Why Timing Matters
In the Greater Toronto Area, summer is peak season for AC installation. Contractors are busiest from June through August, and wait times can stretch to two weeks or more. If you are planning an AC installation, booking in spring or early summer will get you the best availability and often the best pricing.
Central AC vs Mini-Split
The two main options for GTA homeowners are central air conditioning and ductless mini-split systems. Central AC uses your existing ductwork to cool the entire home, while mini-splits are ideal for homes without ducts or for cooling specific rooms. Your choice depends on your home's layout, your budget, and whether you already have ducts.
Sizing: Bigger Is Not Always Better
One of the most common mistakes in AC installation is oversizing. An oversized unit will short-cycle, cooling the air too quickly without removing humidity, leading to a cold but clammy feeling. A properly sized unit runs longer cycles, which dehumidifies the air more effectively. Your contractor should perform a load calculation to determine the right size for your home.
SEER Ratings and Efficiency
SEER (Seasonal Energy Efficiency Ratio) measures how efficiently an air conditioner operates. Higher SEER ratings mean lower operating costs. In Ontario, the minimum SEER for new installations is 14, but units with SEER ratings of 16 to 18 offer better long-term savings. The higher upfront cost of a more efficient unit is often recovered through lower energy bills over time.
Costs to Expect
AC installation costs in the GTA vary based on the size of the unit, the complexity of the installation, and whether ductwork needs to be modified. A standard central AC installation typically ranges from $3,500 to $7,000 including the unit and installation. Mini-split systems start around $3,000 for a single-zone system. Always get a written quote that includes all costs.
Rebates and Incentives
There are often rebates available for high-efficiency AC installations in Ontario. The Canada Greener Homes Grant and various Enbridge Gas rebate programs can offset a portion of your installation costs. Check current program availability before you book, as programs change periodically.
What to Expect on Installation Day
A standard central AC installation takes one day. The outdoor unit is placed on a pad beside your home, the indoor coil is installed in your furnace, refrigerant lines are run between the two, and the system is charged and tested. Your installer should also verify proper airflow and thermostat operation before leaving.
Maintenance After Installation
To keep your new AC running efficiently, change your furnace filter regularly, keep the outdoor unit clear of debris, and book an annual maintenance check. Regular maintenance extends the life of your system and keeps it running at peak efficiency. We offer maintenance plans for GTA homeowners to make this easy.