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Septic systems in Longueuil

33 companies holding subcategory 2.4 (on-site wastewater systems) have an address in Longueuil. 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

Corenov Constructeurs inc.

✓ RBQ licence 8224-6950-29 · Longueuil · Licensed since 1999

Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumpsAccessibility lifts

Call · 450 646-4664

Construction Bizz Inc.

✓ RBQ licence 8282-1448-14 · Longueuil · Licensed since 2002

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

Call · 450 670-7008

9067-3708 Québec Inc.

✓ RBQ licence 8260-9652-05 · Longueuil · Licensed since 2001

Renovation, construction and general workWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps

Call · 450 670-3882

Rosemont Métal inc.

✓ RBQ licence 1862-0252-77 · Longueuil · Licensed since 1985

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

Call · 514 728-2411

T3P Construction Inc.

✓ RBQ licence 8353-7613-20 · Longueuil · Licensed since 2008

Renovation, construction and general workMasonryConcrete and foundationsSeptic systemsWells and water pumps

Call · 450 646-0111

Martial Excavation Inc.

✓ RBQ licence 2526-7980-73 · Longueuil · Licensed since 1988

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

Call · 450 445-2839

9267-5891 Québec inc.

✓ RBQ licence 5669-7139-01 · Longueuil · Licensed since 2013

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

Call · 514 895-6565

Atout Construction inc.

✓ RBQ licence 5627-8575-01 · Longueuil · Licensed since 2011

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

Call · 514 588-0169

PRIO + inc.

✓ RBQ licence 5874-8724-01 · Longueuil · Licensed since 2026

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

Call · 450 679-7500

Pavages Métropolitain inc.

✓ RBQ licence 5663-6806-01 · Longueuil · Licensed since 2013

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

Call · 450 321-2446

Les Bétons Longueuil (1982) inc.

✓ RBQ licence 2537-0537-88 · Longueuil · Licensed since 1995

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

Call · 450 670-8800

Dimaria Construction Inc.

✓ RBQ licence 8255-4684-41 · Longueuil · Licensed since 2000

Heating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumpsAccessibility lifts

Call · 450 670-2229

Afcor construction inc.

✓ RBQ licence 8247-3182-57 · Longueuil · Licensed since 2000

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

Call · 450 670-0407

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Longueuil by the numbers

Longueuil · septic systems, seniority

In Longueuil, sixteen companies have at least twenty years of licence; six have fewer than five. For Longueuil, nine have held one for ten to nineteen years, two for five to nine. In Longueuil, the median licence here dates from 2008. Among the companies in Longueuil, the longest-held licences are those of Les Entreprises Nord Construction (1962) Inc. (1984), Grues Bourgeois Inc. (1987) and Les Entreprises Alain Labrecque inc. (1989). For Longueuil, the latest arrivals are Travaux Asphalte Rive-sud inc. (June 9, 2023) and Terrassement Terra Nova (2014) inc. (February 6, 2023).

Longueuil · septic systems, licences

For Longueuil, 32 also do excavation and earthwork (2.5). In Longueuil, 31 also build non-drilled water catchments (2.2). Among the companies in Longueuil, eighteen also hold a general contractor licence (1.2 or 1.3), among them Hanna Qualité Construction inc. and Corenov Constructeurs inc. For Longueuil, all declare another trade; they mostly name wells (31). In Longueuil, ten have a $20,000 bond, 23 a $40,000 one. Among the companies in Longueuil, the most frequent bond providers are Intact Insurance (seven) and the ACQ (six). Just one has “Longueuil” in its name.

Longueuil · septic systems, homes in 2021

Single-detached houses make up 32% of the stock, or 36,090 homes. The census does not say how many of these homes are off the municipal sewer and water networks.

Longueuil · septic systems, comparisons

Among the companies in Longueuil, since 2010, sixteen companies have joined the seventeen licensed earlier. In Longueuil, that is 0.3 of these companies per thousand dwellings. This puts Longueuil 20th of the 25 towns around Montréal. The administrative region (Montérégie) has 553, 6% of them in Longueuil.

Longueuil · septic systems, neighbours

In the septic systems ranking, Longueuil is 5th of 26 (Montréal and 25 towns), beside Terrebonne (46) and Mascouche (17). The closest towns are Brossard (16), Montréal (234) and Boucherville (17).

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