Groupe Lessard is the leader in design, manufacturing and installation of intelligent building envelope systems, with a complete range of doors and windows, curtain walls and panels, for commercial, institutional, industrial and multi-dwelling buildings. Proven approach, unequalled results Since its founding, as a result of many innovative projects it has completed, Groupe Lessard has become the leader in the area of aluminum and glass architectural systems. Relying on the solid expertise of its team members and ongoing investments, we are consolidating our leadership by putting forward creative and innovative solutions. A vision, proven products and talents We are proud to be dedicated entrepreneurs whose the combination of ingenious products with the talents of more than 300 team members ensures proven results in building envelop systems.