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Septic systemsWells and water pumps
Call · 450 261-7491Septic systems in Saint-Louis
In Saint-Louis, one company is listed as active for septic system work in RBQ data dated November 3, 2026.
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Other cities
Longueuil 33Saint-Hyacinthe 26Saint-Jean-sur-Richelieu 25Salaberry-de-Valleyfield 20Carignan 19Boucherville 17Brossard 16Sorel-Tracy 12Belœil 12Saint-Lazare 11Sainte-Julie 10Châteauguay 9
Other trades in Saint-Louis
Finding a septic system contractor in Saint-Louis
In Saint-Louis, one company holds an active RBQ licence for septic system work, according to RBQ data dated November 3, 2026.
Saint-Louis ranks 114th of 120 cities in the Montérégie region for this trade, with < 1% of the region's 553 companies.
The choice is limited in Saint-Louis. Companies from nearby cities in the region, such as Longueuil (33), Saint-Hyacinthe (26) and Saint-Jean-sur-Richelieu (25), may also serve your area: ask them.
The RBQ numbers: septic systems in Saint-Louis
1companies with an active licence
0new licences in 90 daysnone in the last 30 days
0have a $40,000 licence bondand 1 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 (1), 2.4 On-site wastewater (septic) systems (1).
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.
Before you sign with a septic system contractor in Saint-Louis: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →