R-410A Refrigerant Phase-Out in Canada: 2026 Guide for Homeowners
R-410A is being phased down in Canada under federal HFC regulations. Manufacturers stopped building new residential systems with R-410A on January 1, 2025. We break down what changes, what stays the same, and what it means for your AC or heat pump.
The short version
- New residential AC and heat pump systems manufactured after January 1, 2025 use R-454B or R-32 instead of R-410A.
- Existing R-410A systems continue to operate legally. We service, repair, and recharge them as normal.
- R-410A refrigerant remains available through 2029 and beyond, though prices have roughly doubled since 2022.
- R-22, the older pre-2010 refrigerant, completed its Canadian phase-out on January 1, 2020. Reclaimed-only.
What R-410A is, and why Canada is phasing it down
R-410A is a hydrofluorocarbon refrigerant blend. Manufacturers introduced it to replace R-22 in the early 2000s after R-22 was identified as ozone-depleting. R-410A does not damage the ozone layer, but it has a high Global Warming Potential of 2,088, meaning a single kilogram released to the atmosphere traps as much heat as 2,088 kilograms of carbon dioxide over 100 years.
Canada signed the Kigali Amendment to the Montreal Protocol in 2017, committing to an 85 percent reduction in HFC consumption by 2036. Environment and Climate Change Canada implements this through the Ozone-depleting Substances and Halocarbon Alternatives Regulations. The schedule restricts new R-410A imports by volume each year, then bans new equipment manufacture, then eventually retires the refrigerant from service.
The phase-down is incremental. It does not strand homeowners or force replacement of working equipment. The intent is to shift new production toward lower-GWP alternatives like R-454B (GWP 466) and R-32 (GWP 675) while letting the installed base age out naturally.
Canada's R-410A phase-down timeline
R-410A alternatives: R-454B vs R-32
Most Canadian manufacturers chose R-454B for ducted residential equipment. Daikin and Mitsubishi favour R-32 for their ductless mini-split lines. Both refrigerants are A2L, mildly flammable, and require modified service procedures.
| Property | R-410A | R-454B | R-32 |
|---|---|---|---|
| Global Warming Potential | 2,088 | 466 | 675 |
| Safety classification | A1 (non-flammable) | A2L (mildly flammable) | A2L (mildly flammable) |
| Ozone depletion | Zero | Zero | Zero |
| Typical use | Pre-2025 residential | 2025+ ducted residential | Ductless mini-splits |
| Compatible with R-410A equipment | Yes (replaces itself) | No (drop-in not permitted) | No (drop-in not permitted) |
| Manufacturers using it | Phased out for new builds | Lennox, Carrier, Trane, Goodman | Daikin, Mitsubishi, Fujitsu |
What this means for your home
If your AC was installed before 2025
It runs on R-410A and stays that way. We service, repair, and recharge it normally. Plan for higher recharge costs if a leak develops. Replacement timing depends on age and repair frequency, not refrigerant type.
If you replace this year
Your new system will use R-454B or R-32. Equipment costs are roughly 5 to 12 percent higher than 2023 R-410A pricing. Lower GWP gives you a more future-proof system with lower lifetime refrigerant cost.
If your AC needs major repair
For systems over 12 years old facing a $1,500+ repair plus an R-410A recharge, replacement usually wins on lifetime cost. We run the repair-vs-replace math during a free in-home assessment.
Repair-or-replace decision in 2026
We use a simple framework when an R-410A system needs major work. Multiply the system's age in years by the repair quote. If the result exceeds $5,000, replacement usually wins. A 14-year-old AC with a $400 capacitor repair scores 5,600, replacement-favoured. A 6-year-old unit with a $400 repair scores 2,400, repair clearly wins.
Three factors push the decision toward replacement faster: a refrigerant leak in an evaporator coil (the coil itself usually costs $1,800 to $3,200), a compressor failure ($2,400 to $4,500), or an outdoor condenser fan motor combined with any other issue. In each case, the unit is also losing efficiency every year, so the math compounds.
If you do replace, ask about hybrid heat pump systems. A cold-climate heat pump paired with your existing gas furnace qualifies for up to $10,000 in Canada Greener Homes Plus and Enbridge rebates, runs on R-454B, and cuts your annual heating cost by 30 to 50 percent in Ontario's climate. Read our heat pump vs gas furnace comparison for the full math.
What about R-22? Is freon banned in Canada?
R-22, often called freon, completed its Canadian phase-out on January 1, 2020. No new R-22 can be imported into Canada. Reclaimed R-22, recovered from decommissioned systems, remains legal to use in existing equipment, but supply is constrained and pricing runs three to five times higher than R-410A.
Pre-2010 AC systems using R-22 are typically 16 or more years old today. We rarely recommend continued repair on R-22 equipment. Replacement with a modern R-454B unit usually pays back through energy savings alone within five to seven years, before factoring in repair avoidance. If your AC is on R-22, book a free replacement assessment and we will walk you through the options.
Questions about R-410A in your home?
EcoFrost is TSSA-certified and Lennox-authorized. We service every refrigerant generation across Mississauga, Toronto, Brampton, and the GTA. A free in-home assessment gives you a clear picture of where your system stands.
Frequently Asked Questions
Got questions about HVAC services in the GTA? We've got answers.
R-410A is not fully banned in Canada in 2026. Environment and Climate Change Canada is phasing it down under the Ozone-depleting Substances and Halocarbon Alternatives Regulations. Manufacturers must stop building new residential AC and heat pump equipment that uses R-410A by January 1, 2025. Existing systems remain legal to operate, service, and recharge using recycled or reclaimed R-410A throughout the equipment's full service life.
Yes. Licensed HVAC contractors can still purchase R-410A refrigerant in Canada through 2029 and beyond. The phase-down restricts the import of new virgin R-410A by volume each year, which raises the price, but supply remains available for servicing the existing installed base. Reclaimed R-410A from recovered systems is also legal to reuse.
R-454B and R-32 are the two main R-410A replacements approved for residential use in Canada. R-454B has a Global Warming Potential of 466, compared to 2,088 for R-410A, a 78 percent reduction. Lennox, Carrier, and Trane have shifted their 2025 and 2026 lines to R-454B. R-32 is more common in ductless mini-split equipment from Daikin and Mitsubishi.
Nothing changes for existing equipment. Your R-410A AC or heat pump will continue to operate, can be serviced, and can be recharged for the full useful life of the system, typically 12 to 18 years. The regulation targets new equipment manufacture, not installed systems. We continue to service R-410A units across Mississauga, Toronto, and the GTA.
No, not just because of the phase-out. Replace your system based on age, repair history, and efficiency. A working 6-year-old R-410A unit has a decade of useful life ahead. Forced early replacement is rarely cost-justified. If your unit is 12 or more years old and needs a major repair, the conversation shifts. We help you run the math during a free in-home assessment.
R-410A pricing in Canada has roughly doubled since 2022 as the phase-down restricts supply. A typical 2 to 3 lb recharge for a residential AC unit now runs $400 to $700 in parts and labour. Larger leaks that need full evacuation and recharge can run $900 to $1,500. We always check for and repair leaks before recharging, since topping off a leaking system wastes refrigerant and money.
Yes. R-22, the older refrigerant used in pre-2010 AC units, completed its full Canadian phase-out on January 1, 2020. No new R-22 can be imported into Canada. Recycled and reclaimed R-22 is still legal to use in existing systems but is expensive and increasingly hard to source. If your AC uses R-22, replacement is usually more cost-effective than continued repair.
Slightly. New R-454B residential AC and heat pump systems cost roughly 5 to 12 percent more than equivalent R-410A models did in 2023. The R-454B refrigerant itself is mildly flammable and classified as A2L, which requires modified service procedures and leak detection. Installation labour is similar. The long-term cost is offset by lower refrigerant pricing as A2L volume scales up.
Yes. R-454B is classified as A2L, mildly flammable but very difficult to ignite. UL, AHRI, and Canadian Standards Association have all approved A2L refrigerants for residential indoor use. New equipment includes built-in leak detection, modified electrical components, and safer service ports. TSSA-certified technicians receive specific A2L training before working on R-454B systems.
Still have questions? We are here to help.