
If you’re considering cooling your home, having an idea of the cost to install air conditioning system is a valuable starting point. Here in this post, we will look at the average installation prices in Ontario, discuss how home size and system type affect price, and outline other services that can affect your total cost.
- Average Cost to Install an Air Conditioning System in Ontario
- Cost by Home Size
- Additional Cost Factors
- Optional Services That Affect Cost
- Rebates and Energy Efficiency Incentives in Ontario
- Choosing the Right Installer
If you need help choosing the right air conditioning system and want expert installation you can trust, contact Service 1st Heating and Cooling—we’re here to keep your home cool and comfortable all summer long.
Cost to Install Air Conditioning System in Ontario
1. Average Cost to Install an Air Conditioning System in Ontario

Cost to Install Air Conditioning System in Ontario: It can vary greatly depending on several different factors.
The installation of a central air conditioning system in Ontario can vary greatly in price based on several factors that include the size of your house, the efficiency and type of system, and any other services needed. Prices may differ according to the particular needs of your house and the system installed.
Installation Costs – Factors That Influence
There are a few significant factors that can influence the overall installation cost of an air conditioning system:
Type of System:
Central air conditioners are standard, but alternative systems like ductless mini-split systems may be a more suitable option for homes without installed ductwork.
Home Size:
Larger homes require systems with a higher cooling capacity, which can increase costs. You can learn more about how home size affects the cost to install your air conditioning system in the following section.
Energy Efficiency:
More efficient units have higher Seasonal Energy Efficiency Ratio (SEER) ratings but typically cost more initially.
Installation Complexity:
Houses requiring new ductwork, electrical work, or special architectural features can equate to additional labor and material costs.
It is advisable to contact a professional HVAC contractor to assess your home’s specific requirements and obtain a correct estimate according to your situation.
2. Cost Based on Home Size

Larger homes require larger systems with increased cooling capacity.
The cost to install an air conditioning system in Ontario can vary significantly based on how large your home is. Larger homes need larger systems with increased cooling capacity, which can contribute to equipment and installation costs. The following is a rough breakdown of estimated costs based on home size:
Small Homes (Less Than 1,500 sq. ft.):
- Estimated Cost Range: $ – $$
- System Capacity: Typically 1.5 to 2.5 tons (18,000 – 30,000 BTUs)
- Considerations: Lower-capacity units can cool smaller houses easily. These units are less expensive; however, ceiling height and insulation quality can influence the capacity required.
Medium Homes (1,500 – 2,500 sq. ft.)
- Estimated Cost Range: $$ – $$$
- System Capacity: Typically 2.5 to 3.5 tons (30,000 – 42,000 BTUs)
- Considerations: Mid-sized homes can utilize mid-grade systems that are a balance between efficiency and cost. Installation of a higher SEER-rated unit can save energy costs in the long run.
Large Homes (2,500+ sq. ft.)
- Estimated Cost Range: $$$ – $$$$+
- System Capacity: Typically 4 tons and above (48,000+ BTUs)
- Considerations: Larger homes are likely to require high-capacity systems, which are more expensive. Also, the homes can be multi-zoned or multi-level, and more complex ductwork and installation are needed.
Note: These are based on typical installation circumstances and can vary based on the specific needs of your home. For example, installing a central air conditioner in a home with existing ductwork may be less expensive than in a home that requires new ducts.
3. Additional Cost Factors

Your choice to install central air conditioning, ductless mini-split systems, or heat pumps significantly impacts both installation costs and long-term energy efficiency.
Beyond your home’s size, several other factors can influence the total cost of an air conditioning system installation in Ontario. These factors are the type of system, complexity of installation, and geographical variations in contractor rates.
a. System Type
Your choice to install central air conditioning, ductless mini-split systems, or heat pumps significantly impacts both installation costs and long-term energy efficiency.
Central Air Conditioning:
Ideal for homes with existing ductwork, central AC systems typically cost between $ – $$$$, depending on the efficiency and size of the unit.
Ductless Mini-Split Systems:
Ideal for homes without ductwork or for room-by-room cooling, these systems typically cost between $$ – $$$ per indoor unit (head). Multi-zone setups, which can cool several rooms, can cost more.
Heat Pumps:
Supplying both heat and cool air, heat pumps are an efficient option. Ductless air-source heat pumps cost from $$ – $$$ per head, and centrally ducted systems from $$$$$ – $$$$$$$.
Energy Efficiency Ratings (SEER)
The Seasonal Energy Efficiency Ratio (SEER) is a measure of air conditioner efficiency. Higher SEER ratings indicate greater energy efficiency but can be more costly initially.
- SEER 14–16: Standard efficiency; lower initial cost.
- SEER 18+: High efficiency; higher initial cost but lower operating cost in the long term.
Purchasing a system with a high SEER rating can mean big energy savings, especially in homes that are located in hot climates.
b. Installation Complexity

Cost to Install Air Conditioning System in Ontario: Older homes may need electrical system updates.
Complexity of design and infrastructure of your house may affect the installation cost:
- Older Homes: They may require electrical system updates or be modified to accommodate new equipment.
- Limited Access Areas: It requires more time and money to place systems in attics, crawl spaces, or basements.
- Ductwork Modifications: Homes lacking ducts or having older ducts may need new installations or upgrades, which can add up to your final cost.
c. Contractor Costs & Location
HVAC installation labour costs can vary across Ontario:
- Urban Centres (e.g., Greater Toronto Area): Higher demand and cost of living in urban centres like the GTA can mean higher labour rates.
- Rural Centres: Rural areas usually have lower base rates but these can be offset by travel expenses and fewer contractors available, which can ultimately cancel out your savings on labour.
It is recommended to obtain a number of quotes from qualified licensed individuals to ensure competitive pricing and quality of work.
Being aware of these other factors can help you make knowledgeable decisions when planning for air conditioning installation, both for your comfort and your budget
4. Optional Services That Affect Cost

Cost to Install Air Conditioning System in Ontario: Installing ductwork can add to your cost.
When installing a new air conditioning system in Ontario, several optional services can enhance performance, improve indoor air quality, and extend the lifespan of your HVAC system. These services, while beneficial, can also add to the overall installation cost.
a. Ductwork Renovations or Installation
For homes lacking existing ductwork or with outdated systems, installing or upgrading ducts is essential for central air conditioning. The cost varies based on home size, layout, and duct material.
Factors influencing cost include the type of ducts used (e.g., flexible vs. rigid), accessibility of installation areas, and whether the project involves new construction or retrofitting an existing home.
b. Duct Cleaning
If you’re integrating a new air conditioning system with existing ductwork, especially in older homes, professional duct cleaning is advisable to ensure optimal air quality and system efficiency.
The final price depends on factors such as the size of your duct system, the level of contamination, and the ease of access for cleaning professionals.
c. Air Filtration & Indoor Air Quality Upgrades

Air filtration can significantly improve indoor air quality.
Enhancing your HVAC system with advanced air filtration can significantly improve indoor air quality, benefiting those with allergies or respiratory concerns. These include:
- HEPA Filters: These filters capture and trap microscopic particles in the air that can harm your health.
- UV Light Systems: These systems offer additional protection against airborne pathogens by reducing the presence of mould and other bacteria in your HVAC unit.
Investing in these upgrades can lead to a healthier living environment by reducing pollutants, allergens, and microbial growth within your home’s air system.
d. Heating System Integration or Upgrade
When installing a new air conditioning system, it’s an opportune time to assess your heating system’s condition. Upgrading or integrating heating solutions can enhance overall HVAC efficiency. Dual System Installation (A/C + Furnace): You may find it less expensive to install both a new furnace and air conditioner at the same time.
Combining installations can offer cost savings and ensure both systems are compatible, leading to improved energy efficiency and comfort throughout the year.
Considering these optional services during your air conditioning installation can lead to long-term benefits in comfort, air quality, and system performance. However, they also represent additional investments, so it’s essential to evaluate their necessity based on your home’s specific needs and your budget.
5. Rebates and Energy Efficiency Incentives in Ontario

Cost to Install Air Conditioning System in Ontario: Government rebates can help offset your total cost.
Ontario homeowners may qualify for government and utility rebate programs that offset the price of installing energy-efficient air conditioning systems. These incentives can significantly reduce up-front costs, making energy-efficient upgrades more accessible.
Home Renovation Savings Program
The Home Renovation Savings™ program, launched by Enbridge Gas and Save on Energy with the support of the Ontario Government, provides rebates for energy-efficient upgrades. The program is also versatile, allowing homeowners to choose single or bundled upgrades for optimum savings.
Important Things to Keep in Mind
Program Availability: Rebate programs can be altered and have limited budgets. It is essential to verify the status of any program before making choices.
Eligibility Criteria: Many programs require a pre-retrofit energy audit conducted by an accredited energy advisor.
Application Timelines: Ensure you submit required assessments and applications within specified timelines to get rebates.
Since these programs keep on changing, we suggest that you talk to a local heating and cooling professional, such as Service 1st Heating and Cooling, for the most up-to-date information and rebate application advice.
6. Choosing the Right Installer

Always hire a TSSA-registered (Technical Standards and Safety Authority) and licensed HVAC technician.
Selecting the right HVAC installer is just as important as choosing the right air conditioning system. A high-quality installation ensures your system runs efficiently, lasts longer, and maintains manufacturer warranties. Here are key considerations to keep in mind:
Certified and Licensed Technicians Matter
Always hire a TSSA-registered (Technical Standards and Safety Authority) and licensed HVAC technician. In Ontario, this certification ensures that the installer meets provincial safety standards and is qualified to work on gas appliances and refrigeration systems. Improper installation by an unlicensed contractor can result in safety hazards, voided warranties, and higher operating costs over time.
Work With a Trusted Local Company
Choosing a local HVAC company with a strong reputation is crucial. Look for businesses that have been operating in your community for several years or more. A well-established company is more likely to stand by their work, provide reliable customer service, and be available for follow-up maintenance or warranty support.
To evaluate a company’s reputation:
- Read online reviews on platforms like Google, HomeStars, and the Better Business Bureau.
- Ask for references or case studies.
- Check if the company has received industry certifications or local awards.
Get Multiple Quotes and Understand Warranties
Before deciding on a contractor, request multiple quotes to compare pricing, included services, and equipment brands. Be wary of offers that seem too good to be true—they may reflect lower quality products or rushed labour.
Also, make sure to review:
- Labor and equipment warranties (many brands offer 10-year warranties if registered after installation).
- Maintenance requirements tied to warranties.
- Any extended warranty options or service plans available through the installer.
Taking the time to choose a qualified, experienced installer will give you peace of mind—and a cooling system that delivers reliable comfort for years to come. For professional guidance and quality installation, consider contacting a reputable local provider like Service 1st Heating and Cooling.
Trust Service 1st for Your Air Conditioner Installation and Maintenance

Service 1st Heating and Air Conditioning is the trusted choice for homeowners in the Cambridge region.
Regular professional maintenance is the key to keeping your air conditioner in top shape. It gets the best out of your system, prevents costly repairs, and extends the life of your system. While there are a few things you can do on your own, a professional tune-up provides your AC with the thorough inspection and service it requires to operate reliably.
Don’t wait until the summer to find out your air conditioner isn’t working right. Have a professional tune-up now or sign up for a maintenance agreement for peace of mind year-round, more energy savings, and priority scheduling. Call Service 1st Heating and Cooling to make your appointment!
When it comes to professional HVAC maintenance, repairs, or replacements, Service 1st Heating and Air Conditioning is the trusted choice for homeowners. Here’s why:
- Expert Diagnosis and Repairs: Our skilled technicians quickly identify and resolve HVAC issues, restoring comfort and efficiency to your home.
- Comprehensive Maintenance Plans: Regular maintenance ensures your system operates at peak performance, prolonging its lifespan and preventing costly breakdowns.
- Custom Replacement Recommendations: If your system needs upgrading, we provide tailored advice to help you choose the perfect HVAC system for your home’s size, needs, and budget.
- Energy-Efficient Solutions: We specialize in modern HVAC systems designed to save energy and reduce utility bills, including options with smart technology.
- Customer-Centric Service: We prioritize your satisfaction, offering transparent pricing, timely service, and expert guidance every step of the way.
Don’t wait until small issues become major problems. Contact Service 1st Heating and Air Conditioning for expert maintenance, repairs, and HVAC replacements tailored to your needs. Schedule your HVAC system maintenance or consultation with Service 1st today and experience the difference of working with a trusted professional team!



What Our Customers Are Saying...
“Chris was absolutely amazing!! He took the time to explain exactly what my issue was with my furnace. Very knowledgeable and very patient in his explanations. Service 1st you have a valuable team player. Will definitely recommend Service 1st to family and Friends!! I found all service technicians very informative and very professional. I had the ducts in my house cleaned, my gas fireplace tuned up and a whole new furnace and heat pump installed. I would highly recommend Service 1st!!”