How Much does it cost to repair a furnace in Toronto


Taking good care of your furnace doesn’t exempt it from the possibility of damage. Now imagine if you don’t take proper care of it.

Meanwhile, being stuck with a faulty furnace during the severe winter cold is an unpalatable experience. This feeling can worsen if you have no idea of the cost of repairing a furnace before the malfunction. However, you don’t have to be in these shoes. Reading this article will ensure that.

Old or new, your furnace can act up. So you may need a repair. Here, we’ll take you through the cost of repairing a furnace in Toronto.

Furthermore, the price of repair may vary depending on several factors. Thus, it is also vital you know the variables that can influence repair costs. Fortunately, we’ll be treating those too in this article.

In addition, we’ll cover some causes of furnace damage. This coverage will, in turn, serve as furnace maintenance tips for you. So let’s get into it.

Cost of Furnace Repair in Toronto

Averagely, a facility owner in Toronto will spend about $290 on repairing a furnace. Also, homeowners in Toronto are likely to spend between $132 and $460 to repair a furnace.

Meanwhile, the cost of a furnace repair will usually vary depending on the type of furnace you’re repairing. Types of furnaces include electric furnaces, gas furnaces, and oil furnaces.

The repair cost for each furnace goes as follows:

Cost of Oil Furnace Repair

Usually, repairing an oil furnace costs between $320 and $1,250. The eventual amount you pay will depend on the fault of the furnace.

Cost of Gas Furnace Repair

Gas furnaces work just like oil furnaces. The similarity in functions means they tend to share the same malfunctions. As such, the repair cost will also range between $320 and $1250.

Cost of Electric Furnace Repair

Electric furnaces will cost you about $310 to repair. Usually, you may need to replace an electric component when electric furnaces develop faults. So you may spend between $60-250 on parts replacement.

Causes of Furnace Problems

Your furnace may develop problems, especially when you don’t properly care for it. In other words, the best way to keep your furnace problem-free is through good maintenance. Thus, it is essential you know the factors that lead to a malfunctioning furnace.

The above understanding will help you avoid furnace issues. The knowledge will also help you reduce repair costs if they eventually happen.

For example, most homeowners make the mistake of ignoring a change in the sound of their furnace. Alas, the sound alteration is a sign that the furnace needs repair. But the inattention to this change will likely escalate into other faults and cost you more during repairs.

Factors that cause furnace problems include:

Causes Of Furnace Problems

Poor Maintenance

Paying attention to your furnace is the key to properly maintaining it. You can avoid constant repairs by taking the following maintenance precautions:

  • Inspecting furnace filter for leaks.
  • Replacement of furnace filters.
  • Constantly check your filter usage.

You’ll avoid many furnace issues if you imbibe these checks as regular duties.

Unprofessional Installation

Most times, furnaces cost a lot to purchase. You’ll thus be shooting yourself in the leg by hiring just anyone to install your furnace. In addition, repairs that stem from the wrong installation cost more than you’d spend in hiring a professional to install your furnace.

Some homeowners even go ahead to install their furnaces themselves. We don’t recommend this action except you’re, of course, a furnace technician. Furnace technicians know the proper installation processes and how best to go about them.

You especially need to hire a furnace professional if you’re installing a gas furnace. So you can’t risk the possibility of gas leaks.

Blocked or Filthy Filter

A cloggy filter reduces your furnace efficiency. This dirty state tampers with its heat production and air quality. As such, the adulteration leads to poor performance of your furnace and inevitably causes problems for it. Ensure to replace your furnace filter often. We suggest you change the filter once a month.

Thermostat Issues

Your furnace thermostat can hit a sort of deterioration. This breakdown tends to affect the control of heating routines. Therefore, you need to change your furnace thermostat immediately you notice a deplete in functionality. Afterwards, you can set it as you deem fit.

Abnormal Sounds

Your furnace will most likely change sound once it develops a slight fault. This sound is usually noisy enough to tell you it needs attention. The noises may be squeaks, grunts, rumbles, and rattles. Of course, you may try to fix the problem yourself. But we suggest you hire a furnace repair technician for proper problem diagnosis and repair.

Mismanaged Flame Sensor

A flame sensor is an essential part of a furnace. It comes with every furnace. It is a vital element that ensures gas doesn’t continue emitting when the flame is off. But poor maintenance can handicap the safety functionality of the flame sensor.

The flame sensor becomes faulty when it can’t properly detect when the flame is on or off. This malfunction is usually due to filth accumulation. The furnace may stop working in some instances.

Factors that Influence Furnace Repair Prices

There are other answers that attach to the question of – how much will I spend on furnace repair? These answers include factors that influence furnace repair prices in Toronto.

Several variables influence the cost to repair a furnace. Some factors make the costs less, and others make it more.

These factors include the following:

Furnace Issue

The fault of your furnace will determine the cost of fixing it. For example, furnace leakage will cost between $80 and $1550. Meanwhile, a furnace motor problem will usually cost between $160 to $255 to fix.

Service Charges

The professionals you hire will also determine the cost to repair a furnace in Toronto. Usually, service charges range between $45 to $120. The eventual price will depend on the technician you hire. Inspection, diagnosis, and repair are what the service charges cover.

Please note that prices may increase beyond this range in certain seasons. For example, hiring a furnace repair technician during public holidays may cost more. In a nutshell, your service charges are a reflection of the expertise of your furnace repair technician and how they value their time.

Furnace Age

The age of your furnace also influences furnace repair pricing. For example, an old furnace will likely require changing dead parts. Purchasing these spare parts in addition to the service charge can be quite a sum too.


You’ll spend less on repairs if the warranty still covers your furnace. In most instances, you may not even have to pay at all. But you may have to pay once your furnace warranty reaches the expiry date. The extent of problems will determine the furnace repair price range too.

Spare Parts Accessibility

There are instances when you may need to replace a faulty part of your furnace. The availability of that part in Toronto will mean it’ll cost moderately. But it may be expensive if the spare part requires shipping from another country or state.

Usually, it may be more cost-effective to purchase a new furnace instead of replacing an expensive part that requires international shipping. Furthermore, accessibility includes whether or not your contractor can buy the spare part in Ontario.

Related Article: How Much Space Should Be Around Your Furnace?

Spare Parts Accessibility

Common Furnace Faults and Cost Of Fixing Them

You may also want to know how much to fix your furnace when it develops specific faults. So, the following are common furnace problems alongside their repair prices in Toronto.

Most times, the question isn’t about how much to hire a furnace technician. Instead, it’s usually about how crucial the potential repair is.

Thus, the repair form has more stake in cost determination than the technician you may hire. The following includes the specific cost to repair a furnace depending on its fault.

Thermostat Problems

The thermostat monitors temperature in conjunction with the furnace. It guides the furnace on stoppage and starting times for heating routines. Your home’s temperature is unstable when you have a faulty thermostat.

The malfunctions of thermostats include early or late heating cycles and fluctuation of heating temperature. You’ll be spending between $85 and$305 to repair a faulty thermostat.

Water Leakage

You’ll need between $240 and $1050 to repair water leakage in your furnace. Your furnace type is a major determinant of how much to fix your furnace leakage. Additionally, the level of your furnace efficiency determines how long its repair will take.

Blower Motor Faults

Air moving through furnace air ducts is the responsibility of the blower motor/fan. A dirty air duct can lead to blower motor damage. Meanwhile, the blower motor will cost $150 to $450 to repair.

Flame Sensor Damage

The flame sensor needs repair once it starts making the furnace frequently go off and on. Clog and other forms of filth usually cause the flame sensor to act this way. In modern furnaces, igniting the burners is a function of the surface of ignition.

Importantly, the cost to repair a furnace flame sensor averages between $90 and $300.

Ball-bearing Fixing

A faulty ball-bearing can make the furnace emit an annoying sound. Meanwhile, ignoring the sound can backfire. If you don’t repair them immediately, faulty signs surface.

Unfortunately, the backfire will most likely mean paying more intensively than you’d have if you had taken action earlier.

Averagely, repairing faulty ball bearings costs between $105 to $255.

Heat Exchangers Damage

The heat exchangers ensure the heating of the air in circulation in your home. The presence of carbon monoxide does this heating. Thus, carbon monoxide slipping through a crack in your heat exchanger means a drop in your furnace’s efficiency. It is also harmful to you.

Simply attach a carbon-monoxide detector to your furnace to immediately notice any possible crack. Also, the cost to repair a furnace’s heat exchanger lies between $105 to $205.

Motor Belt Faults

Your furnace will let out a squeaky noise if its motor belt is slack, slipping, or spoilt. A motor-belt repair is usually seamless and takes little time.

Repairing a faulty motor belt shouldn’t exceed $255.

Gas Line Leakage

Heavy gas odour in the atmosphere shows that there’s a possible gas leak. Usually, gas leakage repairs cost between $550 and $800.

You should treat this issue as very urgent if you ever experience it. Firstly vacate the premises and contact a professional technician to check it out.

Circuit Board Damage

Your furnace shouldn’t emit cold air. Therefore, there’s a likely problem with your circuit board when you start feeling cold air from your furnace. In this case, it could also be that your flame sensor is faulty. Regardless, your technician will help with the exact diagnosis.

Repairing a circuit board will cost around $600 to $800.

Faulty Draft Inducer Motor

The draft inducer motor isn’t a popular part of the furnace. But its importance is indisputable. It is the responsibility of the draft inducer motor to pull combustion gas into the heat exchanger. In addition, it helps combustion exit through the exhaustion chimney.

Unlike other parts, it costs less to repair a draft inducer motor. $520 to $720 should finish the repair.

Other furnace parts and their repair costs include:

  • Thermocouple: $110 to $250
  •  Blower motor capacitor: $160 to $450
  • Relay switch: $160 to $300
  • Gas valve: $250 to $1000
  • Transformer: $150 to $175
  •  Oil combustion chamber: $250 to $600
  • Evaporator and condenser coil: $620 to $2000
  • Flue pipe: $430 to $800

Sometimes, repairing the furnace parts may prove impossible. The elements may be worn-out, burnt, or simply dead. Thus, you’ll have to replace these parts.

The following are the costs of replacing some crucial furnace parts:

Blower Motor Replacement

This part of the furnace helps air course through the air ducts. Meanwhile, ‘squirrel cage’ is another name for the blower motor. Poor maintenance can easily lead to permanent damage to the blower motor. Thus, constant cleaning will keep the engine in good shape for a very long time. Or else, you’ll need up to $1600 for a replacement.

Gas Valve Replacement

This element in the furnaces is the pathway for gas or propane to reach the HVAC unit. This valve determines when to cut off the gas supply. You’ll be spending between $220 and $650 to get a replacement.

Heat Exchanger Replacement

The heat exchanger in the furnace produces the heat in circulation in your room. Unfortunately, this part experiences damage when it has been in use for too long.

The damage usually features a crack or cracks that release carbon monoxide into your space. You may need a CO detector to detect this emission.

It’ll cost between $500 to $1500 to replace the heat exchanger.

Control And Circuit Board Replacement

This part is the management part of your furnace. Thus, you’ll need to replace it once it stops working. Top-tier circuit boards cost between $500 and $650. Cheap ones range between $80 and $250.

Draft Inducer Motor Replacement

This element in the furnace helps gases into the heat exchanger. It primarily ensures that carbon monoxide doesn’t accumulate in the heat exchanger.

Replacement of only the fan blade will cost around $24. But a replacement of the whole draft inducer motor can cost as much as $1600.


A lot of people experience problems with this component of the furnace. Usually, the ignitor eventually works. But you may have to change it if its inactivity persists. It costs between $250 and $500 to replace an ignitor.

Thermocouple Replacement

The thermocouple monitors the pilot lights and stops the gas supply once it detects off lights. The average replacement cost for a thermocouple is $250.

Coil Replacement

The cost to replace a furnace coil can get as high as $2500. However, you can get brands that sell as low as $600.

Coil Replacement

Fuel Pipe

The fuel pipes help channel carbon monoxide out of your space. The length you want determines the price you’ll pay. Price range should be between $250 to $820.

Replay Switch

This furnace component is peculiar to electric furnaces. It particularly ensures that furnace parts receive electrical signals. Replacement costs lie between $150 and $300.

Flame Sensor Replacement

The flame sensor monitors flame presence. It shuts off gas in the absence of flame and turns gas on when it is available. You’ll need to clean it constantly to use it for a long time. Flame sensor replacements don’t exceed $260.

Combustion Chamber Replacement

This chamber produces heat to warm up your home. It helps use oil optimally and reduces the cost of energy consumption. Replacing a combustion chamber will cost between $250 and $650.

Transformer Replacement

Furnace transformers process the electricity into the voltage which the furnace needs. Replacing this element costs between $20 to $40.


You’ll be able to change your thermostat within $500-$600.

Filter Replacement

Getting a new filter will cost around $30.

Related Article: What Should You Not Keep around a Furnace?


You may need up to $5000 to purchase a new standard furnace. Meanwhile, repairing a faulty furnace costs between $132 and $460. This price variance shows the cost to repair a furnace can’t compare to that of replacement.

In addition, furnace repair pricing may differ depending on many factors. The need to replace a furnace component is one of them.

Meanwhile, you may feel you can repair your faulty furnace yourself. However, the professionalism of a furnace repair technician is undeniable.

Are you asking where and how much to hire a furnace technician in Toronto? ALP Heating offers the best hands-on deck for your furnace repair needs at affordable prices.

Reach out to us to book your furnace repair today.

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