Les Entreprises Bimon inc.
Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 820-6556RBQ data dated November 3, 2026: 9 companies active in Magog for septic system work. 5 (56%) 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 · 819 820-6556Heating, ventilation and air conditioningSeptic systems
Call · 819 578-5185Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplacesConcrete and foundationsSeptic systemsWells and water pumps
Call · 819 843-2367Concrete and foundationsSeptic systemsWells and water pumps
Call · 819 560-1920Septic systemsWells and water pumps
Call · 819 847-2221Renovation, construction and general workSeptic systems
Call · 819 674-4674Concrete and foundationsSeptic systemsWells and water pumps
Call · 819 843-2367Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 819 822-6413Septic systemsWells and water pumps
Call · 819 843-2984Ad · Featured placement · examplePreview only — this is not a contractor listing
Sherbrooke 54Granby 20Shefford 7Lac-Brome 7Cowansville 6Sainte-Cécile-de-Milton 6Sutton 5Cookshire-Eaton 5Valcourt 4Saint-Claude 4Ascot Corner 4Hatley 4
Looking for a septic system contractor in Magog? All 9 companies on the list are also listed in other trades: wells and water pumps (7), renovation, construction and general work (4) and concrete and foundations (4).
In the Estrie region, 244 companies work in this trade across 72 cities; Magog has 9 of them (3rd).
The choice is limited in Magog. Companies from nearby cities in the region, such as Sherbrooke (54), Granby (20) and Shefford (7), may also serve your area: ask them.
On this page: Renovation permits in Magog
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 Magog, a certificate of authorization is required to renovate or repair a building. Some work is exempt if it does not change the foundations, partitions or structure, does not increase the floor area or volume and is not related to damage from a disaster: painting, gutters, mortar joints, kitchen or bathroom cabinets, floor coverings, repairing or replacing electrical, plumbing (without changing the septic system) or heating equipment, re-roofing with an identical or similar material, and replacing doors or windows of the same size. A certificate is still required for a bedroom door or window, insulating exterior walls and foundation drains; a porch, balcony or staircase needs a permit. In a PIIA zone, an application is required even for work that would otherwise be exempt. Applications are made online.
Official pages: Permits, City of Magog (in French) ↗ · Sheet 08: work without a permit or certificate (in French) ↗ · Printable checklist before you sign