Larochelle Construction inc.
Renovation, construction and general work
Call · 450 881-3109Licensed contractors in Saint-Louis
RBQ data dated November 3, 2026: 9 companies active in Saint-Louis. 2 (22%) have held their licence for 10 years or more, the oldest since 2010; none got its licence in the last 90 days. Choose a trade.
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All companies
Isolation St-Denis (2009) inc.
Specialty contractors
Call · 450 788-3418Excavation Martin Chagnon inc.
Septic systemsWells and water pumps
Call · 450 261-7491Système Intérieur Benjamin Carrier ltée.
Specialty contractors
Call · 514 886-4282E.S.M. Construction inc
Renovation, construction and general work
Call · 450 278-3285Groupe T.M inc.
Specialty contractors
Call · 450 513-20852738-2621 Québec Inc.
Heating, ventilation and air conditioning
Call · 450 788-2726Les Entreprises Forestières F. Méthot Et Fils
Renovation, construction and general work
Call · 514 808-2980Groupe Terrasco inc.
Specialty contractors
Call · 450 230-4492Contractors in Saint-Louis at a glance
Saint-Louis (region: Montérégie) has 9 companies with an active RBQ licence as of November 3, 2026. The most common trades: renovation, construction and general work (3), heating, ventilation and air conditioning (1) and septic systems (1).
Saint-Louis ranks 128th of 157 cities in the Montérégie region for the number of licensed contractors.
9 companies have a published phone number and 2 have held their licence for 10 years or more.
Tips for choosing a contractor in Saint-Louis
- The RBQ licence number must appear on the quote, the contract and the invoice.
- Keep quotes, invoices and warranties: you will need them if something goes wrong.
- Ask whether the company will use subcontractors: each of them needs its own licence.
Other cities in the Montérégie region
Longueuil 1,015Saint-Jean-sur-Richelieu 753Brossard 370Saint-Hyacinthe 338Boucherville 264Châteauguay 246Salaberry-de-Valleyfield 244Vaudreuil-Dorion 228Sainte-Julie 214Saint-Lazare 195Chambly 193Carignan 187