Right-sized cooling
We evaluate the home and existing setup to recommend a cooling approach that supports consistent room-to-room comfort.
Air Conditioning
Stay Cool All Summer — Efficiently
Keep your home comfortable through every GTA heat wave with cooling designed around your space, lifestyle, and budget. From precise system replacements to responsive repairs and seasonal maintenance, our licensed team delivers dependable comfort with clear recommendations at every step.
24/7 Emergency Service
Licensed & Insured
Lennox Authorized Dealer
25+ Years Experience
Air Conditioning Services
AC Installation
Expert installation of central air conditioning systems sized correctly for your home. Proper load calculations ensure maximum efficiency and comfort — no oversizing, no undersizing.
AC Repair
Fast diagnosis and repair of all AC brands. Refrigerant recharge, compressor issues, electrical faults, frozen coils — we fix it right the first time with parts on the truck.
Annual AC Tune-Up
Pre-season maintenance including coil cleaning, refrigerant check, electrical inspection, and thermostat calibration to keep your AC running at peak efficiency all summer.
Emergency Cooling
24/7 emergency AC service. No cooling in a heatwave? We respond fast across the entire GTA — same-day service available for urgent situations.
Smart Thermostat Integration
Upgrade to a Lennox iComfort® S30 smart thermostat for remote control, scheduling, and energy monitoring from your smartphone — maximizing both comfort and savings.
Ductless Mini-Splits
Ductless mini-split installation for additions, garages, sunrooms, and spaces without existing ductwork. Efficient, quiet, and flexible cooling where you need it.
Explore Other Services
Cooling that works with the whole home
Build a complete summer comfort plan.
A central air conditioner performs best when the system around it is considered too. During an AC consultation, Global Comfort Air can review cooling capacity, airflow, humidity control and compatible smart controls to help create a more balanced result.
Humidity-aware comfort
Cooling is about more than temperature. We can discuss how airflow and humidity management affect how your home feels.
Controls that fit your routine
Compatible smart controls can make it easier to manage schedules, comfort settings and day-to-day operation.
28
SEER — Top Lennox Rating
4–6h
Typical Installation Time
24/7
Emergency Service
100%
Satisfaction Guaranteed
From Quote to Cool
Our AC Installation Process
01
Free Home Assessment
We visit your home to measure your cooling load, inspect existing ductwork, and understand your comfort priorities before recommending any equipment.
02
Transparent Quote
You receive a written quote with equipment options, efficiency ratings, rebate eligibility, and financing options — all clearly itemized before you commit.
03
Expert Installation
Our certified technicians install your new system to manufacturer specifications, including refrigerant line connections, electrical work, and duct modifications.
04
Testing & Handover
We run a full system commissioning test, verify refrigerant charge, program your thermostat, and walk you through operation and maintenance.
Act Before It Fails
Signs Your AC Needs Professional Attention
Recognizing early warning signs can prevent a minor issue from becoming a costly emergency. If you notice any of the following, contact our team for a professional assessment.
Urgent
Warm Air from Supply Vents
If your AC is running but blowing warm or room-temperature air, you likely have a refrigerant leak, compressor failure, or a frozen evaporator coil requiring immediate attention.
Moderate
Water Leaking Around the Unit
Some condensation is normal, but active water pooling around your indoor unit indicates a blocked condensate drain or a frozen coil that has thawed — both need prompt service.
Moderate
Electricity Bills Climbing Unexpectedly
A sudden increase in your electricity bill during cooling season without a change in usage patterns suggests your AC is losing efficiency and working harder than it should.
Urgent
Short Cycling — Frequent On/Off
An AC that turns on and off every few minutes without completing a full cooling cycle is short-cycling. This stresses the compressor and dramatically shortens equipment life.
Moderate
Weak Airflow from Registers
Reduced airflow can indicate a clogged filter, blocked ductwork, failing blower motor, or a frozen evaporator coil. Any of these will reduce cooling effectiveness significantly.
Monitor
System Over 12 Years Old
Air conditioners typically last 12–15 years. An aging system loses efficiency and reliability. A proactive replacement assessment before failure avoids emergency costs in peak summer heat.
Not sure if your system needs attention? Call us for a free phone consultation.
905-790-9080The Efficiency Gap
Old AC vs. New High-Efficiency System
Feature
Older AC (10–13 SEER)
Lennox 21+ SEER
Cooling Efficiency
10–13 SEER
21–28 SEER
Annual Electricity Cost (est.)
$900–$1,400
$450–$700
Noise Level
72–78 dB
As low as 59 dB
Humidity Control
Basic
Precise variable-speed
Smart Thermostat
Limited compatibility
Full iComfort® integration
Refrigerant Type
R-22 (phased out)
R-410A / R-454B (current)
Warranty
Expired
Up to 10 years parts & labour
Reduce Your Investment
Rebates & Incentives for New AC Systems
We help you identify and apply for every rebate and incentive you qualify for — maximizing your savings on new equipment.
Interest-free loan
Canada Greener Homes Loan
The Canada Greener Homes Grant has closed. The Canada Greener Homes Loan may be available for qualifying energy retrofits. Confirm current availability with us.
Up to $650
Enbridge Gas Rebates
Available to Enbridge customers replacing older, less efficient cooling equipment with qualifying high-SEER systems.
Up to $1,000
Ontario Home Efficiency Rebate Plus
Provincial incentive for qualifying cooling upgrades. Can be combined with federal programs for maximum total savings.
Program availability and amounts are subject to change. We confirm current eligibility during your free consultation and assist with all application paperwork.
Book a Free Rebate ConsultationHomeowner Guidance
Keeping Your AC in Peak Condition Year-Round
Spring
- Schedule AC tune-up before first hot day
- Replace air filter after winter
- Clear debris from around outdoor unit
- Test system before you need it urgently
Summer
- Check filter monthly during heavy use
- Keep outdoor unit clear of vegetation
- Set thermostat to 24–26°C for efficiency
- Use ceiling fans to reduce AC load
Fall
- Clean or replace filter at season end
- Cover outdoor unit loosely for winter
- Note any performance issues for spring service
- Consider upgrading if system is 12+ years old
Winter
- Do not run AC below 15°C outdoor temperature
- Keep outdoor unit clear of ice and snow buildup
- Research rebates for spring replacement planning
- Book spring tune-up early to secure preferred date
Why Homeowners Trust Us
The Global Comfort Air Difference
Factory-Certified Lennox Technicians
Our technicians complete ongoing Lennox factory training, ensuring your system is installed and serviced to the highest manufacturer standards with full warranty protection.
Proper Load Calculations — Every Time
We never guess at system sizing. Every installation begins with a Manual J load calculation to ensure your new AC is sized precisely for your home — not oversized, not undersized.
Fully Licensed, Bonded & Insured
All work is performed by licensed HVAC technicians under comprehensive commercial general liability insurance. Your home and investment are fully protected on every job.
Same-Day Emergency Service
When your AC fails during a heat wave, we respond fast. Our dispatch team is available 24 hours a day, 7 days a week, with same-day service available across the GTA.
Ready to Get Started?
Contact us today for a free estimate. Our licensed technicians are available 24/7 for emergency service across the GTA.
Serving Peel · Toronto · York · Halton · Durham · Barrie
Frequently Asked Questions
What SEER rating should I choose?
In Ontario, we recommend a minimum 16 SEER system. Higher SEER ratings (21+) offer greater energy savings — Lennox's top models reach 28 SEER, cutting cooling costs significantly versus older units.
How long does AC installation take?
A standard central AC installation typically takes 4–6 hours. Our team handles everything from equipment delivery to final testing and thermostat programming.
My AC is blowing warm air — what should I do?
Check your thermostat settings and air filter first. If the problem persists, call us — it could be a refrigerant leak, compressor issue, or electrical fault that needs professional diagnosis.
Can I qualify for government rebates on a new AC?
Many high-efficiency Lennox AC systems may qualify for Ontario utility rebates and OHERplus. Note: the Canada Greener Homes Grant has closed. We help you identify every currently active rebate you're eligible for.
How often should I replace my AC filter?
Standard 1-inch filters should be replaced every 1–3 months. High-efficiency media filters can last 6–12 months. A clean filter is the single most important thing you can do for your AC.
Why Choose Global Comfort Air?
Serving the Greater Toronto Area since 1999, we bring factory-trained expertise, premium Lennox equipment, and a commitment to your complete satisfaction on every job.
- Lennox Authorized Dealer — up to 28 SEER systems available
- All makes and models serviced
- 24/7 emergency response across the GTA
- Proper Manual J load calculation for every installation
- ENERGY STAR® certified products
- Government rebate assistance
- Upfront pricing — no surprises
- Fully licensed and insured
Lennox Authorized Dealer
Factory-trained technicians · Genuine parts · Full warranty
Air Conditioning Service Area — Greater Toronto Area & Beyond
TorontoMississaugaBramptonVaughanRichmond HillMarkhamOakvilleBurlingtonAjaxPickeringNewmarketAuroraBarrieEtobicokeScarboroughNorth York