Les Constructions Mario Maurais Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 589-9775Heating and cooling in L’Assomption
L’Assomption has 36 HVAC companies; years licensed in L’Assomption: 20 or more 12, 10 to 19 11, under 10 13.
Get quotes for heating, ventilation or air conditioning work in L’AssomptionFree, no obligation: describe your work once, licensed companies answer you.
Get my free quotes →9468-3430 Québec inc.
Heating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps
Call · 450 589-6226Construction Christian Kay Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 514 705-5529Les Entreprises Méthot inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 589-0832Les constructions Bourgneuf inc.
Renovation, construction and general workPlumbersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 585-9004Construction Concept-Pro inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 916-84943C Plex Habitations inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 474-3263Construction St-Maxim inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 594-2229Services Techniques DJC inc.
Heating, ventilation and air conditioning
Call · 450 654-6329Construction Normandin inc.
Renovation, construction and general workElectriciansHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 450 588-5799R.D.R. climatisation inc.
Heating, ventilation and air conditioning
Call · 450 713-0810V2 Construction inc.
Renovation, construction and general workHeating, ventilation and air conditioning
Call · 514 568-51932311-9670 Québec inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps
Call · 450 589-3268Constructions Christian & Jacques Inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 474-3263Les Constructions Fondex Inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps
Call · 514 617-2288Combustion Raytech inc.
PlumbersHeating, ventilation and air conditioning
Call · 514 707-4627Installation Martair inc.
Heating, ventilation and air conditioning
Call · 450 938-0767Construction Raytech (2014) inc.
Renovation, construction and general workPlumbersHeating, ventilation and air conditioning
Call · 514 657-2984Aluminium Foucher et fils inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 290-3064Climatisation KS (2010) inc.
Renovation, construction and general workHeating, ventilation and air conditioning
Call · 514 830-1039Tecair combustion inc.
PlumbersHeating, ventilation and air conditioning
Call · 450 932-7212Les Entreprises Simon Jolicoeur inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 269-9789Les Habitations Irlane Inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 585-9004Entreprises Ricbo Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 450 589-1212Constructions Pastel Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 589-7702Itabec Aluminium inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 948-0080Construction S.J.F. inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 606-5363Plomberie MSM inc.
PlumbersHeating, ventilation and air conditioning
Call · 450 589-1676Construction Chalifoux et Fils inc.
Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 589-0477Flamme d'eau inc.
PlumbersHeating, ventilation and air conditioning
Call · 514 929-48559377-4511 Québec inc.
Heating, ventilation and air conditioning
Call · 514 562-2703Les Entreprises Poicy Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundations
Call · 450 585-3872Gestion immobilière Champagne inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 585-9004Service énergie SR2 inc.
Renovation, construction and general workElectriciansPlumbersHeating, ventilation and air conditioning
Call · 514 977-6100Les Entreprises Franc-Nord inc.
Heating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 592-7687Stageline Scène Mobile inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
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L’Assomption by the numbers
L’Assomption: years licensed, HVAC contractors
L’Assomption, 36 HVAC companies — under 5 years (3), 5 to 9 years (10), 10 to 19 years (11), 20 years or more (12). Median in L’Assomption: 2013. Longest licensed in L’Assomption: 9468-3430 Québec inc. (1984), Les constructions Bourgneuf inc. (1987) and Constructions Pastel Inc. (1992). Newest: Gestion immobilière Champagne inc. (February 16, 2026) and Service énergie SR2 inc. (September 15, 2025).
L’Assomption: licences, HVAC contractors
Other trades in L’Assomption: renovation (26), stoves (24), plumbing (7), new homes (6); single trade: 4 of 36. Subcategories in L’Assomption: small buildings (26), any building (25), home ventilation (25), wood heating (24), framing (13), plumbing (7). Bonds in L’Assomption: 27 at $40,000, 9 at $20,000; 9 CMMTQ licences. 8 have another name.
L’Assomption: homes, 2021 Census
3,755 dwellings in L’Assomption date from after 2000, 41%, more than the 29% average. Periods in L’Assomption: before 1961 11%, 1961-1980 21%, 1981-2000 27%, after 2000 41%. 256 dwellings per HVAC company in L’Assomption (Montréal 903).
Comparisons, L’Assomption
First licences in L’Assomption, by decade: 1980s (2), 1990s (4), 2000s (9), 2010s (13), 2020s (8). 20 years or more: 33% of licences in L’Assomption, 36% in Montréal. L’Assomption: 3.9 HVAC contractors per 1,000 dwellings; town average 3, highest Mirabel (5.6), lowest Pointe-Claire (0.8). Region of L’Assomption: Lanaudière, 774 HVAC companies in all.
Neighbours of L’Assomption
L’Assomption rank: 14th of 26 towns, between Saint-Lazare (40) and Vaudreuil-Dorion (36). Close to L’Assomption: Repentigny (76), Mascouche (100) and Terrebonne (178).
Open tenders in L’Assomption
One public construction tender is open in L’Assomption, according to SEAO and CanadaBuys as of November 3:
- Aménagement des bureaux MTAA au 867, boulevard de l’Ange-Gardien, L’Assomption (Québec) J5W 1T3 — Société québécoise des infrastructures, closes November 6
The tenders board · only the official notice counts.
Renovation permits in L’Assomption
According to the City of L’Assomption, any project to build, enlarge, renovate or alter a building needs a building permit. Work on an existing building whose cost (labour and materials) is $3,000 or less before taxes does not need one, as long as it does not affect the foundations, the structure or the interior partitions, does not increase the floor area, does not affect any fire-protection element, and does not involve adding or closing off a window or replacing the exterior cladding. Some sectors and types of work are subject to a PIIA (architectural integration plan), authorized by city council after a recommendation from the planning advisory committee. You can apply for a permit online.
Official pages: Permits and certificates (in French) ↗ · Printable checklist before you sign