Special offer
Fall Furnace Upgrade — Up to $1,800 Back
Upgrade to a qualifying Lennox system and receive a Lennox Prepaid Mastercard® rebate. Or choose $1,400 back plus 0 payments for 6 months.
View offerMon–Sat 9am–5pm24/7 Emergency
24/7 emergency HVAC service
Heating or cooling emergency? Call now for immediate help.
GLOBAL
COMFORT AIRCertified HVAC Specialists
Dave Lennox
Award Recipient
COMFORT AIRCertified HVAC Specialists
Lennox Authorized Dealer
Dave LennoxAward Recipient
Proudly Serving Toronto – GTA Since 1999
Commercial&IndustrialHVACExperts
Expert installation, service, and maintenance for the systems that keep your business moving.
Rooftop Units · Commercial Service · Industrial Solutions
HRAI Certified Member
25+ Years of Excellence
Fully Licensed & Insured
24/7 Emergency Response
Technicians Available Now
Licensed & InsuredTechnicians
21+ GTA CitiesService Area
24 / 7 / 365Emergency Line
Call Us Now — Free Estimate
905-790-9080
Also: 416-419-2112
Popular Services
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HVAC Guidance Articles
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Current Promotions & Rebates
Exclusive Offers — Limited Time Only
Don't miss out — these deals are available for a limited time. Book today to lock in your savings.
LIMITED TIME🔥
$1,800 Off New Furnace
Lennox high-efficiency furnace installation. Includes free thermostat upgrade.
Save $1,800
Claim Offer SPRING SPECIAL❄️
Free AC Tune-Up
Book any new AC installation and receive a complimentary seasonal tune-up.
$149 Value
Book Now GOVT REBATE💰
Heat Pump Rebates Available
Ontario and utility rebate programs on qualifying cold-climate heat pump installations. Ask us about current eligibility.
Ask About Rebates
Check Eligibility BUNDLE & SAVE⚡
Furnace + AC Combo
Install both and save up to $800. Financing at 0% for 12 months.
Save $800
Get Bundle 
Limited TimeEnds Dec 4, 2026
Lennox Fall Promotion — Up to $1,800 Back
Purchase a qualifying Lennox Ultimate Comfort System™ and receive up to $1,800 as a Lennox Prepaid Mastercard®. Or choose no payments for 6 months on approved credit — or combine up to $1,400 rebate with 6-month financing.
View full promotion detailsQualifying indoor unit, outdoor unit and thermostat required. Residential single-family only. Purchase by Dec 4, install by Dec 11, 2026. Claim by Jan 10, 2027 at lennoxconsumerrebates.com. Cannot be combined with other Lennox promotions. See lennox.com for full terms.
Ontario: Open NowFederal: Coming 2027
Ontario & Federal Heat Pump Rebates
$12,000
Ground-source heat pump
$7,500
Cold-climate air-source
$2,000
Enbridge gas homes
Ontario Home Renovation Savings is accepting applications now. A new federal rebate of $2,000–$10,000 is expected to open in early 2027 — qualifying installations from November 1, 2026 may be eligible retroactively.
View full rebates guideProgram maximums are not guaranteed payments. Ontario Home Renovation Savings requires a listed participating contractor and pre-installation approval. Federal portal not yet open; applications expected early 2027. Verify current terms at homerenovationsavings.ca.
Limited-time savings
Current Promotions & Rebates
Explore current offers from Global Comfort Air. Contact our team to confirm eligibility and find the right comfort solution for your home.
Special offer
Ontario Home Renovation Savings
Qualifying cold-climate heat pumps may be eligible for provincial rebates. Ask our team about current incentives.
Learn more
Special offer
Lennox Water Heater Launch
The new Lennox water heater lineup is now available. Reliable, efficient hot water built for Canadian winters.
Explore specialsWhat We Do
Complete HVAC Solutions for Every Need
From residential furnace repairs to large-scale industrial HVAC installations — we handle it all with certified expertise.
Heating
Expert furnace installation, repair & maintenance. Keep your home warm all winter long.
Learn MoreAir Conditioning
Central AC installation, repair & seasonal tune-ups for maximum cooling efficiency.
Learn MoreGas Pipe Line
Licensed gas line installation, repair & inspection for residential and commercial properties.
Learn MoreAir Balancing
Professional air balancing to ensure even temperature distribution throughout your home.
Learn MoreSimple Process
How It Works — 4 Easy Steps
Getting your HVAC serviced or replaced is simple with Global Comfort Air. Here's what to expect.
01
Call or Book Online
Contact us by phone or use our online booking form. Available 24/7 for emergencies.
02
Free Assessment
Our certified technician visits your property and provides a detailed, no-obligation quote.
03
Expert Installation
Factory-trained technicians complete the work on time, on budget, with zero mess left behind.
04
Enjoy & Save
Relax in comfort knowing your system is covered by our warranty and ongoing support.
Get Your Free Quote — No Obligation
Choose your property type, then pick a service — book instantly online
Available 24/7
905-790-90801
Select Your Property TypeTell us what kind of property needs service
2
Select Your ServicePick the service you need
Heating4 services
Air Conditioning3 services
Water3 services
Specialty & Smart4 services
💰
Government Rebates May Apply
Heat pumps & high-efficiency systems may qualify
No obligation·Licensed & insured·Lennox Authorized Dealer
Popular:
25+
Years of Excellence
Why Choose Us
Why GTA Homeowners Trust
Global Comfort Air
Since 1999, we've been the go-to HVAC specialists across the Greater Toronto Area. Our certified technicians deliver reliable, efficient, and affordable heating and cooling solutions for homes, businesses, and industrial facilities.
25+ Years of Proven Experience
Trusted by thousands of GTA families and businesses since 1999.
Authorized Lennox Dealer
Access to the latest Lennox products with factory-trained installation.
Fully Licensed & Insured
HRAI member, TSSA certified, ESA licensed — fully compliant with all Ontario regulations.
24/7 Emergency Service
HVAC emergencies don't wait for business hours — neither do we.
HVAC Knowledge Centre
Expert Tips & Homeowner Guides
Stay informed with practical HVAC advice from our certified technicians.
Heating
4 min read
7 Signs Your Furnace Needs Replacing This Winter
Don't wait for a breakdown. Learn the warning signs that indicate your furnace is nearing the end of its life — and what to do about it.
Read More
Heat Pumps
5 min read
Heat Pumps in Canada: Are They Worth It in Cold Climates?
Modern cold-climate heat pumps work efficiently down to -30°C. Find out how much you could save on energy bills with a Lennox heat pump.
Read More
Air Conditioning
3 min read
Spring AC Tune-Up Checklist: 10 Things to Do Before Summer
A simple spring maintenance routine can extend your AC's lifespan by years and prevent costly emergency repairs during peak summer heat.
Read More
Indoor air quality learning
Healthier air starts with a smarter home.
Watch this quick guide to learn how cleaner indoor air can support everyday comfort, wellness, and a healthier home environment.
Explore air quality solutionsLennox system guidance
A better system starts with a better plan.
Global Comfort Air pairs authorized Lennox equipment with a clear, home-by-home consultation. We assess comfort concerns, system condition, airflow and efficiency goals before recommending an upgrade.
System matching
Equipment recommendations are matched to your home, comfort priorities and practical operating needs.
Whole-home perspective
Heating, cooling, filtration, humidity and controls are considered together—not as disconnected upgrades.
Professional handover
After installation, we verify operation and explain the controls, maintenance needs and next steps.
Official Lennox Partnership — 10+ Years
Proud Authorized
Lennox Dealer
As a Lennox Authorized Dealer, we provide access to North America's most trusted HVAC brand — backed by factory-trained technicians, exclusive dealer warranties, and the latest high-efficiency technology.
View All Lennox ProductsSince 2003 · 10+ Years
ENERGYSTAR
Cold ClimateDealerAward
Up to 98.7% AFUE
Lennox Furnaces
High-efficiency gas furnaces up to 98.7% AFUE. Quiet, reliable, built for Canadian winters.
Explore ProductsUp to 28 SEER
Lennox Air Conditioners
Industry-leading central ACs with SEER ratings up to 28. Maximum comfort, minimum energy.
Explore ProductsWhole-Home Coverage
Lennox Humidifiers
Whole-home humidification systems that maintain perfect indoor humidity levels year-round.
Explore Products
Where We Serve
Proudly Serving All of Greater Toronto Area
From Barrie to Oshawa, from Oakville to Newmarket — our certified technicians are ready to serve you.
Check If We Serve Your Area
Peel Region
BramptonMississaugaCaledon
Toronto
TorontoNorth YorkEast YorkEtobicokeScarborough
York Region
VaughanRichmond HillMarkhamAuroraNewmarketKing City
Halton Region
OakvilleBurlingtonMilton
Durham Region
AjaxPickeringWhitbyOshawa
Also Serving
Barrie
Not sure if we serve your area? Give us a call!
905-790-9080Our Work
Experience Global Comfort Air Through Real Work
Explore photographs, service explanations and project examples from Global Comfort Air. When independently verifiable customer reviews are available, follow links to the original review platform to see the current ratings and feedback.
"
"Global Comfort Air replaced our old furnace with a new Lennox unit. The technicians were professional, on time, and cleaned up after themselves. Excellent service — highly recommend!"
M
Michael T.
Brampton, ON
"
"Called them for an emergency AC breakdown in the middle of summer. They arrived within 2 hours and had it fixed quickly. Truly 24/7 service. Will use them again for sure."
S
Sarah K.
Mississauga, ON
"
"As an authorized Lennox dealer, they gave us the best price on a new heat pump system. Installation was flawless. Our energy bills dropped significantly. Very happy customers!"
D
David R.
Vaughan, ON
Peace of Mind
HVAC Protection Plans
Protect your investment with a maintenance plan. Avoid unexpected repair costs and keep your system running at peak efficiency.
Basic
$9.99/mo
- Annual furnace tune-up
- Annual AC inspection
- 10% off parts & labour
- Priority scheduling
- Filter replacement reminder
Most Popular
Comfort
$19.99/mo
- Everything in Basic
- Bi-annual tune-ups
- 15% off parts & labour
- Priority emergency service
- Free filter replacements (2/yr)
- Thermostat calibration
Premium
$34.99/mo
- Everything in Comfort
- Unlimited service calls
- 20% off all parts
- Free emergency visits 24/7
- Annual duct inspection
- Carbon monoxide testing
- Priority winter response
All plans include HST. Cancel anytime. No long-term contracts required.
Get Seasonal HVAC Tips & Exclusive Deals
Join 5,000+ GTA homeowners who receive our seasonal maintenance reminders, energy-saving tips, and exclusive promotions.
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Available Right Now — 24 Hours · 7 Days
HVAC Emergency?
We're Here 24/7
Don't suffer through a heating or cooling breakdown. Our emergency team is available around the clock — call any time, day or night.
Emergency Crews On Call
Licensed Technicians
Upfront Pricing
All GTA Areas
Our Credentials
Certifications & Affiliations
Fully licensed, insured, and certified to the highest industry standards.
Authorized DealerENERGY STAR Most Efficient
ENERGY STAR Cold Climate
Dealer Award — Design Excellence
Technical Standards & Safety Authority · Ontario
Heating, Refrigeration & Air Conditioning Institute of Canada
Residential
Complete HVAC solutions for homes of all sizes. Furnace, AC, humidifier, and more.
Learn MoreCommercial
Reliable HVAC systems for offices, retail, restaurants, and commercial buildings.
Learn MoreIndustrial
Heavy-duty HVAC solutions for warehouses, factories, and large-scale facilities.
Learn MoreReady to Experience the Global Comfort Air Difference?
Schedule your service today or call us for a free estimate. Our team is ready to help.