B. Choquette Excavation Inc.
Septic systemsWells and water pumps
Call · 450 584-2449Septic systems in Saint-Marc-sur-Richelieu
RBQ data dated November 3, 2026: 5 companies active in Saint-Marc-sur-Richelieu for septic system work. 3 (60%) have held their licence for 10 years or more, the oldest since 1989; none got its licence in the last 90 days.
Get quotes for septic system work in Saint-Marc-sur-RichelieuFree, no obligation: describe your work once, licensed companies answer you.
Get my free quotes →Les Entreprises J2B inc.
Septic systems
Call · 514 436-5060St-Germain international inc.
Septic systemsWells and water pumps
Call · 514 962-5974Excavation G. Jeannotte & Fils Inc.
Septic systemsWells and water pumps
Call · 450 584-2502Belamex Inc.
Renovation, construction and general workSeptic systemsWells and water pumps
Call · 450 584-3343Ad · Featured placement · examplePreview only — this is not a contractor listing
Your business could appear hereSeptic systems · Saint-Marc-sur-Richelieu and the cities you serveHomeowners can open your profile and call you directly.
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-Marc-sur-Richelieu
Finding a septic system contractor in Saint-Marc-sur-Richelieu
Looking for a septic system contractor in Saint-Marc-sur-Richelieu? 1 of the 5 companies on the list work in this trade only; the others are also listed in other trades: wells and water pumps (4) and renovation, construction and general work (1).
In the Montérégie region, 553 companies work in this trade across 120 cities; Saint-Marc-sur-Richelieu has 5 of them (37th).
The choice is limited in Saint-Marc-sur-Richelieu. 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-Marc-sur-Richelieu
5companies with an active licence
0new licences in 90 daysnone in the last 30 days
3have held their licence for 10 years or more60% · the oldest since 1989
2have a $40,000 licence bondand 3 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: 2.4 On-site wastewater (septic) systems (5), 2.2 Non-drilled water catchment works (4), 1.4 Roads and pipelines (1), 1.6 Underwater civil engineering works (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.
Homes in Saint-Marc-sur-Richelieu (2021 Census)
880households in a private dwelling
51%of dwellings built before 1981including 19% before 1961
86%of households own their home
89%of dwellings are single-detached houses
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 Saint-Marc-sur-Richelieu: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →