What is the difference between an air handler and a furnace?

An air handler contains a blower and evaporator coil but no gas burner. It uses electric heat strips or a heat pump for heating. A furnace burns gas. Air handlers are used with central ACs, heat pumps, and in all-electric homes.

How much does an air handler replacement cost in Toronto?

An air handler replacement typically runs $2,500–$6,000 installed, depending on unit size, orientation, and whether refrigerant line work is included.

Can an air handler be installed in an attic in Toronto?

Yes, it's common. Proper attic installs require a drain pan with float switch, insulated refrigerant lines, and good service access. We've done many attic installs and know how to do them correctly.

Air Handler Installation Toronto | HVAC Smart Solution

Air Handler Types

Configurations We Install in GTA Homes

The right configuration depends on your space, how the ductwork connects, and whether you're pairing with a heat pump or AC.

Vertical / Upflow

The most common configuration in GTA homes. Stands upright in a utility closet or mechanical room. Return air enters from the bottom, supply exits to the plenum above. Well-suited for basement and closet installs.

Horizontal (Attic)

Air handler lies on its side. Common when mechanical equipment goes in the attic. Requires a secondary drain pan with overflow float switch and proper condensate routing. We've done many attic installs correctly.

Heat Pump Fan Coil

Paired with a heat pump outdoor unit. Includes electric backup heat strips for very cold days when the heat pump needs supplemental heating. Must be sized to match the outdoor unit's capacity.

Transparent Pricing

Air Handler Installation Costs

Written quotes before work begins. Refrigerant line work included in the estimate when needed.

Unit / Scenario	Price Range (Installed)
Air handler replacement (1.5–3 ton, basement/closet)	$2,500 – $4,500
Air handler replacement (3–5 ton)	$3,800 – $6,000
Horizontal attic installation (additional labor)	+$400 – $800
Variable-speed ECM blower upgrade	$3,200 – $5,500
Evaporator coil replacement only	$1,200 – $2,400

Refrigerant line flushing and pressure testing included. Prices vary with unit size and installation complexity.

Replacing an Air Handler?

Tell us your outdoor unit brand, tonnage, and current air handler location. We'll come out and give you a complete written quote including refrigerant line work.

416-827-8676

TSSA-Licensed · Matched Coil Sizing · All Orientations

Where We Work

Serving Toronto & All of the GTA

Our technicians are based in Thornhill and cover the entire Greater Toronto Area — same-day service available across most of our coverage zone.

Toronto & Inner Ring

Toronto, North York, Scarborough, Etobicoke, East York, York. We cover the entire 416 area code and have technicians positioned to respond quickly throughout the city.

York Region

Thornhill, Richmond Hill, Markham, Vaughan, Aurora, Newmarket, King City, Woodbridge. Our home territory — fastest response times and deepest familiarity with local building stock.

Peel & Durham Regions

Mississauga, Brampton, Oakville, Ajax, Pickering, Whitby, Oshawa. We service these areas regularly and can provide same-day quotes across most of Peel and Durham Region.

FAQ

Air Handler Questions

A furnace burns natural gas to generate heat — it has a gas valve, heat exchanger, and flue. An air handler has a blower and evaporator coil but no gas burner. It heats electrically (with heat strips or a heat pump) and is used in all-electric homes or homes with heat pumps. Both move conditioned air through your ducts.

A typical air handler replacement runs $2,500–$6,000 installed, depending on unit size (1.5–5 ton), orientation (horizontal attic installs are more labor-intensive), and whether refrigerant line work is included. We provide detailed written quotes after assessing your setup.

If the air handler is more than 10 years old, replacing both together usually makes sense. Mismatched systems can reduce efficiency by 10–15% and may void manufacturer warranties. We'll honestly assess your existing air handler — sometimes a coil-only swap is enough, and we'll tell you if that's the case.

Yes — it's common in Toronto homes with limited mechanical room space. Proper attic installs require a drain pan with float switch (to shut off the unit if primary drainage fails), insulated refrigerant lines, and good service access. We've done many attic installs and know what needs to be done to get it right.

Yes. We install and service air handlers throughout Toronto, Thornhill, Richmond Hill, Markham, Vaughan, North York, Scarborough, Etobicoke, Mississauga, and Brampton. Based in Thornhill, same-day service is available for most GTA locations.

Yes. We work with all major manufacturers and confirm the indoor coil matches the outdoor unit's AHRI rating — the right match matters for rated efficiency and warranty compliance. We'll tell you exactly what's compatible before you commit to any equipment.

A straightforward air handler replacement in an accessible basement or utility room takes 4–6 hours. Attic or crawlspace installs are more involved — typically 6–10 hours depending on access and any duct modifications needed. We complete the full job in one visit whenever possible.

Air Handler Installation & Replacement