9142-4911 Québec inc.
Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 293-2883RBQ data dated November 3, 2026: 8 companies active in Farnham for heating, ventilation or air conditioning work. 4 (50%) have held their licence for 10 years or more, the oldest since 2002; 2 got theirs in the last 90 days.

Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 293-2883Renovation, construction and general workNew home buildersHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 450 293-1101Renovation, construction and general workHeating, ventilation and air conditioningWood stoves and fireplaces
Call · 514 238-8631Heating, ventilation and air conditioning
Call · 514 838-4225Sherbrooke 154Granby 62Magog 22Cowansville 16Bromont 16Coaticook 12Cookshire-Eaton 10Shefford 9Lac-Brome 9Eastman 7Lac-Mégantic 6Orford 6
Looking for a heating and cooling contractor in Farnham? 2 of the 8 companies on the list work in this trade only; the others are also listed in other trades: renovation, construction and general work (6), wood stoves and fireplaces (6) and new home builders (2).
In the Estrie region, 499 companies work in this trade across 78 cities; Farnham has 8 of them (10th).
The choice is limited in Farnham. Companies from nearby cities in the region, such as Sherbrooke (154), Granby (62) and Magog (22), may also serve your area: ask them.
Useful guides: Space heater safety: electric heaters and ethanol fireplaces · Air exchanger maintenance: filters, core and winter care · Heat pump in winter: settings, defrost and maintenance
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: Heating, ventilation and air conditioning 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 heating and cooling contractor in Farnham: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →