About Us


A Firm Built on Independence

Founded in 2015 by Jean-François Blais and Philippe Bouchard, Gestion Defcor is a firm specializing in commercial roofing inspection, expertise, and project supervision in Quebec. With over 18 years of field experience and a team of 16 professionals, we act as a trusted third party, without ever selling the work we evaluate.

One goal: protect your asset.


Our Vision

Over the course of our mandates, the same problem kept surfacing: undetected infiltrations, poorly executed work due to lack of supervision, and recommendations inflated by commercial interests. Gestion Defcor was founded to fill that void — an intervener whose sole mandate is to defend the client's interests.


In the roofing industry, it is common for inspection, recommendation, and execution of work to be carried out by the same company. Gestion Defcor was built on the opposite principle: no conflict of interest, no re-roofing to sell, no compromise on the neutrality of the opinion.


Our Values

Total Independence: No ties to contractors or manufacturers

Technical Rigour: Every report is documented, structured, and actionable

Prevention First: Intervening before the emergency, not in reaction to it

Transparency: Recommendations based on facts, not on sales

Defending the Client's Interests: Our only loyalty


Our Clients

We primarily serve:

  • Condominium associations and property managers
  • Architects and engineers
  • School boards, CIUSSS, and public institutions
  • Commercial building owners

Eighteen years on Quebec rooftops — let's talk about yours.