More than 45 years of experience to better serve you.
Our commitment to building owners and their representatives is a longstanding family story.
Our mission
Since 2010, the Firme d’Experts en Bâtiments Sinistrés (FEBS) has been dedicated to protecting the interests of building owners. Our mission is rooted in our family history, which began in 2001 when our founder, Gilles St-Yves, with 22 years of expertise in damaged buildings, identified a pressing need for building expertise services dedicated exclusively to owners and their representatives.
Today, our team, with diverse and current experience, provides expertise and counter-expertise services of the highest quality. Our core mission is to support our clients and provide them with the necessary tools to achieve the best result in difficult situations such as claims or construction disputes.

Our history
The Beginning
Gilles St-Yves obtains the title of Claims Adjuster limited to property evaluation, awarded by the Conseil des assurances de dommages and starts his career in the evaluation of building damage.
General Contractor
Gilles St-Yves starts a post-disaster restoration business that he operated for 10 years.
Return to estimate
Gilles St-Yves returns to focusing on building damage estimation and starts his own firm, primarily offering services to insurers.
Turning Point
Gilles St-Yves starts a building damage estimating business dedicated to owners’ representatives. Public Adjusters, Lawyers, Contractors.
Sébastien
Sébastien, Gilles’ son, joined the family business and began his career as a building damage estimator.
Finally
This is the creation of the Firme d’Experts en Bâtiments Sinistrés, which slowly succeeds its predecessor founded in 2001. This new entity expands its customer base by reaching out directly to building owners in addition to their representatives.
The return
Driven by a renewed determination to grow the family business, Sébastien St-Yves returns. He had left the company 6 years earlier to take on other challenges and diversify his experience.
The original team
The original team is made up of two couples from two generations. Line Duchaine, Gilles’ spouse who has always worked in tandem with him, taking care of the administrative tasks of the companies, and Marilou Tessier, Sébastien’s wife, complete the team.