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 · Mississauga
Furnace Repair in Mississauga for Furnaces That Came With the House
Diagnosed with a meter, quoted in writing, fixed or honestly replaced
Furnace repair in Mississauga is often a visit to a unit from the 1990s, or one that is older than the kitchen. Our TSSA-certified gas technicians find the real fault, quote the fix in writing before touching a part, and tell you straight when a repair is money better spent on replacement. Evening and weekend slots are available across Mississauga and the rest of the GTA.
- TSSA-certified gas technicians for every furnace brand sold in Ontario
- Written repair price before any work starts
- Emergency furnace repair evenings, weekends and holidays
- Honest repair-or-replace numbers for older furnaces, side by side
Voted Best Company 2019 to 2021 · Authorized Midea, Lennox, Kepler & Rinnai dealer, plus Goodman · 20+ years
Our Brand Partners
Furnace repair calls we get from Mississauga homes
Older furnaces fail in predictable ways. Here is what you notice, what is usually behind it, and what our technician does about it.
The thermostat is calling but the furnace room is silent
On a 1990s furnace that is usually a failed ignitor or a pressure switch that will not close because the inducer motor is worn. We test the ignition sequence step by step and replace the part that actually failed, not the whole control board on a guess.
Furnace not heating on the first cold morning of the season
A furnace that sat idle all summer in a damp Mississauga basement often starts the fall with a corroded flame sensor or rusted burners. A cleaning and a gas pressure check fixes most of them in a single visit.
The upstairs bedrooms in your backsplit freeze while the main floor roasts
That is often not a furnace fault at all, but a blower that cannot push air through long, undersized ducts. We measure static pressure and temperature rise, test the blower motor and capacitor, and tell you whether balancing the dampers or a variable-speed blower is the fix.
It runs for a minute, shuts down, and tries again
Short cycling on an older furnace points to a clogged filter, a limit switch tripping on overheated air, or a cracked heat exchanger. Because the last one is a safety issue, we inspect the exchanger before we reset anything.
Water on the floor around a high-efficiency furnace
A condensing furnace makes a steady stream of acidic water all winter. A plugged trap, a sagging drain hose or a frozen outdoor vent backs it up. We clear and re-route the drain and check the venting for the slope that stops it happening again.
You smell gas, or the CO alarm went off
Leave the house and call Enbridge Gas's emergency line or 911 before you call us. Once it is safe, we test for leaks, inspect the heat exchanger and venting, and measure carbon monoxide at the registers before the furnace runs again.
The furnace is 25 years old and you are dreading the repair bill
Tell us the model and the symptom and we will say up front which failures are common on that unit. At that age, a blower motor, inducer or control board repair often lands close to the monthly payment on a new two-stage furnace from $3,300, so we put both numbers on the same sheet.
Your townhome furnace sits in a closet nobody can reach around
Furnaces in Churchill Meadows and Lisgar townhomes often share a tight closet with the water heater. Our techs work in those spaces every week, and if access is the real problem we say so and plan a layout the next service call can live with.
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.
Furnace repair cost in Mississauga, and what a new one runs
Repairs are quoted after diagnosis, because an ignitor and a heat exchanger are very different bills. A new high-efficiency furnace starts at $3,300 installed. Both numbers go in writing before any work.
| Service | Typical price in Mississauga |
|---|---|
| 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.
What a furnace repair visit in Mississauga looks like
No part gets replaced until you have seen the price and the reason.
- 1
Tell us the symptom
When you call or book online, describe what the furnace does and does not do, plus its age if you know it. That helps the technician arrive with the likely parts on the truck.
- 2
Diagnosis with a meter, not a guess
A TSSA-certified gas technician checks the thermostat call, reads the fault code, tests the ignition, flame, pressure and limit circuits and inspects the heat exchanger.
- 3
Price in writing
You see the repair cost before we open a parts box. On a furnace near the end of its life you also see what a new unit would cost, and the choice stays yours.
- 4
Repair, safety test, clean up
We fit the part, run the furnace through full cycles, test gas pressure and carbon monoxide, and leave the furnace room the way we found it.
If repair is not the answer: furnaces we install in Mississauga
When a repair bill on an original furnace no longer makes sense, these are the two-stage, variable-speed models we quote. Each connects to your existing ductwork and vents in PVC.
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 Mississauga furnace tune up covers
A fall tune up catches most of the failures we get emergency calls about in January. It also keeps most extended warranties valid.
- Combustion check: burner flames, gas supply and manifold pressure against the rating plate
- Ignitor and flame sensor cleaned, tested and replaced if the readings are out of range
- Heat exchanger inspected for cracks and rust, carbon monoxide measured at the supply registers
- Inducer motor, pressure switch and hose checked for the draft the furnace needs to light
- Blower wheel cleaned, motor amps and capacitor tested, temperature rise recorded
- Condensate trap flushed and drain line checked on high-efficiency models
- Vent pipes checked for slope, joints and blockage, including the outdoor terminals
- Filter replaced, thermostat checked, every reading written on your service record
Our repair-or-replace rule for original Mississauga furnaces
Here is the rule we use. If the furnace is under 12 years old and the fault is a single part, repair it and move on. Ignitors, flame sensors, capacitors and pressure switches are routine on any brand.
If the furnace is original to a 1990s Meadowvale house, or older, and the repair involves the blower motor, the inducer, the control board or the heat exchanger, we add up three things: the repair quote, the age, and what you pay Enbridge every winter. A mid-efficiency furnace from that era sends roughly a fifth of the gas it burns up the chimney. A new two-stage model at 96% or 97% AFUE keeps nearly all of it, and starts at $3,300 installed.
A cracked heat exchanger ends the conversation. We do not run a furnace with one, and neither should you.
Whatever you choose, you get both numbers on the same sheet. For the full list of symptoms we see across Ontario, read our furnace repair and maintenance page. For everything else in the house, start with our Mississauga HVAC page.
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 Mississauga 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 Mississauga, 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 Mississauga, with a written, guaranteed quote before any work starts.
- ServingMississauga, 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 Mississauga and nearby
Other cities in Peel and Halton we serve
Every city gets the same licensed crews, guaranteed pricing and rebate paperwork. Pick yours for local details.
Frequently asked questions
How much does furnace repair cost in Mississauga?
Furnace repair cost in Mississauga depends on the part, so we quote in writing after diagnosis and before any work. Common parts such as ignitors, flame sensors and capacitors sit at the low end, while blower motors, inducers and control boards cost more. If the furnace is near the end of its life we show a new furnace from $3,300 installed beside the repair price.
Do you offer emergency furnace repair in Mississauga?
Yes. We take furnace repair calls in Mississauga evenings, weekends and holidays. Tell us the symptom when you book, and we give you an arrival window we can actually keep rather than a promise we cannot.
Is it worth repairing a furnace from the 1990s?
Often, yes, if the fault is a small part and the heat exchanger is sound. If the repair is a major component, the furnace is over 20 years old or it has needed two repairs in two winters, replacement usually costs less over the next few years. We give you both prices and let you decide.
Can you repair my furnace if it is a brand you do not sell?
Yes. Our TSSA-certified technicians repair every major furnace brand sold in Ontario, and common parts such as ignitors, sensors, capacitors and pressure switches ride on the truck. A brand-specific part may need a second visit, which we tell you before you approve the repair.
How often should a furnace in Mississauga be tuned up?
Once a year, in early fall before the first cold snap. A damp basement in Clarkson or Port Credit is hard on burners and flame sensors, so an annual furnace tune up pays for itself in avoided breakdowns and keeps most extended warranties valid.
Can I finance a new furnace if the repair is not worth it?
Yes. If the diagnosis turns into a replacement, we offer 0% financing for 3, 6 or 9 months and open loans from 2.99% on approved credit. A replacement is also the moment to look at a heat pump and the Home Renovation Savings Program rebate, which we can check for you.
Page reviewed and updated October 27, 2026. Prices, rebates and program terms are checked at each update.