Plomberie Bonneau et fils inc.
Plumbers
Call · 418 291-9902Plumbers in Montmagny
In Montmagny, 7 companies are listed as active for plumbing work in RBQ data dated November 3, 2026. 4 (57%) have held their licence for 10 years or more, the oldest since 1986; 1 got its in the last 90 days.
Get quotes for plumbing work in MontmagnyFree, no obligation: describe your work once, licensed companies answer you.
Get my free quotes →René Samson Inc.
ElectriciansPlumbersHeating, ventilation and air conditioning
Call · 418 248-0210H2O Gaudreault inc.
Plumbers
Call · 418 234-41369330-8146 Québec inc.
PlumbersHeating, ventilation and air conditioning
Call · 418 248-2396Groupe Corriveau EPC inc.
Renovation, construction and general workPlumbersHeating, ventilation and air conditioning
Call · 418 248-8992Alphonse Lamonde inc.
Renovation, construction and general workPlumbersHeating, ventilation and air conditioning
Call · 418 241-1641Réparation de plomberie Montmagny inc.
PlumbersHeating, ventilation and air conditioning
Call · 418 234-0302Ad · Featured placement · examplePreview only — this is not a contractor listing
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Other cities
Lévis 30Saint-Georges 13Thetford Mines 10Sainte-Marie 7Saint-Elzéar 5Sainte-Claire 3Saint-Joseph-de-Beauce 3Adstock 3
Other trades in Montmagny
Finding a plumber in Montmagny
Looking for a plumber in Montmagny? 2 of the 7 companies on the list work in this trade only; the others are also listed in other trades: heating, ventilation and air conditioning (5), renovation, construction and general work (2) and electricians (1).
Montmagny ranks 4th of 38 cities in the Chaudière-Appalaches region for this trade, with 6% of the region's 117 companies.
The choice is limited in Montmagny. Companies from nearby cities in the region, such as Lévis (30), Saint-Georges (13) and Thetford Mines (10), may also serve your area: ask them.
The RBQ numbers: plumbers in Montmagny
7companies with an active licence
1new licences in 90 daysincluding 1 in the last 30 days
4have held their licence for 10 years or more57% · the oldest since 1986
2have 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.
- 6 licences issued by the Corporation des maîtres mécaniciens en tuyauterie du Québec (CMMTQ).
- Most common subcategories: 15.5 Plumbing (7), 15.4 Hydronic heating systems (4), 15.2 Natural gas burner systems (3), 15.3 Oil burner systems (2).
Useful guides: Hiring a plumber in Montréal: RBQ licence and CMMTQ · Lead pipes and drinking water: check your service line · Water damage insurance claim: step by step
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: Plumbers in Greater Montréal.
Homes in Montmagny (2021 Census)
5,460households in a private dwelling
68%of dwellings built before 1981including 38% before 1961
57%of households own their home
52%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 plumber in Montmagny: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →
See also
- Plumbers in Greater Montréal
- Licensed contractors in Montmagny
- RBQ licence check: how to verify a Quebec contractor
- Water leak at home: what to do right away
- Frozen pipes: what to do and how to prevent them
- Bathroom renovation in Montréal: trades, licences, permits
- Water heater replacement: when and who installs it
- Kitchen renovation in Montréal: steps, permits, contractors
- Oil furnace replacement in Quebec: what the rules allow
- Basement renovation in Montréal: permits and valves
- Water damage insurance claim: step by step
- Lead pipes and drinking water: check your service line
- Hiring a plumber in Montréal: RBQ licence and CMMTQ