Health + Safety Leader Award.

We are seeking a detail-oriented, highly skilled, and forward-thinking Mechanical Quantity Surveyor to act as the functional lead between traditional cost management practices, field execution and our evolving construction technology and data strategy. Working out of our Vaughan office, this role will combine deep technical and commercial understanding with field-based verification, data integrity, and process improvement.

The Mechanical Quantity Surveyor will challenge assumptions, refine practices, and drive a culture of accountability, transparency, and continuous improvement across our project teams. They will ensure reported progress aligns with actual work performed, optimize project cost control processes, and help reestablish best practices for verifying labour, productivity, and cost data integrity.

• Collaborate with site teams to define, track, and continuously improve labour productivity metrics (e.g., man-hours per unit installed)
• Establish, maintain, and refine modern productivity databases and dashboards to support accurate forecasting, earned value assessment, and performance reviews
• Educate and influence field teams on best practices for measuring, recording, and interpreting labour performance
• Maintain productivity databases and dashboards to support forecasting and performance reviews.
• Analyze actual vs. planned productivity to identify variances, provide meaningful insights, and recommend data-driven corrective actions

• Conduct regular site inspections to verify completed work against project schedules, drawings, and reported progress
• Confirm that labour assigned corresponds to work physically installed, ensuring reported completion reflects reality
• Quantify and certify WIP for progress claims, schedule reconciliation and invoicing purposes
• Ability to serve as an independent, internal verification function, providing confidence in the accuracy of progress reporting and financial claims
• Experience supporting the reeducation of the field and project teams on effective verification methods and the importance of accurate cost reporting

• Prepare and maintain detailed quantity take-offs for mechanical systems (HVAC, plumbing, piping, fire protection, etc.) from drawings and specifications
• Develop, maintain, and validate Bills of Quantities (BoQs) and…