No Heating? We'll Respond Quickly.
If your furnace has broken down, our team will intervene as quickly as possible to diagnose and repair the problem.
And if the repair takes several hours or more, we bring portable heaters to keep you warm in the meantime.
Emergency Service Availability
We're here for you when you need us most . No matter the time, you can count on us to respond quickly to any heat-free situation.
During Opening Hours
Monday to Friday, 7:30 a.m. to 4:30 p.m.
- Immediate response to your call
- Rapid intervention, generally the same day
Evenings and Weekends
- A technician is always on call
- Response to your call within 30 minutes
The Most Common Furnace Breakdowns
A furnace can break down for many reasons. Our team of certified technicians is trained to quickly diagnose and resolve the most common problems.
Furnace That Won't Start
An ignition problem, faulty flame sensor, or pressure switch issue can prevent your furnace from starting. Our technicians quickly identify the cause and proceed with the repair.
Furnace Blowing Cold Air
If your furnace is running but not heating, the problem may be a faulty burner, gas valve, or temperature limit switch. A quick intervention prevents the situation from worsening.
Unusual Noises Coming From the Furnace
Banging, whistling, or vibrations can indicate a worn or loose component. Ignoring these signs can lead to a complete breakdown.
Thermostat or Control System Failure
A defective or poorly calibrated thermostat can prevent your furnace from operating correctly, even if the unit itself is in good condition.
Clogged Filter or Airflow Problem
A dirty filter restricts airflow and can force the furnace to overheat and shut down. Regular maintenance helps prevent this type of breakdown.
Gas Leak or Suspicious Odour
In the event of a gas smell, leave the premises immediately and call emergency services before contacting us. Your family's safety comes first.
Why Trust Fernand Denis for Your Heating Emergency ?
When your furnace breaks down in the middle of winter, every hour counts. At Fernand Denis, we are equipped and trained to respond quickly and effectively.
RBQ-Certified Technicians
Our technicians hold the required certifications in Ontario and Quebec, ensuring repairs that meet applicable standards.
Portable Heaters Provided
If the repair requires several hours, we bring portable heaters to ensure your comfort while you wait.
All-Brand Service
Our team is able to service the vast majority of furnace brands and models available on the market.
Transparent Diagnosis
Before any repair, we clearly explain the problem identified and the work required, with no surprises.
Frequently Asked Questions About Emergency Furnace Repair
Yes. We are available every day of the week, including evenings and weekends. During business hours (Monday to Friday, 7:30 AM to 4:30 PM), we respond immediately and typically arrive the same day. Outside of these hours, a technician is always on call and will respond to your call within 30 minutes.
We serve the St-Isidore area in Ontario and the Gatineau region in Quebec. If you are unsure whether your address is covered, call us directly at 1.877.768.8848.
Yes, our team is able to service the vast majority of furnace brands and models on the market, whether gas or oil-fired appliances.
If your furnace repair requires several hours or if parts need to be ordered, we bring portable heaters to keep you warm in the meantime.
If your furnace will not start, is blowing cold air, making unusual noises, or if you smell gas, it is important to act quickly. In the event of a gas smell, leave the premises immediately and call emergency services before contacting us.
Yes. Annual maintenance helps detect issues before they become breakdowns in the middle of winter. Fernand Denis offers a maintenance program that ensures your system runs properly throughout the cold season.
The duration depends on the nature of the problem. Most common issues, such as a faulty flame sensor or a clogged filter, can be resolved in a single visit. Our technician will provide an estimated timeframe as soon as the diagnosis is complete.
Yes. All our technicians hold the required certifications in Ontario and Quebec (RBQ), and are trained to carry out repairs in compliance with applicable standards.
