Septic systems in Delson

RBQ data dated November 3, 2026: 6 companies active in Delson for septic system work. 3 (50%) have held their licence for 10 years or more, the oldest since 1989; none got its licence in the last 90 days. Closest: Brossard (16), Montréal (234) and Longueuil (33).

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Active licences in RBQ data dated November 3, 2026 · official register ↗ · list order

Q.C. Environnement & Excavation Inc.

✓ RBQ licence 5584-7867-01 · Delson · Licensed since 2012

Septic systems

Call · 450 845-6214

Les Forages C.C.L. (1993) inc.

✓ RBQ licence 2850-0361-60 · Delson · Licensed since 1994

Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps

Call · 450 632-3995

Dyfotech inc.

✓ RBQ licence 2724-5919-86 · Delson · Licensed since 1989

Concrete and foundationsSeptic systemsWells and water pumps

Call · 450 635-8870

Other cities

Montréal 234 Brossard 16 Longueuil 33 Laval 132 Boucherville 17 Sainte-Julie 10 Saint-Eustache 10 Belœil 12 Boisbriand 11 Terrebonne 46 Repentigny 11

Other trades in Delson

Renovation, construction and general work38 New home builders3 Electricians9 Plumbers6 Heating, ventilation and air conditioning14 Wood stoves and fireplaces5 Concrete and foundations3 Wells and water pumps3 Specialty contractors28 All companies in Delson92

Finding a septic system contractor in Delson

Looking for a septic system contractor in Delson? 2 of the 6 companies on the list work in this trade only; the others are also listed in other trades: wells and water pumps (3), renovation, construction and general work (2) and concrete and foundations (2).

In the Montérégie region, 553 companies work in this trade across 120 cities; Delson has 6 of them (27th).

The choice is limited in Delson. Companies from nearby cities in the region, such as Montréal (234), Brossard (16) and Longueuil (33), may also serve your area: ask them.

The RBQ numbers: septic systems in Delson

6companies with an active licence

0new licences in 90 daysnone in the last 30 days

3have held their licence for 10 years or more50% · the oldest since 1989

4have 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 (6), 2.2 Non-drilled water catchment works (3), 1.3 Buildings of all kinds (2), 1.4 Roads and pipelines (2).

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 Delson (2021 Census)

3,480households in a private dwelling

39%of dwellings built before 1981including 10% before 1961

68%of households own their home

58%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 Delson: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →