Quick answer
Furnace Repair & Maintenance in Toronto typically costs $150 – $550 for labour and common parts, plus a $99 – $180 diagnostic visit, before 13% HST (estimated GTA market ranges). BrightOak Appliance Repair serves Toronto and the GTA, open daily 7:00 AM – 10:00 PM, and confirms your price after diagnosis.
Furnace Repair & Maintenance overview
A furnace that quits during a Toronto cold snap quickly becomes urgent. BrightOak provides gas furnace repair, maintenance, tune-ups and inspections for mid- and high-efficiency furnaces in houses, townhomes and basements across the city.
Most no-heat calls come down to a handful of components: the igniter, flame sensor, pressure switch, inducer motor or a blocked condensate line. Careful testing finds the real cause before anything is replaced.
Common furnace problems and symptoms
Furnace not igniting
A cracked hot-surface igniter, dirty flame sensor, failed gas valve or pressure-switch fault can stop ignition entirely.
Short cycling
A furnace that starts and stops repeatedly may have a dirty flame sensor, restricted airflow, an overheating heat exchanger or a thermostat issue.
Blowing cold air
Ignition lockouts, a tripped limit switch or a blocked condensate drain can leave the blower running without heat.
Loud banging or squealing
Delayed ignition, worn blower bearings or a failing inducer motor produce unusual noises that should be checked.
Error light flashing
Furnace control boards flash fault codes. We read the code and test the associated component.
High gas bills or uneven heat
Dirty filters, poor combustion and blower problems reduce efficiency and comfort.
How we diagnose and repair your furnace
Our visit covers thermostat and control checks, ignition sequence testing, flame sensor cleaning, pressure switch and inducer tests, condensate drain inspection, filter and airflow checks, and a visual heat exchanger and venting inspection.
Common repairs include igniter, flame sensor, pressure switch, inducer motor, blower motor and capacitor replacement, plus control board repair. Annual tune-ups help prevent most of these failures.
Furnace components we commonly service
- Hot-surface igniter
- Flame sensor
- Gas valve
- Pressure switch and inducer motor
- Blower motor and capacitor
- Limit switches
- Control board
- Condensate trap and drain
Furnace services we offer
- Electric Furnace Repair
- Emergency Furnace Repair
- Furnace Blower Motor Repair
- Furnace Blowing Cold Air
- Furnace Filter Replacement
- Furnace Flame Sensor Cleaning
- Furnace Igniter Replacement
- Furnace Inspection
- Furnace Installation
- Furnace Maintenance
- Furnace Making Noise
- Furnace Not Turning On
- Furnace Repair
- Furnace Repair Near Me
- Furnace Repairs
- Furnace Replacement
- Furnace Safety Inspection
- Furnace Service
- Furnace Short Cycling
- Furnace Tune Up
- Furnace Will Not Ignite
- Gas Furnace Service
- Gas Furnace Service Near Me
- High Efficiency Furnace Repair
Repair or replace?
Gas furnaces commonly last 15 to 20 years. Ignition, sensor and motor repairs are usually economical.
A cracked heat exchanger or repeated major failures on an older furnace often make replacement the safer choice. We explain the findings clearly.
Our furnace service process
- Step 1
Share the details
Tell us the brand, model and what the appliance is doing. Photos of the model label help us prepare.
- Step 2
Diagnosis on site
Our technician confirms the symptom and tests the components involved rather than guessing.
- Step 3
Clear estimate
You receive a plain-language explanation and a price before any repair begins.
- Step 4
Repair and test
Approved repairs are completed and the appliance is run through a test cycle before we leave.
Why choose BrightOak for furnace service
BrightOak focuses on a careful diagnosis, honest recommendations and clear communication. We explain what we find in plain language, give you a price before any work starts, and tell you when a repair is not worth the money. We work on furnace repair & maintenance for a wide range of appliance brands, from everyday models to premium built-ins.
Booking a furnace tune-up in early fall, before the first cold nights, avoids the peak winter rush in Toronto.
Average furnace repair pricing in Toronto
The ranges below reflect estimated GTA market pricing for furnace repair & maintenance. For a full comparison across appliances, see our pricing page.
Furnace Repair & Maintenance: Estimated GTA Market Ranges
CAD · before tax- Diagnostic / service call
- $99 – $180
- Repair (labour + common parts)
- $150 – $550
- Parts & materials
- $40 – $600 (igniters, sensors, motors, boards)
- Installation
- $4,000 – $8,500 (new high-efficiency furnace)
- Applicable taxes
- 13% HST added in Ontario
What affects the price
- Appliance age, model and brand tier
- Whether the fault needs a replacement part
- Part availability and shipping time
- Access (built-in, stacked or tight spaces)
- Furnace efficiency rating and venting
- Seasonal demand
Had your furnace serviced by BrightOak?
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Furnace Repair & Maintenance FAQs
Check the thermostat, filter, breaker and furnace switch first. If those are fine, the igniter, flame sensor or pressure switch is a common cause.
