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Isolation Majeau offers – under the same roof – complete residential insulation services for buildings that are under construction or being renovated.

Isolation Majeau is much more than a family affair: it's a team of over 40 people who are determined to help...

Learn more about Isolation Majeau et Frère


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.

Discover the evolution of our business

Vision, mission & values

We walked the talk, long before the ideas expressed below took shape. Even if we have not always worded them in the same way, these statements represent the “Majeau spirit” as we’ve felt it from day one.

Our vision
To be recognized as a leader of energy efficiency and the responsible use of environmentally friendly materials...

Learn more about our mission


We are very proud of our team, which includes:

  • Advisers
  • Seasoned technicians specializing in thermal insulation
  • Senior project managers
  • Appraisers
  • Several administrators

More details of our members


Over the years, Isolation Majeau has become an industry reference when it comes to developing certification standards with suppliers and governmental bodies..

Discover our certifications


Would you like to be part of a reliable team that focuses on service and growth and is active in the Lanaudière region and the Greater Montréal area?

Join our dynamic and talented team