Brassard Construction et Foresterie inc.
Heating, ventilation and air conditioningSeptic systemsWells and water pumps
Call · 514 726-7806Septic systems in Mandeville
RBQ data dated November 3, 2026: 5 companies active in Mandeville for septic system work. 2 (40%) have held their licence for 10 years or more, the oldest since 2011; none got its licence in the last 90 days.
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Get my free quotes →9307-4102 Québec inc.
Septic systemsWells and water pumps
Call · 450 835-5043Excavation Daniel Beauparlant inc.
Septic systemsWells and water pumps
Call · 450 365-1176Construction Louis Beauparlant inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps
Call · 450 835-7517Solutions Rénoexpert inc.
Concrete and foundationsSeptic systemsWells and water pumps
Call · 514 809-7876Ad · Featured placement · examplePreview only — this is not a contractor listing
Your business could appear hereSeptic systems · Mandeville and the cities you serveHomeowners can open your profile and call you directly.
Other cities
Terrebonne 46L'Assomption 17Mascouche 17Rawdon 16Joliette 13Saint-Lin–Laurentides 13Saint-Roch-de-l'Achigan 13Repentigny 11Saint-Donat 11Sainte-Julienne 11Saint-Ambroise-de-Kildare 10Sainte-Marcelline-de-Kildare 10
Other trades in Mandeville
Finding a septic system contractor in Mandeville
Looking for a septic system contractor in Mandeville? All 5 companies on the list are also listed in other trades: wells and water pumps (5), heating, ventilation and air conditioning (2) and concrete and foundations (2).
In the Lanaudière region, 346 companies work in this trade across 56 cities; Mandeville has 5 of them (24th).
The choice is limited in Mandeville. Companies from nearby cities in the region, such as Terrebonne (46), L'Assomption (17) and Mascouche (17), may also serve your area: ask them.
The RBQ numbers: septic systems in Mandeville
5companies with an active licence
0new licences in 90 daysnone in the last 30 days
2have held their licence for 10 years or more40% · the oldest since 2011
2have a $40,000 licence bondand 3 at $20,000 · may compensate a client under RBQ rules
- All of them have a published phone number: you can call them directly.
- Most common subcategories: 2.2 Non-drilled water catchment works (5), 2.4 On-site wastewater (septic) systems (5), 6.1 Wood framing (3), 15.7 Residential ventilation (2).
Useful guides: Septic tank pumping: how often and what to check
Open data of the Régie du bâtiment du Québec as of November 3, 2026, updated every night.
Required licence, issuing body and subcategories for this trade: Septic systems in Greater Montréal.
Homes in Mandeville (2021 Census)
1,240households in a private dwelling
54%of dwellings built before 1981including 23% before 1961
86%of households own their home
94%of dwellings are single-detached houses
Source: Statistics Canada, 2021 Census, table 98-10-0233-01 (25% sample, rounded counts), Statistics Canada Open Licence.
Before you sign with a septic system contractor in Mandeville: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →