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!
Mississauga · Peel Region
Mississauga HVAC Contractor for Furnace and AC Replacement
Out with the original equipment, in with a system that keeps up
A lot of HVAC in Mississauga is still the furnace and air conditioner the house came with, or the pair installed back in the 1990s. We replace tired equipment with high-efficiency furnaces, central air and cold-climate heat pumps, and we add ductless units to the sunrooms and basements the old system never reached. Your price is written down and guaranteed before we begin.
- Replacement quotes that compare furnace, AC and heat pump options
- Ductless add-ons for sunrooms, additions and basements
- Licensed refrigeration techs for every AC and heat pump job
- Permits, warranty registration and rebate paperwork included
- From $3,300Furnace replacement, installed
- Up to $7,500Heat pump rebate
- 20+ yearsHVAC experience
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Signs it's time to call an HVAC company in Mississauga
Original equipment rarely fails all at once. It drops hints first. Here are the ones we hear about most, and what we do about each.
The AC runs all afternoon and the house still sits at 26°C
A low refrigerant charge, a dirty coil or a unit that was undersized from day one are the usual suspects. We test charge and airflow first. If the unit still runs on R-22, a refrigerant being phased out and costly to top up, replacing it is usually the smarter spend.
The sunroom is useless in January and again in July
Glass rooms lose heat fast, gain it fast, and are rarely on the main ducts. A single-zone ductless mini split heats and cools the room on its own, so you can finally use it year round.
The basement feels damp and chilly with the furnace running
Lakeshore dampness and a basement with one or two supply registers make a cold, clammy space. We look at returns and airflow, and a ductless unit can add heat, cooling and dehumidification just for that level.
The furnace is the one that came with the house
A furnace from the 1970s or 1990s is often a single-stage, mid-efficiency unit near the end of its working life. A two-stage, variable-speed model at 96% to 97% AFUE burns less gas and holds a steadier temperature, from $3,300 installed.
Indoor air feels sticky even when the AC is on
An oversized air conditioner cools the air quickly and shuts off before it pulls the moisture out. A properly sized, variable-speed system runs longer at lower speed, which is what dries out a muggy lakeshore summer.
The upper level of your backsplit is always a few degrees off
Split-level homes have long, uneven duct runs. We measure static pressure, balance the dampers, add returns where rooms are starved and pair the new equipment with a variable-speed blower.
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 Mississauga homeowners pay for furnace, AC and heat pump work
Original equipment in 1970s and 1990s homes is the usual job. The table shows our starting prices; your written quote fills in the rest.
| Service | Typical price in Mississauga |
|---|---|
| Furnace repair Diagnostic visit plus common parts such as ignitors, flame sensors and capacitors | Quote after diagnosis |
| AC repair Diagnostic visit plus common parts such as capacitors, contactors and refrigerant leak repair | Quote after diagnosis |
| High-efficiency furnace, installed Lennox ML296V or Midea MGH96, 96% to 97% AFUE, two-stage variable-speed | From $3,300 |
| Central air conditioner, installed Lennox or Midea, sized from a heat-gain calculation | Written quote |
| Cold-climate heat pump, installed Midea EVOX G3 or Kepler, 2 to 5 ton, rated to -30°C | From $5,500 |
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 we see inside Mississauga homes
The age of a house tells us a lot before we even open the furnace room door.
- 1960s and 1970sBungalows and backsplits
Clarkson, Cooksville and Port Credit have plenty of these. Ducts are often small and short on return air.
- 1990sSubdivision homes
Many houses in Meadowvale and Erin Mills still run equipment from that era, well past a typical service life.
- ClimateLakeshore humidity
Muggy summers and damp winters mean moisture control matters as much as the number on the thermostat.
- UtilitiesAlectra Utilities and Enbridge Gas
We compare your Alectra hydro rates with your Enbridge gas use when you weigh a heat pump against a furnace.
Replacing old equipment without tearing out what still works
Replacement does not have to mean starting from scratch. In most Mississauga homes the ductwork is sound, the gas line is fine and the electrical panel has room to spare. What has worn out is the equipment hanging off them.
So we check the house before we price anything. Then we lay out the realistic choices: a new furnace and central AC, a cold-climate heat pump paired with a gas furnace as backup, or an all-electric heat pump with an air handler. You see the cost, the efficiency and the rebate for each one.
Here is what we look at on that first visit:
- Duct size, static pressure and return air in every main room
- Electrical panel capacity for a heat pump and its 240V circuit
- A venting route for a high-efficiency furnace
- Where the condensate drain can go
- Whether a ductless head would cover the sunroom or basement better
How an HVAC technician in Mississauga plans your replacement
You should know exactly what you are buying, and why, before anyone unbolts the old unit.
- 1
Walk the house with you
We note the hot and cold rooms, check the ducts and panel, and measure for a Manual J heat-loss calculation.
- 2
Show the options side by side
Two or three choices, each with model numbers, AFUE or SEER2 ratings, rebate estimates and one guaranteed price.
- 3
Swap the equipment in a day or two
We pull the permits, remove the old unit, install and commission the new one, and leave the furnace room clean.
- 4
Hand over the paperwork
Warranty registration, thermostat setup and any rebate forms are done before we call the job finished.
Get heating and cooling in Mississauga that finally keeps up
An old system does not just cost more to run. It costs you the sunroom you can't sit in, the basement nobody uses and the July nights spent on top of the covers.
Tell us the age of your furnace and AC and which rooms bother you. We will come back with a plan and a price that does not change.
- Guaranteed final price for the agreed scope
- TSSA-certified gas techs and licensed refrigeration techs
- Up to 12 years parts and labour on select systems
- 0% financing for 3, 6 or 9 months on approved credit
Recent replacements from our Ontario crews
A sample of recent Ontario jobs, from furnace rooms to outdoor units. This is the finish a Mississauga home can expect.
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.
Mississauga service pages
Detailed local pages for the work we do most often in Mississauga.
Heat pump installation in MississaugaCold-climate heat pumps, rebates and sizing for local homesFurnace repair in MississaugaNo heat, short cycling, ignitors and blowers, quoted in writingAC repair in MississaugaWarm air, ice on the coil, leaks and tripped breakersHow to choose an HVAC company in MississaugaLicences to check, questions to ask, red flags and a quote checklist
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
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.
We also serve communities near Mississauga
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 long does a furnace usually last in a Mississauga home?
Most gas furnaces last roughly 15 to 20 years with regular maintenance. If yours is original to a 1990s Meadowvale or Erin Mills house, it is worth pricing a replacement before it fails.
Can I replace just the AC and keep my old furnace?
You can, but it is not always the best value. The new coil has to match the furnace blower, and when the furnace is also near the end of its life, replacing both together saves a second install visit.
What is the best way to heat and cool a sunroom?
A single-zone ductless mini split is usually the best fit. It mounts on the wall, needs no ductwork and runs on its own controls, so the room stays comfortable in winter and summer.
Why won't my air conditioning in Mississauga keep the house cool?
The most common reasons are a low refrigerant charge, a dirty coil, poor airflow or a unit sized wrong from the start. We test each one and tell you whether repair or replacement makes more sense.
Can a Mississauga HVAC contractor reuse my existing ductwork?
Usually, yes. We check duct sizes and static pressure, and if the ducts are sound the new system connects to them, with weak spots such as missing returns fixed before we finish.
Do Mississauga homeowners qualify for heat pump rebates?
Many do. Homes heated by electricity, oil or propane can get up to $7,500 for a qualifying cold-climate heat pump through the Home Renovation Savings Program, while Enbridge gas-heated homes get a smaller amount, commonly up to $2,000. Pre-approval has to be in place before installation, and our team files the forms.
Page reviewed and updated October 27, 2026. Prices, rebates and program terms are checked at each update.