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Septic systems in L’Assomption

17 companies holding subcategory 2.4 (on-site wastewater systems) have an address in L’Assomption. The oldest of these licences dates from 1984.

Excavation on a wooded lot
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Active licences in RBQ data dated November 3, 2026 · official register ↗ · list order

9468-3430 Québec inc.

✓ RBQ licence 1371-7699-15 · L'Assomption · Licensed since 1984

Heating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps

Call · 450 589-6226

Construction Christian Kay Inc.

✓ RBQ licence 8345-4777-34 · L'Assomption · Licensed since 2013

Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps

Call · 514 705-5529

2311-9670 Québec inc.

✓ RBQ licence 2311-9670-91 · L'Assomption · Licensed since 2010

Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps

Call · 450 589-3268

Les Constructions Fondex Inc.

✓ RBQ licence 8331-7057-36 · L'Assomption · Licensed since 2006

Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps

Call · 514 617-2288

Entreprises Ricbo Inc.

✓ RBQ licence 8348-3446-31 · L'Assomption · Licensed since 2012

Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps

Call · 450 589-1212

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L’Assomption by the numbers

L’Assomption · septic systems, seniority

In L’Assomption, nine companies have at least twenty years of licence; just one has fewer than five. For L’Assomption, five have held one for ten to nineteen years, two for five to nine. In L’Assomption, the median licence here dates from 2006. Among the companies in L’Assomption, the longest-held licences are those of Jean Raynault Inc. (1984), Asphalte De L'Est inc. (1990) and Mini-Excavation Bel-Job inc. (1998). For L’Assomption, the latest arrivals are Pro-Nord Excavation Inc. (October 21, 2022) and Mini-Excavation Serge Labelle inc. (June 3, 2021).

L’Assomption · septic systems, licences

For L’Assomption, seventeen also do excavation and earthwork (2.5). In L’Assomption, sixteen also build non-drilled water catchments (2.2). Among the companies in L’Assomption, five also hold a general contractor licence (1.2 or 1.3), among them 2311-9670 Québec inc. and Entreprises Ricbo Inc. For L’Assomption, just one declares no other trade; the others mostly name wells (sixteen). In L’Assomption, eight have a $20,000 bond, nine a $40,000 one. Among the companies in L’Assomption, the most frequent bond providers are the APCHQ (nine) and the APMLQ (just one).

L’Assomption · septic systems, homes in 2021

Single-detached houses make up 60% of the stock, or 5,495 homes. The census does not say how many of these homes are off the municipal sewer and water networks.

L’Assomption · septic systems, comparisons

Among the companies in L’Assomption, since 2010, seven companies have joined the ten licensed earlier. In L’Assomption, that is 1.8 of these companies per thousand dwellings. This puts L’Assomption 2nd of the 25 towns around Montréal. The administrative region (Lanaudière) has 346, 5% of them in L’Assomption.

L’Assomption · septic systems, neighbours

In the septic systems ranking, L’Assomption is 9th of 26 (Montréal and 25 towns), beside Boucherville (17) and Brossard (16). The closest towns are Repentigny (11), Mascouche (17) and Terrebonne (46).

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