More Than Four Decades of Insulation Services!

More Than Four Decades of Insulation Services!

Get up to $300.00 off spray foam and cellulose. Execution of work on July 15, 2024 or before, this discount is exclusive to owners of residential buildings (5% discount up to $300.00 maximum).


Gilles Majeau launched Isolation Laurentides and introduced his entire family – including his youngest son, Martin – to the intricacies of insulation.


Jean-Marc, one of Gilles’ sons, started up Isolation Majeau et frère.


Martin Majeau acquired Isolation Majeau et frère with Stéphane Goulet, an accountant who had been active in the thermal insulation sector for eight years.


The two associates continued to expand their business with the acquisition of Isolation LM, a company which had established itself at the end of the 90s as a leader of the insulation sector in Quebec. This moved Isolation Majeau to the forefront of the industry in Québec.

Between 1990 and 2000, Martin Majeau took part in several high profile projects, such as the insulation of the Bell Center, the Caisse de Dépôt et placement building and the Westin Hotel in Montréal.


Isolation Majeau acquired Isolation Lafrenière and Isolation Promax, those companies were well established in Lanaudière for more than 25 years.


Isolation Majeau became a division of Gestion Groupe GNI, the largest insulation company in Canada.