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
Whitby
Air Conditioning Installation in Whitby
Central AC and ductless mini-split installations by TSSA-certified professionals. Expert cooling solutions for every Whitby home, from Brooklin family homes to Port Whitby cottages. Since 1999.
Open 24 hours, 7 days a week. Emergency furnace and AC service.
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- TSSA certifiedLicensed & insured
- Since 1999Family-owned, East York
Trusted
Partner
Customer Reviews
Whitby AC Services
Expert Air Conditioning Installation for Whitby Homes
Whitby has grown fast over the last two decades. What started as a small lakeside town is now a sprawling Durham community with over 130,000 residents across Brooklin, Williamsburg, Rolling Acres, Pringle Creek, and the original downtown core. That growth means a huge mix of housing, from pre-war cottages in Port Whitby to 3,500 sq ft executive homes in Brooklin, and each needs a different cooling approach.
We install central AC and ductless mini-split systems across all Whitby neighbourhoods. Central AC is the best choice for homes with existing furnace ductwork. It provides whole-home cooling at a consistent temperature through your existing vents. For pre-1990 homes in Downtown Whitby and Port Whitby that lack ductwork, ductless mini-splits are the practical alternative, avoiding the $5,000 to $10,000 cost of installing new ducts.
Whitby installs divide at roughly Rossland Road. To the north, Brooklin has grown into a large subdivision of tall, open-lot houses where the builder fitted a single-zone system and the top floor has never kept up in July. To the south, Downtown Whitby, Port Whitby and Lynde Creek hold much older houses, some with stone foundations and low basement headroom, where the vent route and the condensate drain decide the job long before the equipment choice does. Pringle Creek and Williamsburg sit in between and are mostly on their second system.
Manual J load calculation with every quote
Central AC installation from supported manufacturers
Ductless mini-split installation
Multi-zone ductless systems
AC replacement and old-unit removal
Smart thermostat setup and programming
Refrigerant line set installation
Electrical disconnect and breaker work
Annual maintenance plans
Enbridge Sustain $0-down financing
24/7 Emergency
Real answer, day or night. Overnight calls carry a modest premium, quoted before the technician starts.
Upfront Pricing
A fixed price before any work starts. You approve it first.
Authorized Lennox Dealer
TSSA-certified, licensed and insured techs and full warranty support.
Rated on Google & HomeStars
Serving the GTA since 1999. Read our reviews on Google and HomeStars.
Equipment We Install
The Air Conditioners We Install in Whitby
Four of the central AC and ductless systems we install across Whitby: manufacturer-published efficiency ratings, no marketing numbers.
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
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
All specifications are published by the manufacturer. We install and service these systems across Toronto & the GTA.
See every model we installOur Process
How We Install Your New AC in Whitby
1
In-Home Assessment
We visit, measure the space, and perform a Manual J load calculation to size the system correctly.
2
Choose Your System
We walk through brand, efficiency, and budget options. No pressure, just the right fit for your home.
3
Installation Day
Our techs set the outdoor condenser, connect refrigerant lines, wire the electrical, and set up the thermostat.
4
Test and Clean Up
Full system test, temperature verification, walkthrough with you, and complete cleanup before we leave.
On the Estimate
What We Work Out Before Quoting a Whitby Install
The parts of the job that decide whether the system performs once it is in.
One Zone Rarely Suits Three Levels
Brooklin houses were built tall on a single thermostat. Before adding capacity we look at whether balancing or zoning is the honest answer.
Exposed Lots Change the Load
The newer north-end subdivisions have little wind break. That raises heat loss in winter and solar gain in summer, and it belongs in the calculation.
Vent Routes in Old Downtown Houses
Stone foundations and low headroom near the harbour make the vent path and the drain the real work. We look at both before quoting.
Replacing the Coil at the Same Time
Plenty of Pringle Creek homes have a newer condenser on an original coil. The pair never performs to its rating and the warranty assumes a match.
Setting Outdoor Units Above the Snow
North-facing open yards drift. A heat pump or condenser on a proper stand keeps the defrost drain clear through the winter.
Balancing After Installation
Builder systems are almost never balanced once the drywall is up. We set the dampers and check the split rather than leaving it at factory settings.
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 government rebate programs. As an Enbridge Sustain Trusted Partner, we make a new AC installation in Whitby affordable with $0-down financing on approved credit.
- No upfront cost: $0 down on approved credit
- Maintenance and repairs included for the term
- Buyout option: Sustain owns the equipment during the term
Common Questions
AC Installation Whitby: FAQ
Our Brooklin house bakes upstairs. Do we need a bigger air conditioner?
Usually not. A single-zone system in a tall house sends most of its air along the easiest path, which is the main floor. A larger unit makes the main floor colder and the bedrooms no better. We check return sizing on the upper level, balance the dampers, and look at continuous low-speed fan operation before recommending more capacity or zoning.
What does AC installation cost in Whitby?
Central air runs $3,500 to $5,500 depending on capacity, efficiency and any duct changes. Ductless starts around $3,000 for a single zone. Larger Brooklin homes sit at the top of that band or benefit from two smaller systems instead of one large one. Phone quotes are free and the written quote itemises anything beyond the equipment.
Can you install a system in an old downtown Whitby house?
Yes, and the venting and drainage are the parts worth talking about first. Condensing equipment vents through plastic pipe to an outside wall and produces condensate that needs a properly sloped drain. In a stone-foundation basement with low headroom, that routing is the real work, so it appears in the quote rather than as a surprise on install day.
How long are you on site for?
A straightforward central air installation is a single day, generally four to eight hours, covering the condenser, line set, electrical, thermostat and testing. A single-zone ductless install is shorter. Multi-zone ductless can run into a second day. We tell you which it is when we quote, not on the morning we arrive.
Is Whitby too far for you to install and then support?
No for installation and scheduled service, which are booked in advance and unaffected by the drive. Worth knowing for emergencies: we are about forty-five kilometres away, so a Durham-based company will reach you faster on a middle-of-the-night failure. If that matters more to you than anything else, we would rather say it now than after you have signed.
Get In Touch
Get a Free Installation Estimate in Whitby
Tell us about your home and we will set up an in-home assessment. Transparent pricing, no obligation, or call and talk to a real person now.
Call 24/7(416) 286-5665
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Last updated September 10, 2026