Shut off the water if access is safe
Use the fixture shutoff or the interior main water valve only if you recognize it and can reach it safely.
Plumber for water leaks, service available 24/7
Water leak repair: address the source and limit the damage.
Running water, a ceiling stain, a damp wall or a damaged pipe? Plomberie Anjou handles water leak detection and repair in Anjou, Montréal, the North Shore and the South Shore. Tell us what you see so the visit can be prepared around the flow, access and type of building.
- Emergency service available 24/7
- RBQ 5688-9025-01
- CMMTQ member
- Residential and commercial
First steps that do not put you at risk.
Stay clear of electricity
If water is touching an outlet, appliance or electrical panel, do not enter the wet area to reach the power.
Limit the spread
Move exposed belongings and collect water only when the area is stable and you can do so without taking a risk.
Call and describe the flow
Provide the address, floor, visible location, affected rooms and whether water continues after a valve is closed.
Start with what you observe
A water stain does not always reveal where the leak began.
When the water appears, its colour and the fixtures being used provide useful clues. They help guide the inspection, but they do not replace an on-site assessment.
Water runs while every fixture is off
A pressurized supply pipe, valve or fitting may be involved. Isolate the area if possible and report any pressure loss or continuous running sound.
The stain appears with a shower, sink or toilet
The supply connection, fixture seal or drain may need to be checked. Note which fixture was in use when the moisture appeared.
See plumbing fixture servicesWater collects around the water heater
The tank, relief valve, drain valve or a nearby connection may be involved. An inspection helps determine whether repair or replacement is appropriate.
See electric water heater serviceA pipe leaks after freezing or thawing
A cracked section may begin leaking as the ice melts. Shut off the water if you can, and never apply a flame or intense heat to the pipe.
See frozen and burst pipe serviceImportant distinction: dirty water, a sewer odour or water rising through a drain points more toward a drainage issue or sewer backup than a supply-line leak. A camera inspection examines the inside of an accessible drain or sewer line; it does not reveal a drinking-water pipe hidden behind a wall.
From the first call to restoring service
A water leak repair guided by what can be verified.
A proper repair is not simply about covering the visible stain. The affected system must be identified, the failed component reached and the repair checked before the plumbing is returned to service.
Assess the urgency
Flow rate, electrical risk, the number of affected rooms or units, and whether the water can be shut off.
Check accessible points
Fixtures, valves, flexible connectors, fittings and visible pipe sections are inspected before additional access is recommended.
Narrow down the source
The way the leak behaves and the plumbing layout help reduce the search area without making an unsupported promise about its location.
Explain the required access
If an opening is needed, its location and purpose are explained before work beyond the immediate protective measure begins.
Repair the failed component
Depending on what is found, the repair may involve a valve, fitting, flexible connector or damaged section of pipe.
Check the operation
The repaired section is returned to service and checked according to the installation type and available access.
Define the scope clearly
Repairing the plumbing and restoring damaged materials are different jobs.
Understanding that distinction makes it easier to plan the next steps and provide accurate information to a manager, owner or insurer.
Stop the water loss and correct the accessible source
The plumbing scope concerns the leaking pipe, fixture or connection.
- Isolate the affected pipe or equipment
- Repair or replace the failed component
- Check the water restoration and operation
- Explain access limits or additional steps
Dry, clean and rebuild damaged finishes
Repairing a leak does not automatically remove moisture from drywall, insulation, flooring or cabinets.
- Water extraction and structural drying
- Assessment of damp or contaminated materials
- Ceiling, wall, floor or cabinet restoration
- Coverage decisions made by your insurer
Local considerations across Greater Montréal
Access to a hidden leak also depends on the building.
In Anjou and throughout Greater Montréal, valve locations, shared piping and access through another unit can change how a water leak repair must be prepared.
Locate the interior main water valve, the affected fixture and the visible path of the moisture.
Identify the affected floors and whether a shared shutoff could interrupt water to other occupants.
Notify the syndicate when a common pipe, neighbouring-unit access or a coordinated shutoff may be required.
Provide access hours, nearby equipment and the effect a water shutdown may have on operations.
Exterior valve and water service line
In Montréal, requests to shut off, turn on or locate the exterior water valve are handled through the borough. The City also explains the owner's responsibility for the private supply pipe up to that valve. Consult the official process when work requires an exterior shutoff.
Read the Ville de Montréal procedure ↗Prepare for the call
Six details that make the situation easier to understand.
You do not need to find the cause yourself. A factual description helps distinguish an active water leak from an intermittent issue and helps identify useful access points.
Address, floor and room
State where the water is visible and whether another unit is located above or below.
Current flow rate
Say whether the water is dripping, running continuously or stopped after a valve was closed.
When it appears
Note whether the moisture is constant or appears only while a specific fixture is being used.
Accessible valves
Explain whether you closed a local shutoff or the main water valve, and what changed afterward.
Building type
House, condo, plex, rental building or commercial property, including known access constraints.
Photos taken safely
If the area is stable, photograph the stain, the room and visible damage without taking the plumbing apart.
Do not open a wall at random or dismantle a pressurized connection. If water threatens an electrical installation or anyone's safety, move away from the area and seek the appropriate emergency assistance.
Official guidance
Reliable sources for safety and contractor checks.
These public resources complement the plumbing visit. They explain electrical precautions, moisture concerns and the checks to make before hiring a contractor.
Water near electrical equipment
Review the safety instructions before approaching a panel, outlet or appliance in a wet area.
Water damage and flooding safetyMoisture and mould after a leak
Learn why the source of moisture must be corrected and how to recognize conditions that require appropriate cleanup.
Addressing moisture and mouldCheck a contractor's licence
The public register can confirm the licence holder, number, and authorized categories and subcategories.
Check an RBQ licencePlumbing contractor qualifications
The Corporation explains the licensing framework and the qualifications required for plumbing contractor work in Québec.
Read the CMMTQ licensing informationCustomer experiences
Reviews connected to the public Plomberie Anjou profile.
Read experiences published by customers. Every leak, access point and repair remains specific to the building involved.
View the Google profile ↗Reviews linked to the public profileRBQ licence displayedCMMTQ member
Frequently asked questions
Before a water leak repair.
Practical answers for protecting the area, describing the problem and understanding the scope of the visit.
514 312-1521What should I do first when water is actively leaking?
If you can do so safely, close the fixture shutoff or the interior main water valve. Move vulnerable belongings and stay away from wet electrical equipment. Then call with the address, flow rate, affected room and any shutoff you already attempted.
Does a ceiling stain mean the leaking pipe is directly above it?
Not necessarily. Water can travel along a pipe, joist or surface before becoming visible. The upper floor, fixtures in use and timing of the stain help narrow down the area to inspect.
Can a hidden leak be found without opening the wall?
Sometimes the source can be identified through accessible fixtures, valves and pipes. A concealed leak may still require a targeted opening or additional checks. Any proposed access should be explained before work that requires it begins.
Can a drain camera find a water leak behind a wall?
No. A drain camera shows the inside of an accessible drain or sewer pipe. It cannot see a pressurized drinking-water line concealed behind a wall. It is useful when the symptoms point to a drainage problem.
Can the leak be repaired during the first visit?
That depends on the source, access, pipe material and required part. A visible leak at an accessible fitting may be more direct than an intermittent leak inside a wall, slab or shared pipe. The scope is confirmed after inspection.
Who should be notified in a condo or rental building?
Notify the syndicate, owner or building manager promptly when a common pipe, building-wide shutdown or access to another unit may be required. Mention every affected unit during the call.
Does the plumber repair the wall or ceiling after the leak?
The plumbing scope addresses the pipe, valve, fitting or fixture causing the leak. Drying, treating damp materials and rebuilding finishes may require other specialists. Your insurer determines the coverage that applies.
Where is water leak repair available?
Service is available in Anjou and in sectors of Montréal, the North Shore and the South Shore. Availability for a specific address is confirmed when the request is made.
Is the leak active? Tell us where the water appears.
Call for an urgent situation, or send details and photos of a stable leak through the form.