Furnace Repair, Maintenance & Tune-Up
Furnace Repair and Maintenance in Ontario
Same-Day Service, Quoted in Writing
Furnace not heating? EHI provides furnace repair and annual tune-ups across Ontario for every major brand, same day in most areas, written quote first.
- Same-day furnace repair in most Ontario areas
- TSSA-certified gas technicians, every major brand
- Written repair quote before work, no surprises
- Annual furnace maintenance that protects your warranty
Voted Best Company 2019 to 2021 · Authorized Midea, Lennox, Kepler & Rinnai dealer, plus Goodman · 20+ years
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Furnace repair problems we fix
What you notice, what's usually behind it, and what we do about it.
Furnace not heating at all
Check the thermostat, breaker and furnace switch first. If those are fine, it's often a failed ignitor, a stuck pressure switch or a dead control board. We test the full ignition sequence with a meter and replace only what's actually failed.
Blower runs but the air is cold
Burners aren't lighting, or the high limit switch is shutting them off because the filter or coil is blocking airflow. We check ignition, clean the flame sensor, test the limit and measure temperature rise.
Clicking, then nothing
That click is the ignitor or gas valve trying. A cracked hot surface ignitor or a flame sensor coated in oxide is the usual fix. Furnace ignitor replacement is a quick, stocked repair.
Furnace lights, then shuts off after a few seconds
Classic dirty flame sensor. The board can't prove there's a flame, so it closes the gas valve. We clean or replace the sensor and check the ground connection.
Short cycling every few minutes
A plugged filter, a failing limit switch, an oversized furnace or a bad thermostat location. We find the cause instead of just resetting the board.
Blower motor is loud, weak or dead
Furnace blower motor repair or replacement, including ECM and variable-speed motors. We test the capacitor and the motor's amperage before we recommend replacement.
Error codes on the furnace LED
Each flash pattern points to a circuit: pressure switch, limit, flame, ignition. We read the code, confirm it with real measurements and quote the fix in writing.
Burning smell, rumbling or a bang at start-up
Dust burn-off on the first fall start is normal for a few minutes. A rumble or bang means delayed ignition or dirty burners, which can crack a heat exchanger. Shut it off and call us.
CO alarm or headaches when the furnace runs
Leave the house and call 911 first. We then inspect the heat exchanger for cracks, check venting, and test carbon monoxide at the registers before the furnace runs again.
Sound familiar?
Describe the problem and we'll tell you what it usually is, what it costs to fix, and whether it's worth fixing.
What our furnace tune-up includes
Annual furnace maintenance in fall, before the first Ontario cold snap. One visit, about an hour, and most manufacturers require it to keep extended warranty coverage valid.
- Clean burners, flame sensor and ignitor; test ignition and flame rollout switches
- Inspect the heat exchanger for cracks and corrosion; test CO at the registers
- Check gas pressure and adjust to manufacturer spec
- Measure temperature rise and test the high limit switch
- Inspect and clean the blower wheel; test blower motor amperage and capacitor
- Clear the condensate trap and drain line on high-efficiency furnaces
- Inspect PVC or metal venting for leaks, sag and blockages
- Replace the filter, calibrate the thermostat and record every reading for your warranty file
How furnace repair works with EHI
- 1
Book same-day
Call or request service online. Tell us the symptom and your city. Evening and weekend slots are available.
- 2
Diagnose
A TSSA-certified tech reads the code, tests components with a meter and finds the root cause.
- 3
Written quote
You get the repair price in writing before we touch anything. If the furnace is near the end of its life, we include a replacement option.
- 4
Repair and safety check
Most repairs are done from parts on the truck. We run a full cycle and test the safety controls before we leave.
Our work · 2 photos
Furnaces we install and service
Real jobs by our licensed crews in Ontario homes. Tap a photo to see it full size.
Repair or replace your furnace?
If your furnace is under 10 years old and the fault is a single part, repair it. Ignitors, flame sensors, capacitors and pressure switches are routine and affordable.
If it's over 12 to 15 years old and the repair is a blower motor, control board, inducer motor or anything on the heat exchanger, run the numbers. In an Ontario winter, when a repair passes half the cost of a new 96% AFUE furnace, replacement usually wins on gas savings alone, and you start fresh on warranty.
We quote both. Compare with furnace installation from $3,300 or a high-efficiency furnace that cuts gas use for good.
Furnace repair and maintenance cost
Written quote after diagnosis
We state the diagnostic fee when you book and quote the repair in writing before any work. Simple parts like ignitors and flame sensors sit at the low end; blower motors and control boards cost more.
Annual tune-up
One fall visit keeps the warranty valid, cuts gas use and catches the small faults that become January emergencies. Ask for tune-up pricing when you call.
Every major brand
Lennox, Midea, Kepler, Goodman and other furnaces sold in Ontario. Common parts ride on the truck.
Financing if it's time to replace
0% for 3, 6 or 9 months on approved credit when the repair turns into a new furnace.
Want the real number for your home?
A guaranteed quote takes one visit. Rebate and financing options come with it.
Why Ontario homes and businesses choose EHI Heating And Cooling
20+ years in Ontario homes
We've installed through more January cold snaps and July heat waves than we can count. That experience shows up in the sizing, the ductwork and the little details.
Voted Best Company 2019 to 2021
HomeStars Verified. Our reviews come from real Ontario homeowners and business owners.
Authorized Midea, Lennox, Kepler and Rinnai dealer, plus Goodman
Factory-backed equipment, factory-backed warranties, and techs trained on the gear we install. We install and service Goodman too.
Guaranteed final pricing
The number on your quote is the number on your invoice. We may also beat comparable reputable quotes by up to 10%.
Rebate paperwork handled
Pre-approval, heat-loss calculation and documentation for the Home Renovation Savings Program. You just sign.
Licensed, certified crews
TSSA-certified gas technicians, licensed refrigeration techs and ESA-licensed electrical work on every job.
Ready when you are
Call us or send the form. Quotes are free, guaranteed and come with your rebate estimate.
HVAC service across Ontario
We're a service-area business. Our crews come to your home or business, from the GTA to Northern Ontario. Don't see your town? Call, we probably cover it.
Toronto and York Region
Simcoe, Muskoka and cottage country
Hamilton and Niagara
Southwestern Ontario
Eastern Ontario
Serving Ontario from our Stouffville office
Find us on Google, get directions, or check our hours. Our crews travel to your home or business across the province.
EHI Heating And Cooling (Efficient Home Improvements)
- Phone
1-647-694-5845 - Email
efficienthomecomfort@gmail.com - Service area
All of Ontario. See the cities we serve
Hours
- Monday8:00 am to 8:00 pm
- Tuesday8:00 am to 8:00 pm
- Wednesday8:00 am to 8:00 pm
- Thursday8:00 am to 8:00 pm
- Friday8:00 am to 8:00 pm
- Saturday8:00 am to 8:00 pm
- Sunday10:00 am to 5:00 pm
Emergency service available outside these hours.
- Office
4261 Bloomington Road, Whitchurch-Stouffville, ON L4A 3Y6
Frequently asked questions
Why is my furnace not heating?
A furnace that isn't heating most often has a thermostat, power or airflow problem, a failed ignitor, a dirty flame sensor or a tripped limit switch. Check the thermostat mode and batteries, the breaker, the furnace switch and the filter first, then call EHI for same-day furnace repair.
How much does furnace repair cost in Ontario?
Furnace repair cost in Ontario depends on the part. Flame sensors, ignitors and capacitors are low-cost fixes; blower motors, inducer motors and control boards cost more. EHI quotes every repair in writing after diagnosis so you know the price before work starts.
How often should a furnace be serviced?
A gas furnace should be serviced once a year, ideally in early fall before the heating season. Annual furnace maintenance keeps efficiency up, catches cracked heat exchangers and failing parts early, and is required by most manufacturers to keep extended warranty coverage.
What does a furnace tune-up include?
An EHI furnace tune-up includes cleaning the burners, flame sensor and ignitor, inspecting the heat exchanger, testing for carbon monoxide, checking gas pressure and temperature rise, testing the blower motor and capacitor, clearing the condensate drain, inspecting venting and replacing the filter.
Is a furnace blower motor worth replacing?
Yes, if the furnace is under about 12 years old and otherwise healthy. Furnace blower motor replacement is a common repair, including variable-speed ECM motors. On an older furnace we'll show you the replacement cost alongside the repair so you can decide.
How do I know if my furnace is leaking carbon monoxide?
You can't smell carbon monoxide, so a working CO alarm on every floor is the only reliable warning. Soot around the furnace, a yellow flame instead of blue, headaches when the furnace runs, or a CO alarm all mean leave the house, call 911 and then call us for a heat exchanger inspection.
Do you offer emergency furnace repair?
Yes. EHI offers same-day and after-hours furnace repair evenings, weekends and holidays across Ontario. See our emergency HVAC service page for what to check before you call.