Auto Mechanics | Services | Heater Core Replacement

HEATER CORE REPLACEMENT & REPAIR

Fix heating issues and interior coolant leaks with expert heater core repair and replacement.

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Heater Core Replacement

Our heater core repair process involves taking out your interior heater core box, removing the old heater core and installing the new one. We know that this can be a tough job because it requires taking apart most of the front end of your car to get to the inside of the heater box. But our process is quick and efficient so you don't have to worry about being without your heat during the cold season. There are several symptoms that may indicate the need for a heater core replacement, including:

No heat or poor heat
Sweet smell of antifreeze
Foggy windows (interior cabin)
Heater core coolant leak (interior cabin)

Symptoms For Heater Core Repair:

Weak or No Heat: The heater may blow cool or lukewarm air, even when the engine is running and the heater is on.
Foggy Windows: A failing heater core can cause the windows to fog up because of the moisture it releases.
Coolant Leaks: You might notice puddles of coolant inside the car, often under the dashboard.
Sweet Smell: A sweet, syrupy odor inside the cabin can indicate coolant leaking onto the heater core.
Overheating Engine: If the heater core is blocked or leaking, it can impact engine cooling, causing overheating.

Our Heater Core Repair Process:

Diagnose the Issue: We verify that the symptoms are indeed related to the heater core. Check for leaks, and inspect coolant levels and temperature.
Drain Coolant: We drain the engine coolant from the system to prevent spills.
Remove Dashboard Components: The heater core is typically located behind the dashboard, so remove various panels and parts is necessary to access it.
Replace the Heater Core: We disconnect the old heater core from the heater hoses and remove it. Then, we install the new heater core.
Reassemble and Refill: We reinstall the dashboard components, refill the cooling system with new coolant, and check for leaks.
Test the System: We run the engine and turn on the heater to ensure that it’s functioning properly and that there are no leaks.

heater core replacement replacement warning indicator

Can a Heater Core Be Repaired or Needs Replacing?

Typically, deep underneath your dashboard and firewall, lives your car's heater core. If a heater core has gone bad, it may be possible to repair but highly likely needs a replacement. In either case, a heater core repair requires removing the inner dashboard of your vehicle to access and is a complex and intense job. As such, when we replace a heater core it's also a good idea to replace the heater hoses attached to it.

A future problem with heater hoses will create similar problems to that of a heater core replacement and we want to ensure the job is only done once. As part of the replacement job, certain vehicles will need to have the air conditioning system recharged. Once we've inspected and diagnosed a heater core repair problem, we will advise whether this is required as a part of the heater core job for your vehicle.

If you are experiencing any heater core replacement symptoms, it is important to have your vehicle inspected. Ignoring a faulty heater core can lead to more serious problems down the line. The heating system is a closed loop; fresh water from the radiator cools off an electric pump and it gets sent through your heater core to be heated up before being sent out through your vents. This means if you have bad flow in this system, there is no way for the water to get hot enough to heat your car or in some cases, they can't get heated at all.

HEATER CORE SERVICE SPECIALISTS IN ONTARIO

🚩 Barrie Location

Let our experts provide heater core repair for your local drive in Barrie >>

🚩 Brampton Location

We specialize in reliable heater core repair for the city of Brampton >>

🚩 Burlington Location

Get expert heater core repair with our team in Burlington >>

🚩 Etobicoke Location

Count on our skilled heater core repair with our mechanics in Etobicoke >>

🚩 Hamilton Location

Our experts handle your heater core repair with precision in Hamilton >>

🚩 Kitchener Location

Need heater core repair? Our team offers fast service in Kitchener >>

🚩 Mississauga Location

Experience our professional heater core repair service in Mississauga >>

🚩 North York Location

Get the right experts for your heater core repair at our shop in North York >>

🚩 Toronto Location

Let our experts handle your heater core repair — we’re here to help in Toronto >>

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GET THE BEST HEATER CORE REPAIR FOR YOUR VEHICLE MAKE AND MODEL

We provide top-tier heater core repair services for a wide range of makes and models. Click your vehicle's make below to learn more about our specialized service for your model.

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HEATER CORE FAQS

What is a heater core?

The heater core is a small radiator located inside the dashboard of your vehicle. It heats the cabin by transferring heat from the engine’s coolant to the air blowing through the vents.

Can I temporarily fix a heater core leak?

You can use a radiator sealant as a temporary fix to stop minor leaks. However, this is not a permanent solution, and you should plan to replace the heater core as soon as possible.

Can a heater core be cleaned instead of replaced?

In some cases, a heater core can be cleaned if it’s clogged, but this is often not as effective as replacement. If the heater core is leaking or heavily damaged, replacement is usually necessary.

What causes heater core problems?

Clogging: Debris or rust can block the heater core, restricting coolant flow.
Leaks: Corrosion or damage can cause coolant to leak out of the heater core.
Air Pockets: Air trapped in the cooling system can affect the heater core’s performance.

How much does it cost to replace a heater core?

The cost varies depending on the vehicle make and model, as well as labor rates. On average, replacing a heater core can cost between $600 and $1,200, including parts and labor. Labor-intensive jobs and high-end vehicles may cost more.

Can I drive with a bad heater core?

While it's possible to drive with a faulty heater core, it’s not advisable. A leaking heater core can lead to engine overheating and further damage. Additionally, lack of proper heating and defogging can reduce visibility and comfort.