Our Team

Andrew Duffy, CEO of the company, standing outdoors in front of a brick wall.

Andrew Duffy

Founder, President, B.Arch

Andrew holds an architecture degree from the University of Toronto and has been involved in the design and construction fields for over 25 years. Together with his architectural education, he has hands-on work experience in all trades. A year in Tuscany working with Broadhead Agnelli Architetti and a local group of masons continues to inform Andrew’s work. Since then, he has built on his experience and expertise in both design and construction as a result of increasingly complex challenges and opportunities.

Jamie Marples, GM, stands against a beige brick wall.

Jay Marples

Jay has been with Duffy & Associates since 2015, starting as a lead carpenter, and working his way up the ranks. He has produced some of our finest pieces of carpentry and with his deep knowledge of the construction industry, he has managed our largest projects.

Jay trained in the UK in traditional carpentry (joinery) producing millwork, windows and doors. He is an Advanced Carpentry graduate and has his certification in Construction Management. He also has a BA in Education.

General Manager, BA, HNC Construction Management
Joshua Richardson-Duffy, CFO, wearing a black jacket and white T-shirt, smiling.

Joshua Richardson-Duffy

Chief Financial Officer

Joshua graduated from Rotman Commerce with Distinction, specializing in Finance & Economics. He has been with Duffy & Associates for 10 years, working in virtually every aspect of the company's operations. He has become an indispensable member of the team overseeing our data management, information technologies, and reporting processes.

Construction workers and supervisors inspecting an excavation site surrounded by scaffolding and brick construction materials.

Bart Flegg

Senior Site Supervisor 

Bart Flegg joined Duffy & Associates after moving across Canada from British Columbia. His extensive knowledge in the construction of well-functioning, architecturally focused homes is consistently complemented by result-driven and detail-oriented leadership.

With an unwavering commitment to bringing projects from conception to polished finality, his facility developing and executing strategic sequencing remains aligned with client and stakeholder goals through all phases of the build. Collaborating with diverse teams has moulded Flegg’s professional workflow, as has his ability to anticipate complexities and energetically problem solve.

Sarah Tyl, Project Manager, standing in front of a beige brick wall.
Project Manager, B. Arch Science

Sarah graduated with a Bachelor’s degree in Architectural Science from Toronto Metropolitan University. She has a background in architectural design and experience working on projects ranging from high-rise condominiums to compact laneway suites across Toronto. Her work has spanned schematic design, building permit applications, construction documents, interior design, construction oversight, and contract administration.

At Duffy & Associates, Sarah works as a Construction Project Manager, managing renovation, new construction, and ongoing building service projects. She brings her architectural background and passion for design into construction, specializing in CAD modeling and complex fabrication. She works closely with clients, consultants, and trades to coordinate projects from design through completion.

Sarah Tyl

Samuel Richardson Duffy, smiling, wearing a black Carhartt jacket over a white t-shirt.

Samuel Richardson-Duffy

Junior Site Supervisor

Sam started working at the company at 15, during summers and school breaks. He later graduated from the Urban and Regional Planning program at Toronto Metropolitan University, where he began developing a more technical approach to his work on site.

Sam has worked his way up, gaining a broad range of experience in both hands-on construction and site management. Today, he works on site coordinating projects, bringing together practical and technical skills to keep work moving smoothly from start to finish.