David Sinclair - Principal

Principal, Commissioning

David is a Principal with 10 years of experience in the design and management of mechanical systems.  With a Bachelor of Engineering Science degree from the University of Western Ontario, David is adept at managing projects from concept to completion. His leadership skills and passion for the industry have also led him to the role of Guest Lecturer for an array of HVAC and Architecture courses at Western University and Ryerson University. David's experience includes projects in the institutional, educational, healthcare and pharmaceutical sectors, as well as commercial facilities and the arts.  Select clients with whom David has worked include the University of Toronto, Toronto District School Board, Oxford Properties Group, and the Remai Art Gallery of Saskatchewan.

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Commissioning Manager

John is a a Commissioning Manager with 7 years of experience dedicated to the quality-focused commissioning process. He has successfully delivered hundreds of diverse projects and developed numerous documents, including comprehensive owner's project requirements and detailed commissioning programs. John has worked as a Commissioning Manager on a variety of commercial, government and education projects. Select clients with whom John has worked include Oxford Properties, Bentall Kennedy, Rogers Communications, University of Toronto, Royal Bank of Canada, Infrastructure Ontario, and PWGSC & RCMP.

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Commissioning Engineer

Chris is a Commissioning Engineer with over 16 years of consulting experience and a passion for sustainable design. He takes an active role in each and every project, working closely with the design team to maximize passive design strategies and implement the most applicable energy efficient HVAC and water conserving plumbing systems. He successfully evaluates alternate systems in terms of energy performance, controllability, and occupant comfort.


Senior Commissioning Specialist

Rebecca is a Senior Commissioning Specialist dedicated to the development and refinement of commissioning processes. With over five years of experience as a Commissioning Agent, she has developed numerous commissioning documents including project-specific programs complete with custom check sheets for diverse project types. She has also acted as commissioning agent for several LEED Certified projects. Rebecca was involved with the commissioning team for projects such as the Forensics Services Coroner's Complex, Royal Bank of Canada York Mills Centre, and Scotia Plaza.

Helen O'Reilly

Commissioning Specialist

Helen is a commissioning specialist with 5 years of experience; a McGill University graduate with a Bachelors of Engineering, Helen received her P.Eng designation in 2017. Prior to joining the HRCx team, she focused on commercial commissioning and tenant design of building systems. She views engineering as a way to combine both her creativity and analytical sides. Helen’s approach to design and commission is to always provide the best value while putting herself in the owner’s shoes. Her experience includes commissioning chilled water systems, Enwave deep lake cooling connections and energy performance improvements in existing buildings.

Trisha miazga

Commissioning Specialist

Trisha is a Commissioning Specialist with nearly 10 years of experience in programming and OPR development, façade design and coordination, construction administration and observation, forensic investigation, and litigation assistance. With a background in structural engineering and resilience, Trisha assists the HRCx team in achieving client sustainability and resilience goals by developing risk-based building enclosure Owner's Project Requirements (OPR) and code-exceeding design criteria for high-performance building envelope systems. Prior to joining HIDI in January 2015, she held civil and structural engineering positions with firms in western New York and Washington, DC as well as a Construction Engineering research position with the University of Toronto.


Vishrut is a commissioning coordinator holding a bachelor degree in electrical engineering acquired at the Gujarat Technological University in Gujarat, India. Since then he has received an Advance Diploma in Energy System Engineering and Technology from Conestoga College in Cambridge, Ontario.  His knowledge and interests in conventional and renewable energy is an asset to the HRCx team. Vishrut’s approach to commissioning is to analyze the system from every aspect and to make sure that system is ready before being delivered to the end user.

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Commissioning Agent

Len is a Commissioning Agent with over 38 years of experience as a performance engineering consultant. His extensive experience includes commissioning, maintenance management, energy management, project management, inspections and training programs for mechanical building systems.

Gavin Strachan

Commissioning Technician

Gavin is a Field Services Manager and Commissioning Technician with over 34 years of experience. With an Inter-Provincial Certificate, Industrial Electrician License and Electrical Apprenticeship through the Joint Apprenticeship Council, he has also pursued professional development initiatives including an Electrician - Construction and Maintenance Certificate, Industrial Electrician Certificate, Electrical Construction Estimating Certificate and various Management Seminars. Gavin possesses construction management expertise in a variety of sectors, with project experience that includes the Ministry of Transportation Ontario Service Centres, Rogers and the 2015 Pan Am Games Athletes' Village. 

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Electrical Designer and Construction Administrator

Frank is an Electrical Designer with over 20 years of experience in engineering and construction.  He specializes in power distribution and lighting design, as well as contract administration and commissioning. Frank is adept at project management, fire alarm verification and site reviews. Prior to joining The HIDI Group 2011, he worked on a variety of projects including the TransCanada Pipelines Tower and Gas Bar, as well as bulk facility designs for various organizations.