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Searching for a contractor or a licence number: consult the Licence holders' repertory.

COVID-19: Visit our COVID-19 [Fr] page to see the measures we have taken (examinations, licence maintenance, etc.). It is only available in French, but if you have any questions, please call us at 1-800-361-0761 and leave a message.

To know if your company can resume its activities, please consult the list of essential services and commercial activitiesThis link open an external website of the Régie du bâtiment du Québec in a new window.​​​​​​​ of the government of Québec. The RBQ cannot open or close construction sites.

According to our language policy​​​​​​​, only certain contents may be translated. Visit the French version to obtain all the information.

The RBQ and plumbing

In Québec, plumbing comes under the authority of the Régie du bâtiment du Québec (RBQ).

RBQ responsibilities with regard to this sector of activity are:

  • ensuring the quality of construction work in plumbing facilities
  • ensuring the safety of the public using the facilities
  • monitoring the facilities' compliance with construction and safety requirements.


Acting as mandatory of the government du Québec, the Corporation des maîtres mécaniciens en tuyauterie du Québec (CMMTQ) sees to the administration and implementation of the Building Act in connection with the professional qualifications of its members. As part of its mandate, the CMMTQ assumes specific responsibility for licensing contractors to do plumbing and heating work.

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