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Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 693-4163RBQ data dated November 5, 2026: 35 companies active in Trois-Rivières for septic system work. 25 (71%) have held their licence for 10 years or more, the oldest since 1984; none got its licence in the last 90 days.

Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 693-4163Septic systems
Call · 819 374-8575Renovation, construction and general workSeptic systemsWells and water pumps
Call · 819 377-0633Septic systemsWells and water pumps
Call · 819 377-1750Septic systemsWells and water pumps
Call · 819 377-4961Septic systemsWells and water pumps
Call · 819 374-8118Renovation, construction and general workPlumbersHeating, ventilation and air conditioningSeptic systems
Call · 819 701-9221Septic systemsWells and water pumps
Call · 819 377-5656Renovation, construction and general workSeptic systemsWells and water pumps
Call · 819 379-1260Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 819 415-0414Renovation, construction and general workMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 377-3336Septic systemsWells and water pumps
Call · 819 372-9969Renovation, construction and general workSeptic systemsWells and water pumps
Call · 819 379-5222Septic systemsWells and water pumps
Call · 819 374-0635Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 371-2071Septic systemsWells and water pumps
Call · 819 379-2535Renovation, construction and general workMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 375-7417Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 372-6388Septic systems
Call · 819 448-4387Septic systemsWells and water pumps
Call · 819 375-1936Renovation, construction and general workPlumbersConcrete and foundationsSeptic systems
Call · 819 373-3800Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumpsAccessibility lifts
Call · 819 375-2168Renovation, construction and general workElectriciansHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 377-3336Renovation, construction and general workSeptic systemsWells and water pumps
Call · 819 373-8191Wood stoves and fireplacesSeptic systemsWells and water pumps
Call · 819 379-6374Shawinigan 24La Tuque 6Saint-Boniface 6Saint-Tite 5Saint-Maurice 4Maskinongé 4Yamachiche 4Saint-Mathieu-du-Parc 4Sainte-Geneviève-de-Batiscan 3Notre-Dame-de-Montauban 3Saint-Élie-de-Caxton 3Wemotaci 3
Looking for a septic system contractor in Trois-Rivières? 4 of the 35 companies on the list work in this trade only; the others are also listed in other trades: wells and water pumps (27), renovation, construction and general work (19) and concrete and foundations (11).
With 35 of the 136 companies in the Mauricie region, Trois-Rivières ranks first for this trade.
On this page: Renovation permits in Trois-Rivières
Useful guides: Septic tank pumping: how often and what to check
Open data of the Régie du bâtiment du Québec as of November 5, 2026, updated every night.
Required licence, issuing body and subcategories for this trade: Septic systems in Greater Montréal.
Source: Statistics Canada, 2021 Census, table 98-10-0233-01 (25% sample, rounded counts), Statistics Canada Open Licence.
In Trois-Rivières, some light work on a house does not need a building permit, but a free declaration of work is required before starting. A permit is still required for other work, such as a foundation drain.
Official pages: Declaration of work (in French) ↗ · Printable checklist before you sign