Plomberie Hydro-Force inc.
Plumbers
Call · 514 582-1426L’Assomption has 15 plumbing companies; years licensed in L’Assomption: 20 or more 3, 10 to 19 2, under 10 10.

Plumbers
Call · 514 582-1426Renovation, construction and general workPlumbersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 585-9004Plumbers
Call · 514 645-4158PlumbersHeating, ventilation and air conditioning
Call · 514 707-4627Renovation, construction and general workPlumbersHeating, ventilation and air conditioning
Call · 514 657-2984Plumbers
Call · 514 358-7956PlumbersHeating, ventilation and air conditioning
Call · 450 932-7212Plumbers
Call · 514 707-4627Plumbers
Call · 450 588-6754PlumbersHeating, ventilation and air conditioning
Call · 450 589-1676PlumbersHeating, ventilation and air conditioning
Call · 514 929-4855Plumbers
Call · 514 947-8751Plumbers
Call · 514 793-1522Renovation, construction and general workElectriciansPlumbersHeating, ventilation and air conditioning
Call · 514 977-6100Plumbers
Call · 514 723-0324Ad · Featured placement · examplePreview only — this is not a contractor listing
L’Assomption, 15 plumbing companies — under 5 years (6), 5 to 9 years (4), 10 to 19 years (2), 20 years or more (3). Median in L’Assomption: 2020. Longest licensed in L’Assomption: Plomberie M.J. inc. (1984), Les constructions Bourgneuf inc. (1987) and Plomberie MSM inc. (1998). Newest: Plomberie CM inc. (September 2, 2026) and AGB plomberie inc. (September 2, 2026).
Other trades in L’Assomption: heating (7), renovation (3), stoves (1), electrical (1); single trade: 8 of 15. Subcategories in L’Assomption: forced air (5), natural gas (5), hydronic (5), oil (4), small buildings (3), any building (3). Bonds in L’Assomption: 4 at $40,000, 11 at $20,000; 15 CMMTQ licences. 5 have another name.
9,205 dwellings in L’Assomption, 32% built before 1981, less than our 45%. Periods in L’Assomption: before 1961 11%, 1961-1980 21%, 1981-2000 27%, after 2000 41%. 614 dwellings per plumber in L’Assomption (Montréal 2,668).
First licences in L’Assomption, by decade: 1980s (2), 1990s (1), 2010s (4), 2020s (8). 20 years or more: 20% of licences in L’Assomption, 24% in Montréal. L’Assomption: 1.6 plumbers per 1,000 dwellings; town average 0.8, highest L'Assomption (1.6), lowest Dollard-des-Ormeaux (0.2). Region of L’Assomption: Lanaudière, 218 plumbing companies in all.
L’Assomption rank: 11th of 26 towns, between Blainville (15) and Brossard (14). Close to L’Assomption: Repentigny (34), Mascouche (27) and Terrebonne (49).
One public construction tender is open in L’Assomption, according to SEAO and CanadaBuys as of November 3:
The tenders board · only the official notice counts.
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