Best HVAC Companies in Mississauga, Ontario - Cost & How to Hire Top Technicians?
Quick answer: There is no single best HVAC company in Mississauga. The right one is registered with TSSA for gas work, sends a certified gas technician, and holds an air conditioning certificate for any AC or heat pump job. In 2026, a Mississauga furnace replacement costs about $4,000 to $7,000, central air costs $3,500 to $7,500, and technicians bill $90 to $150 per hour. Get at least three written quotes before you hire.
Who are the best HVAC contractors in Mississauga?
The best HVAC contractor is the one with the right Ontario credentials, a clear written quote and an open slot when you need help. A ranking can't tell you that. Your system, your home and your timing decide it.
An HVAC contractor installs, repairs and maintains furnaces, boilers, central air conditioners, heat pumps and ductwork. A good one also sizes the system to your home and handles the permits.
Demand follows the seasons. Searches for furnace repair in Mississauga peak from December to March. Searches for AC repair peak from July to October. Book tune-ups in spring and fall, before those rushes.
How do you choose an HVAC contractor in Mississauga?
Check five things before you hire. Each one takes a few minutes and protects your home and your wallet.
- TSSA registration for gas work. Any business that installs or services a gas furnace, boiler or gas appliance in Ontario must be registered with the Technical Standards and Safety Authority (TSSA).
- A certified gas technician on site. The person who works on your gas line must hold a G2 or G1 gas technician certificate. A G3 technician may only work under supervision.
- An air conditioning certificate for AC and heat pump work. Refrigeration and air conditioning work falls under compulsory trade certification in Ontario. Look for a 313A certificate, or 313D for residential air conditioning.
- Insurance and WSIB coverage. Ask for proof of liability insurance and a WSIB clearance. Without them, you can be liable for an injury on your property.
- A written quote with details. The quote should name the equipment model, the scope of work, the permit, the warranty and the total. Ask whether the contractor ran a heat-loss calculation to size the system. Guessing by square footage leads to oversized units that short-cycle.
Then compare quotes line by line. Our guide on what to ask and look for when hiring an HVAC contractor lists the questions to ask.
What credentials do HVAC technicians need in Ontario?
The credential depends on the job. Gas work, refrigerant work and electrical work each have their own rules.
| Type of work | What Ontario requires | Where to confirm |
|---|---|---|
| Gas furnace, boiler or gas appliance | TSSA-registered contractor, and a G2 or G1 gas technician (G3 only under supervision) | TSSA public contractor lookup |
| Central AC, heat pump or refrigerant work | 313A or 313D certificate of qualification | Skilled Trades Ontario |
| New electrical circuit (for example, for a heat pump) | Electrical contractor authorized by the Electrical Safety Authority (ESA) | ESA contractor lookup |
| Business basics | Liability insurance and WSIB coverage | Ask for the certificates |
Ask the contractor to confirm in writing that the technician sent to your home holds the right certificate. A registered company is only half the picture. The person on site must be certified too.
How much do HVAC services cost in Mississauga in 2026?
A Mississauga furnace replacement costs about $4,000 to $7,000 installed. Central air costs $3,500 to $7,500. Replacing both together runs roughly $8,000 to $15,000. Technicians bill $90 to $150 per hour.
| HVAC service | Typical Mississauga cost (CAD) |
|---|---|
| High-efficiency gas furnace replacement | $4,000 β $7,000 |
| Central air conditioner installation | $3,500 β $7,500 |
| Furnace and central AC together | $8,000 β $15,000 |
| Air-source heat pump (central) | $5,500 β $12,000 |
| Ductless mini-split | $5,000 β $12,000 |
| Geothermal heat pump | $20,000 β $35,000+ |
| Technician hourly rate | $90 β $150 per hour |
| Diagnostic or call-out fee | $80 β $195 |
| Annual tune-up | $100 β $250 |
Common HVAC repairs give you a sense of scale.
| Common repair | Typical cost (CAD) |
|---|---|
| Furnace thermostat, igniter or flame sensor | $80 β $300 |
| AC capacitor replacement | $150 β $450 |
| AC condenser fan motor | $400 β $900 |
| Furnace heat exchanger | $1,500 β $3,500 (often triggers a replacement) |
| AC compressor | $1,800 β $3,500 (rarely worth it on an older unit) |
Emergency and after-hours calls cost more, often 1.5 to 2 times the standard rate. A planned swap in spring or fall costs less than a January breakdown. Condo units and older homes add time for access, ductwork and venting.
The prices mentioned above are approximate and for general guidance only. Actual costs may vary based on project size, site conditions, materials, location, and individual contractor rates. We recommend getting multiple quotes for an accurate estimate.
For a deeper breakdown by home size and efficiency rating, read our guide to the cost of a new furnace in Ontario.
What does the 2025 refrigerant change mean for your AC?
Your existing AC can keep running, but repairs on older units can cost more. As of January 1, 2025, new residential air conditioners and heat pumps sold in Canada use low-impact refrigerants such as R-32 and R-454B, not R-410A.
- R-410A systems are still legal. You can run, service and recharge one.
- R-410A refrigerant is getting pricier. Supply is shrinking as production is phased down.
- New refrigerants don't swap in. A system built for R-410A can't be converted to R-32 or R-454B.
- R-22 systems (built before about 2010) are past economic repair. A refrigerant leak on one points to replacement.
If your R-410A unit is under 10 years old and healthy, keep it and maintain it. If it is 12 years or older and develops a refrigerant leak, put the repair money toward a new system.
Which HVAC companies serve Mississauga?
These companies serve Mississauga and nearby parts of the GTA. They are listed alphabetically, not ranked. This is a starting point, not an endorsement. Confirm each company's TSSA registration and your technician's certificates before you hire.
| Company | Services listed |
|---|---|
| Air Factor Heating & Cooling | Seasonal tune-ups and system replacement |
| Air Flow Heating & Cooling Ltd. | Furnace repair, AC installation and annual heating maintenance |
| Air Makers Inc. | Installations and repairs across the GTA |
| Applewood Air Conditioning Ltd. | Residential and commercial HVAC systems |
| Dolphin Mechanical Services | Residential and commercial HVAC, duct cleaning and new system installation |
| Home Comfort Canada | Energy-efficient heating and cooling systems |
| HVAC-GROUP | Heating and cooling upgrades, tune-ups and repairs |
| Peel Heating & Air Conditioning | Furnace and AC installation, repair and service |
| Pure Air HVAC | Heating and cooling service |
| Raya Heating & Cooling Inc. | Diagnostics, seasonal maintenance and emergency repairs |
Do you run an HVAC business in Mississauga? Contact us to be considered for this list.
Disclaimer: UrbanTasker does not endorse any contractor or service provider listed here. You are solely responsible for background, license, and insurance verification and all due diligence. UrbanTasker is not liable for any damages, losses, or disputes arising between you and a service provider. For more information, read our Terms and Conditions.
What HVAC rebates are available in Ontario in 2026?
Ontario's Home Renovation Savings Program pays up to $7,500 for a cold climate air-source heat pump. The amount depends on the size of the heat pump. The unit must appear on Natural Resources Canada's qualified products list.
| Upgrade | Rebate |
|---|---|
| Cold climate air-source heat pump | Up to $7,500 |
| Ground-source heat pump | Up to $12,000 |
| Smart thermostat | $100 |
| Heat pump water heater (bundled stream) | $500 |
The program is run by Save on Energy and Enbridge Gas. The bundled stream starts with a home energy assessment and requires two or more upgrades. The Canada Greener Homes Loan stopped taking applications on October 1, 2025.
Rebate rules change often. Check Save on Energy and confirm eligibility before you sign a contract, not after. Ask each contractor whether they handle rebate paperwork.
Do you need a permit to replace a furnace or AC in Mississauga?
It depends on the job. A like-for-like swap often needs no building permit. A new system, or a change in fuel type, efficiency or capacity, usually does. Gas work always involves TSSA through your contractor.
The permit picture can involve three bodies:
- City of Mississauga: building permits for new or altered HVAC systems.
- TSSA: gas appliance work, handled through your registered contractor.
- ESA: electrical notifications, such as a new circuit for a heat pump.
Ask your contractor which permits apply and who files them. Confirm the rules with the City of Mississauga before work starts. Condo owners should also check with their board, since mechanical work may need approval first.
Should you repair or replace your furnace or AC?
Replace if the repair costs more than half of a new installed system, or if the unit is near the end of its life. Furnaces typically last 15 to 20 years. Central air conditioners last 12 to 15 years.
- Age: Furnaces past 15 years and ACs past 12 years deserve a replacement quote.
- Repair stack: Two repairs in two seasons point to a failing system.
- Rising bills: Higher energy bills with the same usage mean lost efficiency.
- Safety: A cracked heat exchanger or a carbon monoxide alarm means call a technician now.
How does hiring an HVAC contractor through UrbanTasker work?
You post your task once and compare quotes from local HVAC contractors. It is free to post. You see offers side by side, chat with contractors and choose the one that fits.
- Post your HVAC task. Describe the job and add photos of your unit.
- Get multiple quotes. Contractors respond with prices and availability.
- Compare and chat. Check profiles, ask questions and confirm credentials yourself.
- Hire and book. Choose the contractor and agree on the scope in writing.
Skip the call-around. One post brings the quotes to you.
What should Mississauga homeowners know about local HVAC work?
Mississauga homes bring a few local factors. Most of the city is served by Enbridge Gas for natural gas and Alectra Utilities for electricity. That matters for rebates and for heat pump wiring.
- Older housing stock: Many detached homes and semis built decades ago have aging furnaces and original ductwork. Ask for a duct check with any replacement quote.
- Condos: Units near the city centre often need board approval before mechanical work. Add weeks to your timeline.
- Winter and summer extremes: Mississauga needs both strong heating and reliable cooling. A heat pump covers both, and some homeowners pair one with a gas furnace.
- Maintenance: Book a furnace tune-up in the fall and an AC tune-up in the spring. Change furnace filters every one to three months.
HVAC Companies Mississauga, Ontario
Pick an HVAC company on credentials, a clear written quote and availability, not on a ranking. You will get better answers from HVAC companies in Mississauga if you prepare before you call. Note the age and model number of your furnace or AC, and describe what the system is doing. Take photos of the unit and its label. Companies can then give a sharper phone estimate, whether you need furnace repair in Mississauga on a cold night or AC installation before the first heat wave.
Decide your priority first. Do you want the lowest upfront price, lower energy bills, or one system that heats and cools? That answer tells you which quotes make sense and lets you compare HVAC contractors on the same terms. Ask each company for a start date, not just a price. A fast quote that books three weeks out won't help during a breakdown. If you are weighing furnace replacement against a heat pump, ask for both options in writing.
Keep a record of every quote, warranty and service visit. It makes your next tune-up easier and helps when you sell your home. HVAC in Mississauga is a seasonal business, so the contractors you contact in spring or fall are usually the ones with the most time for you.
Ready to compare HVAC quotes? Post your HVAC task on UrbanTasker and get free quotes from local contractors.
FAQs
How much do HVAC services cost in Mississauga?
Most Mississauga HVAC technicians charge $90 to $150 per hour. Some add a call-out fee of $80 to $195. A furnace replacement costs about $4,000 to $7,000 and central air about $3,500 to $7,500, both installed. Tax is extra.
How much does furnace replacement cost in Mississauga?
A high-efficiency gas furnace costs about $4,000 to $7,000 installed in Mississauga. Larger homes and premium models cost more. New venting, ductwork changes or a gas line upgrade add to the price.
How much does AC installation cost in Mississauga?
Central air conditioner installation costs about $3,500 to $7,500 in Mississauga. Homes that need ductwork changes or an electrical upgrade can cost more. A central heat pump costs $5,500 to $12,000 and also heats your home.
How do I know an HVAC company in Mississauga is certified?
Ask for proof and confirm it. Gas work needs a TSSA-registered contractor and a G2 or G1 gas technician. AC and heat pump work needs a 313A or 313D certificate from Skilled Trades Ontario. Also ask for liability insurance and WSIB coverage.
Do I need a permit to replace a furnace in Mississauga?
It depends on the job. A like-for-like swap often needs no building permit, while a new system or a change in fuel type, efficiency or capacity usually does. Gas work involves TSSA through your contractor. Confirm the rules with the City of Mississauga.
Should I repair or replace my air conditioner?
Replace it if a repair costs more than half of a new installed unit, or if the unit is 12 years or older with a refrigerant leak. Repair it if it is under 10 years old and the fix is small, such as a capacitor.
When is the best time to service or replace HVAC equipment?
Book tune-ups in spring for AC and in fall for furnaces. Replace equipment in spring or fall when contractors are less busy. Furnace repair demand peaks from December to March, and AC repair demand peaks from July to October.
Are heat pump rebates available in Mississauga?
Yes. Ontario's Home Renovation Savings Program pays up to $7,500 for a cold climate air-source heat pump. The amount depends on the heat pump size, and the unit must be on the qualified products list. Confirm current rules with Save on Energy before you buy.
How often should I service my HVAC system in Mississauga?
Service your system once a year. Book the furnace in the fall and the AC in the spring. A tune-up costs about $100 to $250 and is usually cheaper than an emergency repair. Change furnace filters every one to three months between visits.
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