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59 answers

HVAC technician repairing a gas furnace in a Toronto home with diagnostic tools
Heating

How much does furnace repair cost in Toronto?

Most furnace repairs in Toronto cost $150–$800 once the $80–$150 diagnostic fee is folded in.

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Technician's hands servicing burner components during a furnace tune-up
Heating

How much does a furnace flame sensor cost?

A furnace flame sensor costs $150–$300 in the GTA, cleaned or replaced, and that figure normally includes the service call.

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Technician inspecting a furnace blower motor while diagnosing a noisy heating system
Heating

How much does a furnace blower motor cost?

A furnace blower motor costs $500–$1,500 installed in the GTA.

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HVAC technician repairing a gas furnace in a Toronto home with diagnostic tools
Heating

How much does a furnace igniter cost to replace?

Replacing a hot surface igniter costs $200–$450 in the GTA, part and labour, and that usually includes the service call.

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HVAC technician inspecting a furnace for repair or replacement in a GTA home
Heating

How much does a furnace control board cost?

A furnace control board costs $500–$1,200 installed in the GTA.

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Technician servicing the internal components of a residential boiler
Heating

How much does boiler repair cost?

Most residential boiler repairs land between $150 and $800, on top of a $90–$150 diagnostic visit that gets credited toward the work.

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HVAC technician testing a capacitor inside an air conditioner condenser at a GTA home
Cooling

How much does AC repair cost in the GTA?

Most AC repairs in the GTA cost $150–$800.

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Technician checking air conditioner refrigerant with manifold gauges
Cooling

How much does an AC refrigerant recharge cost?

An AC refrigerant recharge in the GTA costs $300–$800+ when done properly, because the price includes finding and repairing the leak, not just adding gas.

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HVAC technician testing a capacitor inside an air conditioner condenser at a GTA home
Cooling

How much does an AC capacitor cost to replace?

Replacing an AC capacitor costs $150–$350 in the GTA, including the part, the labour and the trip.

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Ductless mini-split air handler mounted high on an interior wall
Cooling

How much does a ductless mini-split cost in Ontario?

A ductless mini-split in Ontario costs $4,000–$7,000 installed for a single-zone system, $7,500–$11,000 for two zones and $10,000–$16,000+ for three or four.

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Technician checking air conditioner refrigerant with manifold gauges
Cooling

How much does AC maintenance cost?

A standalone air conditioner tune-up in the Burlington, Oakville and Hamilton area costs $120–$250 and takes 45 to 90 minutes.

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HVAC technician servicing an outdoor air conditioning unit at a home
Heat Pumps

How much does heat pump maintenance cost?

A heat pump tune-up in the Burlington, Oakville and Hamilton area runs $120–$250 per visit.

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New residential gas tank water heater freshly installed in a GTA home basement utility area
Water Heaters

How much does it cost to replace a water heater in Ontario?

Replacing a tank water heater in Ontario costs $1,200–$2,500 installed; a tankless conversion runs $3,500–$6,500, with the most common 199,000 BTU gas swap landing at $4,200–$5,000.

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Wall-mounted condensing tankless water heater installed in a GTA home utility room
Water Heaters

Why does my tankless water heater go hot, then cold?

A tankless water heater that goes hot, then cold, then hot again is usually a 'cold water sandwich': turn a tap off and back on within minutes and you get the hot water left in the pipe, then the cold slug that went through the unit as it re-ignited.

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Plumber installing pipe fittings for heating system
Water Heaters

Does a tankless water heater need a bigger gas line?

Usually, yes.

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Technician repairing a residential water heater with a wrench
Water Heaters

Why is my electric water heater tripping the breaker?

An electric water heater that trips the breaker most often has a heating element whose metal sheath has cracked, letting water reach the live wire and short it to the tank.

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Technician cleaning a residential HVAC duct with a rotary power brush
Air Quality & Ducts

How much does duct cleaning cost in the GTA?

Professional duct cleaning for a typical GTA house costs $300 to $700, depending on home size, number of vents, and system accessibility.

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Homeowner replacing a furnace filter in a GTA home
Air Quality & Ducts

Can a furnace filter be too thick or restrictive?

Yes.

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Technician cleaning a residential HVAC duct with a rotary power brush
Air Quality & Ducts

How much does dryer vent cleaning cost?

Dryer vent cleaning typically costs $100–$200 when added to a duct cleaning visit.

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Homeowner on the phone calling for emergency HVAC service in a Toronto-area home
Emergency

What counts as an HVAC emergency?

An HVAC emergency is anything that threatens safety, health, or your home: no heat in winter, any gas smell, suspected carbon monoxide, a major water leak from your system, or no cooling during a heat warning when vulnerable people are home.

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Family leaving their home and calling for help after smelling natural gas indoors
Emergency

What should I do if I smell gas in my house?

Leave the building immediately.

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Blue gas burner flames inside a furnace during a heating inspection
Emergency

Is a cracked heat exchanger an emergency?

Yes, treat it as one.

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Couple calculating HVAC financing payments with a calculator and tablet at home
Costs & Buying

Can I finance a new furnace or air conditioner in Ontario?

Yes.

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Cold-climate air-source heat pump installed beside a GTA home in winter
Costs & Buying

How much does a heat pump cost in Ontario?

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.

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HVAC technician diagnosing a furnace during a service call at a GTA home
Costs & Buying

How much does an HVAC service call cost in the GTA?

An HVAC service call in the GTA typically costs $90–$150 for the diagnostic fee, which covers a technician coming out and finding the problem.

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Homeowner reviewing a free written HVAC installation quote at a GTA kitchen table
Costs & Buying

Are HVAC estimates and quotes free in the GTA?

Yes — quotes for a new furnace, air conditioner, or heat pump installation are almost always free in the GTA, including in-home assessments and itemized written pricing.

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HVAC technician installing a new outdoor air conditioner unit during a system replacement
Costs & Buying

How much does a furnace and AC combo cost?

Replacing a furnace and air conditioner together in the GTA typically runs $7,500–$11,500 installed, depending on efficiency tier and home size.

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Technician servicing the internal components of a residential boiler
Costs & Buying

How much does a new boiler cost in Ontario?

A new boiler in Ontario has no single price.

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Heat recovery ventilator mounted in a residential basement with insulated ventilation ducts
Costs & Buying

How much does an HRV cost installed?

An HRV's installed price is set by how it is ducted, not by the unit's rated airflow.

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Whole-home humidifier installed on a furnace plenum with flexible ductwork
Costs & Buying

How much does a whole-home humidifier cost?

A whole-home humidifier mounted on the furnace runs $500–$1,200 installed in most GTA homes.

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Smart Wi-Fi thermostat controlled from a phone app inside a home
Costs & Buying

How much does smart thermostat installation cost?

Smart thermostat installation is mostly labour, and the labour depends on your wiring.

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Lennox furnace with ductwork and gas line connections
Costs & Buying

How much does gas line installation cost?

Gas line pricing comes down to length, pipe size and how hard the route is to run, not a flat per-appliance rate.

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Lennox furnace with ductwork and gas line connections
Costs & Buying

How much does a garage heater cost installed?

Garage heater pricing depends on three things: the heater type — a gas unit heater versus a low-intensity infrared tube heater — whether gas and power already reach the garage, and how the exhaust gets out.

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Ductwork, humidifier, and piping installed in residential basement
Costs & Buying

How much does new ductwork cost?

New ductwork is priced by how much sheet metal has to be fabricated and hung and by how hard the space is to work in, not by the size of the house.

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Commercial rooftop packaged HVAC unit on a flat commercial roof
Costs & Buying

How much does a commercial rooftop unit cost?

A commercial rooftop unit is quoted per unit, and the equipment is often the smaller half of the number.

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Ductwork, humidifier, and piping installed in residential basement
Costs & Buying

How much does HVAC cost for a new build?

HVAC for a new build prices in two halves.

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Couple calculating HVAC financing payments with a calculator and tablet at home
Costs & Buying

How much does a furnace cost per month financed?

A financed furnace in the GTA usually lands between $60 and $150 a month.

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New high-efficiency furnace installed in a GTA home — 2026 pricing breakdown
Costs & Buying

How much does HVAC cost for a 2,000 sq ft house?

For a 2,000 sq ft home in this region, a high-efficiency furnace replacement typically runs $4,500–$7,500 installed, a furnace and air conditioner together $7,500–$11,500, and a cold-climate heat pump $9,500–$15,000 before rebates.

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Heating engineer installing a heating system
Heating

Why are my heating pipes banging when the heat comes on?

Heating pipes that bang when the heat comes on are doing one of two things.

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High-efficiency furnace beside a gas water heater and humidifier
Heating

How much does it cost to fix a furnace leaking water?

Fixing a furnace leaking water costs $150–$350 when the cause is a clogged condensate trap or drain line, and $250–$450 for a new condensate pump.

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Repairman checking gas furnace output temperature with an infrared thermometer
Heating

How much does a furnace tune-up cost in Ontario?

A furnace tune-up in Ontario costs $120–$250 for a single visit of 45 to 90 minutes by a licensed gas technician.

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Couple, insurance paperwork and budget planning with laptop
Heating

How do I get out of a furnace rental contract in Ontario?

You get out of a furnace rental contract in Ontario by paying the buyout in the contract, negotiating it down, or having the contract set aside.

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Hands working inside a furnace cabinet
Heating

How much does a furnace heat exchanger cost to replace?

Replacing a furnace heat exchanger costs $1,500–$3,000 in parts and labour on most furnaces.

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Repairman checking gas furnace output temperature with an infrared thermometer
Heating

Do I need annual maintenance to keep my furnace warranty?

In practice, yes.

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Living room with a fireplace
Heating

Do I need a permit to install a gas fireplace in Ontario?

Sometimes.

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Technician repairing a tank water heater
Water Heaters

How much does water heater maintenance cost?

Water heater maintenance in the Greater Toronto and Hamilton Area is priced like any other tune-up visit: $120–$250 for an annual service on a tank, and $150–$300 for a tankless descale flush.

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Mechanical room with a tank water heater, gas furnace and tankless unit
Water Heaters

How much does tankless water heater repair cost?

Tankless water heater repair in the GTA typically costs $150–$800, plus a $90–$150 diagnostic visit that is credited toward the repair.

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Tankless hot water heater mounted on a wall
Water Heaters

How much does tankless water heater maintenance cost?

Tankless water heater maintenance costs $150–$300 for an annual descale flush on a unit that has isolation valves.

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High-efficiency furnace beside a gas water heater and humidifier
Water Heaters

How do I get out of a Reliance water heater rental?

To get out of a Reliance water heater rental you either buy the tank where it sits or terminate and return it.

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Plumber repairing a tank water heater
Water Heaters

How do I get out of an Enercare water heater rental?

You get out of an Enercare water heater rental by buying out the existing tank or by cancelling and returning it under your agreement.

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Modern house with an outdoor heat pump unit
Heat Pumps

Why is my heat pump making a loud noise?

A heat pump making a loud noise is normal when it is a whoosh and hiss lasting a few seconds, the reversing valve shifting at the start and end of defrost, or a steady drone from the inverter compressor in deep cold.

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Technician working on an outdoor HVAC unit in a residential area
Heat Pumps

Why is one mini-split head not working?

When one mini-split head is not working and the others are, check the modes first.

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Service technician inspecting a gas furnace
Costs & Buying

How much does an HVAC maintenance plan cost in Ontario?

An HVAC maintenance plan in Ontario that covers one furnace tune-up in the fall and one AC or heat pump tune-up in the spring typically costs $150–$350 per year.

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Home inspector on a roof examining a gas vent
Heating

What does Lennox furnace error code E227 mean?

Lennox furnace error code E227 means the low pressure switch opened during the trial for ignition or in run mode: the switch closed, then dropped out.

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Technician looking over a gas furnace
Heating

What does Lennox furnace error code E228 mean?

Lennox furnace error code E228 means combustion air inducer calibration failure: the control was unable to perform its pressure-switch calibration.

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Replacing the filter in a central ventilation system
Heating

What does Lennox furnace error code E250 mean?

Lennox furnace error code E250 means the limit switch circuit is open: the furnace overheated.

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Wall-mounted gas tankless water heater with copper piping in a basement
Water Heaters

What does Navien error code E004 mean?

Navien error code E004 means false flame detection: the control board sees a flame signal when the burner should be off.

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Tankless combination water heater and boiler
Water Heaters

What does Navien error code E515 mean?

Navien error code E515 means abnormal operation of the PCB: the control board has failed a self-check.

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Tankless hot water heater mounted on a wall
Water Heaters

What does Rinnai error code 11 mean?

Rinnai error code 11 means no ignition: the heater tried to light its burner, no flame was established, and it has locked out.

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