Olympique CMCT inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 274-3371Heating and cooling in Saint-Léonard (Montréal)
Saint-Léonard has 83 HVAC companies; years licensed in Saint-Léonard: 20 or more 31, 10 to 19 21, under 10 31.
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Ahuntsic-Cartierville 75Anjou 32Côte-des-Neiges 33Côte-Saint-Luc, Hampstead and Montréal-West 23Lachine 24LaSalle 59Le Plateau-Mont-Royal 24Le Sud-Ouest 41Mercier–Hochelaga-Maisonneuve 47Montréal-Nord 55Mount Royal (TMR) 22NDG (Notre-Dame-de-Grâce) 25Outremont 17Rivière-des-Prairies–Pointe-aux-Trembles 95Rosemont–La Petite-Patrie 52Saint-Laurent 114Saint-Léonard 83Verdun 12Ville-Marie (Downtown) 63Villeray–Saint-Michel–Parc-Extension 53West Island 144Westmount 19All of Montréal
Legrand inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps
Call · 514 865-67159299-4201 Québec inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 502-9515Développement Giro Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 514 808-81739014-4304 Québec inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 329-5456Déneigement Avco Inc.
Renovation, construction and general workHeating, ventilation and air conditioningSeptic systemsWells and water pumps
Call · 514 325-3266Beauchamp Babin et associés inc.
PlumbersHeating, ventilation and air conditioning
Call · 514 327-4182N-Styl Construction Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 514 323-1222Les Constructions B.O.M.E.R. Inc.
Renovation, construction and general workHeating, ventilation and air conditioning
Call · 514 325-7925Construction et Développement Arduini Corporation
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonrySeptic systemsWells and water pumps
Call · 514 253-44069170-7620 Québec inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 321-9988Les Constructions Valdi-Tech inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 514 324-9998Habitation Solano II Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 329-5456Construction Madux inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundations
Call · 514 326-04049275-7004 Québec inc.
PlumbersHeating, ventilation and air conditioning
Call · 514 371-5846A.G.S. Entrepreneur Général inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumpsAccessibility lifts
Call · 514 955-4455Construction Aldev inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundations
Call · 514 323-3491Groupe Edica inc.
Heating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumpsAccessibility lifts
Call · 514 255-1314Marconair inc.
Renovation, construction and general workPlumbersHeating, ventilation and air conditioningConcrete and foundations
Call · 514 728-5393Airtronic Climatisation inc.
Heating, ventilation and air conditioning
Call · 514 321-4144Gestion Après Sinistre M D inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 355-2905Entreprise G.I.G. Zambito inc.
Heating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 514 726-9261Perfection Plus inc.
Renovation, construction and general workElectriciansHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 514 994-0813Les Constructions Monarck inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 514 770-93332333-4717 Québec inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 315 569-7737Métier-Plus construction inc.
Renovation, construction and general workElectriciansHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 514 328-6212Construction Borrega inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 544-85349289-5283 Québec inc.
Renovation, construction and general workHeating, ventilation and air conditioningRoofersWood stoves and fireplaces
Call · 514 509-3418Mécanicair inc.
Renovation, construction and general workHeating, ventilation and air conditioning
Call · 514 323-6020Les Constructions Galco inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 349-8200Air spécialiste inc.
Heating, ventilation and air conditioning
Call · 514 507-9595Plomberie Europe inc.
Renovation, construction and general workPlumbersHeating, ventilation and air conditioning
Call · 514 725-9446Maurice Gagné et Associés inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 585-1417134814 Canada Ltée
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonry
Call · 514 725-9005Développement Légendaire inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 955-55794042077 Canada inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 450 663-3000Les Développements Trian Inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 254-6070Altapex Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 514 937-1700Les Systèmes Intérieurs Gagnon inc.
Renovation, construction and general workHeating, ventilation and air conditioningConcrete and foundations
Call · 514 955-5540Novatek électrique inc.
Renovation, construction and general workElectriciansHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 852-9300Saint-Léonard by the numbers
Saint-Léonard: years licensed, HVAC contractors
Saint-Léonard, 83 HVAC companies — under 5 years (17), 5 to 9 years (14), 10 to 19 years (21), 20 years or more (31). Median in Saint-Léonard: 2010. Longest licensed in Saint-Léonard: Les Systèmes Intérieurs Gagnon inc. (1984), Beauchamp Babin et associés inc. (1984) and Mécanicair inc. (1984). Newest: Groupe Placeco (October 27, 2026) and Dilatech inc. (February 2, 2026). Saint-Léonard, licences per year: 2022 (3), 2023 (3), 2024 (4), 2025 (5), 2026 (2).
Saint-Léonard: licences, HVAC contractors
Other trades in Saint-Léonard: renovation (69), stoves (63), foundations (25), septic (18); single trade: 7 of 83. Subcategories in Saint-Léonard: any building (67), home ventilation (66), small buildings (64), wood heating (63), piles (22), steel (21). Bonds in Saint-Léonard: 73 at $40,000, 10 at $20,000; 11 CMMTQ licences. 29 have another name.
Comparisons, Saint-Léonard
First licences in Saint-Léonard, by decade: 1980s (11), 1990s (14), 2000s (11), 2010s (22), 2020s (25). 20 years or more: 37% of licences in Saint-Léonard, 9th of 22 areas (island: 36%).
Neighbours of Saint-Léonard
Saint-Léonard covers Saint-Léonard. Saint-Léonard rank: 4th of 22 areas, between Rivière-des-Prairies–Pointe-aux-Trembles (95) and Ahuntsic-Cartierville (75). Saint-Léonard share: 7% of 1,112 HVAC contractors.
Permits issued, Saint-Léonard
Heating or cooling in Saint-Léonard: 2 of 488 permits, 0%. Heating or cooling: 0% in Saint-Léonard, 1% across Montréal. In all, Saint-Léonard: 488 permits, 372 of them alterations.
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.
Saint-Léonard: permits and rules
In Saint-Léonard, the borough’s permit counter receives applications, and several can be filed online: roofs, doors and windows, exterior stairs, exterior cladding, balconies and galleries. Changing the façade of a single-family house or a multiplex is subject to PIIA (site planning and architectural integration) review, except for replacing a window, a door or a balcony and its stairs, and in the COOP sector any change to the exterior appearance is subject to it. According to the City, lead water service lines are very unlikely in Saint-Léonard.
Official pages: Permit counter – Saint-Léonard (in French) ↗ · PIIA approval – Saint-Léonard borough (in French) ↗ · How to recognize a lead water service line – City of Montréal (in French) ↗