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High Efficiency Cooling & Heating Inc.

HVAC Companies in Markham, Ontario

Ranked #10 in Markham | Grade B-
4.80 (1,334 reviews)(905) 307-2988

High Efficiency Cooling & Heating Inc.

Local HVAC contractor providing installation, repair, and maintenance for heating and cooling systems. Customers frequently note clear communication, careful workmanship, and timely scheduling Serving homeowners across Markham, Ontario.

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Why Homeowners Choose This Business

Local team with strong customer feedback for thorough diagnostics and clear communication. Technicians are frequently praised for neat installations and taking time to answer questions. Scheduling is responsive, with many reports of prompt service Local experience that helps homeowners across Markham, Ontario compare a more region-aware provider.

Service Area

Headquartered on Alden Rd in Markham, Ontario and serving surrounding GTA neighborhoods.

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How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.

  • Has more review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

Renovation Services Furnace Installation Maintenance AC Installation Installations Heat Pump Installation Hvac Repair Hvac Maintenance Thermostat setup Air Conditioning Repair Heating Repair Indoor Air Quality Ductwork service HVAC replacement Seasonal Tune-Up

Furnace and AC installation and replacement; heat pump installation; troubleshooting and repair; maintenance and tune-ups; thermostat setup and support; indoor air quality solutions.

Reviews

Customer Reviews

HollyGoLiteLeee

We purchased a Carrier Furnace and A/C last month and Farid and Ali were the installers. They did an outstanding job, cleaned up after themselves, and explained and answered every question we had for them. I highly recommend Farid & Ali to…
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We purchased a Carrier Furnace and A/C last month and Farid and Ali were the installers. They did an outstanding job, cleaned up after themselves, and explained and answered every question we had for them. I highly recommend Farid & Ali to install! They’re friendly, and have lots of knowledge on what they’re doing. Holly and Sam

Jose Gutierrez

Had a great experience with Hardy this afternoon. Furnace was not working all day yesterday but luckily it started to work after midnight. Called High Efficiency Cooling & Heating and received a call back within minutes and luckily, they…
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Had a great experience with Hardy this afternoon. Furnace was not working all day yesterday but luckily it started to work after midnight. Called High Efficiency Cooling & Heating and received a call back within minutes and luckily, they were able to book me in for the same day. Hardy checked every component of the system and determined what could be causing the overheating. Was kind enough to provided information and recommendations. Ensured the furnace is in good condition before leaving. Checked to make sure all safety aspects were at the levels they should be. Thanks Hardy for making sure we will have heat for the upcoming cold snap!

Edward Kim

I hired this contractor based on many positive comments listed on Google. My experience with their Sales dept. was well below my expectations (i.e took more than 1 month to submit post installation documents for the Rebate). Installation wa…
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I hired this contractor based on many positive comments listed on Google. My experience with their Sales dept. was well below my expectations (i.e took more than 1 month to submit post installation documents for the Rebate). Installation was fast but, no training was offered on how to use and maintain the Heat Pump. Technical Support team came to my place and did an excellent job on thermostat use.

Bruce Ing

?????????? 5-Star Experience I had an excellent experience with High Efficiency and would highly recommend their services. The team is professional, efficient, and genuinely committed to doing things the right way. A special thank you to…
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?????????? 5-Star Experience I had an excellent experience with High Efficiency and would highly recommend their services. The team is professional, efficient, and genuinely committed to doing things the right way. A special thank you to Sam, the technician. His work was outstanding. He provided a clear, objective assessment of the installation with all the proper readings, and took the time to explain everything patiently and thoroughly. His professionalism and attention to detail really stood out. You can tell he takes pride in his work — and that level of dedication builds real trust and confidence. Replaced my motor blower and adjusted the tilt to my furnace and gave good advice on care. Furnace up and running just in time for winter. Very happy with the service from start to finish.

Fuwah Yip

Warmest thanks to Liam for his works to resolve the problem of my 10 years old A/C. He thoroughly carried out diagnosis after conversation to me about when the problem occurred and symptoms. Promptly identified where the loosen electric w…
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Warmest thanks to Liam for his works to resolve the problem of my 10 years old A/C. He thoroughly carried out diagnosis after conversation to me about when the problem occurred and symptoms. Promptly identified where the loosen electric wire should be connected to, hence resolved the problem without any new parts. Meanwhile, he also patiently answered all my questions. He is really a nice and honest guy, and highly competent technician with good knowledge to the product and repair technique. The team of High Efficiency Cooling & Heating kept me well informed about the process since I placed the repair service order. Price is fair, service is excellent, and company is reliable and trustfulness ????????

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Frequently Asked Questions

What HVAC systems do they work with?

They handle furnaces, central air conditioners, and heat pumps, along with related thermostats. Reviews also suggest they assist with maintenance and troubleshooting for common home HVAC issues.

How quickly can an appointment be scheduled?

Many reviewers report same-day or next-day service for urgent issues. Actual availability varies by season and workload, so calling ahead is recommended.

Do they provide maintenance and tune-ups?

Yes, customers mention seasonal maintenance and diagnostic visits. These appointments typically include system checks, guidance on use, and recommendations when needed.

Will the technician explain the work being done?

Multiple reviews note clear, patient explanations of findings and next steps. Technicians often walk homeowners through settings and provide practical tips.

Do they serve areas outside Markham?

Yes, they serve Markham, Ontario and nearby GTA communities. Contact the office to confirm availability for your specific location.