The meter near the main water entry
The City says residential buildings have a meter near the main water entry. If the reading suggests unusually high use, check toilets and taps first, then have a possible leak assessed. Keep the meter accessible.
Need a plumber in Lorraine for a leaking shower, a backed-up drain or a pipe that will not stop dripping? For a plumbing emergency or a planned repair, tell us what is happening and where the affected fixture or shutoff is located.

With an active leak or sewage coming up through a drain, keep people away from the affected area and stop adding water if it is safe to do so. Call with your address, the fixtures involved and what the water is doing now.
If an accessible shutoff operates safely, isolate the fixture or pipe. Stay away from wet areas near electrical equipment.
Stop using connected fixtures. Tell us whether one shower is affected or several drains react, especially in the basement.
Mention this on the call. An exterior shutoff or work on the public network involves the municipality; the next step depends on the work required.
A dripping shower, a toilet that keeps refilling and a drain affecting several rooms call for different checks. The access point, cause and condition of the installation guide the repair.
At a connection, shower faucet, valve or supply pipe, find the source and assess what needs to be isolated before opening or replacing anything.
Identify which fixtures react, where cleaning access is available and whether a recurring blockage calls for inspection.
Check access to the backwater valve or sump pump and their condition according to the actual setup in the home.
Repair or replace a faucet, toilet or other plumbing fixture, or prepare an installation as part of a renovation.
Water leak repair in Lorraine: a photo of the affected spot and the access around it can help prepare the visit. A stain on a wall or ceiling does not always show where the leak began.
The City of Lorraine explains how to read household water use, when municipal network work needs coordination, and what to know about devices that help protect a basement. These details can make your request clearer before work begins.
The City says residential buildings have a meter near the main water entry. If the reading suggests unusually high use, check toilets and taps first, then have a possible leak assessed. Keep the meter accessible.
An ordinary indoor repair is different from connecting a property to municipal water or sewer service. For those connections, the City requires prior authorization, at least 48 hours’ notice and a municipal inspector on site. Define the scope before scheduling that work.
The City describes requirements for backwater valves and sump pumps to reduce backup and infiltration risks. Their location, access and condition need to be checked in each home before recommending work.
If neighbours also have low pressure or no water, check the City’s water network notices before assuming a fixture inside the house is the cause.
Sometimes the job starts at an accessible valve; sometimes a concealed pipe needs checking or a water shutoff needs coordination. We can explain the options after seeing the installation and confirming the point to address.
For planned work, tell us whether you are keeping the fixture, whether there is already an access opening and whether a shutoff would affect other occupants.
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These answers help you describe the problem. The exact work depends on what the installation shows on site.
No. If you can stop using the shower and safely close an accessible shutoff, do so. Photograph the stain and any existing access. The plumber can check what is visible before deciding whether an opening is needed.
Not by itself. A running toilet, dripping tap or other use can explain the change. Note the reading and the fixtures involved; an on-site check can guide the search. The City explains where to find and how to read a residential meter in its French-language guide linked above.
Avoid contact with wastewater and stop using connected fixtures. Tell us which drains or fixtures react and whether the backwater valve is accessible. The cause and affected section need to be established before choosing cleaning, inspection or repair.
Not automatically for an indoor repair. If water cannot be isolated inside or the project connects to municipal water or sewer service, City coordination may be required. Describe the access and scope before planning a shutoff.
Yes. A shower faucet, toilet, fixture or pipe replacement can be planned. Share the model if you know it, the available access and what no longer works properly.
Find a neighbouring city’s page or see our broader North Shore coverage for the address you need serviced.