Constructions Unibec inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 418 276-4140Septic systems in Dolbeau-Mistassini
RBQ data dated November 4, 2026: 12 companies active in Dolbeau-Mistassini for septic system work. 7 (58%) have held their licence for 10 years or more, the oldest since 1984; none got its licence in the last 90 days.
Get quotes for septic system work in Dolbeau-MistassiniFree, no obligation: describe your work once, licensed companies answer you.
Get my free quotes →Grues Beausini inc.
Septic systemsWells and water pumps
Call · 418 276-6387Excavation Unibec Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 418 276-4140Forestier Frédéric Lamothe inc.
Septic systemsWells and water pumps
Call · 418 671-11839163-7777 Québec inc.
Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps
Call · 418 276-4166Entreprises De Construction Gaston Morin (1979) Ltée
Renovation, construction and general workConcrete and foundationsSeptic systemsWells and water pumps
Call · 418 276-4166Transport Excavation Jean-Rock Simard inc.
Septic systemsWells and water pumps
Call · 418 276-8153Other cities
Saguenay 72Alma 17Saint-Honoré 8Saint-Félicien 6Saint-Nazaire 5Normandin 4Roberval 4Albanel 4Saint-David-de-Falardeau 4L'Anse-Saint-Jean 3Saint-Ambroise 3Saint-Fulgence 3
Other trades in Dolbeau-Mistassini
Finding a septic system contractor in Dolbeau-Mistassini
Looking for a septic system contractor in Dolbeau-Mistassini? 1 of the 12 companies on the list work in this trade only; the others are also listed in other trades: wells and water pumps (10), renovation, construction and general work (6) and concrete and foundations (4).
In the Saguenay–Lac-Saint-Jean region, 184 companies work in this trade across 37 cities; Dolbeau-Mistassini has 12 of them (3rd).
The RBQ numbers: septic systems in Dolbeau-Mistassini
12companies with an active licence
0new licences in 90 daysnone in the last 30 days
7have held their licence for 10 years or more58% · the oldest since 1984
7have a $40,000 licence bondand 5 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 (12), 2.2 Non-drilled water catchment works (10), 1.4 Roads and pipelines (7), 1.3 Buildings of all kinds (6).
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.
Homes in Dolbeau-Mistassini (2021 Census)
6,260households in a private dwelling
62%of dwellings built before 1981including 23% before 1961
67%of households own their home
60%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 Dolbeau-Mistassini: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →