AC Installation & Repair in Mississauga, Toronto & the GTA
TSSA-certified technicians available 24/7, $0 overtime fees, free in-home estimates. Same-day AC repair and installation across Toronto, Mississauga, and the GTA.
Book Your AC Service Before the Summer Rush
Most GTA homeowners wait until their AC breaks down in a July heat wave before calling. By then, wait times stretch to 5 to 7 days. Book your free AC assessment now and get ahead of the rush. Same-day appointments still available through May.
Book Free AssessmentOur Cooling Services
Our TSSA-certified technicians carry common parts on every truck. We complete most AC in a single visit, typically 1 to 3 hours. All jobs are quoted flat-rate before we start.
For Mississauga residents, visit our dedicated AC installation Mississauga and AC repair Mississauga pages for local pricing and same-day availability.
AC Installation
We size every AC with a Manual J calculation, then install the right unit for your home's square footage, insulation, and sun exposure. Lennox, Carrier, and Goodman available.
AC Repair
Our trucks carry refrigerant, capacitors, and common parts for most AC brands. Most repairs are diagnosed and completed the same day, no second visit needed.
AC Replacement
When repair is no longer cost-effective, we install a new high-efficiency unit, remove the old system, and handle the permit and disposal.
AC Maintenance
Annual tune-ups including coil cleaning, refrigerant check, condensate drain flush, and a 12-point written inspection report.
AC Tune-Up Mississauga & Toronto: $100 Until May 31
A flat $100 gets your system fully inspected and tuned before summer (regularly $149 - save $49 by booking before May 31, 2026). No hidden charges. Book in April or May to skip the June rush - our technicians spend 60 to 90 minutes on site and leave you with a written report.
- Coil cleaning (indoor and outdoor)
- Refrigerant level check
- Electrical connections inspection
- Thermostat calibration
- Filter check and replacement advice
- Condensate drain flush
- 12-point inspection with written report
- TSSA-certified technician
Why tune up before summer?
An AC that has sat idle all winter often has dirty coils, low refrigerant, or clogged drains. Catching these in spring costs $100 (limited-time promo, until May 31). Catching them during a July breakdown costs $400 to $900 and a week without cooling.
AC Systems We Install
EcoFrost installs and services all major types of air conditioning systems across the GTA. A new central AC typically costs $3,500–$6,500 installed, depending on the SEER rating and home size. Ductless mini-splits start at $2,800 and are ideal for homes without existing ductwork or for targeted zone cooling.
Central Air Conditioners
Whole-home cooling through existing ductwork. Quiet and efficient.
Ductless Mini-Splits
Perfect for homes without ducts or zone cooling. Energy-efficient.
Heat Pumps
Year-round comfort with heating and cooling. Highly efficient.
High-Efficiency Units
SEER ratings up to 26 for maximum energy savings.
Why Choose EcoFrost for Your AC?
EcoFrost has kept GTA homes cool for over 15 years. As an authorized Lennox, Carrier, and Goodman dealer, our technicians are factory-trained on the equipment they install. Every job comes with a written flat-rate quote, no surprise charges, and a workmanship warranty.
Even Cooling Throughout Your Home
Properly sized systems eliminate hot spots and maintain consistent temperature on every floor.
Energy Efficient
A 20 SEER unit uses roughly 30% less electricity than a 13 SEER unit over a full cooling season: real savings on every hydro bill.
Cleaner Indoor Air
Modern AC systems filter dust, pollen, and humidity. A meaningful difference for allergy sufferers through summer.
Rebates Available
Up to $10,000 in Canada Greener Homes and Enbridge rebates on qualifying heat pump installations. EcoFrost handles all paperwork.
Keeping GTA families cool and comfortable
Authorized Dealer for Leading Brands
Heat & Cool Your Home with One System
A cold-climate heat pump replaces both your furnace and AC in a single system. It heats down to -30°C and cools your home through summer. EcoFrost handles the Enbridge rebate application. With up to $10,000 back, many GTA homeowners recover the cost within 5 to 7 years.
- Rated for full operation down to -15C, still heats at -30C - built for Ontario winters
- 2-3x more efficient than electric baseboards
- Qualifies for Enbridge rebates up to $10,000
- Heating and cooling with a single system
Heat Pump vs. Traditional Systems
More Cooling Services Across the GTA
Dedicated service pages with local coverage, flat-rate pricing, and detailed scope of work.
AC Tune-Up: $100 (Save $49)
Annual 12-point AC inspection, coil cleaning, refrigerant check & written report.
Learn More →AC Replacement
Same-day quotes, TSSA-certified install, 0% financing. Lennox, Carrier & Goodman.
Learn More →HVAC Pricing Guide
Transparent flat-rate prices for AC repair, installation, and maintenance in the GTA.
View Pricing →Government Rebates
Up to $10,000 in Enbridge and Canada Greener Homes rebates on qualifying heat pumps and AC units.
See Rebates →Air Conditioning FAQs
Common questions about AC installation, repair, and cooling in the GTA.
The most common causes are a dirty air filter restricting airflow, low refrigerant due to a leak, a frozen evaporator coil, or a failing compressor. Start by replacing your filter. If the problem continues, call us - low refrigerant requires a certified technician to diagnose and recharge safely.
A standard central air conditioner replacement typically takes 4 to 6 hours. A new installation requiring ductwork may take one to two days. We offer same-day AC installation for most replacement jobs in the GTA.
AC sizing depends on your home's square footage, ceiling height, insulation, and sun exposure. A unit that is too small will run constantly and not cool properly. One that is too large will short-cycle, causing humidity issues. Our technicians perform a proper Manual J load calculation to recommend the right size.
A central air conditioner installation in Toronto typically ranges from $3,200 to $6,500 installed, depending on the unit's efficiency (SEER rating), brand, and any required electrical or ductwork upgrades. We offer free in-home estimates with no obligation.
SEER (Seasonal Energy Efficiency Ratio) measures how efficiently an AC unit cools. Higher SEER means lower operating costs. Ontario minimum is 13 SEER. We recommend 16 to 20 SEER for most GTA homes - the energy savings typically pay back the premium cost within 4 to 7 years.
We recommend an annual AC tune-up every spring before the cooling season begins. Regular maintenance extends equipment life by 3 to 5 years, improves efficiency, and catches small problems before they become expensive breakdowns during a July heat wave.
A ductless mini-split is an air conditioner (and often a heat pump) that does not require ductwork. It is ideal for room additions, older homes without ducts, garages, or any space where extending ductwork is not practical. They offer zoned control, quiet operation, and can be more efficient than central AC.
Yes. For most Ontario homeowners, a cold-climate heat pump is worth it. Modern heat pumps are 2 to 3 times more efficient than electric baseboard heating and can significantly reduce gas bills in a hybrid system. Up to $10,000 in combined rebates is available through Canada Greener Homes and Enbridge in 2026. Heat pumps also provide cooling in summer, replacing two systems with one.
Signs your AC is low on refrigerant include: warm air blowing from vents, ice forming on the refrigerant lines or indoor coil, a hissing or bubbling sound near the unit, and much longer cooling times. Low refrigerant always indicates a leak - simply topping it up without finding the leak will not fix the problem. Our TSSA-certified technicians will locate the leak, repair it, and recharge to the correct level.
Still have questions? Call us at (416) 835-4775.
Call (416) 835-4775What Customers Say About Our AC Service
Verified Google Reviews from homeowners across the GTA.
EcoFrost installed a new Lennox AC for us after our 23-year-old unit finally gave out. They quoted us a fair price, installed it the next day, and were professional throughout. Nice to have a reliable company in the community you can count on.
Joe C.
Mississauga
Extremely pleased with the professionalism and attention to detail. Nisar came in with knowledge and patience to answer all my questions and got us the best deal on AC. Customer satisfaction was clearly the priority from start to finish.
Prashant A.
GTA
Learn More About Heat Pumps & Cooling in Ontario
Guides written by EcoFrost technicians with real Ontario installation experience.
Are heat pumps worth it in Ontario?
Real costs, winter performance data, and savings breakdown for GTA homeowners.
Read the guide →GuideBest cold-climate heat pumps for Ontario winters
Top models reviewed to -30C with real Ontario winter performance data.
Read the guide →Rebates 2026Ontario heat pump rebates 2026: full guide
Canada Greener Homes, Enbridge, and Toronto Hydro programs explained.
Read the guide →AC & Heat Pump Service Areas
Find AC repair, installation, and heat pump services in your city.
Etobicoke · Scarborough · East York · North York
Erin Mills · Port Credit · Streetsville · Meadowvale
Bramalea · Springdale · Credit Valley · Heart Lake
Woodbridge · Thornhill · Maple · Kleinburg
Bronte · Glen Abbey · Kerr Village · Palermo
Aldershot · Brant Hills · Tansley · Millcroft
Westdale · Ancaster · Dundas · Stoney Creek
Agincourt · Malvern · Guildwood · Birchcliffe
Rexdale · Islington · Humber Valley · Centennial Park
Need AC Service?
Call us today for a free estimate on AC installation, repair, or maintenance.