High Efficiency Cooling & Heating Inc.
HVAC contractor in Markham, ON.
In the words of High Efficiency Cooling & Heating Inc.
A multi-year Carrier President’s Award winner, High Efficiency Cooling & Heating Inc. has served Markham and the GTA for more than 20 years. As a Carrier Factory Authorized Dealer, we are recognized for excellence in customer satisfaction and technical expertise. We specialize in all the heat pump installations, furnace repair, and AC maintenance for homes, condos, and commercial properties. we help homeowners secure up to $7,500 in 2026 Ontario energy rebates. From Unionville to across the York Region, we provide 24/7 emergency service and expert solutions for rooftop units (RTU), Boiler. Trust the GTA’s elite award-winning HVAC team for precision workmanship and dependable, long-term comfort in every season.
- Trade
- HVAC contractor
- Business address
- 570 Alden Rd, Markham, ON L3R 8N5, Canada
- Telephone
- (905) 307-2988
- Website
- highefficiencyinc.com
- Hours
-
- MondayOpen 24 Hours
- TuesdayOpen 24 Hours
- WednesdayOpen 24 Hours
- ThursdayOpen 24 Hours
- FridayOpen 24 Hours
- SaturdayOpen 24 Hours
- SundayClosed
From the business's Google listing, checked Oct 2026
- Register
- ON register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the provincial licensing body.
Google Reviews
-
Their technician (Harry) was great. They scheduled me in within days while other HVAC companies told me to wait for weeks. Harry was helpful and explained everything. Great experience!
Toby G.
-
Quentin was very knowledgeable and helpful.
VD
-
Excellent service
Russ
-
My A/C system did not work and the diagnosis indicated that the thermometer broke. However, during the installation of the new thermometer, the technician checked out that the original cause was the wiring and so additional part was required. With the new part, the technician completed the re-installation of the new thermometer and he carefully checked to make sure that both the A/C and furnace are working before the completion of the service. The technician was very patient and skillful.
Bill I.
-
High Efficiency Cooling & Heating cimpany was very prompt in responding to my request for inspection and service of our HVAC system and gas water heater. The technician Harry was very helpful and efficient in performing the work. He explained to me in details what he believed was causing the problem with our water heater and recommended the proper setting of the controller to optimize the heater.
koko K.
-
The service is great. Quentin was of a huge help for us.
Mahiman S.
-
It was great service from Quentin, respectful and professional. He provided good tips and advise, great customer service.
Kelly O.
-
I had my A/C maintenance by Quintine today. He is very professional and helpful. Looking forward for his service again.
bob C.
-
Quentin good service! Recommend
Tracy K.
-
Amazing service great people to deal with I highly recommend them
Habib Z.
About High Efficiency Cooling & Heating Inc.
Heat pumps, air conditioning and furnace work
High Efficiency Cooling & Heating Inc. names heat-pump installation, furnace repair and air-conditioning maintenance among its work. The company says it has served Markham and the Greater Toronto Area since 2005, handling homes, condos and commercial properties.
The company also offers maintenance, indoor-air-quality work, rooftop units and boilers. The company describes 24/7 emergency support, same-day service and a 100% satisfaction guarantee.
Carrier equipment and Markham service
High Efficiency Cooling & Heating Inc. works with Carrier equipment and describes itself as a Carrier dealer. It also offers tune-ups and thermostat installation, alongside its heating and cooling work.
In Markham, the 1981-2010 Environment Canada normals show an average temperature of 7.9°C, with an average high of 12.6°C and average low of 3.2°C.
The company is a Carrier Factory Authorized Dealer and a multi-year Carrier President’s Award winner.
Rating, reviews and hours
Reviewers most often mention prompt scheduling and response times, technicians who explain diagnoses clearly, and careful checks after repairs; one review also describes an initially poor experience that was later resolved through responsive service.
The business is open 24 hours Monday through Saturday and closed Sunday.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from Statistics Canada and Environment Canada.
More HVAC contractors in Markham
About Markham
| Population | 338,503 (2021) |
|---|---|
| Average yearly snowfall | 150.6 centimetres |
Sources: Statistics Canada, 2021 Census. Environment and Climate Change Canada, Canadian Climate Normals 1981-2010.