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Septic systems in Mercier

RBQ data dated November 3, 2026: 8 companies active in Mercier for septic system work. 6 (75%) have held their licence for 10 years or more, the oldest since 1985; none got its licence in the last 90 days. Nearest towns: Montréal (234), Laval (132) and Brossard (16).

Excavation on a wooded lot
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Active licences in RBQ data dated November 3, 2026 · official register ↗ · list order

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Your business could appear hereSeptic systems · Mercier and the cities you serveHomeowners can open your profile and call you directly.

Other cities

Montréal 234Laval 132Brossard 16Saint-Eustache 10Saint-Lazare 11Longueuil 33Boisbriand 11Boucherville 17Blainville 17Terrebonne 46Mirabel 62

Other trades in Mercier

Finding a septic system contractor in Mercier

Looking for a septic system contractor in Mercier? 2 of the 8 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 (3).

In the Montérégie region, 553 companies work in this trade across 120 cities; Mercier has 8 of them (18th).

The choice is limited in Mercier. Companies from nearby cities in the region, such as Montréal (234), Laval (132) and Brossard (16), may also serve your area: ask them.

The RBQ numbers: septic systems in Mercier

8companies with an active licence
0new licences in 90 daysnone in the last 30 days
6have held their licence for 10 years or more75% · the oldest since 1985
6have a $40,000 licence bondand 2 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 (8), 1.4 Roads and pipelines (5), 2.2 Non-drilled water catchment works (4), 1.2 Small buildings (3).

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 Mercier (2021 Census)

5,395households in a private dwelling
33%of dwellings built before 1981including 8% before 1961
81%of households own their home
71%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 Mercier: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →

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