💰 Total Installed Cost
📊 Annual Operating Cost
Cost Breakdown
Full Cost Table
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How to Use the AC Cost Calculator
Choose the cooling capacity in tons that matches the home's actual cooling load, not just square footage alone.
Choose a SEER2 efficiency tier. Higher tiers cost more upfront but lower cooling season electricity bills.
Choose the home type that best matches the installation's complexity, from a straightforward bungalow to a retrofit in an older home.
Click Calculate Installed Cost to see equipment cost, labour cost, total installed cost, and estimated annual operating cost.
What Actually Drives Central AC Installed Cost
A central air conditioner's total installed price breaks down into two main pieces: the equipment itself, and the labour to install it properly. Equipment cost scales with cooling capacity, measured in tons, and with efficiency tier, since higher SEER2-rated units use more refined compressors, larger coils, and often variable-speed technology. The legal floor for split-system central air conditioners made since January 1, 2023 is 13.4 SEER2 under Canada's Energy Efficiency Regulations, so the standard 14 SEER2 tier here sits just above the minimum. Labour cost depends far more on the specific home than most homeowners expect.
Why Home Type Changes the Price So Much
A single-storey bungalow with an accessible attic or basement and existing ductwork in reasonable condition is close to the simplest install a technician will see. A two-storey or split-level home often needs longer refrigerant line runs and more careful routing through finished spaces. An older home undergoing a retrofit can add electrical panel upgrades, new line sets, and unexpected ductwork repairs once the old system comes out, so it is worth checking how much air the existing ducts lose with the duct leakage calculator before settling on a budget. This calculator pairs a base labour figure with a complexity factor for each home type, which works out to $1,400 for a bungalow, $1,870 for a two-storey, $2,520 for a split-level, and $3,375 for an older home retrofit.
The Efficiency Tradeoff
Moving from a standard 14 SEER2 unit to an 18-plus SEER2 high-efficiency unit meaningfully increases equipment cost, but it also reduces the electricity draw for the same cooling output. Here the 16 and 18-plus tiers add 18 percent and 42 percent to the equipment price, or $756 and $1,764 on a 2 ton unit. At the default 500 cooling hours and $0.13 per kWh, that 2 ton system costs about $156 a year to run at 14 SEER2 and about $121 at 18 SEER2, so bill savings alone take many decades to cover the premium. Natural Resources Canada reports that an ENERGY STAR certified central air conditioner uses about 8 percent less energy on average than a standard model, and higher tiers pay back faster where cooling seasons are long or a rebate narrows the gap. For a closer look at just the energy side of that decision, see the energy savings calculator.
Confirm Sizing Before Pricing
This calculator assumes the system size entered already matches the home's cooling load. An oversized unit costs more upfront and can leave a home feeling humid despite hitting the thermostat setpoint, while an undersized unit runs constantly without ever catching up on hot days. If sizing has not been confirmed yet, run a load-based check such as the cooling load calculator before locking in a tonnage here.
Comparing Against a Full System Replacement
If the furnace or air handler is also due for replacement, bundling both into one project often costs less than two separate service calls. Compare the numbers here against the HVAC replacement cost calculator and the furnace cost calculator to see whether a combined project makes more financial sense.
Frequently Asked Questions
Based on this calculator's pricing, installed cost runs from about $5,000 for a 1.5 ton standard-efficiency system in a straightforward bungalow to roughly $13,500 for a 5 ton high-efficiency system in an older home retrofit. A 2 ton standard-efficiency system in a bungalow comes to $5,600. Equipment size, efficiency tier, ductwork condition, and electrical work all affect the final price, so get a written quote before committing.
Yes. In this calculator the 16 SEER2 tier adds 18 percent to the equipment price and the 18-plus SEER2 tier adds 42 percent, which is $756 and $1,764 on a 2 ton unit. Higher tiers use more refined compressors and larger coils. Lower cooling electricity bills recover part of that premium, but with typical Canadian cooling hours the payback is slow, so the upgrade makes the most sense where rebates apply or cooling seasons run long.
A bungalow or single-storey home with accessible ductwork is generally the simplest and least expensive to install into, while a multi-storey home or one needing new refrigerant line sets, electrical upgrades, or difficult attic or crawlspace access adds labour hours and material costs. This calculator applies a labour complexity factor based on the home type selected.
No. An oversized air conditioner cools the space quickly but shuts off before it can properly remove humidity, leaving the home feeling clammy despite reaching the thermostat setpoint, and the frequent on-off cycling adds wear on the compressor. Sizing should match the home's actual cooling load rather than defaulting to the largest available unit.
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