Plomberie Costel 24 H. inc.
PlumbersHeating, ventilation and air conditioning
Call · 514 634-9686Plumbers in Lachine (Montréal)
Plumbing in Lachine (Montréal): 14 plumbing companies; 14 reachable by phone.
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Ahuntsic-Cartierville 22Anjou 17Côte-des-Neiges 12Côte-Saint-Luc, Hampstead and Montréal-West 11Lachine 14LaSalle 17Le Plateau-Mont-Royal 9Le Sud-Ouest 20Mercier–Hochelaga-Maisonneuve 16Montréal-Nord 16Mount Royal (TMR) 1NDG (Notre-Dame-de-Grâce) 7Outremont 4Rivière-des-Prairies–Pointe-aux-Trembles 51Rosemont–La Petite-Patrie 13Saint-Laurent 30Saint-Léonard 28Verdun 6Ville-Marie (Downtown) 11Villeray–Saint-Michel–Parc-Extension 13West Island 32Westmount 1All of Montréal
Baulne inc.
Renovation, construction and general workElectriciansPlumbersHeating, ventilation and air conditioning
Call · 514 422-0444A. Asselin & fils inc.
Plumbers
Call · 514 634-1848Atome inspection inc.
Renovation, construction and general workPlumbers
Call · 514 991-8060Beaconsfield plomberie inc.
Plumbers
Call · 514 688-3937Plomberie Pro solution inc.
Plumbers
Call · 514 573-6243Plomberie Andres inc.
Plumbers
Call · 514 716-9693Drainspection inc.
Renovation, construction and general workPlumbers
Call · 514 773-9896Plomberie PAQC inc.
Plumbers
Call · 514 891-8409OTEC mécanique du bâtiment inc.
Renovation, construction and general workPlumbersHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 514 238-2110Plomberie Éric Séguin inc.
Plumbers
Call · 438 393-2916Honeywell limitée
Renovation, construction and general workElectriciansPlumbersHeating, ventilation and air conditioning
Call · 514 422-3400Les entreprises J. Piccioni inc.
Renovation, construction and general workPlumbersHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumpsAccessibility lifts
Call · 514 481-9905Plomberie B.C.L. inc.
Plumbers
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Lachine by the numbers
Lachine: years licensed, plumbers
14 plumbing companies in Lachine: 20 years or more (5), under 5 years (4), 10 to 19 years (4), 5 to 9 years (1). Median in Lachine: 2014. Longest licensed in Lachine: Les entreprises J. Piccioni inc. (1984), A. Asselin & fils inc. (1988) and Plomberie Costel 24 H. inc. (1999). Newest: Plomberie PAQC inc. (July 7, 2025) and Beaconsfield plomberie inc. (April 15, 2024).
Lachine: licences, plumbers
7 of 14 in Lachine: plumbing only; other trades renovation (6), heating (5), electrical (2), stoves (2). Subcategories in Lachine: any building (5), natural gas (4), oil (4), hydronic (4), small buildings (4), steel (3). Bonds in Lachine: 6 at $40,000, 8 at $20,000; 13 CMMTQ licences. 4 have another name.
Comparisons, Lachine
First licences in Lachine, by decade: 1980s (2), 1990s (1), 2000s (3), 2010s (4), 2020s (4). 20 years or more: 36% of licences in Lachine, 4th of 22 areas (island: 24%).
Neighbours of Lachine
Lachine covers Lachine. With 14 plumbing companies, Lachine is 11th of 22 areas; Montréal-Nord (16) and Rosemont–La Petite-Patrie (13) on either side. Lachine share: 4% of 351 plumbers.
Lachine: permits, plumbing
Lachine: 31 permits of 526 mention plumbing. Breakdown: plumbing 2, bathrooms 15, sewer and water 14. 6% in Lachine, against 4% for Montréal. Lachine, all work: 526; alterations 330. Lachine comes 14th of 19, near Villeray–Saint-Michel (33), Le Sud-Ouest (29). Highest 6 (April 2026), lowest 1 (March 2026).
Source: Ville de Montréal, “Permis de construction, transformation et démolition”, open data, CC BY 4.0 · permits issued October 27, 2025 to October 26, 2026 · dataset updated October 29, 2026 · trades counted from the work descriptions.
Lachine: permits and rules
In Lachine, the permit counter offers appointments with the permit team through an online form, but that service cannot be used to file an application; interior and exterior renovation applications are filed online. In certain sectors, construction and exterior changes require PIIA (site planning and architectural integration) approval (in Old Lachine this also applies to a sign or a satellite dish), and throughout the borough, work on residential buildings of 4 or more units is subject to it.
Official pages: Permit counter – Lachine (in French) ↗ · PIIA approval – Lachine borough (in French) ↗