Quick answer
A cold-climate heat pump in Ontario typically costs $6,000–$16,000 installed before rebates, depending on system size, whether it's ducted or ductless, and whether it replaces or works alongside your furnace. A typical 3-ton cold-climate unit lands at $9,500–$15,000. Current Ontario programs return up to $7,500 depending on the system, and lower running costs than gas through the shoulder seasons help recover the rest.
How much a heat pump costs in Ontario depends on three choices: ducted or ductless, standard or cold-climate rated, and whether your furnace stays on as backup. Whole-home ducted cold-climate systems run $6,000–$16,000 installed before rebates, with a typical 3-ton unit at $9,500–$15,000; a single ductless head is a different purchase at $4,000–$7,000. Here's what GTA homeowners actually pay and what moves the number.
Typical installed price ranges
- Cold-climate air-source heat pump (whole home, ducted): roughly $6,000–$16,000 installed before rebates, depending on capacity, brand tier, and electrical work needed; most 3-ton systems land at $9,500–$15,000
- Single-zone ductless mini-split: $4,000–$7,000 installed — the right fit for an addition, a condo, or one problem room
- Dual-zone ductless: $7,500–$11,000 installed; three to four zones run $10,000–$16,000+, and cold-climate ductless models add roughly $500–$1,500 per zone
- Dual-fuel (hybrid) setup — heat pump paired with a backup furnace: adds the furnace cost ($3,500–$7,500) if the furnace is replaced at the same time; a furnace under about 10 years old usually stays
What drives the price
- System size — sized by a proper heat-load calculation, not square footage alone; oversizing wastes money and short-cycles
- Ducted vs. ductless — reusing existing ductwork is cheaper than running line sets to multiple indoor heads
- Cold-climate rating — true cold-climate units that heat efficiently at -25°C cost more than mild-climate models but are what Ontario winters require; see our cold-climate heat pump guide
- Electrical upgrades — some older homes need a panel upgrade to add a heat pump, which adds cost
- Backup heat — keeping your furnace as backup vs. going fully electric changes the equipment list
What a complete heat pump quote lists
- The outdoor unit model and the indoor air handler or coil it is matched to — the pairing sets the rated efficiency, not the outdoor unit alone
- Electrical scope: the dedicated 240-volt circuit, the outdoor disconnect, and whether your panel has capacity — a 100-amp panel in a 1970s house sometimes forces a service upgrade; a 200-amp panel rarely does
- Line-set length and routing, a pad or wall bracket that keeps the unit above typical snow depth, and a condensate path for both seasons
- A thermostat that can manage dual-fuel switchover if the furnace stays, and the outdoor temperature at which it hands over
- Permit, commissioning with the refrigerant charge verified, and the rebate paperwork as named line items
Rebates and loans that lower the cost
Heat pumps carry the strongest incentives in residential HVAC. The Home Renovation Savings Program — the current Ontario program, run by Enbridge and Save on Energy since January 2025 — pays rebates on qualifying cold-climate heat pumps installed by a participating contractor, with current Ontario programs returning up to $7,500 depending on the system. The federal Canada Greener Homes Loan is a separate interest-free financing stream and is not the closed Greener Homes Grant; check the program page for its current status. Rules and amounts change, so confirm before you sign — our Ontario HVAC rebates hub tracks what's active, and ZK files the paperwork with the install.
Running-cost savings vs. a furnace
Because a heat pump moves heat instead of burning fuel, it can deliver two to three units of heat per unit of electricity, often making it cheaper to run than a gas furnace through much of the GTA's shoulder seasons — and it replaces your air conditioner, so you're buying heating and cooling at once. Whether the lifetime savings beat a furnace depends on your gas and electricity rates; we walk through the math in is a heat pump worth it for Toronto winters.
Heat pump cost questions we get at quotes
- Is it cheaper than replacing furnace and AC together? Compare it against the combined install at $7,500–$11,500, not against a furnace alone — the heat pump replaces both machines.
- Do I have to keep gas? No — true cold-climate units heat at -25°C. A hybrid with your existing furnace keeps gas backup and lowers the upfront spend when the furnace is still young.
- Will my hydro bill rise? Yes, while the gas bill falls. Whether the total drops depends on your rates and how much of the winter the heat pump carries.
- How long does the install take? A ducted swap onto existing ductwork is usually one to two days; multi-zone ductless takes longer for line-set routing.
- Does the price include removing the old AC? It should — refrigerant recovery from the old condenser is licensed work and belongs on the quote as a line item.
ZK Mechanical sizes and installs cold-climate heat pumps across the GTA and Hamilton — see the heat pump installation service — handles the rebate paperwork with you, and arranges financing through lending partners with no prepayment penalty. Request a free in-home quote and we'll give you an itemized price with the rebates you qualify for already factored in.