Best furnace repair near me in Oshawa
Ben Amina
Aire One East Heating & Cooling, Whitby, Ontario
When you need furnace repair in Oshawa, the two things that matter most are speed and a licensed technician, because a no-heat furnace in a Durham winter is a safety issue, not just a comfort one. Aire One East provides fast, licensed furnace repair across Oshawa with 24/7 emergency service, from downtown and the older south end to the newer subdivisions in the north. This page covers the problems we fix, what repairs typically cost, and when a repair is genuinely the wrong call. It links to our main furnace repair service.
The short answer: for furnace repair in Oshawa, call a licensed contractor with genuine 24/7 emergency service, since a no-heat call in winter cannot wait. Common repairs include a failed igniter, flame sensor, blower motor, or control board, most of which a technician can diagnose and fix the same day. A cracked heat exchanger is the one fault that usually means replacement rather than repair, for safety reasons.
Aire One East is a Carrier Factory Authorized dealer serving Oshawa and Durham Region since 1991, with TSSA certified technicians, Licence #1219734, a 4.8 star rating across 364 Google reviews, and around-the-clock emergency service. For furnace repair now, call 905-576-7600 or book online.
Common furnace problems we fix in Oshawa
Most no-heat calls come down to a handful of faults. A licensed technician can identify which one you have quickly, rather than guessing and replacing parts you do not need.
| Symptom | Likely cause | Urgency |
|---|---|---|
| No heat at all | Failed igniter, flame sensor, or control board | High |
| Furnace runs but no warm air | Blower motor or thermostat fault | High |
| Short cycling on and off | Dirty filter, flame sensor, or overheating | Moderate |
| Loud banging or grinding | Blower, bearings, or delayed ignition | Moderate to high |
| Headaches indoors, CO alarm | Possible cracked heat exchanger | Emergency |
If a carbon monoxide alarm sounds, treat it as an emergency and follow the safety steps below first.
What to check before you call
Being fair, not every no-heat problem needs a technician. Before you book, try these homeowner-safe checks, because two of them resolve a surprising number of calls at no cost.
- Thermostat: confirm it is set to heat, above room temperature, and that its batteries are good.
- Furnace filter: a badly clogged filter can shut a furnace down on overheating. Replace it if it is dirty.
- Breaker and switch: check the furnace breaker and the switch on or near the unit, which looks like a light switch and is sometimes turned off by accident.
- Furnace door: the panel must be seated properly, since a safety switch stops the furnace if it is open.
If those do not restore heat, stop there. Anything involving the burner, gas, venting, or the heat exchanger is licensed work in Ontario, so call a technician rather than going further.
When it is an emergency
A furnace that fails in extreme cold is urgent, especially for young children, older adults, and anyone with health conditions. If your home is losing heat quickly in deep winter, treat it as an emergency and call for same-day service. A suspected gas leak or a carbon monoxide alarm is always an emergency, and safety comes before any repair, as above.
Furnace repair costs in Oshawa
Repair pricing depends on the part and the diagnosis, so treat these as typical Oshawa ranges rather than a fixed quote. A technician confirms the exact cost after diagnosing the fault, and a good one explains it before doing the work.
| Repair | Typical Oshawa range (CAD) |
|---|---|
| Diagnostic or service call | $90 to $150 CAD |
| Flame sensor clean or replace | $100 to $250 CAD |
| Igniter replacement | $150 to $400 CAD |
| Blower motor or control board | $400 to $700 CAD |
| Gas valve or inducer motor | $300 to $650 CAD |
Typical Oshawa ranges in Canadian dollars (CAD), verified July 2026, subject to change. Exact pricing follows an in-home diagnosis.
Repair or replace
Honesty saves you money here. Under roughly 15 years of age and running well, a furnace is almost always worth repairing. Past 15 years, or when repeated repairs are stacking up, replacement starts to make more sense once you count efficiency gains and rebates. The one fault that overrides the age question is a cracked heat exchanger, which is a safety issue and usually calls for replacement regardless of age. A licensed technician confirms the heat exchanger condition during the diagnosis rather than guessing.
Why Oshawa homeowners choose Aire One East
- Fast local response, serving Oshawa as part of our core Durham Region area with 24/7 emergency service.
- Licensed and certified, with TSSA gas technicians, Licence #1219734, and Carrier Factory Authorized status.
- Honest diagnosis, we explain the fault and the cost before we do the work, and we tell you when replacement is the smarter call.
- 4.8 stars across 364 Google reviews, from real Durham homeowners.
- Family owned since 1991, with financing and protection plans available.
Read more about our furnace repair service, our indoor air quality options, or learn about our team.
Licensed technicians, honest diagnosis, and same-day furnace repair across Oshawa and all of Durham Region.
Frequently asked questions
How fast can you do furnace repair in Oshawa?
We offer 24/7 emergency service across Oshawa, so a genuine no-heat call typically gets a same-day or next-morning response depending on the time and conditions. Call 905-576-7600 and we will tell you honestly when we can reach you.
How much does furnace repair cost in Oshawa?
Most repairs fall between about $100 and $700 CAD depending on the part, on top of a diagnostic or service call of roughly $90 to $150 CAD. Common fixes like a flame sensor or igniter are at the lower end, while a blower motor or control board is at the higher end. Exact pricing follows an in-home diagnosis.
Is it worth repairing an old furnace?
Under roughly 15 years of age and running well, repair is usually the better value. Past 15 years, or with a cracked heat exchanger at any age, replacement is generally safer and often cheaper once you count efficiency and rebates. A technician confirms the heat exchanger condition during the diagnosis.
What should I check before calling for furnace repair?
Check that the thermostat is set to heat and above room temperature, replace a dirty filter, confirm the furnace breaker and nearby switch are on, and make sure the furnace door panel is seated. If heat does not return, stop and call a licensed technician, since anything involving gas or the burner is licensed work.
Do you serve all of Oshawa?
Yes. Aire One East serves all of Oshawa, from downtown and the south end to the newer north subdivisions, as part of our core Durham Region service area, with TSSA certified technicians and Licence #1219734.
Get your heat back in Oshawa
Furnace repair in Oshawa comes down to a fast response and a licensed technician who diagnoses honestly and tells you the truth about repair versus replacement. If your furnace is down, do not wait in the cold. Call Aire One East at 905-576-7600 for 24/7 service, or book online.
Related reading
- Furnace repair service (Durham Region)
- Best HVAC reviews in Oshawa
- How to choose the best HVAC company in Durham Region
- Indoor air quality services
Sources and references
- Technical Standards and Safety Authority (TSSA), Ontario fuels safety
- Electrical Safety Authority (ESA), Ontario
- City of Oshawa, permits and local services
Pricing and details verified July 2026 and subject to change.
