Active water or sewer backup
Shut off the water if you can do so safely, then call when waiting could lead to further property damage.
Call for emergency service →
514 312-1521
Montreal’s North Shore · 24/7 plumbing service
North Shore plumber: 24/7 emergency service
Active leak, clogged drain, sewer backup, frozen pipe or leaking water heater: tell us what you see, your city and the type of building. Plomberie Anjou serves houses, condominiums and buildings throughout the covered areas north of Montreal.
- 24/7 emergency service
- 16 cities served
- RBQ 5688-9025-01
- CMMTQ member
Slow drain or recurring problem
Tell us which fixtures are affected. The diagnosis determines whether cleaning, hydro jetting or a camera inspection is appropriate.
View camera inspection →Installation or renovation
Water heater, plumbing fixture, water service line or plumbing modification: send us the project details.
Plan the work →Areas served north of Montreal
Find a plumber in your North Shore city.
Select your city for local information and plumbing services available in your area. For an active problem, call directly and provide the address so coverage can be confirmed.
16cities included in this service area
Laval and Les Moulins
06Thérèse-De Blainville and nearby cities
06Other covered areas
04North Shore homes and buildings
The property, basement and season shape the diagnosis.
The same symptom can start at a fixture, inside a private pipe or farther along the service connection. The building type and the exact place where water appears help prepare the right intervention.
Freeze and thaw cycles
A pipe exposed to cold can lose flow, crack or burst. A sudden pressure drop following cold weather should be checked promptly.
Frozen and burst pipes →Basement and sump pit
Floor drains, backwater valves and sump pumps should remain accessible. Regular checks are part of protecting a basement from unwanted water.
Sump pump service →Private or municipal connection
During a sewer backup, the obstruction must be located before determining who should intervene and what work is required.
Sewer backup service →Buried plumbing line
For a water service or sewer line, its path, soil conditions and nearby underground infrastructure affect how the work is prepared.
Sewer line and excavation →A pipe or fitting is leaking
Visible water, a damp mark, running-water sound or pressure change.
Water is rising through a drain
Odour, gurgling, wastewater or several affected fixtures.
A sink, toilet or shower is blocked
Slow drainage, overflow or a clog limited to one fixture.
The same problem keeps returning
A camera can help locate a persistent obstruction or damaged pipe.
The water heater leaks or produces less hot water
Water on the floor, corrosion, unusual noise or reduced capacity.
A room needs new plumbing
Bathroom, kitchen, laundry room or new plumbing fixtures.
Verified local information
Check municipal guidance before certain plumbing work.
Responsibilities and requirements can vary by municipality, service connection and project scope. These official resources complement an on-site plumbing assessment.
Sewer backup guidance
The City explains how a problem on the private side differs from an obstruction that may involve the municipal sewer system.
Read the official guidanceConnection and sewer backup
This municipal diagram shows a combined service connection and the points where a backup may appear inside a building.
Open the municipal documentBasement protection checks
The City outlines checks for sump pumps, retention pits and backwater valves that help reduce the risk of water damage.
View the municipal checklistLocate before digging
A locate request checks for participating owners’ underground infrastructure before excavation work begins on a property.
Place a locate requestComplete plumbing service range
From an urgent problem to planned work.
Choose the service that matches your situation. If several options seem possible, describe the symptoms and we will direct the request appropriately.
01 · Act now
Emergency and repairs
02 · Restore drainage
Drains and diagnostics
03 · Supply and protect
Water and prevention
04 · Adapt the building
Installations and projects
Before the plumber arrives
Four details that help prepare the visit.
A clear description helps establish priority and determine the type of plumbing work that may be needed.
City and address
Confirm the service area and mention any building access or parking detail that may affect the visit.
Where it started
Explain where the water appears, where drainage slows or which fixture is no longer working normally.
Other affected fixtures
Check whether the problem affects one fixture, several rooms or another floor of the building.
Access to equipment
If possible, locate the main shutoff, water heater, sump pit, backwater valve or drain cleanout.
The licence number is displayed so the contractor can be verified.
Verify a licence with the RBQ ↗The company operates within Quebec’s professional plumbing framework.
View the CMMTQ directory ↗Call directly when waiting could increase damage to the property.
514 312-1521 →Customer reviews
Experiences published on the Plomberie Anjou profile.
Read reviews connected to the company’s public profile to better understand customers’ experiences with different plumbing calls.
Reviews from the public profileRBQ licence clearly displayedCMMTQ member
Frequently asked questions
Calling a plumber on the North Shore
Essential answers before an emergency, a repair or scheduled plumbing work.
514 312-1521Is 24/7 emergency plumbing available on the North Shore?
Yes. Emergency service is offered 24 hours a day, 7 days a week for major leaks, sewer backups, overflows and burst pipes. Call 514 312-1521 and provide your city so service coverage and availability can be confirmed.
Which North Shore cities do you serve?
The covered areas include Laval, Terrebonne, Mascouche, Repentigny, Bois-des-Filion, Lorraine, Rosemère, Sainte-Thérèse, Boisbriand, Blainville, Saint-Eustache, Mirabel, Sainte-Anne-des-Plaines, L’Assomption, Deux-Montagnes and Sainte-Marthe-sur-le-Lac.
What should I do when a pipe is frozen?
Shut off the water if you see a crack or leak, never use an open flame and call a plumber. Thawing must be controlled, and the pipe and fittings should be checked before the water is fully restored.
How can I tell whether a sewer backup is private or municipal?
The number of affected fixtures, where water rises and the location of the obstruction provide useful clues, but an inspection may still be required. The City of Terrebonne outlines the distinction between private and municipal sides in its official French sewer-backup resource.
Do a backwater valve and sump pump eliminate the need for maintenance?
No. These devices must remain accessible and be checked according to their configuration and manufacturer instructions. A protective device does not automatically correct a clogged or damaged pipe.
How much does a North Shore plumber cost?
The cost depends on the diagnosis, access, time required, parts, city and timing of the call. Describe the symptom and building so the request can be directed properly before the visit.
Do you work in houses, condos and commercial buildings?
Yes. We provide residential plumbing, renovation and commercial plumbing services. For a condominium or multi-unit building, mention whether a shared water shutoff or common access must be coordinated.
Is the plumbing work performed under an RBQ licence?
Yes. Plomberie Anjou operates under RBQ licence 5688-9025-01 and is a CMMTQ member.
A plumbing problem on the North Shore?
Call for an active problem or send the details of plumbing work you would like to schedule.