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Municipal By-Laws

Connection to waterworks and sewer system

Waterworks pipes

Anyone who wants to establish a connection with the waterworks or sewer system or to repair, replace or move such a connection requires a permit and must comply with the municipal by-law.

Permit application

Applicable standards

  • Property owners must maintain, at their own expense, all connection equipment on their property to the point of the municipal connection and keep it in good working order.
  • Owners are responsible for damage caused due to inadequate maintenance, the presence of tree or shrub roots or non-compliance with the by-law.
  • Building owners must install a device to reduce the risk of the malfunction of a water supply system and one to reduce the risk of a sewer system (safety valve, etc.).
  • When the sewer backs up into a building, the city only takes action when a plumber or contractor determines that the problem is in the municipal portion, that is, on the part of the land that belongs to the city. It is the owner’s responsibility to repair the private portion.
  • Specific rules apply to materials used, location, slopes, inspection, etc. Please see the applicable by-law for further information.

Answers to your questions

  • All construction, connections and service entries on private property are at the owner’s expense.

  • The cost must be paid by the person who owns the property that needs to be connected, based on the same regulations in effect for the construction of private waterworks and sewer service entries, connection with the public water mains and maintenance.

Do you need further details? Contact us!

  • By sending an email to :

  • By calling :

    450 698-3000

    From Monday to Thursday, 8:30 a.m. to noon and 1:15 p.m. to 5:00 p.m.
    Friday, 8:30 a.m. to noon

  • You can come to the reception desk at City Hall located at 5 Boulevard D’Youville .

    From Monday to Thursday, 8:30 a.m. to noon and 1:15 p.m. to 5:00 p.m.
    Friday, 8:30 a.m. to noon




The texts and administrative codifications presented on this site do not replace the official by-laws of Ville de Châteauguay. They have no official weight. Although we make every effort to ensure that all the information is accurate and complete, we cannot guarantee its integrity, or that the information is current or accurate. In case of a discrepancy between the official text and the information published on this site, the official text always takes precedence. Ville de Châteauguay cannot be held responsible for errors or omissions of any nature on the site.

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