9127-8887 Québec inc.
Renovation, construction and general workMasonry
Call · 514 617-0602Licensed contractors in Saint-Thomas
RBQ data dated November 3, 2026: 41 companies active in Saint-Thomas. 17 (41%) have held their licence for 10 years or more, the oldest since 1989; 2 got theirs in the last 90 days. Choose a trade.
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All companies
9119-3904 Québec inc.
Electricians
Call · 450 753-7465Scellement de fissures d'asphalte inc.
Specialty contractors
Call · 514 944-6936Les Industries Harnois Inc.
Renovation, construction and general work
Call · 450 756-10419223-7841 Québec Inc.
Specialty contractors
Call · 450 755-1980Portes Et Châssis J.C. Coulombe inc.
Specialty contractors
Call · 450 753-3218Les Entreprises René Vincent inc.
Septic systemsWells and water pumps
Call · 450 759-14287859902 Canada inc.
Renovation, construction and general workNew home builders
Call · 450 751-0180Béton Adam inc.
Concrete and foundationsSeptic systemsWells and water pumps
Call · 450 759-8434Armoires Nouvelle Génération (2009) inc.
Renovation, construction and general work
Call · 450 755-1434Coffrage Lanau-Nord inc.
Concrete and foundationsSeptic systemsWells and water pumps
Call · 450 759-8434Climatisation/chauffage Sanyair inc.
Heating, ventilation and air conditioning
Call · 450 365-2472Construction Charles Régnier inc.
Renovation, construction and general work
Call · 450 540-2874Planchers Richard Toupin Inc.
Specialty contractors
Call · 450 759-6984GM Peintures inc.
PaintersSpecialty contractors
Call · 450 559-3328Les entreprises Guy Lavoie inc.
Electricians
Call · 514 237-3796Les Rénovations Christian Allard Inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 752-6461Contractors in Saint-Thomas at a glance
Saint-Thomas (region: Lanaudière) has 41 companies with an active RBQ licence as of November 3, 2026. The most common trades: renovation, construction and general work (19), electricians (4) and septic systems (3).
Saint-Thomas ranks 25th of 63 cities in the Lanaudière region for the number of licensed contractors.
41 companies have a published phone number and 17 have held their licence for 10 years or more.
Homes in Saint-Thomas (2021 Census)
1,475households in a private dwelling
47%of dwellings built before 1981including 23% before 1961
74%of households own their home
74%of dwellings are single-detached houses
Source: Statistics Canada, 2021 Census, table 98-10-0233-01 (25% sample, rounded counts), Statistics Canada Open Licence.
Tips for choosing a contractor in Saint-Thomas
- Check the licence status in the RBQ's official register on the day you sign.
- Keep quotes, invoices and warranties: you will need them if something goes wrong.
- Ask for at least two or three written quotes and compare the description of the work, not just the price.
Other cities in the Lanaudière region
Terrebonne 1,151Repentigny 549Mascouche 520Saint-Lin–Laurentides 296L'Assomption 258Sainte-Julienne 196Lavaltrie 194Rawdon 159Saint-Roch-de-l'Achigan 131Joliette 121L'Épiphanie 93Saint-Calixte 83