Gestion Eric Chouinard Inc.
Renovation, construction and general workHeating, ventilation and air conditioningRoofersWood stoves and fireplacesMasonrySeptic systemsWells and water pumps
Call · 450 447-1447RBQ data dated November 3, 2026: 19 companies active in Carignan for septic system work. 11 (58%) have held their licence for 10 years or more, the oldest since 1997; none got its licence in the last 90 days. Closest: Longueuil (33), Brossard (16) and Sainte-Julie (10).

Renovation, construction and general workHeating, ventilation and air conditioningRoofersWood stoves and fireplacesMasonrySeptic systemsWells and water pumps
Call · 450 447-1447Renovation, construction and general workSeptic systems
Call · 450 403-7376Septic systemsWells and water pumps
Call · 450 403-1080Septic systemsWells and water pumps
Call · 514 742-8885Septic systemsWells and water pumps
Call · 450 447-8169Septic systemsWells and water pumps
Call · 450 447-8886Septic systemsWells and water pumps
Call · 514 991-3936Septic systemsWells and water pumps
Call · 450 658-3208Renovation, construction and general workSeptic systemsWells and water pumps
Call · 514 229-7878Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systems
Call · 450 348-8311Septic systemsWells and water pumps
Call · 514 444-1007Septic systemsWells and water pumps
Call · 514 702-3344Concrete and foundationsSeptic systems
Call · 514 608-3282Renovation, construction and general workHeating, ventilation and air conditioningSeptic systemsWells and water pumps
Call · 514 983-4152Septic systemsWells and water pumps
Call · 514 717-0195Renovation, construction and general workSeptic systems
Call · 514 622-2387Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps
Call · 514 298-7651Septic systemsWells and water pumps
Call · 514 236-7308Renovation, construction and general workSeptic systems
Call · 514 622-2387Ad · Featured placement · examplePreview only — this is not a contractor listing
Montréal 234Longueuil 33Brossard 16Sainte-Julie 10Belœil 12Boucherville 17Repentigny 11Laval 132Terrebonne 46Mascouche 17L'Assomption 17
Looking for a septic system contractor in Carignan? All 19 companies on the list are also listed in other trades: wells and water pumps (14), renovation, construction and general work (8) and heating, ventilation and air conditioning (3).
In the Montérégie region, 553 companies work in this trade across 120 cities; Carignan has 19 of them (5th).
On this page: Renovation permits in Carignan
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.
Source: Statistics Canada, 2021 Census, table 98-10-0233-01 (25% sample, rounded counts), Statistics Canada Open Licence.
According to the City of Carignan, when the property is not subject to a PIIA (architectural integration plan), some work does not need a permit: replacing doors and windows with the same size, or changing the type of flooring, when the work is worth $10,000 or less; painting, staining or varnishing; electrical work; replacing exterior wall or roof covering with the same type without changing the structure; or interior maintenance under $10,000 that does not affect the structure, the foundations, a partition, the roof slope or the floor area. A plan from a technologist or an architect is required for work that affects the structure, such as adding or removing a partition or changing a door or window opening. You can apply for a permit online; if your type of application is not offered there, it is filed at City Hall.
Official pages: Permit and certificate application forms (in French) ↗ · Online permits (in French) ↗ · Printable checklist before you sign