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In order to prevent the overflow of wastewater following a violent storm, it is essential to install a backflow prevention valve. If the construction of your property is less than 40 years old, it’s probably already equipped with a valve. However, this is not necessarily the case for older constructions. 

The installation of a non-return valve, also called a backflow prevention valve, requires the expertise of a plumber who is a member of the CMMTQ. To avail of the services of a certified plumbing contractor, contact Plomberie Chauffage Normand.

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Professional Affiliations

Professional Affiliations

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Plomberie Chauffage Normand
8501-A, Rue Cordner,
Lasalle, Québec H8N 2X2



Licence RBQ: 1367-9279-85

Opening hours

Du lundi au vendredi de 7 h à 17 h

Fermés les samedis et les dimanches

Pour la clientèle établie :
Urgences 24 heures sur 24, 7 jours sur 7

Monday to Friday, 7:00 AM to 5:00 PM

Saturdays and Sundays, closed 

For established customers:

Emergencies 24 hours a day, 7 days a week

Service Area

Island of Montreal


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