All Heating & Cooling
HVAC installation and repair built around how Toronto homes actually fail
From century homes in the east end to new-build subdivisions in Vaughan, we size, install, and service furnaces, air conditioners, and heat pumps to hold up against a Southern Ontario winter and a humid Toronto summer alike.
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Why GTA housing stock changes the HVAC math
Toronto and the surrounding municipalities are a patchwork of building eras, and each one puts different stress on a mechanical system. We treat the vintage of your home as a design input, not an afterthought.
Pre-war and early postwar homes
Detached houses in neighbourhoods like Leslieville, the Junction, or the Beaches were often built with gravity furnaces later converted to forced air, plaster walls with no vapour barrier, and duct runs that were never designed for today's higher-efficiency equipment. We measure static pressure before touching a single duct.
1960s-80s suburban stock
Scarborough, Etobicoke, and Mississauga bungalows and sidesplits from this era usually have adequate duct sizing but original equipment long past its rated lifespan, plus attic and basement conditions that affect how a heat pump performs in January.
New-build subdivisions
Homes going up in Vaughan, Brampton, and Whitby arrive with tighter envelopes and smaller mechanical rooms, which changes venting clearances and often pushes builder-grade equipment right to its rated capacity from day one.
Condos and townhomes
Stacked townhomes and low-rise condo units across the GTA frequently run on compact air handlers or ductless systems with real constraints on where refrigerant lines and condensate can route.
A freeze-thaw winter is hard on more than your driveway
Southern Ontario doesn't sit at one temperature all winter — it swings above and below freezing repeatedly between November and March. That cycling stresses flue venting, outdoor heat pump coils, and condensate lines that were installed without enough slope or insulation. A line that drains fine in October can back up and freeze solid by January, tripping a safety switch and shutting the whole system down on the coldest night of the year.
We design for the freeze-thaw cycle, not just the design day
Our installs account for condensate slope, trap placement, and outdoor unit clearance from snow load and roof runoff before the first fitting goes in. On service calls, we check the parts of the system that fail specifically because of repeated freezing and thawing — not just the parts that fail from cold alone. That's the difference between a repair that holds until spring and one that calls us back in a week.
HVAC services across the Greater Toronto Area
From full system replacement to same-day repairs, here's where we can help.
AC Installation Toronto & GTA
Load-calculated central air installs sized to your home's actual cooling demand, not a rule of thumb.
Learn moreAC Repair Toronto & GTA
Diagnostic-first repairs for warm air, short cycling, and units that won't start on a humid GTA afternoon.
Learn moreEmergency HVAC Service GTA
Rapid response when a furnace or AC failure becomes a safety or comfort emergency.
Learn moreFurnace Installation Toronto & GTA
Properly vented, correctly sized furnace replacements built for Ontario winters.
Learn moreFurnace Repair Toronto & GTA
Ignition, airflow, and heat exchanger diagnostics to get heat back safely and quickly.
Learn moreHeat Pump Installation & Service GTA
Installation and tuning for cold-climate heat pumps that still perform below zero.
Learn moreHVAC Maintenance & Tune-Up GTA
Seasonal inspections that catch the failure mechanisms before they become a no-heat call.
Learn moreWhy GTA homeowners choose a methodical HVAC contractor
Comfort systems fail for identifiable, mechanical reasons. Our approach is to find that reason before we recommend a fix.
Diagnostics before parts
We test airflow, static pressure, and electrical draw before replacing anything — not after.
Licensed & insured
Every technician on your property carries proper licensing and we carry commercial liability coverage.
Code-aware installs
Venting, clearances, and permits are handled to Ontario Building Code, not shortcut for speed.
Efficiency-minded
We size equipment to the home's real heat loss and heat gain, which affects both comfort and operating cost.
Responsive scheduling
No-heat and no-cool calls get prioritized because we understand what those failures mean for a household.
Straight answers
We explain the failure mechanism in plain terms before we explain the invoice.
How a service call works, start to finish
Whether it's a repair or a full installation, the process follows the same logic.
- 1
Email us your issue or request
Tell us what's happening — no heat, no cool, strange noise, or a planned replacement — and we'll schedule a visit.
- 2
On-site diagnostic
We inspect the equipment, check airflow and electrical readings, and identify the actual failure point or sizing gap.
- 3
Written recommendation
You get a clear explanation of what's wrong or what's needed, with options where they exist, before any work begins.
- 4
Work performed to code
Repairs or installation are completed with proper venting, clearances, and safety checks — not just a running system.
- 5
System verification
We confirm proper operation with actual readings, not a visual check, before we consider the job done.
Common questions from GTA homeowners
Do you serve the whole Greater Toronto Area?
Yes. We work across Toronto and the surrounding regions, including Durham, Halton, Peel, and York Region.
How do I request a quote?
Email us with your address and a brief description of the issue or project, and we'll follow up to schedule a visit.
Can a heat pump actually handle an Ontario winter?
Modern cold-climate heat pumps are rated well below zero Celsius, but performance depends heavily on correct sizing and a properly matched backup heat source, which we account for at the design stage.
How often should a furnace be serviced?
An annual inspection before heating season is the standard interval for catching wear before it causes a failure.
Do older homes need special consideration for new HVAC equipment?
Yes — duct sizing, venting paths, and electrical capacity in older GTA housing stock often need to be assessed before new equipment is installed, not after.
Where we work
Serving the Entire Greater Toronto Area
5 regions, 29 communities — wherever you are in the GTA, All Heating & Cooling is close by. Pick your area to see how we can help.
Get a straight assessment of your HVAC system
Email us with your address and what's going on, and we'll schedule a proper diagnostic visit.
Email Us for a Free EstimateLocal conditions matter — email us for same-day service.
Summer home-service conditions in Toronto, ON
Summer conditions around Toronto, ON put extra demands on your home — we're here for same-day service.
Proudly Serving Toronto, ON
Local, on-time service throughout Toronto and the surrounding area.