Cooling · Toronto & GTA

Air conditioning & cooling
across Toronto & the GTA

Central air, ductless and commercial cooling — sized for a humid Toronto July rather than for a brochure, and serviced by technicians who hold current refrigeration credentials.

Book a cooling consultation Call 647 953-4252
TSSA / refrigeration certified
Central, ductless & heat pump cooling
Same-season installs when stocked
Serving Toronto & the wider GTA
1,000+
Clients served
TSSA
Certified team
7 days
A week support
GTA-wide
Service coverage
20+ yrs
Climate experience
Cooling services overview

Cooling built for humid Toronto summers — not just nameplate tons

The most common cooling complaint in this city is not that a house will not get cold. It is that it gets cold and stays clammy. That is an oversizing problem: a unit too large for the space satisfies the thermostat quickly, shuts off before it has removed any moisture, and leaves you with a chilly damp room.

So we calculate the load rather than matching the old nameplate or working from floor area. Ductwork capacity, window orientation, insulation and how the house is actually used all change the answer, and none of them are visible from the driveway.

Below are the cooling systems we install and service. If you are weighing central against ductless, or wondering whether a heat pump could do both jobs, start with the comparison rather than the price list.

What matters most for cooling and air conditioning in the GTA
Right sizing, licensed gas/refrigeration work, and commissioning beat the cheapest sticker price. We verify airflow, safety devices, condensate paths, and controls so your system does not fail the first extreme week of the season. Ask us about dual-fuel, zoning, and rebate-eligible models during your quote.
Incentives on efficient cooling upgrades
High-efficiency central air and heat pumps may qualify for utility or government programs. We note likely rebates on your written quote — review HVAC rebates for Toronto & the GTA.
Cooling work we take on
  • Central air conditioner sales & installs
  • AC repair: capacitors, contactors, compressors, leaks
  • Ductless mini-split design and multi-zone setups
  • Heat pump cooling & dual-fuel systems
  • Coil cleaning, drain clearing, spring start-ups
  • Commercial chiller service coordination
  • Thermostat & control upgrades
  • Pre-season cooling inspections
Cooling roadmap

How we plan cooling for humid GTA summers

Central AC, ductless, heat-pump cooling, and commercial paths — sized for humidity as well as temperature.

Load & ducts
Manual sizing inputs
Humidity check
Coil & runtime goals
Equipment path
Central, ductless, HP
Electrical ready
Breakers & disconnects
Install day
Line sets & drains
Commission
Superheat / subcool
Cooling categories

Explore our cooling services

Pick the path that matches your need — buy new, fix what you have, go ductless, or plan commercial cooling. Each linked page goes deeper on process and pricing factors.

Buy air conditioners
Right-sized central and heat-pump cooling systems with professional install, permits guidance, and warranty registration.
Shop & install new AC →
Air conditioner repair
Fast diagnosis for no-cool, weak airflow, ice on the coil, strange noises, and short cycling across major brands.
AC repair in the GTA →
Ductless mini-splits
Room-by-room cooling and heating for additions, upper floors, and homes without usable ductwork.
Ductless AC Toronto →
Heat pump cooling
One outdoor unit for efficient summer cooling and winter heat — designed for Toronto climate extremes.
Heat pump options →
Commercial chillers
Chiller assessment, repair coordination, and replacement planning for GTA commercial facilities.
Chiller services →
Maintenance & tune-ups
Spring start-ups, coil cleaning, refrigerant checks, and filter guidance that prevent mid-summer failures.
Schedule a cooling tune-up →
SEER2
The rating that actually predicts your July hydro bill
Right-sized cooling beats the biggest condenser on the truck — every time.

Where this fits

Common cooling and air conditioning applications in Toronto & the GTA

We assess the system, explain what we find, and put the price in writing before any work begins.

Book a free estimate
Where this fits

Common cooling and air conditioning applications in Toronto & the GTA

Different buildings need different equipment paths. These are the scenarios we see most often.

Detached & semi-detached homes
Full replacements, dual-fuel strategies, and comfort fixes for older duct systems common across Toronto neighbourhoods.
Condos & townhomes
Compact footprints, quiet operation, and board-friendly installs where access and condensate matter.
Additions & renovations
Matching new loads without oversizing, including ductless zones where trunks cannot reach.
Light commercial
Retail, clinics, offices, and mixed-use spaces that need documented maintenance and predictable uptime.
Rental properties
Durable equipment choices, clear landlord options, and service plans that reduce emergency callouts.
Efficiency upgrades
High-AFUE / SEER2 / heat-pump paths with rebate paperwork guidance when programs apply.
Why Toronto Air Systems

Why choose Toronto Air Systems for cooling

Cooling season in the GTA is short and unforgiving. We stock common repair parts, size new systems properly, and do not push oversized units that short-cycle in shoulder weather.

TSSA-licensed technicians
Every technician who works on your equipment holds current Ontario gas and/or refrigeration credentials — no uncertified subcontractors.
Built for Toronto winters & summers
We size and install equipment for real GTA climate extremes, not brochure averages from milder markets.
Transparent pricing
Detailed written quotes with equipment specs, labour, and warranty terms. No bait-and-switch or surprise change orders.
Multi-brand expertise
We service and install major HVAC brands, so recommendations fit your home — not a single manufacturer quota.
How it works

From first call to cool air

Whether you need a repair today or a replacement this month, we follow a clear process so you know cost, timeline, and what will change in your home.

Consultation
Tell us about your home or building, symptoms, and goals — by phone or online form.
On-site assessment
A licensed technician evaluates your existing cooling system, ductwork, and load requirements.
Written quote
You receive clear options, pricing, timelines, and rebate notes — no vague estimates.
Installation or repair
Our TSSA-licensed team completes the work to code with minimal disruption.
Follow-up support
We walk you through operation, warranty, and ongoing maintenance recommendations.
Brands we work with

Cooling brands we sell & service

We install and repair major residential and light-commercial AC brands. If your outdoor unit is still supported, we source OEM-quality parts whenever possible.

Where we work

Cooling service across the Greater Toronto Area

From downtown condos with ductless needs to detached homes in Mississauga and Markham, our North York team covers cooling installs and repairs throughout the GTA.

Toronto
All neighbourhoods & districts
North York
Our home base
Mississauga
West GTA residential & commercial
Brampton
Full HVAC coverage
Vaughan
Including Woodbridge & Concord
Markham
East GTA homes & businesses
Richmond Hill
Residential & mixed-use
Scarborough
East Toronto
Etobicoke
West Toronto
Oakville
Halton Region
Pickering & Ajax
Durham Region
Whitby & Oshawa
East GTA
Client reviews

Cooling reviews from Toronto-area clients

AC died the first heat wave. They confirmed a seized compressor, quoted a replacement vs temporary fix, and had a new condenser running before the weekend.
Sandra L.
Scarborough
Second-floor bedrooms never cooled until they designed a ductless zone. Quiet, even temperatures, and the installers protected the floors and landscaping.
Omar T.
Mississauga
Honest about our 14-year unit — repaired the contactor once, then helped us plan a heat pump the next spring with rebate paperwork ready.
Jennifer & Alex P.
Vaughan
FAQ

Cooling FAQ — Toronto & GTA

We sell and install central air conditioners, repair existing AC systems, design ductless mini-splits, install heat pumps that cool and heat, and support commercial chiller projects. This page is the overview; linked service pages cover each path in depth.
Repair makes sense for single failed components on mid-life equipment. Replacement is smarter when the compressor fails, refrigerant leaks are chronic, efficiency is poor, or the system uses phased-out refrigerant. We diagnose first and present both paths with costs — see AC repair and buy air conditioners.
Most straight change-outs of a matched outdoor unit and coil finish in one day once equipment is on site. Line-set replacements, electrical upgrades, or duct modifications can add time. We confirm the schedule in your written quote.
Yes. Ductless is ideal for solid-brick homes, additions, and upper floors with weak duct supply. We design head placement for comfort and condensate drainage, not just the shortest pipe run. Visit our ductless page.
Often yes. A cold-climate heat pump can provide summer cooling comparable to a conventional AC while also delivering efficient winter heat. We evaluate your furnace, ducts, and electrical service before recommending a swap or dual-fuel setup.
Book in spring — before the first heat wave — so filters, coils, capacitors, and refrigerant pressures are checked while parts and scheduling are still available. Mid-summer emergency calls are always tighter.
Yes. We support rooftop units, split systems, and chiller-related work for commercial clients. Start with our chillers or commercial HVAC pages, or call 647 953-4252 to describe your facility.
Cost depends on equipment capacity, brand, duct or piping complexity, electrical/gas upgrades, and whether you repair or replace. We provide written quotes after a site assessment so you can compare options fairly. Call 647 953-4252 for a visit.
Yes. We are based in North York at 132 Cartwright Ave and regularly serve Toronto, Mississauga, Vaughan, Markham, Scarborough, Etobicoke, Brampton, and nearby communities.
Yes. Gas and refrigeration work is performed by TSSA-licensed technicians. We follow Ontario code practice for venting, refrigerant handling, electrical disconnects, and condensate management.

Get ahead of the next heat wave

Repair, replace, or plan ductless cooling with a TSSA-certified team. Call 647 953-4252 or request a cooling consultation online.

Book a cooling consultation Call 647 953-4252

Cooling services

Getting through a GTA summer without arguing with the thermostat

Central air, ductless and heat pumps that cool as well as they heat. Humidity is usually half the problem in Toronto, so sizing matters more than raw capacity.

  • Most requested

    New air conditioners

    Supply and installation, sized for the building rather than for the brochure.

  • A/C repair

    Diagnosis and repair, including the mid-heatwave calls nobody plans for.

  • Rebate eligible

    Heat pumps

    One system for summer and winter, and the route most rebate programs are aimed at.