Trusted HVAC services in Toronto

Most air conditioner breakdowns trace back to a failed capacitor or contactor, a dirty outdoor coil, a clogged condensate line or low refrigerant from a leak. Our 313A-certified mechanics test the whole system, find any leak before adding refrigerant and quote a flat price for the fix. If the lines are iced, switch the AC off first.

City lots are tight, so condensers sit in narrow side yards, on back decks and sometimes on flat roofs, close to the neighbour’s bedroom window. We clean the coil, check clearances and deal with noisy fan motors before they keep anyone up.

For air conditioner installation in Toronto, we match the new unit to your furnace blower and price a heat pump alongside it, which cools the same way and also heats. R-22 units are costly to recharge because that refrigerant is no longer produced, so a major leak usually points to replacement.

Heat pump installation works for most homes in the city, including old ones. A cold-climate heat pump keeps heating well below freezing, a ducted model replaces your central AC on the existing ductwork, and ductless mini-splits reach rooms the ducts never did. We size each one with a room-by-room load calculation.

Ductless suits third-floor bedrooms that bake in July, rear additions, basement apartments and radiator homes with no ducts. One outdoor unit can feed several indoor heads, so a narrow lot rarely rules it out. In a dual-fuel setup, the gas furnace covers the coldest days.

Eligible heat pumps may qualify for the Home Renovation Savings Program from Save on Energy and Enbridge Gas. Amounts depend on your home and how you heat it now, so we confirm eligibility with you before you buy. Our heat pump rebates page explains what’s open.

Beyond furnaces and air conditioners, we repair the boilers that still heat many older homes in the city, install tank and tankless water heaters, and add whole-home humidifiers, filters and ventilators for dry winter air and stale rooms. Each job starts with a diagnosis and a flat-rate price you approve.

Boilers, radiators and radiant floors

Radiators in the Annex, Cabbagetown and Riverdale often run on a boiler that has worked for decades. We repair circulator pumps, zone valves, expansion tanks and controls, and service in-floor radiant heat. When boiler replacement makes sense, a condensing boiler rated 90% AFUE or higher usually works with the existing cast iron radiators.

Tank and tankless water heaters

We replace gas and electric tanks and install tankless units that free up space in a crowded basement. A combi boiler goes further, heating the house and your tap water from one wall-hung unit. Before recommending either, we confirm the gas line and venting can handle it.

Humidity, filtration and fresh air

Winter dries out indoor air, while homes sealed up during renovations can trap moisture and cooking smells. We install humidifiers run by a humidistat, media filters with a higher MERV rating than a 1-inch filter, and HRVs or ERVs that bring in fresh air while keeping most of the heat.

No-heat and no-cooling calls are answered 24/7 and go to the front of the line. Before you call, a few quick checks can sometimes get the system running again. If you smell gas or a carbon monoxide alarm sounds, safety comes first.

• No heat: set the thermostat to heat, replace its batteries and raise the setting a few degrees.
• Check the furnace switch, the breaker and that the furnace door is fully closed.
• Clear snow or ice from the plastic intake and exhaust pipes outside a high-efficiency furnace.
• No cooling: if the lines are iced, turn the AC off and run the fan so the coil can thaw.
• Gas smell: leave right away, don’t touch switches or use your phone inside, and call Enbridge Gas at 1-866-763-5427 from outside.
• Carbon monoxide alarm: get everyone outside and call 911 before anything else.

Ontario requires carbon monoxide alarms in homes with fuel-burning appliances, and they belong near every sleeping area. The province’s carbon monoxide safety page (opens in a new tab) covers placement and testing. Once the house is safe, we repair whatever caused the problem.

Toronto has some of the oldest housing in the GTA. Victorian and Edwardian houses in Cabbagetown, Riverdale, High Park and Roncesvalles sit a short drive from post-war bungalows in East York, Etobicoke and Scarborough, while Downtown and Midtown keep adding condo towers.

Many century homes were built for coal or oil and later converted to gas. Some still heat with radiators, others moved to forced air on ducts laid out for a gravity furnace, and many have third floors or additions the system never reached. Semis share walls, which helps in winter, but narrow lots limit where vents and outdoor units go.

Leaside, Forest Hill and the Beaches have larger detached homes, many renovated more than once, where a new kitchen or finished basement changed the load without anyone resizing the equipment. Condo suites usually run on fan coils or in-suite heat pumps under building rules. That range is why heating and cooling in Toronto rarely has a one-size answer.

Planning an addition or a basement apartment? The City of Toronto (opens in a new tab) handles building permits, so plan the heating and cooling early. Further north, our North York service area page covers the bungalows and custom rebuilds there.

The problems we fix most often come from older equipment, cramped mechanical rooms and ductwork that was never designed for the house as it stands today. These are the calls we see across the city every season, with the usual cause behind each one.

• Cold third floors: ducts in older homes rarely reach the top floor well, and a ductless head or an added return often fixes it.
• Short cycling: a furnace that starts and stops every few minutes is often oversized, choked by a dirty filter or losing its flame signal.
• No ignition: cracked hot surface ignitors and dirty flame sensors are the most common no-heat repairs on modern furnaces.
• Cold radiators: trapped air, a failing circulator pump or low system pressure leaves rooms cold in boiler homes.
• Water around the furnace: the condensate line and trap on high-efficiency furnaces and AC coils can clog or freeze.
• Leaking R-22 air conditioners: units low on refrigerant are costly to recharge, so we find the leak and price a replacement too.

Whether to repair or replace depends on the system’s age, the part that failed and how often it has needed work. As a rule of thumb, we look at replacing a furnace past 15 years or an air conditioner past 12 when it needs a major part. You always see both prices side by side.

In older Toronto homes, replacement is also a chance to fix a poor vent route or switch to a combi boiler and win back basement space.

Cost depends on the equipment, the heat loss of your home and how easy the job is to reach, vent and wire. Two jobs that look alike can differ a lot once we see the basement, so you get a flat-rate price after the diagnosis.

We tell you the diagnostic fee before we book, you get a flat-rate price after the diagnosis, and that price doesn’t change halfway through.

Home HVAC maintenance is simplest as two visits a year: a furnace or boiler tune-up in fall and an air conditioner or heat pump tune-up in spring. Each visit cleans the parts that wear, tests the safety controls and catches small problems before a cold snap finds them.

Our HVAC maintenance plan covers both tune-ups with priority booking, which matters in January when every furnace in the city is working hardest. Between visits, change a 1-inch filter every one to three months. Many manufacturers also require yearly maintenance to keep the warranty valid.