Lennox
ENERGY STARLennox ML14KC1
Merit® Series · Single-stage · ENERGY STAR®
14.3+SEER2
Efficiency
14.3+ SEER2
Cooling
Single-stage
Sound
As low as 73 dB
Refrigerant
R-454B
Same-Day AC Service in Whitby
Air Conditioning Repair in Whitby
When your AC dies mid-heatwave in Brooklin or Williamsburg, you need someone in Durham who can get there today. Megacity HVAC provides same-day AC repair across Whitby with TSSA-certified technicians, upfront pricing, and 27 years of experience.
Same-Day AC Repair
Serving All Whitby Neighbourhoods
TSSA Certified Technicians
5.0 Google & HomeStars
Customer Reviews·
5.0 / 5.0 · 104+ Google reviews
Whitby AC Experts
Reliable Air Conditioning Repair & Installation Across Whitby
Megacity HVAC has serviced Whitby homes for over 27 years. The newer Brooklin subdivisions tend to have 14 to 16 SEER central AC systems now hitting the 10 to 15-year replacement window. Older homes in Downtown Whitby and Port Whitby often lack ductwork entirely, making ductless mini-splits the better answer. Our technicians arrive with that local context built in — and trucks stocked with the parts needed to close most repairs in a single visit.
When repair is no longer the right investment, we install central AC and ductless systems from Lennox, Fujitsu, Goodman, Daikin, and Mitsubishi. As an Authorized Lennox Dealer and certified Enbridge Sustain Trusted Partner, we offer competitive pricing, extended warranties, and $0-down financing so upfront cost is not a barrier.
Central AC repair and diagnostics
Same-day emergency AC service
Central air conditioning installation
Ductless mini-split installation
Multi-zone ductless systems
AC replacement and removal
Annual AC maintenance and tune-ups
Refrigerant recharge and leak repair
Coil cleaning and inspection
Smart thermostat installation
Same-Day Service
We prioritize no-cooling calls and dispatch within hours across Whitby and all Durham Region.
Upfront Pricing
A fixed price before any work starts. The diagnostic fee applies toward the repair if you proceed.
Authorized Lennox Dealer
TSSA-certified, background-checked techs and full warranty support on every job.
5.0★ · 250+ Reviews
Top-rated on Google and HomeStars. Serving Durham Region homeowners since 1999.
Equipment We Install
The Air Conditioners We Install in Whitby
Central AC and ductless systems we install across Whitby and Durham Region — with manufacturer-published efficiency ratings.
York
ENERGY STARYork YXV (Affinity)
Affinity™ · Variable-capacity · ENERGY STAR®
up to 20SEER2
Efficiency
Up to 20 SEER2
Cooling
Variable-capacity
Sound
As low as 53 dBA
Compressor
Lifetime warranty
Mitsubishi Electric
ENERGY STARMitsubishi M-Series (MSZ-GS)
M-Series · Ductless inverter · ENERGY STAR®
up to 28.4SEER2
Efficiency
Up to 28.4 SEER2
Type
Ductless inverter
Sound
From 19 dB(A)
Setup
Single & multi-zone
KeepRite
KeepRite N5A8T
Performance · Two-stage
up to 18SEER2
Efficiency
Up to 18 SEER2
Cooling
Two-stage
Sound
As low as 69 dB
Refrigerant
R-454B
Payne
ENERGY STARPayne PA5S
PA5S · Single-stage · ENERGY STAR®
up to 16.5SEER2
Efficiency
Up to 16.5 SEER2
Cooling
Single-stage
Sound
As low as 73 dB
Sizes
1.5 – 5 tons
Kepler
Kepler Vortex 16
Vortex 16 · Single-stage
13.4SEER2
Efficiency
13.4 SEER2
Cooling
Single-stage
Refrigerant
R-410A
Warranty
10-yr parts + compressor
All specifications are published by the manufacturer. We install and service these systems across Toronto & the GTA.
Our Process
What to Expect From an AC Repair Visit in Whitby
1
Describe the Problem
Tell us the symptoms over the phone. We dispatch a tech with the right parts for your Whitby home.
2
Full AC Diagnostic
Refrigerant pressure, electrical testing, coil inspection, compressor and airflow checks on-site.
3
Upfront Quote
A clear explanation and a fixed repair price. You approve before any work starts.
4
Repair and Verify
We fix it, run a full cooling cycle, confirm the temperature drop, and clean up before we leave.
Diagnostics
AC Problems We Fix Every Day in Whitby
Most are solved same-day with parts we carry on our trucks across Brooklin, Williamsburg, and Port Whitby.
AC Not Cooling
Low refrigerant, dirty condenser coils, failing compressor, or a frozen evaporator coil. Common in Brooklin and Rolling Acres homes where outdoor units sit in full sun.
$150 – $600
AC Blowing Warm Air
Refrigerant leak, compressor issues, thermostat misconfiguration, or a clogged filter restricting airflow. We check every component on one visit.
$100 – $450
Water Leaking from AC
Clogged condensate drain line, frozen evaporator coil, or a cracked drain pan. Especially common in older Port Whitby and Downtown homes.
$100 – $350
AC Short Cycling
Turning on and off rapidly without completing a cooling cycle. Usually caused by an oversized unit, dirty filter, low refrigerant, or an electrical issue.
$100 – $400
Strange AC Noises
Grinding, squealing, buzzing, or banging from the indoor or outdoor unit. Typically a failing fan motor, loose components, or compressor problems.
$150 – $500
High Electricity Bills
If your hydro bill spikes every summer despite normal usage, your AC is losing efficiency. Older 8 to 10 SEER units use nearly twice the electricity of a modern 16 SEER system.
Tune-up or replacement
Brands We Install
Trusted Equipment Brands We Install & Service
Authorized Lennox Dealer — with experienced installation, repair, and maintenance across our supported HVAC and water-heater brands.
FUJITSU
JOHN WOOD
$0
Down
Trusted Partner
Lease-to-Own Through Enbridge Sustain
Standard air conditioners are not covered by current rebate programs — but as a certified Enbridge Sustain Trusted Partner, we install a new AC or heat pump in your Whitby home with nothing down.
- No upfront cost — $0 down on approved credit
- Maintenance and repairs included for the term
- Predictable, manageable monthly payments
Common Questions
AC Repair Whitby — FAQ
How much does AC repair cost in Whitby?
AC repair in Whitby typically runs $150 to $600 depending on the issue. Capacitor and contactor replacements land at $150 to $250. Refrigerant leak repairs, compressor work, and evaporator coil replacements range from $300 to $600. We provide upfront pricing after diagnosis and apply the diagnostic fee to the repair cost if you proceed.
Do you offer same-day AC repair across Whitby?
Yes. We dispatch same-day to all Whitby neighbourhoods including Brooklin, Williamsburg, Rolling Acres, Downtown Whitby, Port Whitby, Pringle Creek, and Blue Grass Meadows. During peak summer we prioritize no-cooling emergencies. Call (416) 286-5665 and a TSSA-certified technician is usually at your door within a few hours.
Should I repair or replace my Whitby home AC?
Replacement is typically the right call if your unit is over 10 years old, runs on R-22 refrigerant (banned and expensive to source), or if a single repair exceeds half the price of a new system. Many Whitby homes built in the 1990s and 2000s are now hitting that replacement window. A new 16 SEER central AC installs for $3,500 to $5,500 and pays back quickly through lower hydro bills.
How do Whitby summers affect AC systems?
Whitby summers are less humid than downtown Toronto but often hotter during heat waves, and outdoor condensers in newer Brooklin subdivisions sit in exposed, full-sun backyards. That combination accelerates wear on compressors and refrigerant seals. An annual maintenance tune-up catches small problems before they leave you without cooling on a 32°C Saturday.
Do you service ductless mini-splits in older Whitby homes?
Yes. Many pre-1990 homes in Downtown Whitby and Port Whitby lack ductwork, and ductless mini-splits are the most practical cooling solution. We repair and install single-zone and multi-zone systems from Lennox, Daikin, and Mitsubishi. Single-zone installations start at $3,000 and multi-zone configurations can cool 2 to 5 rooms from one outdoor unit.
Get In Touch
Get a Free AC Estimate in Whitby
Tell us what your AC is doing and we will get back to you fast. Same-day service available across Whitby and Durham Region — or call and talk to a real person now.
Call 24/7(416) 286-5665
Rated5.0★ on Google & HomeStars