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Plomberie CommercialeGCI · Grand Montréal
FR

Commercial plumbing — Greater Montreal

Commercial plumbing in Montreal

Our shop is in Saint-Léonard, in the middle of the island: downtown restaurants, multi-unit buildings from Rosemont to Ahuntsic, offices and institutions — we know Montreal plumbing because we work in it every day.

  • RBQ licence 5863-7745-01
  • CMMTQ member
  • 24/7 emergency

Plumbing for an island with some age

Montreal's commercial building stock has something Laval and the North Shore see far less of: age. Much of the downtown core and central neighbourhoods run on original cast-iron stacks, clay drains laid decades ago and mechanical rooms designed for another era. The result: roots in the lines, recurring backups, risers at end of life — problems you solve with aplanned project, not an endless string of service calls.

The other Montreal reality: the work almost always happens in anoccupied building. A Saint-Denis restaurant doesn't close for two weeks to redo its plumbing; a Plateau condo doesn't empty its units to replace a stack. Our approach — phasing, occupant notices, water back on every evening — comes straight from our general-contractor DNA.

What Montreal clients bring us

Downtown commercial kitchens — grease traps, dish-pit drains; multi-unit buildings and condos — risers, central water heaters, backwater valves; offices and institutions — washrooms, compliance, planned maintenance. And for backflow preventers, the city requires periodic testing on covered buildings: we keep the inventory, run the tests and file the reports.

Our services

Our services in Montreal

Projects & major replacements

Original cast-iron stacks, commercial space refits, code upgrades in older buildings: priced from drawings, phased around your operations.

Maintenance contracts

Multiple addresses on the island? Scheduled runs, uniform reports and one point of contact from downtown to Anjou.

Backflow preventer testing

Annual testing with reports filed to the city — and automatic reminders so a Montreal deadline never slips.

Drain cleaning & jetting

Clay and cast-iron lines invite roots and buildup. Camera diagnostics, hydro-jetting, and a fix at the source.

Grease traps

Hundreds of commercial kitchens on the island: compliant sizing, installation and scheduled pump-outs around service hours.

Commercial water heaters

Planned replacement before failure — with delivery and handling planned for Montreal basements and back-of-house spaces.

Frequently asked questions

Do you cover every borough of Montreal?

Yes — our shop is in Saint-Léonard, at the centre of the island: from Old Montreal to Rivière-des-Prairies and Lachine to Ahuntsic, most addresses are a short run away. It is our fastest response zone, for emergencies and planned visits alike.

Do you work in older or heritage buildings?

That is everyday Montreal plumbing: original cast-iron stacks, clay drains, solid masonry walls. We plan this work like a job site — protection, phasing, and trade coordination through our parent company GCI, a general contractor.

Can you handle the backflow testing the city requires?

Yes: we inventory your devices, test annually with qualified personnel, file the report with the municipality and remind you before every deadline. Exact requirements vary by the bylaw applicable to your building — we check them for your address.

A project or replacement to plan?

Request a detailed quote — assessment visit, clear pricing, phased schedule. No obligation.

Direct line (emergencies: 24/7)

514-700-7100

Request your quote

Fast response during business hours. Your information stays confidential.