Oshawa's Trusted
HVAC Specialists
McLaughlin to Kedron — Oshawa's trusted HVAC specialists.
Furnace installation, AC repair, heat pumps, and 24/7 emergency service across all Oshawa communities. Lennox Authorized Dealer · TSSA Licensed · Fully Insured.
Serving Oshawa Since 1999
HVAC Service Built for Oshawa Homes
Oshawa is Durham Region's largest city — a diverse community with a wide range of housing from the established post-war neighbourhoods of McLaughlin and Vanier to the newer subdivisions of Kedron and Windfields. Global Comfort Air has been serving Oshawa homeowners for over 25 years.
Whether you need a new Lennox furnace for a McLaughlin home, a heat pump for a Kedron townhome, or emergency AC repair in Vanier, our TSSA-licensed technicians are ready to help — fast and professionally.
What We Do
Complete HVAC Services in Oshawa
Every service backed by Lennox factory warranties, TSSA-licensed technicians, and 25+ years of local expertise.
Furnace Installation & Repair
High-efficiency Lennox furnace installations, same-day repairs, and annual tune-ups for Oshawa homes — from established neighbourhoods to newer subdivisions across the city.
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Air Conditioning
Central AC installation, repair, and maintenance. Stay comfortable through Oshawa's warm summers with a properly sized, energy-efficient system.
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Heat Pumps
Year-round comfort with energy-efficient heat pump systems — eligible for Canada Greener Homes and Enbridge rebates for Oshawa homeowners.
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Humidifiers & Air Quality
Whole-home humidifiers and air purifiers to combat dry winters and improve indoor air quality in your Oshawa home.
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24/7 Emergency Service
24/7 emergency heating and cooling service across Oshawa. We respond fast — nights, weekends, and holidays.
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Preventive Maintenance
Annual HVAC maintenance plans to keep your system running efficiently and avoid costly breakdowns throughout the year.
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Save Up to $10,000+
Oshawa Homeowners:
Don't Leave Rebates on the Table
We handle all the paperwork — you collect the savings.
Claim Your RebatesWhy Oshawa Chooses Us
The Global Comfort Air Difference
Oshawa Community Expertise
We know Oshawa's diverse communities — from the established working-class neighbourhoods of McLaughlin and Vanier to the newer family subdivisions of Kedron, Windfields, and Taunton. We tailor every HVAC solution to your specific home.
Lennox Authorized Dealer
Access to the full Lennox product lineup with factory warranties and exclusive dealer pricing unavailable at big-box stores.
TSSA Licensed Technicians
Every technician is TSSA licensed and WSIB covered — fully qualified to work on gas appliances in Ontario.
24/7 Emergency Response
No heat in January? No AC in July? Our emergency line is answered around the clock, every day of the year across Oshawa.
Rebate Assistance
We handle the paperwork for Canada Greener Homes, Enbridge, and Ontario rebate programs — Oshawa homeowners often save $1,000–$5,000+.
5,000+ GTA Installations
Over 25 years and 5,000+ installations across the GTA — our track record speaks for itself.
Local Coverage
Oshawa Communities We Serve
Customer Reviews
What Oshawa Homeowners Say
“Global Comfort Air replaced our furnace with a high-efficiency Lennox system. The team was professional, on time, and the price was exactly as quoted. Excellent service.”
“Emergency AC repair on a hot summer day — they arrived within 3 hours and fixed the issue quickly. Fair pricing and very professional. Will definitely use again.”
“Installed a Lennox heat pump system. The team was knowledgeable about the Canada Greener Homes rebate and helped us save significantly. Highly recommend.”
Common Questions
HVAC Questions from Oshawa Homeowners
1How much does furnace installation cost in Oshawa?
Furnace installation in Oshawa typically ranges from $2,500 to $5,500 depending on the efficiency rating (80–99% AFUE), unit size, and installation complexity. After Enbridge Gas rebates of up to $1,000, net costs are often lower. Global Comfort Air provides free in-home estimates with no obligation.
2How quickly can you respond to a heating emergency in Oshawa?
We aim to respond to emergency heating and cooling calls in Oshawa within 2–4 hours. Our dispatch team is available 24/7 including weekends and holidays.
3What rebates are available for HVAC upgrades in Oshawa?
Oshawa homeowners may qualify for Canada Greener Homes grants (up to $5,600), Enbridge Gas rebates of up to $1,000 for high-efficiency furnaces, and Ontario Home Efficiency Rebate Plus incentives for heat pumps. Global Comfort Air handles all rebate paperwork on your behalf.
4What warranty do I get on a new HVAC system installed in Oshawa?
Lennox equipment installed by Global Comfort Air comes with a 10-year parts warranty and a 10-year heat exchanger warranty when registered within 60 days. We also provide a 1-year labour warranty on all installations. Extended warranty options are available.
5How long does HVAC installation take in Oshawa?
A standard furnace or AC replacement in Oshawa typically takes 4–6 hours. A full system replacement (furnace + AC) usually takes one full day. We work efficiently to minimize disruption and leave your home clean.
6Can you add central air conditioning to an Oshawa home that only has a furnace?
Yes — this is one of our most common requests in Oshawa's older neighbourhoods. We can add central AC to your existing forced-air system, or recommend a ductless mini-split if your home doesn't have ductwork.
Also Serving
All GTA & Southern Ontario Service Areas
Ready for Reliable HVAC Service in Oshawa?
Call us today for a free in-home estimate or book online. Same-day and emergency appointments available across Oshawa.