Fishburn Sheridan & Associates Ltd. was established in 2001 through a strategic merger of two existing firms, Fishburn Building Sciences Group (Eastern) Ltd. and E. A. Sheridan & Associates Ltd., and now boasts over 100 years of cumulative experience in building envelope engineering. The firm, which is headquartered in Ottawa, provides engineering services to a variety of established clients throughout Canada and U.S.A.

In today’s world the most appropriate decisions require a systematic approach that simultaneously considers the separate merits, costs and inter-related nature of the individual elements within the building. This is true regardless of scale, whether the issue is a condominium reserve fund or an international inventory of building properties.

Fishburn Sheridan & Associates Ltd. provides innovative, value-added engineering and consulting services to clients with a vested interest in their buildings. Our highly accredited team delivers a customized solution for every building envelope, and structural project we tackle because we understand that each project is different and every client is unique. It is our goal to be the most trusted and respected Canadian firm in our area of expertise.


Edward (Ted) Sheridan continues to manage the firm he co-founded with Doug Fishburn.  He has been joined by John Callender, and the two now provide over 60 years of combined experience, leadership and mentorship to the growing staff.

Ted Sheridan is a professional engineer and registered roof consultant with over 30 years of experience in roof, building envelope and structural engineering projects.  He has lectured internationally, published articles in national trade publications, and is currently Director for Eastern Canada of RCI, Inc., the institute of roofing, waterproofing and exterior wall consultants.  He has performed and managed over 2000 projects for a wide variety of clients.

John Callender is a veteran roof and building envelope consultant with over 30 years of experience, and an impeccable reputation for providing valuable, timely service to his many clients.

Corporate Ownership

FSA is fully employee-owned and has recently expanded its ownership structure to include several of our most important staff members, each of whom brings a wealth of experience and industry knowledge to the team.

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