Cool, reliable comfort for every Durham home.
From new AC installs and efficient upgrades to fast repairs and seasonal tune-ups, we keep your home cool and comfortable through the hottest Durham summers — with upfront pricing and clean, careful work.
Cooling that keeps up with Ontario summers.
When Durham summers turn hot and humid, a reliable air conditioner is what keeps your home livable. Air Comfort Guys installs, repairs and maintains central air conditioning for homeowners across Whitby, Oshawa, Ajax, Pickering and the rest of Durham Region — so you stay cool, comfortable and efficient all season.
Whether you’re replacing an aging AC, upgrading to a high-efficiency system, or you need a fast repair on the hottest day of the year, we give you clear options, upfront pricing, and clean, careful work — every time.
Everything your home’s cooling needs.
Install, upgrade, repair and maintain — one team keeping your home cool and efficient all summer long.
AC Installation & Replacement
High-efficiency central air conditioners, sized right for your home so you get even, quiet cooling and lower energy bills.
High-Efficiency Upgrades
Trade an old, energy-hungry AC for a modern high-efficiency system that cools better and costs less to run.
AC Repairs
Fast, honest diagnostics when your AC quits or can’t keep up — we get you cool again and tell you exactly what happened.
Maintenance & Tune-Ups
Seasonal tune-ups that keep your AC efficient and reliable — and ready to go before the first heat wave hits.
Cooling done right, from first call to final check.
Upfront, honest pricing
You’ll know your options and the exact cost before we start. No surprises, no pressure selling.
Fast when it matters
We answer, we show up, and we keep you posted — because a home without cooling in a heat wave can’t wait.
Clean, careful installs
We protect your floors, work tidy, and leave your home exactly as we found it.
Right-sized for your home
We size and spec your system properly — never upselling you into equipment you don’t need.
What size air conditioner does my home need?
As a rough guide, homes need about 20 BTU of cooling per square foot — so a 1,500 sq ft home needs roughly a 2.5-ton air conditioner. But the right size also depends on your insulation, windows, ceiling height and layout, which is why a proper in-home load calculation is the only way to size it exactly.
| Home size | AC size | Cooling capacity |
|---|---|---|
| Up to 1,000 sq ft | 1.5 tons | ~18,000 BTU |
| 1,000–1,500 sq ft | 2 tons | ~24,000 BTU |
| 1,500–2,000 sq ft | 2.5 tons | ~30,000 BTU |
| 2,000–2,500 sq ft | 3 tons | ~36,000 BTU |
| 2,500–3,000 sq ft | 3.5 tons | ~42,000 BTU |
| 3,000–3,500 sq ft | 4 tons | ~48,000 BTU |
Bigger isn’t better. An oversized AC short-cycles, cools unevenly and wears out faster. We run a proper load calculation so your system is sized right for your home.
Get a free estimate →Getting comfortable is simple.
Book your estimate
Call, text, or send the form. We’ll set up a free in-home visit at a time that works for you.
Get clear options
We assess your home and give you honest recommendations with upfront pricing — no pressure.
We install clean
On time, tidy, and done right — with your home protected and left exactly as we found it.
Enjoy the comfort
Settle into a perfectly comfortable home — and we’ll follow up to make sure it stays that way.
Cooling across Durham Region.
Based in Durham and built for it. We’re growing across the region — and expanding into the wider GTA as we go. Not sure if you’re in our area? Send your postal code and we’ll tell you right away.
See all areas →Answers before you call.
How much does a new air conditioner cost in Durham?
Most new central AC installations in Durham fall between roughly $3,500 and $7,000, depending on the size and efficiency of the system and your home’s setup. We give you an exact, upfront quote after a free in-home assessment — no guessing.
How long does a central AC installation take?
Most air conditioner replacements are completed in a single day. If ductwork or electrical changes are needed, it can take a little longer — we’ll give you a clear timeline before we start.
Why is my AC not cooling?
Common causes include a dirty filter, low refrigerant, a frozen coil, a tripped breaker, or a failing capacitor or compressor. Some fixes are simple, others need a technician. If your AC is running but not cooling, turn it off to avoid damage and book a diagnostic — we’ll find the cause fast.
How long does an air conditioner last?
A well-maintained central air conditioner typically lasts 12 to 15 years. If yours is in that range and needing frequent repairs, a free assessment will tell you whether a repair or a replacement makes more sense.
How often should I have my AC serviced?
Once a year, ideally in spring before cooling season. An annual tune-up keeps your AC efficient, helps it last longer, protects your warranty, and catches small issues before the first heat wave.
Do you offer financing on new air conditioners?
Yes — flexible monthly payment options are available on qualifying installations, subject to approval. We’ll walk you through the real terms during your estimate so you can choose what fits your budget.
Ready for cool, reliable comfort?
Book a free, no-pressure in-home estimate and get an honest recommendation for your home — usually within one business day.