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Heating and cooling emergencies in Greater Montréal

Heating contractors and plumbers for breakdowns.

100 pros in Greater Montréal

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These contractors serve Greater Montréal and say on their own websites that they repair or install furnaces, heat pumps or air conditioning, or thaw frozen pipes. Two local facts shape the job. In Montréal the City thaws only the public side of a frozen line, so a freeze inside your home is a plumber's call, at your expense. And Montréal public health attributed 66 deaths to the heat of 30 June to 5 July 2018. For heat pumps and air conditioning, check the refrigeration subclass on the licence.

Source: Direction régionale de santé publique de Montréal (source, opens in a new tab)

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  34. DuraClim

    Carrier and Daikin are the named brands for furnaces, heat pumps, air conditioning and heating repair. Open seven days a week, with free estimates offered in Saint-Laurent, Laval, Brossard and Longueuil.

    • Website checked

    Rated 4.8 out of 5 3,746 Google reviews · Nov 2026

    (514) 437-1914Website DuraClim (opens in a new tab)

Not yet verified. We checked each one’s own website for this work, and the licence in the public register where one applies, but we haven’t contacted them yet. How a business gets listed

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What to know in Greater Montréal

  • Québec requires the halocarbon environmental qualification certificate of anyone who installs, maintains, repairs or dismantles a refrigeration or air conditioning appliance that runs on a halocarbon, under the Règlement sur les halocarbures.

    Gouvernement du Québec (source, opens in a new tab) (in French)

Before you hire

  1. Heating installs and repairs must go to a contractor with the right RBQ licence. Check the licence and its subclasses in the RBQ register.

    Source: Régie du bâtiment du Québec (source, opens in a new tab)

  2. For a heat pump or air conditioner, the licence must also include refrigeration subclass 15.9 or 15.10.

    Source: Régie du bâtiment du Québec (source, opens in a new tab)

  3. Oil furnace failing? A major repair such as the heat exchanger is not allowed; it must be replaced with a renewable system, such as electric.

    Source: Gouvernement du Québec (source, opens in a new tab)

Questions about hiring in Greater Montréal

Who can repair or replace a furnace or heat pump?

The RBQ says heating installs and maintenance must go to a contractor holding the appropriate licence. A heating subclass (15.1 for forced air, 15.4 for hydronic) covers the system; its heat pump and air conditioning devices also need refrigeration subclass 15.9 or 15.10. Whoever handles the refrigerant needs Québec’s halocarbon certificate. Look the licence up in the RBQ register before you sign. Régie du bâtiment du Québec (source, opens in a new tab)

My pipes froze. Do I call the City or a plumber?

In Montréal, check the other taps first. If water still runs from another tap in the building, the private plumbing is probably frozen: call a plumbing company, at your own expense, because the City does not repair a building’s private plumbing. If no tap runs, the problem is probably outside the building, and you report it to 311. Ville de Montréal (source, opens in a new tab)

Can an old oil furnace just be repaired?

Only within limits. Québec’s oil heating rules allow normal maintenance, but not major repairs such as replacing the combustion chamber or heat exchanger. In existing buildings of up to 600 m² and three storeys, an oil appliance can’t be replaced by another fossil-fuel one, natural gas included, so plan for a renewable system such as electric heat. Gouvernement du Québec (source, opens in a new tab)

What should a heating or air conditioning contract include?

The Office de la protection du consommateur says the contract should give the contractor’s name and address, the licence and any permit numbers, start and end dates, the liability insurer and policy number, and the total with payment terms, with the estimate attached. For heating, also check the equipment model, its capacity and what happens to the old unit. opc.gouv.qc.ca (source, opens in a new tab)

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