9090-6629 Québec Inc.
Heating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 450 258-4350RBQ data dated November 4, 2026: 20 companies active in Saint-Colomban for septic system work. 7 (35%) have held their licence for 10 years or more, the oldest since 2002; 1 got its in the last 90 days.

Heating, ventilation and air conditioningWood stoves and fireplacesSeptic systemsWells and water pumps
Call · 450 258-4350Septic systemsWells and water pumps
Call · 450 258-4886Renovation, construction and general workNew home buildersSeptic systems
Call · 450 818-5595Renovation, construction and general workNew home buildersSeptic systems
Call · 450 818-5595Septic systems
Call · 450 821-4470Septic systemsWells and water pumps
Call · 450 592-3006Mirabel 62Saint-Jérôme 29Saint-Sauveur 19Mont-Tremblant 18Saint-Hippolyte 18Mont-Laurier 18Sainte-Sophie 18Sainte-Adèle 18Blainville 17Mont-Blanc 15Brownsburg-Chatham 14Sainte-Marguerite-du-Lac-Masson 13
Looking for a septic system contractor in Saint-Colomban? 5 of the 20 companies on the list work in this trade only; the others are also listed in other trades: wells and water pumps (11), renovation, construction and general work (6) and heating, ventilation and air conditioning (3).
In the Laurentides region, 486 companies work in this trade across 65 cities; Saint-Colomban has 20 of them (3rd).
Useful guides: Septic tank pumping: how often and what to check
Open data of the Régie du bâtiment du Québec as of November 4, 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.
Before you sign with a septic system contractor in Saint-Colomban: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →