Air Conditioning Repair Mississauga & the GTA Area
Air Conditioning Installation & Repair in Mississauga & the GTA
Air Conditioning
For over 40 years, Furnace King Home Services has been the trusted name for air conditioning in Mississauga and across the Greater Toronto Area. As a Trane Comfort Specialist dealer, we deliver factory-trained expertise on every installation, repair, and maintenance call — backed by licensed, insured technicians and transparent, upfront pricing.
Choosing the right system starts with a proper assessment. A unit that is too small runs constantly without reaching a comfortable temperature, and an oversized one cycles on and off too often, leaving uneven temperatures and excess humidity. Our technicians perform a detailed Manual J load calculation — factoring in square footage, insulation quality, window count, ceiling height, and layout — to recommend the ideal size for your home. Every installation includes a post-install inspection, system commissioning to verify proper refrigerant charge and airflow, and a walkthrough of your new thermostat and maintenance schedule, backed by comprehensive warranties on both parts and labour.
We proudly serve homeowners in Mississauga, Brampton, Etobicoke, Oakville, Burlington, Milton, Toronto, Vaughan, Richmond Hill, Markham, Caledon, and Scarborough. Whether you need a brand-new central AC installation, a heat pump for year-round heating and cooling, or a ductless mini-split for a room addition, Furnace King has the right solution at the right price.
Use our HVAC cost estimator to see pricing options for your home, or explore our heating services to keep your family comfortable all year round. Call (905) 564-5464 for a free in-home consultation. You can also see what homeowners ask us about cooling in our Mississauga HVAC call data.
Types of Air Conditioning Systems
Understanding the different types of air conditioning systems helps you make the right investment for your home. Here are the three most popular options for GTA homeowners. Not sure which is right for your home? Read our guide on how to choose the right air conditioner:
Central Air Conditioning
Central AC is the most common cooling solution in Mississauga and GTA homes with existing ductwork. Modern units feature SEER2 ratings from 14 to 24, meaning today’s systems use significantly less electricity than models from even 10 years ago. A properly sized central system cools your entire home evenly and quietly, with the outdoor condenser unit placed away from living spaces. Central AC pairs perfectly with your existing furnace and ductwork, making it the most cost-effective option for most homes. Read our central AC installation guide for more details.
Ductless Mini-Split Systems
Ductless mini-splits are ideal for homes without ductwork, room additions, finished basements, and converted garages. Each indoor unit provides independent zone control, so you only cool the rooms you use — eliminating energy waste in unoccupied spaces. With SEER2 ratings of 18 to 24 and whisper-quiet operation at just 19 decibels, ductless systems combine flexibility with top-tier efficiency. Installation is minimally invasive, requiring only a small hole in the wall for the refrigerant line.
Heat Pumps for Cooling
A heat pump delivers both cooling in summer and heating in winter using a single outdoor unit. Modern cold-climate heat pumps operate efficiently down to -25°C, making them a practical choice for Ontario winters. Heat pumps may qualify for Ontario’s Home Renovation Savings rebates, making them an economical choice for homeowners upgrading older systems. Check our AC sizing guide to find the right capacity for your home.
Why Choose Furnace King for Air Conditioning?
Furnace King carries leading-edge air conditioning products from the brands homeowners trust most. As a Trane Comfort Specialist, we offer Trane’s full lineup of central air conditioners, heat pumps, and ductless systems, and we also install and service units from Lennox, Carrier, Goodman, Amana, and Daikin, so you always have options that fit your home and budget. Each system we recommend is selected for your home’s specific needs, not a one-size-fits-all approach.
Homeowners across the GTA choose Furnace King for air conditioning installation and repair because of our commitment to honest service and lasting results:
- Over 40 Years of Experience — Family-owned, with thousands of AC systems installed across Mississauga and the GTA.
- Trane Comfort Specialist — An exclusive designation earned through verified customer satisfaction, ongoing technician training, and sales of high-efficiency equipment.
- Upfront, Flat-Rate Pricing — You approve the cost before we start. No hourly surprises. No hidden charges.
- Licensed & Insured Technicians — Every team member holds a valid TSSA certification and carries full liability insurance.
- Flexible Financing — Easy monthly payments with promotional no-interest periods on qualifying units, whether you are replacing a failing system or upgrading to a higher-efficiency model. We walk you through every option and the long-term energy savings, with no pressure.
- 24/7 Emergency Service — Round-the-clock availability for urgent AC breakdowns throughout the Greater Toronto Area.
Ontario AC Rebates & Energy Savings
Ontario homeowners have rebate and savings options to check when upgrading to a high-efficiency air conditioning system or heat pump:
- Home Renovation Savings — Ontario’s current Save on Energy program offers rebates on eligible heat pumps. The amount depends on the equipment and its installed capacity. The former federal Canada Greener Homes Grant no longer accepts new applicants.
- Energy Star Savings — Upgrading to an Energy Star certified air conditioner can reduce your cooling costs by 15 to 20 percent compared to a standard-efficiency unit, saving you hundreds of dollars each summer.
Furnace King can help you navigate the rebate application process. Enbridge’s former Home Efficiency Rebate has ended: Enbridge Gas now delivers Home Renovation Savings together with Save on Energy, and single heat pump upgrades under that program skip the home energy assessment. Because program rules and amounts change, we recommend confirming current eligibility for your exact equipment on the official program site before you count a rebate in your budget. Call (905) 564-5464 and we will help you work out which options fit your project.
AC Repair and Maintenance
From first-time installations to emergency breakdowns, Furnace King delivers complete air conditioning services in Mississauga and the surrounding GTA. Our registered and certified technicians handle every aspect of your cooling system — so you always have a single, trusted team to call.
Every service call begins with a thorough diagnostic inspection. We test airflow, refrigerant levels, electrical connections, capacitor health, and thermostat calibration before providing a transparent, written quote — no hidden fees, no surprises. If you need AC repair in Mississauga, we carry common replacement parts on our trucks to complete most repairs in a single visit, saving you the cost and inconvenience of a second appointment.
We also offer 24/7 emergency air conditioning service because breakdowns never happen at a convenient time. Whether your compressor fails on the hottest day of July or your system starts leaking refrigerant overnight, our emergency line is always open. Our average response time for emergency calls in Mississauga is under two hours.
For homeowners who want to prevent those urgent calls, regular preventive maintenance is the best investment you can make. Annual tune-ups catch small problems before they become expensive repairs, improve efficiency by up to 15 percent, and extend the life of your unit by several years. Check out our AC maintenance guide to keep your system running at peak efficiency all summer long. We also offer same-day service availability for urgent repairs and flexible scheduling for installations and maintenance.
All of our registered and certified technicians offer the following air conditioning Mississauga services:
Before You Call: Quick Fixes When Your AC Stops Cooling
If your air conditioner stops cooling, a few safe checks can solve the problem or tell you it’s time for a technician:
- Check the thermostat. Make sure it’s set to Cool, the temperature is set a few degrees below the room temperature, and the batteries aren’t dead.
- Check the breaker and the outdoor disconnect. Reset a tripped AC breaker once. If it trips again, leave it off and call us, because repeated trips can point to an electrical or compressor problem.
- Replace a dirty air filter. A clogged filter chokes airflow, which can make the system blow warm air or freeze the indoor coil.
- Thaw a frozen coil. If you see ice on the refrigerant lines or the indoor coil, switch the cooling off and run the fan only until the ice melts. If it freezes again, the cause is usually low refrigerant or an airflow problem that needs a technician.
- Clear the outdoor unit and open your vents. Remove leaves, grass clippings and anything stacked against the condenser, and make sure supply registers and return grilles aren’t closed or blocked.
Call a licensed technician if you hear hissing or grinding, smell burning, see water pooling around the indoor unit, or the system still won’t cool after these checks. Refrigerant work in Ontario must be done by a certified technician. For urgent breakdowns, see our emergency HVAC services or call (905) 564-5464.
Air Conditioning Emergency? Call Us 24/7
We are available 24-7. Click below to access our emergency repair services for your air conditioning systems.
Frequently Asked Questions About Air Conditioning
How often should I service my air conditioner?
Once a year, ideally in spring before the cooling season. A yearly tune-up keeps the system efficient, helps it last longer and catches small problems before they turn into a breakdown on a hot day.
How much does a new air conditioner cost?
It depends on the size of the unit, its efficiency rating and how complex the installation is. Our HVAC cost estimator gives a starting range for central air of $3,000 to $10,000 before rebates. After we see your home, you get a written quote and approve the cost before we start.
What size air conditioner do I need?
The right size depends on your home’s square footage, insulation, windows and layout. An undersized unit runs constantly and an oversized one switches on and off too often, so we do a load calculation (Manual J) to size the system to your home.
Can I get a rebate on a new air conditioner?
Ontario’s Home Renovation Savings program offers rebates on eligible heat pumps, which cool your home in summer and heat it in winter. Furnace King is listed on the program’s heat pump contractor directory, so ask us whether the system you’re considering qualifies. The Canada Greener Homes Grant is closed to new applicants.
When should I replace my air conditioner instead of repairing it?
Consider replacing it if it’s more than 10 to 15 years old, needs frequent repairs, cools unevenly or still uses R-22 refrigerant, which has been phased out in Canada. We’ll check your system and walk you through repair versus replacement.
Is ductless air conditioning a good fit for my home?
Ductless mini-splits suit homes without ductwork, additions, converted garages and rooms that are hard to keep cool, and they let you set different temperatures in different rooms. They run quietly and avoid the energy lost through ducts. We install ductless systems across Mississauga and the GTA.
How much does AC repair cost?
It depends on the part that failed, the age of the system and the labour involved. We test the system first and give you a written quote before any repair starts, and our trucks carry common parts, so most repairs are finished the same day we arrive.