DelpWAF_webGroupe Lefebvre’s teams have a high-level expertise and a solid reputation in concrete waterproofing on civil engineering infrastructures and buildings.

Our teams travel through North America to complete projects of various scopes. We stay current with technological innovations in order to remain fiercely competitive and to offer our clients a product of superior quality that suits their needs.

Specific services

Click on below services to learn more.


  • Molson Stadium

    In the Spring of 2010, University McGill and the Montreal Alouettes have enlarged the Molson Stadium. A new structure made of precast concrete allowed the addition of 5,000 seats and many private boxes.

  • George Washington Bridge

    Groupe Lefebvre and Venture Construction (American subsidiary), in conjunction with Bishop/Sanzari, have waterproofed the bottom level roadways of the bridge, as well as its access ramps on the New Jersey side.

  • Green roof (LEED Gold project)

    With a surface of over 30,000 square-feet, including an accessible 8,000 square-foot terrace, where Groupe Lefebvre built two ponds that, helped by plants, are tasked to filter the greywaters of the building.