Proudly Canadian
Home
Heating
Cooling
Heat Pumps
Air Quality
OtherHVAC Tips and Tricks
Central Air Conditioner Cost in Ontario (2026)
Jan
How much does a central air conditioner cost in Ontario? Somewhere between $3,000 and $8,500 installed, for most homes. That range is wide because a 2-ton unit going into a small bungalow is a genuinely different job than a 4-ton unit in a 3,000 sq ft two-storey. Below are real 2026 prices – by efficiency tier, brand, and home size.
Central air conditioner cost by efficiency tier
The most useful way to think about AC pricing is by efficiency. SEER rating (Seasonal Energy Efficiency Ratio) tells you how efficiently the unit runs. Higher SEER = lower hydro bills, higher purchase price.
| Tier | SEER Rating | Equipment Cost | Installed Cost |
|---|---|---|---|
| Entry level | 13-14 SEER | $900 – $1,500 | $2,800 – $4,000 |
| Mid range | 15-17 SEER | $1,600 – $2,800 | $3,800 – $5,500 |
| High efficiency | 18-20 SEER | $2,800 – $4,500 | $5,200 – $7,500 |
| Premium (variable speed) | 21+ SEER | $4,500 – $6,500 | $7,000 – $11,000 |
Entry-level units cool the house. They work. But Ontario summers have gotten hotter, and running a 13 SEER unit all day adds up on your hydro bill. The payback on a higher-efficiency unit is usually 4-7 years, depending on how often you run it. If you plan to stay in the house, high-efficiency usually wins. If you’re selling in two years, entry-level makes more sense.
New AC unit cost by brand
Brand matters less than most people think – the major manufacturers all use similar compressor technology, and the difference mostly shows up in warranty terms, how their top-of-line variable-speed models perform, and local dealer support. That said, here’s where the brands generally land on price:
| Brand | Segment | Installed Price Range |
|---|---|---|
| Goodman | Budget | $2,800 – $4,800 |
| York | Budget / Mid | $3,200 – $5,800 |
| Keeprite | Mid | $3,500 – $6,500 |
| Carrier | Mid / Premium | $4,200 – $8,500 |
| Lennox | Mid / Premium | $4,500 – $9,200 |
| Trane | Mid / Premium | $4,200 – $8,800 |
We install a lot of Keeprite in Ontario. It’s made in Canada, the warranty is solid (10 years parts if you register), and the pricing sits right in the mid range. Carrier, Lennox, and Trane make genuinely excellent equipment – you’re paying for the brand and some better variable-speed compressor options at the high end of their lineup. Goodman gets a bad reputation it mostly doesn’t deserve. The units are reliable and backed by a 10-year warranty. If budget is the priority, it’s a legitimate choice.
AC cost by home size
Contractors size AC units in tons – one ton of cooling equals 12,000 BTU/hour of heat removal. Most Ontario homes need between 2 and 3.5 tons.
| Home Size | Recommended Unit Size | Installed Cost |
|---|---|---|
| Under 1,000 sq ft | 1.5 – 2 ton | $2,800 – $4,200 |
| 1,000 – 1,500 sq ft | 2 – 2.5 ton | $3,200 – $5,000 |
| 1,500 – 2,000 sq ft | 2.5 – 3 ton | $3,800 – $5,800 |
| 2,000 – 2,800 sq ft | 3 – 3.5 ton | $4,200 – $6,500 |
| 2,800 – 3,500 sq ft | 3.5 – 4 ton | $5,000 – $8,000 |
| Over 3,500 sq ft | 4 – 5 ton | $6,000 – $10,500 |
Be careful with contractors who size by square footage alone. The right size depends on ceiling height, insulation quality, how much sun the house gets, and window area. An oversized unit short-cycles – it cools the air fast, shuts off before removing humidity, and you end up with a house that feels cold and damp at the same time. Proper load calculation (Manual J) takes about 30 minutes and is standard practice for any reputable installer.
What’s included in the installed price
A complete central AC installation includes:
- The outdoor condenser unit
- The indoor evaporator coil (installed above or below your furnace)
- Refrigerant line set (new or replaced if old lines are undersized)
- Electrical connections and outdoor disconnect box
- Building permit (required in Ontario – typically $150 to $400 depending on municipality)
- Refrigerant charge, pressure testing, and startup
- Removal and disposal of old equipment
Ask specifically about permits. Some contractors skip them to offer a lower quote. It saves a few hundred dollars upfront and creates problems when you sell the house – unpermitted HVAC work is a disclosure item, and some buyers walk.
What affects the final price
Ductwork condition. If your ducts are leaking, undersized, or were installed badly, cooling costs more and the new unit won’t perform as rated. Ductwork repairs can add $500 to $2,000+ depending on what’s needed. A good installer will check before they quote.
Refrigerant type. Older systems ran on R-22 (Freon), which hasn’t been manufactured in Canada since 2020. If you’re replacing an R-22 system, the line set may need to be replaced or flushed before a new R-410A or R-32 unit can be installed. Factor that in when comparing quotes on older homes.
Accessibility. Most Ontario homes are straightforward. But tight mechanical rooms, attic coil installations, or awkward condenser pad placement add labour time and cost.
AC cost Ontario: rebates and incentives in 2026
Ontario doesn’t offer direct rebates for standard central air conditioners the way it does for heat pumps. The Canada Greener Homes Grant ended for new applicants in 2024.
A few things are still worth checking:
- Some utilities (Toronto Hydro, Enbridge) run seasonal rebate programs – worth a quick check before you buy
- If you’re replacing both your furnace and AC at the same time, a heat pump system may qualify for federal rebates up to $5,000 through the Canada Greener Homes Loan program
- High-efficiency units (18+ SEER) sometimes qualify for utility demand-management incentives
Repair or replace: a quick guide
If your AC is under 8 years old and the repair is under $700, repair it. If it’s over 12 years old or the compressor has failed, the math almost always points toward replacement. A new compressor in a 14-year-old unit costs a lot for something that may have a few years left anyway.
The 50% rule is a reasonable starting point: if the repair costs more than half the price of a comparable new unit, replace it.
Written by
Maria Chen
Home Comfort & Energy Efficiency Specialist | NATE Certified
Maria Chen is a NATE-certified HVAC specialist and home comfort advisor with a decade of experience helping Ontario homeowners choose, install, and optimize energy-efficient heating and cooling systems. Holding a G2 Gas Technician licence and HRAI certification, Maria has deep expertise in heat pump technology, central air conditioning, and government rebate programs including the Canada Greener Homes Grant. She has a background in mechanical engineering and specializes in helping homeowners navigate system upgrades.
