PROFESSIONAL FURNACE REPAIR MONTREAL
Is your furnace blowing cold air, making strange noises, or failing to turn on? Our certified technicians provide fast, reliable gas and electric furnace repair to get your heat back on quickly. Whether it’s weak airflow, uneven heating, or a burning smell, we’ll diagnose the issue and fix it right the first time—keeping your home safe, warm, and energy-efficient all season long.
Types of Furnaces We Repair
Electric Furnace
Gas Furnace
Montreal Heating
& Cooling Experts
At Flash Repair, we know how unpredictable Montreal weather can be. That’s why we specialize in both furnace and air conditioning repair—keeping you comfortable all year round. Whether your heater is blowing cold air, your AC isn’t cooling properly, or your system makes loud noises or strange smells, our certified technicians provide quick, professional service you can rely on.
We work with all major gas and electric furnace brands, offering transparent pricing, same-day diagnostics, and repairs that last. From pilot light issues and faulty thermostats to clogged filters and airflow problems, we’ll get your heating or cooling system running efficiently again in no time.
Service Call
+
Diagnostic
Service Information
Technicians are professionally trained and are equipped with the proper tools.
Travel to the service location is included in the quoted fees.
The diagnostic service includes a full inspection of the machine's functions and the testing of individual electronic components where applicable.
Clients receive an estimate of repair service fees and parts costs following the diagnostic service.
Technicians carry the majority of standard parts which increases the likelihood of being able to complete the repair during the first visit.
Technicians will perform maintenance on your machine during the repair work as well as inform you of some best practices to ensure a longer life cycle of the machine.
EXTRAS: Additional fees for gas appliances, secondary technicians, special circumstances and inability to do work even though technician was present.
1 Year Guarantee
Parts purchased through our technicians are guaranteed for 1 year.
Labour is guaranteed for 3 months.
COMMON FURNACE PROBLEMS
Furnace Not Blowing Hot Air
When your furnace turns on but only blows cold air, it’s often due to a faulty thermostat, clogged air filter, or ignition problem. Our technicians quickly pinpoint the issue and restore proper heating to keep your home warm and comfortable.
Furnace Making Strange Noises
Hearing banging, rattling, or squealing sounds from your furnace? These noises can signal loose parts, worn-out bearings, or blower motor issues. We’ll inspect and repair the source before it leads to a costly breakdown.
Furnace Keeps Turning On and Off
If your furnace is short cycling—turning on and off too frequently—it could be caused by restricted airflow, a dirty flame sensor, or an oversized unit. Our experts will diagnose the cause and restore efficient, consistent heating.
Furnace Won’t Turn On
A furnace that won’t start can result from electrical issues, a malfunctioning thermostat, or ignition failure. We provide fast diagnostics and same-day repairs to get your system running safely again.
Furnace Leaking Water
If you notice water pooling around your furnace, it’s likely from a condensation leak, clogged drain line, or faulty humidifier. We’ll find the source of the leak and fix it before it causes further damage to your system or flooring.
Furnace Running But Home Still Cold
If your system runs constantly but doesn’t heat your home evenly, it might be a failing blower motor, dirty filter, or thermostat calibration issue. We’ll fine-tune your system for better efficiency and comfort.
Weak Airflow From Vents
When your furnace is running but airflow feels weak, you may have duct leaks, a clogged filter, or a failing blower motor. We’ll identify the blockage or mechanical problem and ensure your system delivers even heat throughout your home.
Burning Smell Coming From Furnace
A burning or smoky smell from your furnace is a sign of dust buildup, overheating components, or electrical issues. Turn it off immediately and call a professional—our team will inspect it safely and prevent potential damage or fire risks.
Smell of Gas From Furnace
If you notice a gas smell coming from your furnace, it could indicate a gas leak or cracked heat exchanger—both serious safety hazards. Turn off your system immediately, leave the area, and call a professional. Our certified gas furnace technicians provide emergency furnace repair to detect and fix leaks safely and restore peace of mind.
FURNACE BRANDS WE REPAIR
Amana
American Standard
Armstrong Air
Bryant
Carrier
Chinook
Coleman
Comfortmaker
Conforto
Daikin
Dettson
Frigidaire
Goodman
Heil
Intertherm
Keeprite
Lennox
Luxaire
Maytag
Miller
Napoleon
Nortron
Nordyne
Ouellet
Payne
Rheem
Ruud
Stelpro
Supreme
Tempstar
Trane
York