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Renovation, construction and general workElectriciansHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 418 275-0271In Mashteuiatsh, 2 companies are listed as active for septic system work in RBQ data dated November 4, 2026. All of them have held their licence for 10 years or more, the oldest since 1997; none got its licence in the last 90 days.

Renovation, construction and general workElectriciansHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 418 275-0271Septic systemsWells and water pumps
Call · 418 275-1850Ad · Featured placement · examplePreview only — this is not a contractor listing
Saguenay 72Alma 17Dolbeau-Mistassini 12Saint-Honoré 8Saint-Félicien 6Saint-Nazaire 5Normandin 4Roberval 4Albanel 4Saint-David-de-Falardeau 4L'Anse-Saint-Jean 3Saint-Ambroise 3
Looking for a septic system contractor in Mashteuiatsh? This page lists the 2 companies in Mashteuiatsh that hold an active RBQ licence for septic system work, according to public RBQ data dated November 4, 2026.
Mashteuiatsh ranks 21st of 37 cities in the Saguenay–Lac-Saint-Jean region for this trade, with 1% of the region's 184 companies.
The choice is limited in Mashteuiatsh. Companies from nearby cities in the region, such as Saguenay (72), Alma (17) and Dolbeau-Mistassini (12), may also serve your area: ask them.
Useful guides: Septic tank pumping: how often and what to check
Open data of the Régie du bâtiment du Québec as of November 4, 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.
Before you sign with a septic system contractor in Mashteuiatsh: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →