Heat pump installation · Canada
Heat pump installation in Canada: the complete step-by-step process for 2026
A heat pump install usually takes two to three weeks from first assessment to a working system, and one to three days on site. The longer timelines in older guides came from the audit and approval steps of the federal Greener Homes Loan, which has since closed to new applications. For most homes the calendar now depends on the installer's schedule and on whether the provincial rebate requires an assessment first. This guide covers every step: assessment, sizing, the quote, rebate conditions, install day, commissioning and the rebate claim.
The realistic timeline
The table shows a typical sequence. Where a provincial rebate requires an energy assessment before the install, as Nova Scotia's does, the wait for that booking comes before the install date.
| Stage | Typical timing |
|---|---|
| Assessment and system choice | Week 1 |
| Load calculation and written quote | Week 1 |
| Rebate conditions checked; any pre-install assessment booked | Before signing |
| Installation | Week 2–3, depending on the installer's schedule |
| Commissioning and walkthrough | Same day as the install |
| Post-install assessment, rebate claim, warranty registration | In the weeks after the install |
Step 1: Initial assessment and system-type decision
Before anyone can quote, the household and the contractor need to settle what kind of heat pump suits the house. An assessment takes 30 to 60 minutes, in person or virtually from photos and measurements.
Four main categories:
- Ducted air-source (central), for homes with forced-air ductwork from a gas or oil furnace. The indoor coil sits with or replaces the furnace. The least disruptive option where ducts exist.
- Ductless mini-split, for homes without ducts or rooms where adding ducts is impractical. Wall-mounted indoor heads connect to an outdoor unit.
- Multi-zone ductless, for whole-home coverage without ducts: two to five indoor heads on one outdoor unit.
- Geothermal (ground-source): the highest upfront cost, the lowest running cost and the longest install. It needs land for a horizontal loop or a budget for vertical bores.
Climate shapes the choice too. In cold-continental Canada, including most of Alberta, Saskatchewan, Manitoba and northern Ontario, a cold-climate heat pump with rated capacity well below −20°C is the practical minimum. In coastal BC, a wider range of equipment works.
Step 2: Manual J load calculation
Sizing is the most consequential technical decision in the install. An oversized heat pump short-cycles, controls humidity poorly and wears faster. An undersized one runs short of capacity on the coldest days and leans on expensive backup heat.
The right method is a room-by-room heat-loss calculation, ACCA Manual J or the Canadian CSA F280 standard, using the home's floor area, ceiling heights, windows and their orientation, insulation levels, air leakage (from a blower-door test if one exists) and the local winter design temperature.
The result is a heat loss in BTU/h, which sets the capacity in tons. Most Canadian homes land between two and five tons. The calculation should appear on the written quote. The heat pump sizing guide shows how to read one and check that it was done properly.
Step 3: Get a written itemized quote
Quote quality predicts install quality. A one-line quote ("3-ton heat pump installed," one price) is a red flag. A complete quote lists:
- The heat pump's manufacturer and the indoor and outdoor model numbers
- The AHRI matched-system certificate number, confirming the indoor and outdoor units are rated as a pair
- A summary of the load calculation
- Scope: electrical work, ductwork changes, removal of the old equipment, refrigerant lines, thermostat and permit fees
- The provincial rebate at the system's actual tonnage, and confirmation that the unit is on the program's qualified list if it has one
- Warranty terms, both the manufacturer's and the installer's workmanship warranty
Comparing two or three quotes side by side shows quickly which ones leave scope out. As benchmarks, a ducted cold-climate system runs $12,000–$19,000 for a 2,000–2,500 sq ft home, a panel upgrade adds $2,000–$4,000 where one is needed, and ductwork changes add $1,500–$3,500. The scam awareness guide covers the red flags.
Step 4: Check the rebate's conditions before signing
Two checks belong before the contract, because some conditions cannot be met after the work is done.
Income-qualified programs first. Lower-income households in several provinces can have upgrades done at no cost, and those programs usually arrange the contractor themselves, so checking eligibility before signing avoids paying for work a program would have covered. The rebate guide lists them by province.
Then the market-rate rebate's conditions:
- Ontario: the unit must be on NRCan's qualified list, and the rebate tier depends on whether Enbridge natural gas heats the home.
- British Columbia: the heat pump must replace electric heat as the main source, carry the full load at −5°C, and leave no gas, oil or propane backup.
- Manitoba: a cold-climate air-source unit, ducted or ductless.
- Nova Scotia: an energy assessment before the work and another after it; replacement heat pumps do not qualify.
- New Brunswick: a Home Energy Evaluation for the ducted rebate, a unit on NB Power's list, and household income above the program's line.
- Newfoundland and Labrador: income-qualified oil and propane conversions only, with a participating installer.
- Alberta, Saskatchewan and Prince Edward Island: no heat pump rebate open to a household at market income.
Full amounts and conditions for each program are in the province-by-province tables.
Step 5: Apply for the provincial rebate
Each program sets its own order. Where it requires an assessment or evaluation before the install, that booking has to happen first, and the install date follows the report. Where the rebate is claimed after the work, the application needs the itemized invoice and the equipment's model and serial numbers, so those are worth collecting on install day.
Some contractors submit the paperwork on the homeowner's behalf. Either way, the program page is the authority on what is required and when; if the order is unclear, confirming it with the program before the install is the safe course.
Step 6: Schedule installation and prepare the site
Once the quote is signed and any pre-install assessment is done, book the install date. Lead times depend on the season and the contractor's workload.
Site preparation is brief but matters:
- Clear about two metres of working space around the existing furnace or air conditioner.
- Clear access to the outdoor unit location, usually beside the house and at least 45 cm from the foundation.
- Clear access to the electrical panel.
- Settle the outdoor unit's placement: away from bedroom windows for noise, raised above the snow line in cold provinces, close enough to keep refrigerant lines short, and off the most visible side of the house where possible.
- Plan for one to three days without heating or cooling. Spring and fall keep the disruption small.
The installer supplies the materials: refrigerant, line sets, the electrical disconnect and breaker, mounting hardware, and the pad or bracket.
Step 7: Installation day
A crew of two or three technicians usually arrives early. A typical ducted install day:
- 08:00–09:00: Walkthrough with the lead technician to confirm the outdoor unit location, indoor head locations for ductless systems, and panel access.
- 09:00–11:00: Remove the old equipment. The furnace comes out; the air conditioner's refrigerant is recovered and the unit removed. In a full oil conversion, the remaining oil is pumped out, the supply line capped and the tank taken for recycling.
- 11:00–14:00: Install the indoor unit. Ducted: the new coil and air handler, connected to the existing supply and return ducts. Ductless: wall heads mounted, with small ports drilled through the exterior wall for refrigerant lines and condensate.
- 14:00–16:00: Install the outdoor unit on its pad or bracket, run the refrigerant lines, and wire the disconnect and a new 240V circuit from the panel.
- 16:00–17:00: Evacuate the refrigerant lines with a vacuum pump to remove moisture, then release the factory charge and top up for line length.
- 17:00–18:00: Power on, run heating and cooling modes, set up the thermostat, and walk the homeowner through it.
Multi-zone systems take longer for each additional indoor head, an oil conversion adds time to remove the tank, and geothermal takes five to ten days because of the ground loop.
Step 8: Commissioning and homeowner walkthrough
Commissioning is the check before sign-off. The installer should:
- Run heating at full capacity and check the temperature rise across the indoor unit.
- Run cooling at full capacity and check refrigerant pressures against the manufacturer's specification for the outdoor temperature.
- Trigger the defrost cycle and confirm it works.
- Check airflow at every register (ducted) or every indoor head (ductless).
- Set the thermostat, including the switchover temperature on a dual-fuel system.
- Provide a commissioning report with the readings, including refrigerant subcooling and superheat.
The walkthrough should cover the controls, the filter schedule, which sounds are normal (defrost cycles included), what to do in a power outage, and how to reach the installer under warranty.
Step 9: Claim the rebate, register the warranty, keep the records
Three tasks finish the job. Where the rebate requires a post-install assessment, as Nova Scotia's does, book it promptly. Submit the rebate claim with the itemized invoice and the equipment's model and serial numbers. Register the manufacturer's warranty: many manufacturers set a deadline after installation, and a missed registration can shorten the coverage.
Keep the quote, invoice, commissioning report, permits and any assessment reports together. They support a warranty claim, a rebate query and, eventually, a home sale. Households that already hold an approved Greener Homes Loan follow the post-retrofit steps in their approval letter; the Loan closure guide covers them.
What can go wrong, and how to avoid it
Quotes that leave out electrical or ductwork scope
The most common surprise is a mid-install change order for a panel upgrade or ductwork changes. The fix is to require every category (electrical, equipment removal, ductwork, outdoor pad) as a line item, even at zero cost. The cost guide sets out what installation costs include, with a typical range for each extra.
Wrong-sized equipment
Oversized heat pumps short-cycle and control humidity poorly. Undersized ones fall back on backup heat in cold weather, which erodes the running-cost case. The fix is a proper load calculation, using the design temperature for the specific city rather than a provincial average.
Refrigerant charge errors
An under- or overcharged system loses efficiency and wears the compressor. The fix is a commissioning report that records subcooling and superheat measured after charging.
Outdoor unit placement
Typical mistakes are a ground-level unit in heavy-snow regions, a unit next to a bedroom window, or one on the noisy side of a shared wall. The fix is to settle placement during the assessment, not on install day.
Missed warranty registration
Many manufacturer warranties require registration within a set period after installation. The fix is to confirm who registers it and to keep the confirmation.
Where to start
Step 1, the assessment, sets up everything after it. When a written quote comes back, check three things before anything else: the AHRI matched-system certificate number, evidence that sizing came from a load calculation rather than a rule of thumb, and a rebate stated at the system's actual size for the home's province. A quote missing any of the three is not cheaper; it is incomplete. The cost calculator gives a benchmark price by province, home size, system and current fuel.
Sources
Last full source check: 2026-10-09.