Shops · offices · occupied premises
Commercial plumbing that keeps your operations in view
An unusable toilet, an overflowing sink or a pipe leak calls for a repair planned around your building and the way your business works.
Plomberie LaSalle handles commercial plumbing needs in Montréal, the West Island, Laval and served sectors of the North Shore and South Shore. Call with the address, the symptoms and your access constraints so we can confirm availability and prepare the scope of work.
Tell us what you need · 514 312-3198
01 · Identify the problem
02 · Coordinate access
03 · Check the return to service
Start with the actual situation
Need a commercial emergency plumber?
Tell us whether water is still flowing, whether several fixtures are affected and whether the problem prevents people from using the washrooms or a work area. An active pipe leak and a dripping faucet call for different preparation. Mention water reaching another unit, a ceiling or a shared area, even if the source is not yet clear.
Stop using the affected fixture. Close an accessible, clearly identified valve only when you can do so safely; do not force a stuck valve. If wastewater is backing up, avoid adding water to the drainage system and keep people away from the contaminated area. For a supply leak, see our water leak repair service as well.
Decisions that fit the premises
What your commercial plumber needs to check
We distinguish the visible symptom, the fixtures affected and the condition of the installation. This helps us choose a targeted repair, cleaning or further inspection instead of replacing parts without understanding the cause. Tell us what changed recently and which earlier repairs have already been attempted.
Sinks, toilets and faucets
A faucet that will not close properly, a wet connection or a toilet that keeps filling needs a check of the fixture and its accessible components. Share the model if you know it, its location and how often the problem occurs. A photo of the fixture and another of the connection can help prepare the visit, but cannot replace an on-site assessment.
The repair or replacement decision depends on condition, available parts and connection compatibility. A new fixture must suit its intended use and leave valves and maintenance points accessible. Clarify who supplies the equipment, and have dimensions checked before ordering a different model. A fixture that fits the counter may still require changes beneath it.
Slow drains and recurring blockages
One slow sink may point to a problem near that fixture; several fixtures draining poorly require consideration of a shared section. Note the affected fixtures, noises, odours and times when water rises. Mention chemicals or tools already used so the plumber can prepare with that information. Avoid repeatedly testing a drain that is already overflowing.
The approach to drain cleaning and unclogging depends on the problem and the available access. If an obstruction returns or a pipe condition needs examination, a drain camera inspection may be proposed. A camera does not automatically replace cleaning, and the accessible images do not show every pipe in the building.
Leaks, valves and pipe connections
Water beneath a cabinet may come from a connection, the fixture itself or a source higher up. Explain whether it appears during use or even when everything is turned off. We identify the checks that can be made, the access needed and the elements that must be isolated before work on the water supply begins.
A local valve may limit the extent of a shutoff, but its operation and the section it serves need confirmation. If stopping the water affects several units, authorized building representatives must coordinate the interruption. Do not assume a handle near your fixture serves only your business. Tell us if the valve location or function is uncertain.
Plan service continuity with clear responsibilities
Describe your opening hours, busy periods and essential water points. Separate what can be stopped briefly from what would require reorganizing activities. We discuss possible work sequences according to the installation. We cannot promise that the entire building will stay in service throughout every repair, or that work can always be completed in a single uninterrupted visit.
In leased premises, identify the person authorized to approve repairs and modifications. The owner, manager and tenant may have different responsibilities. Confirm notices to other occupants, access to mechanical rooms and the contact who can make a decision if an unexpected condition changes the accepted scope. Having that person available can prevent avoidable delays.
From the first call to the restart
Three steps to prepare the visit
STEP 01Describe the problem and establish authorization
We collect the address, symptoms, type of premises and operating constraints. Prepare the details of the on-site contact and the person who can approve spending or a change in scope. Photos, repair history and fixture references help organize the visit. Concealed conditions still need confirmation; information supplied by phone cannot establish the condition of every hidden pipe.
STEP 02Assess the installation and choose the action
On site, checks focus on the reported problem and the agreed accessible areas. We explain the proposed repair, required parts or work and any observed limits. If additional access, a deteriorated pipe or a separate intervention becomes necessary, the change needs explanation and authorization before work continues beyond the accepted scope. Keep the decision-maker reachable during this stage.
STEP 03Check operation and explain the follow-up
The return to service includes checks relevant to the components worked on and their intended operation. We explain useful observations and any next measures. The on-site representative should know which fixtures can be used and what remains to be addressed. This targeted check is not a complete inspection of every plumbing installation in the building.
Commercial plumbing maintenance based on actual problems
Maintenance is more useful when it starts with a concrete history: frequently blocked fixtures, damp connections, hard-to-reach valves and recurring interruptions. Group the information by area and fixture. A simple record of dates and symptoms helps distinguish a single incident from a problem that keeps returning despite previous work. Include changes in use that may affect the symptoms.
The frequency and scope of commercial plumbing maintenance depend on use and installation condition. A visit may involve examining accessible connections, discussing drainage problems and prioritizing repairs. A suitable schedule follows an assessment. One universal interval does not fit every business, and a maintenance visit does not guarantee that no future blockage or leak will occur.
Between visits, keep access points clear and report a new leak or unusual drainage promptly. Do not remove a component or device if you do not know its function. Retain equipment references and service notes to support future decisions. Make sure staff know who to notify when a symptom returns, rather than repeatedly trying temporary fixes without recording the problem.
Define project limits before work starts
Replacing a fixture and renovating the premises require different preparation. Moving a sink or adding a water point may change supply, drainage, venting and access needs. Share plans, technical specifications and intended use before walls are closed or cabinetry is manufactured. A decorative floor plan alone does not establish whether the proposed connection route is feasible.
For changes affecting service connections, consult Montréal’s plumbing and sewer procedures (French), then confirm the requirements for the actual address with the responsible authority. A general procedure does not mean every repair needs the same permit. The municipality and the nature of the work determine which steps need confirmation.
If your activity involves particular discharges or specialized equipment, describe them at the first discussion. Municipal requirements and the proposed scope need clarification before an intervention is offered. We confirm the plumbing work we can undertake and the needs that require other professionals according to the project. Do not assume specialized equipment is included in a general fixture-repair request.
Understand what affects the cost
Diagnosis, pipe access, required parts, fixture count and shutoff coordination influence the work. An accessible repair beneath a sink differs from a pipe hidden behind a finish that must be preserved. Multiple visits, part availability and scheduling restrictions also affect preparation. Describe those conditions early so the proposed work reflects the practical constraints of your premises.
Ask what the proposal includes: travel, planned labour, supplies, checks and possible follow-up. Clarify openings, finish repairs and the involvement of other trades. A price offered without knowing the conditions cannot replace a clear scope. Additional work discovered during the visit needs an explanation, including why it is needed and how it changes the agreed intervention.
What our customers say
Let’s discuss the plumbing in your premises
Contact Plomberie LaSalle about a repair, a drain problem or planned maintenance. Montréal, West Island, Laval and served North Shore and South Shore sectors: availability and service scope are confirmed for your address.
Explore our plumbing services or the Plomberie LaSalle home page to discuss another need.
9286-5419 Québec inc.
RBQ 5688-9025-01