Service and emergencies · calls accepted from 7 AM to 11 PM
R.B.Q. 5840-4443-01 · CMMTQ Member · 514 917-5525
Service and emergencies · calls accepted from 7 AM to 11 PM
R.B.Q. 5840-4443-01 · CMMTQ Member · 514 917-5525
Furnaces, water heaters, and connections. Gas requires a license, and that’s a good reason to check your contractor’s license in the public registry.
Our RBQ license number, verifiable in the public registry
Existing building covered by current gas regulations
Conventional thermostat, for a dual-fuel setup
Installation, replacement, and maintenance of natural gas furnaces and water heaters, appliance connections, and verification of vents and safety devices.
The most common setup today is not gas-only: it’s dual-fuel. The heat pump provides heating for most of the season, and the furnace takes over during cold peaks, with automatic switching.
The short answer: not for existing buildings, never in current texts.
The provincial regulation targeting gas in new residential construction was still in project phase in spring 2026. Only the City of Montreal has a regulation in effect, and only for new constructions. The regulation of the Communauté métropolitaine de Montréal, adopted on April 25, 2024, and covering 79 municipalities including Laval, is awaiting ministerial approval: adopted, but not yet in force.
In all scenarios, existing buildings are not affected. Replacing a gas furnace in a built home remains permitted.
Working on a gas installation without a license is illegal. And an invoice without an RBQ license number will cause a grant application to be rejected.
Working on a gas installation without a license is illegal, and a poorly done intervention is unforgiving. Our RBQ license number is 5840-4443-01 and can be verified in the public registry of license holders.
It also matters for a more practical reason: an invoice without an RBQ license number will cause a grant application to be rejected.
Valid license, verifiable in the Régie du bâtiment public register.
Corporation des maîtres mécaniciens en tuyauterie du Québec.
Gree parts and compressor, upon equipment registration.
Service and emergencies, seven days a week.
Yes, in an existing building. Current regulations only target new constructions, and only Montreal’s is in effect.
This is the dual-fuel setup, and it’s very common for replacements. The Flexx R32 Ultra series is compatible, with a conventional 24 VAC thermostat.
Yes, as well as connections and vents.
Through the public registry of license holders of the Régie du bâtiment du Québec, by entering the number. Ours is 5840-4443-01.
We’ll come to you, take measurements, and explain what works best and why. Then, you decide.
