What is SEER2 and what is the minimum in Ontario?

SEER2 replaced SEER in 2023. Minimum SEER2 for new central AC in Canada is 14.3. We mostly install 16 to 18 SEER2 systems for better lifetime savings.

AC Installation in Toronto

Q: What size AC do I need for my Toronto home?

Use 20 BTU per square foot as a starting point: a 1,500 sq ft home needs about 2.5 tons. We do a Manual J load calculation that factors in insulation, windows, and orientation.

Q: Single-stage, two-stage, or variable-speed?

Single-stage is cheapest. Two-stage is the comfort sweet spot for most Toronto detached homes. Variable-speed is best for large homes or noise-sensitive owners.

Q: What about the R-410A refrigerant phaseout?

R-410A is being phased down. Most new equipment in 2025+ uses R-454B or R-32. We install systems that meet current and upcoming refrigerant rules.

Q: How long does AC installation take?

A central AC swap is usually 4 to 6 hours. Mini-splits 6 to 10 hours. Heat pumps a full day. Most Toronto jobs are booked within 48 hours.

North Wind HVAC Pro installs new central air conditioners and ductless systems across Toronto and the GTA. We’re TSSA-approved and 313D refrigeration certified, with same-day quotes and most installs completed within 48 hours of approval. Pricing for a typical Toronto central AC install runs $3,800 to $7,500 fully installed, depending on tonnage, SEER2 rating, and the condition of your existing line set. Call (647) 558-5528 for a no-pressure quote, or request one online.

Already know what you want? Browse our central AC lineup or read about our full AC installation service.

When To Replace Your AC in Toronto

Toronto summers keep getting hotter, and an AC that limped through 2019 may not survive a 35 degree heat wave today. Here’s when replacement beats another repair:

Age 12 to 15 years or older. Most central units sold in the GTA last about 15 years. After year 12, efficiency drops fast and parts get scarce.
Hydro bills creeping up every summer. A 13 SEER unit from 2008 uses roughly 30% more electricity than a modern 16 SEER2 system doing the same cooling.
Uneven cooling between floors. Older single-stage units can’t modulate. If your second floor is 5 degrees warmer than the basement, the system is undersized, oversized, or worn out.
R-22 (Freon) refrigerant. Banned for new production in Canada. If your unit takes R-22 and develops a leak, a top-up alone can cost more than a down payment on a new system.
Warm air from the vents. Often a failing compressor. Compressor replacement on a 10-year-old unit usually isn’t worth it.
Repair quotes over $1,500. Industry rule of thumb: if the repair cost times the unit’s age in years exceeds $5,000, replace.

Not sure which way to go? We do honest repair-versus-replace assessments. See our AC repair service for diagnostic options.

AC Types We Install in Toronto Homes

Toronto housing stock runs the full range, from 1920s semi-detached homes in Roncesvalles to glass-tower condos on Bay Street. The right AC depends on your ducting, electrical, and layout.

Central split systems. The standard for any home with existing forced-air ducts. Outdoor condenser, indoor evaporator coil sitting on top of your furnace. Cools the whole house from one thermostat. Best fit for detached and semi-detached homes from Etobicoke to Scarborough.

Ductless mini-splits. The fix for older Toronto homes with radiator heat and no ducts, or for finished basements and additions where running ductwork would tear the place apart. One outdoor unit can run 2 to 5 indoor heads, each with its own thermostat. Popular in The Beaches, Cabbagetown, and Leslieville.

Heat pumps (cold-climate). A heat pump cools in summer and heats in winter, replacing both your AC and (often) your furnace. Modern cold-climate models work down to minus 25 Celsius and qualify for federal rebates. Worth a serious look if your furnace is also near end of life. See our heat pump installation page.

Compressor staging matters. Single-stage units are either off or full blast, cheapest upfront but loudest and least even. Two-stage units run on low about 80% of the time, which means quieter operation and better humidity control. Variable-speed (inverter) units modulate continuously between roughly 25% and 100% capacity, deliver the most consistent temperatures, and use the least power. Premium price, premium comfort.

How Much Does AC Installation Cost in Toronto?

Real Toronto numbers, parts and labour, no fine print:

Central AC, single-stage, 14.3 SEER2 (Goodman, KeepRite, Tempstar): $3,800 to $5,200 installed, 2 to 3 ton
Central AC, two-stage, 16 to 17 SEER2 (Lennox, Ruud, Comfortmaker): $5,200 to $6,800 installed
Central AC, variable-speed, 18+ SEER2 (Lennox SL, Ruud Ultra): $6,500 to $8,500 installed
Ductless mini-split, single-zone: $2,500 to $4,500 installed
Ductless multi-zone (3 heads): $7,000 to $11,000 installed
Cold-climate heat pump (replaces AC + supplements furnace): $7,500 to $14,000 installed before rebates

What pushes the price up: long line-set runs in older homes, electrical panel upgrades to handle the new disconnect, removal of old R-22 refrigerant, condo balcony rigging, or routing around a finished basement. What can bring it down: keeping your existing line set if it’s clean and the right diameter, and stacking the rebates we cover further down.

Every quote we give is fixed-price after the in-home assessment. No surprise add-ons on install day.

Sizing Your AC for a Toronto Home

Wrong-sized AC is the single most common installation mistake in the GTA. Too big and the unit short-cycles, leaving the house clammy and burning out the compressor early. Too small and it runs nonstop on hot days without ever hitting setpoint.

The rough rule is 20 BTU per square foot of conditioned space, which puts a 1,500 sq ft Toronto bungalow around 30,000 BTU, or 2.5 tons. But that’s just a starting point. Insulation level, window count and orientation, ceiling height, attic R-value, and even how many people live there all change the answer. A 1920s Annex house with single-pane windows needs more cooling than a 2015 build of the same square footage.

We do a Manual J load calculation on every install. It takes the guesswork out and keeps your warranty valid.

Our Toronto AC Installation Process

Phone or online quote within the same business day. Ballpark numbers based on your home’s size and current setup.
In-home assessment. A licensed tech measures, inspects ductwork, checks electrical capacity, runs the load calc. Usually 45 minutes.
Fixed quote with three options: good, better, best. Equipment, install, permit, warranty, all included.
Install day. Most central swaps take 4 to 6 hours. Mini-splits 6 to 10 hours depending on zones. Heat pumps a full day.
Commissioning. Vacuum the lines, charge to spec, verify airflow, register the warranty, walk you through the thermostat.
Rebate paperwork. We file the manufacturer and utility rebate forms for you.

Rebates for Toronto Homeowners

Stacking rebates can knock $1,000 to $5,000 off your install cost. Current programs Toronto homeowners should look at:

Canada Greener Homes Loan. Interest-free loan up to $40,000 for cold-climate heat pumps and other deep-retrofit work. Standard central AC alone usually doesn’t qualify, but a heat pump replacing an AC plus furnace does. Details at the Canada Greener Homes Initiative page.

Enbridge Home Efficiency Rebate Plus (HER+). Up to $7,800 for eligible upgrades when paired with a pre and post energy audit. Heat pumps qualify; high-efficiency AC alone usually doesn’t.

Save On Energy. Periodic Toronto Hydro and IESO programs for ENERGY STAR certified equipment. Check the current offers when you book your assessment. ENERGY STAR criteria are listed on the NRCan ENERGY STAR page.

Manufacturer promos. Lennox, Ruud, and KeepRite usually run spring rebates of $300 to $1,200 per qualifying system. We track the live ones and apply them automatically.

One catch: rebate programs change every quarter. We pull the current list at quote time so you’re not betting on a program that ended last month.

Toronto Neighborhoods We Install In

We cover all of Toronto: Etobicoke, North York, Scarborough, East York, downtown core, midtown, The Beaches, Leslieville, Riverdale, High Park, Roncesvalles, Bloor West Village, Forest Hill, Yorkville, Annex, Cabbagetown, Liberty Village, plus the inner GTA (Mississauga, Vaughan, Markham, Richmond Hill). Full coverage map on our service area page.

Frequently Asked Questions

How much does a new AC cost in Toronto?

A standard 2 to 3 ton central AC installation in Toronto runs $3,800 to $7,500 fully installed, including permit and a 10-year parts warranty. Variable-speed premium systems push toward $8,500. Ductless mini-splits start around $2,500 per zone. Heat pumps with rebates can land in similar territory after federal and utility incentives.

What size AC do I need for my Toronto home?

Use 20 BTU per square foot as a rough starting point: a 1,500 sq ft home needs about 2.5 tons (30,000 BTU), and a 2,500 sq ft home needs about 4 tons. That’s just a starting point. We do a proper Manual J load calculation that factors in insulation, windows, ceiling height, and orientation. Wrong sizing causes short cycling and humidity problems.

What is SEER2 and what’s the minimum in Ontario?

SEER2 is the updated efficiency rating that replaced SEER in 2023, measured under stricter test conditions. The minimum SEER2 for new central AC sold in Canada is 14.3 (about equivalent to the old 15 SEER). We mostly install 16 to 18 SEER2 systems because the lifetime hydro savings on the higher rating usually beat the price difference within 4 to 6 years in Toronto.

Single-stage, two-stage, or variable-speed?

Single-stage is cheapest and fine for smaller, well-insulated homes. Two-stage is the comfort sweet spot for most Toronto detached homes: quieter, better humidity control, modest price bump. Variable-speed (inverter) is best for large homes, anyone sensitive to noise, or homeowners who plan to stay 10+ years and want maximum efficiency.

What about the R-410A refrigerant phaseout?

R-410A is being phased down across North America. Most new equipment shipping in 2025 and beyond uses R-454B or R-32, which have much lower global warming potential. We install systems that meet current and upcoming refrigerant rules so you’re not stuck with a dead-end platform.

How long does AC installation take?

A central AC swap on an existing forced-air home is usually a 4 to 6 hour same-day job. Ductless mini-splits run 6 to 10 hours depending on the number of indoor heads and how clean the line set route is. Heat pump conversions take a full day. From signed quote to installed system, we book most Toronto jobs within 48 hours.

What warranty do I get?

Lennox, Ruud, KeepRite, Goodman, Tempstar, and Comfortmaker all carry a 10-year parts warranty when registered within 60 days. We register it for you. Our labour warranty is 1 year standard, with extended labour packages available. Compressors on premium lines often carry a separate 12-year warranty.

Book a Toronto AC Install Quote

Same-day quote, install within 48 hours on most jobs, 5.0 stars across 104+ reviews. Call (647) 558-5528 or book online. We’re TSSA-approved, 313D certified, and we handle the rebate paperwork so you don’t have to.