Cooling
Central air conditioning that actually keeps up.
GTA summers are humid and unforgiving. Delson Air installs and repairs central air conditioning that’s sized correctly, charged properly, and installed neatly — so it cools evenly and controls humidity instead of just running constantly.
What we do
Air Conditioning services, end to end.
We work with major brands, give honest sizing (bigger is not better), and back every installation with a written warranty. When your AC quits in a heat wave, we offer fast diagnostic and repair visits.
Central AC installation
Right-sized central air systems from major brands, with a proper load calculation and a clean, code-compliant install.
AC replacement
Efficient upgrades for old or leaking units — improving comfort, humidity control, and energy bills.
AC repair & diagnostics
Refrigerant leaks, capacitors, contactors, fan motors, frozen coils, and thermostat faults — found and fixed.
Ductless mini-splits
Targeted cooling for additions, attics, and rooms where ductwork isn’t practical.
Seasonal tune-ups
Spring maintenance that keeps the system efficient and heads off mid-summer breakdowns.
Why Delson Air
Why homeowners choose us for air conditioning.
Correctly sized
An oversized AC short-cycles and leaves your home cold-but-clammy. We size for comfort and humidity, not just temperature.
Clean, careful installs
Proper line sets, correct charge, level pads, and tidy finish work — the details that decide how long a system lasts.
Fast in a heat wave
Same-day diagnostic and repair visits across the GTA when the heat is on and the AC isn’t.
FAQ
Air Conditioning questions, answered.
What size air conditioner do I need?
How much does central AC cost in the GTA?
Why is my AC running but not cooling?
Should I repair or replace my AC?
From the Journal
Helpful reading on air conditioning.
What Size Air Conditioner Does My GTA Home Need?
Sizing a central AC for your Toronto or GTA home? Learn how BTU and tonnage work, why bigger isn't better, and the square-footage ranges to start from.
AC Maintenance Checklist: Ready Your System for a GTA Summer
A spring AC maintenance checklist for Toronto and GTA homes — DIY tune-up steps plus when to book a pro before the first heat wave hits.
Why Some Rooms Are Always Hot or Cold — And How to Fix It
Some rooms in your GTA home always feel too hot or too cold? Here's what causes uneven heating and cooling — and the DIY checks and pro fixes that work.
Ready when you are
Stop hoping it'll be quiet.
Start living comfortable.
Same-day estimates for most of the GTA. No high-pressure sales — just a clear quote and a clean install from a team that picks up the phone.