Gas furnace
Lennox ML296V
96% AFUE, two-stage, variable-speed blower, 45,000 to 110,000 BTU
20-year limited heat exchanger warranty
Furnace Repair · Toronto
Furnace Repair in Toronto for Semis, Bungalows and Townhomes
Emergency calls evenings, weekends and holidays
Furnace repair in Toronto usually starts in a small basement, under the stairs, with a furnace that has been heating an old brick house for a long time. Our TSSA-certified gas technicians diagnose the fault, put the price in writing, and fix it, and if the furnace is at the end of its life we say so plainly.
- TSSA-certified gas technicians, every major furnace brand
- Written repair price before any part comes off the truck
- Emergency furnace repair evenings, weekends and holidays
- Honest repair or replace advice, with financing if it is time
Voted Best Company 2019 to 2021 · Authorized Midea, Lennox, Kepler & Rinnai dealer, plus Goodman · 20+ years
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Furnace problems we repair across Toronto
The symptom you notice, the cause we usually find in Toronto houses, and what we do about it.
No heat during a January cold snap and the house is a century semi
Old brick with little insulation drops temperature fast, so there is no time to wait. The usual culprits are a cracked hot surface ignitor, a flame sensor coated in oxide, a stuck pressure switch or a failed inducer motor. We carry the common parts and take emergency calls evenings, weekends and holidays.
The furnace is wedged into a closet-sized room under the stairs
Half the furnaces in Leslieville and Riverdale live in a space you cannot stand up in. We work in tight spots every week, and while we are in there we check combustion air, clearances and the vent run, because a cramped furnace room hides problems that cause repeat failures.
The furnace runs all night but the top floor never warms up
That is rarely the furnace. Hundred-year-old ductwork, a single return in the hallway and closed dampers starve the upper floors. We measure static pressure and temperature rise, balance the dampers and tell you if a ductless head upstairs is the smarter fix than a bigger furnace.
Short cycling in a post-war Scarborough or Etobicoke bungalow
Many of these bungalows got a furnace sized for a house twice the size. It heats the air near the thermostat, trips the high limit and shuts off. We confirm the cause with real readings, fix the limit, filter or airflow fault, and note the oversizing for when you replace.
Water pooling around a high-efficiency furnace in winter
A condensing furnace makes litres of acidic water every day. In a cold Toronto basement the trap or drain line plugs or freezes, and the furnace shuts down on a pressure switch fault. We clear the trap, re-route the drain and check the side-wall vent for ice.
Old chimney, mid-efficiency furnace, and soot or a sharp smell
An 80% furnace venting into an unlined brick chimney can back-draft, and that is a carbon monoxide risk. We inspect the heat exchanger, test CO at the registers and check the chimney liner. If the flue is failing, a sealed-combustion high-efficiency furnace vents out the wall and solves it for good.
Your basement tenant has no heat and you are the landlord
Toronto's property standards require landlords to keep rentals at a minimum of 21°C through the heating season, so a dead furnace is a problem today. We book it as an emergency, get heat back if the part allows, and give you a written record for your tenant file.
An error code is flashing on a brand you have never heard of
Toronto basements hold every furnace sold in Ontario in the last 30 years. Our techs read the flash code, confirm it with meter readings rather than trusting the board, and quote the repair before touching anything.
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 furnace repair costs in Toronto
Repairs are quoted in writing after diagnosis, because the price depends on the part. If a replacement makes more sense, you see that number beside the repair.
| Service | Typical price in Toronto |
|---|---|
| Furnace repair Diagnostic visit plus common parts such as ignitors, flame sensors and capacitors | Quote after diagnosis |
| High-efficiency furnace, installed Lennox ML296V or Midea MGH96, 96% to 97% AFUE, two-stage variable-speed | From $3,300 |
Installed pricing depends on size and installation requirements, and every job gets a written, guaranteed quote. Qualifying cold-climate heat pumps can bring back up to $7,500 through the Home Renovation Savings Program, and financing runs 0% for 3, 6 or 9 months on approved credit.
How a Toronto furnace repair call works
No guessing on the phone, no pressure in the basement.
- 1
Tell us what the furnace is doing
Call 1-647-694-5845 or send the form. Short cycling, clicking, a code, a smell. If anyone vulnerable is in the house without heat, say so and we treat it as an emergency.
- 2
Diagnosis in your furnace room
A TSSA-certified gas technician tests the ignition sequence, safety switches, blower and venting with a meter, and finds the actual fault rather than the first thing that looks worn.
- 3
Written quote, repair and replace side by side
You get the repair price in writing. If the furnace is old or the part is a big one, you get a replacement price too, with financing and the rebate for a hybrid heat pump setup where that fits.
- 4
Repair, test and tidy up
Most repairs are done the same visit from parts on the truck. We run a full heating cycle, check temperature rise and CO, and leave the furnace room cleaner than we found it.
Furnaces we install when a Toronto repair is not worth it
Two-stage, variable-speed furnaces from Lennox and Midea, all 96% AFUE or better. The smaller 45,000 BTU models suit a semi or townhouse far better than the oversized units we pull out.
Gas furnace
Lennox EL297V
97% AFUE, two-stage, variable-speed blower
20-year limited heat exchanger warranty
Gas furnace
Midea MGH96
96.5% AFUE, two-stage, variable-speed, 60,000 to 120,000 BTU
Registered warranty, up to 12 years parts and labour on select systems
Gas furnace
Goodman GMVC96
Up to 96% AFUE, two-stage, variable-speed ECM blower, 40,000 to 120,000 BTU/h input
10-year parts and unit replacement limited warranties when registered online
What a Toronto furnace repair visit includes
Every repair call gets the full look, because a furnace that failed once usually has a second problem waiting.
- Flash code read and confirmed with voltage, pressure and amp readings
- Ignitor, flame sensor, pressure switches and limit switches tested in sequence
- Heat exchanger inspected and carbon monoxide measured at the supply registers
- Blower motor and capacitor tested, filter checked, static pressure measured
- Condensate trap and drain cleared on high-efficiency models
- Venting and chimney checked for blockages, sag and back-drafting
- Gas pressure checked against the manufacturer's plate
- Written quote before the repair, and a written record of every reading after
Why old Toronto ductwork is often the real furnace problem
A surprising share of furnace repair calls in Toronto trace back to the ducts, not the furnace. Homes in the Annex, High Park and East York were ducted decades ago for gravity furnaces or a 60% unit, with big supply trunks and almost no return air. Put a modern blower on those ducts and the static pressure climbs. The high limit trips, the blower motor runs hot, and parts fail years early.
So before we replace the same blower motor twice, we measure. If the return side is starved, adding a return or enlarging the hallway grille is often cheaper than the part you keep paying for. If the trunk is leaking into the basement, sealing it brings the upstairs back to life and cuts your Enbridge bill at the same time.
- Static pressure measured on every repair call
- Return air fixed before parts are blamed
- Temperature rise checked against the furnace rating
- Duct advice written into the quote, never upsold on the spot
For how furnace repair works everywhere we serve, see our furnace repair and tune-up page for Ontario. For everything else we do in the city, start at HVAC in Toronto.
What it costs, and how we keep it lower
Guaranteed pricing
Your quote is your final price. No surprise extras on the agreed scope of work.
Rebates up to $7,500
Cold-climate heat pumps may qualify through the Home Renovation Savings Program. We confirm eligibility and file the paperwork.
0% financing
Interest-free for 3, 6 or 9 months, or open loans from 2.99% on approved credit.
Up to 12 years parts and labour
Extended warranty on select systems when registered.
Want the real number for your home?
A guaranteed quote takes one visit. Rebate and financing options come with it.
What Toronto homeowners can expect: our customers in their own words
Rated 4.5 on Google and voted Best Company 2019, 2020 and 2021 on HomeStars.
4.5Google rating from verified customers
We had a heat pump/AC unit installed by EHI, on time, on budget, great workmanship. Julian and team were knowledgeable and courteous. Dustin communicated well and is managing our government rebate for the new efficient system. Thank you Team!
Replaces our AC with a new heat pump in Ottawa and the whole experience was outstanding. From the first call, Dustin was incredibly responsive and communicated clearly every step of the way. He cut through all the usual sales fluff and got straight to what mattered — options, costs, timelines, and what made the most sense for our home. They addressed every concern I had, explained the details discussed my technical questions, and handled the installation quickly and professionally. The quality of the work is excellent, everything was done cleanly, and the system has been running perfectly since. Pricing was fair and transparent, and there were no surprises. It’s rare to find a company that combines speed, honesty, and solid workmanship like this. Highly recommended.
Recently got a shiny new heat pump installed. Went very well, nice unit and it works soooo quietly. These fine folks were very easy to deal with, professional and thourough. Would highly recommend.
Efficient Home Improvements truly went above and beyond. Our furnace failed on Christmas Eve in Ottawa, and their team stayed up late (3:00am) that night to replace it. Their responsiveness, professionalism, and dedication during the holidays were exceptional. The work was completed efficiently, and everything was explained clearly. It’s rare to find a company willing to sacrifice their own holiday time to ensure a customer’s home is warm and safe. I highly recommend Efficient Home improvements to anyone in need of reliable and compassionate service.
I recently had a new furnace and tankless water heater installed by this company. Excellent service by both office and technicians , I highly recommend!
The Installers were great.. Got in and got the job done..the furnace works amazing compared to the old one !!! Need a furnace..A/C water tankless system..there your guys!!!!
Had a tankless water heater installed and couldn’t be happier. The installation was quick, professional, and the system works great — endless hot water and more efficient than my old tank. Highly recommend!
Dustin and his team were really responsive and helpful in getting us a new heat pump to replace our broken AC unit. The team went above and beyond helping us through the process and answering other questions about the house we recently moved in to. I would highly recommend Efficient Home Improvements for any of your HVAC needs.
Licensed HVAC Contractor · Serving Ontario for 20+ Years
Proudly Serving Toronto, Ontario
EHI Heating And Cooling has kept Ontario homes and businesses comfortable for more than 20 years. Our licensed crews come to your home or business anywhere in Toronto, with a written, guaranteed quote before any work starts.
- ServingToronto, Ontario
- Phone1-647-694-5845
- Emailefficienthomecomfort@gmail.com
Business 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 evenings, weekends and holidays.
More HVAC help in Toronto and nearby
Other cities in Toronto and York Region we serve
Every city gets the same licensed crews, guaranteed pricing and rebate paperwork. Pick yours for local details.
- ScarboroughHVAC services
- North YorkHVAC services
- EtobicokeHVAC services
- MarkhamHVAC services
- Richmond HillHVAC services
- VaughanHVAC services
- ThornhillHVAC services
- WoodbridgeHVAC services
- AuroraHVAC services
- NewmarketHVAC services
- King CityHVAC services
- StouffvilleHVAC services
- East GwillimburyHVAC services
- GeorginaHVAC services
Frequently asked questions
How much does furnace repair cost in Toronto?
Furnace repair in Toronto is quoted in writing after diagnosis, because the price depends on the failed part. Ignitors, flame sensors and capacitors sit at the low end, while blower motors, inducer motors and control boards cost more. If a replacement is the better call, a new high-efficiency furnace starts at $3,300 installed and we quote both.
Do you offer emergency furnace repair in Toronto?
Yes. We take emergency furnace repair calls in Toronto evenings, weekends and holidays. Call 1-647-694-5845, tell us the symptom and whether anyone vulnerable is in the home, and we will tell you honestly when a technician can be there.
Why is my furnace not heating the upstairs of my Toronto semi?
A furnace that heats the main floor but not the upstairs usually has a ductwork problem: not enough return air, leaky trunks or closed dampers. We measure static pressure and balance the system, and in many century semis a ductless head on the top floor is the better fix than a bigger furnace.
Should I repair or replace a 20-year-old furnace in Toronto?
A 20-year-old furnace with a small fault such as a flame sensor is worth repairing. If the repair is a heat exchanger, control board or blower motor, replacement usually wins, because a 96% AFUE two-stage furnace cuts gas use and starts a fresh warranty. We give you both prices in writing so the decision is yours.
Is a furnace tune up worth it in Toronto?
Yes. An annual fall tune up catches the dirty flame sensor, plugged condensate trap and weak capacitor that turn into January emergencies, and most manufacturers require it to keep extended warranty coverage valid. It also includes a carbon monoxide test, which matters in older homes with brick chimneys.
Can I get financing or a rebate if my furnace repair turns into a replacement?
Yes. Financing runs 0% interest for 3, 6 or 9 months on approved credit, with open loans from 2.99% OAC. If you pair the new furnace with a cold-climate heat pump as a hybrid system, an Enbridge gas-heated Toronto home can commonly receive up to $2,000 through the Home Renovation Savings Program, with pre-approval in place before installation.
Page reviewed and updated October 27, 2026. Prices, rebates and program terms are checked at each update.