Residential · Furnace repair
Furnace repair in Montreal and the West Island
Our licensed technicians diagnose and repair gas, electric and oil furnaces of all brands. Whether your furnace has stopped heating or isn’t working properly, we explain the problem and provide repair pricing for your approval before work begins.
Emergency service · 24/7
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Furnace service
- Gas, electric and oil furnaces
- Systems
- Emergency furnace repairs
- Same-day service
- Qualified JCD technicians
- In-house
- Serving Greater Montreal
- Since 1994
Common furnace problems
The same symptom can have several causes. We test the system before recommending a repair.
If you smell gas, leave the building and contact your gas provider or emergency services from a safe location.
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Blower runs but there is no heat
What we check We check the operating sequence, controls and heating components to identify where the system is stopping.
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Furnace starts and stops repeatedly
What we check We inspect the filter and airflow, measure temperature rise and test the relevant controls.
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Furnace does not start
What we check We trace the electrical and control circuit to identify the cause of the shutdown.
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Unusual noise or odour
What we check We inspect the mechanical and combustion components and explain any safety concerns before proceeding.
How a furnace repair visit works
You approve the repair price before any work begins.
- 01
Call and schedule
Our office team records the symptoms, equipment information and urgency, then confirms the service details and schedules the appropriate technician.
- 02
System diagnosis
The technician tests the furnace, records the relevant readings and identifies the cause of the problem.
- 03
Review and approve
We explain the findings and provide the repair price. Nothing proceeds without your authorization.
- 04
Repair and documentation
When the required parts are available, the repair is completed and the furnace is tested before being returned to service. The work performed and final operating results are added to your service history.
What it costs
Montreal & West Island, 2026We confirm the applicable service charges when you book and explain repair costs after diagnosis. After-hours, weekend and holiday service carries a different rate. We explain the applicable charges before arranging a technician’s visit.
Questions we get asked
It depends on its condition, repair history and the cost of the work needed. We assess the furnace and explain your repair options. If replacement is worth considering, we can provide an estimate so you can compare costs and decide what makes sense for your home and budget.
Yes. Same-day emergency service, seven days a week. Call 514-696-4629 to book a service call. We prioritize urgent issues such as a complete loss of heat or cooling.
We check our suppliers for the original part or a compatible replacement. If neither is available, we explain your options and can provide an equipment replacement estimate to help you decide how to proceed.
If we find a safety issue that requires shutting down your furnace, we explain what we found and why it should remain off. We document the findings and discuss the available repair or replacement options with you.
We confirm the applicable service charges when you book and explain repair costs after diagnosis.
A dirty filter, a failing flame sensor or restricted airflow are common causes. A technician can check these during a service visit.
No. A cracked exchanger means the furnace needs to be replaced, and it should stay off in the meantime. We explain what we found and the available options.
Filter, breaker, thermostat batteries and that the furnace switch was not turned off. It solves roughly one call in ten.