High Efficiency Cooling & Heating Inc.

Name: High Efficiency Cooling & Heating Inc.
Address: 570 Alden Rd. Unit 3, Markham, ON, L3R8N5, Canada
Telephone: 9053072988
Rating: 5.0

HVAC in Markham ON
Star Score
Average 5.0 / 5
Reviews & Ratings 1565
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REVIEW High Efficiency Cooling & Heating Inc.

High Efficiency Cooling & Heating Inc., based in Markham, is a trusted provider of HVAC services, renowned for their professional and knowledgeable technicians like Jason and Harry Yan. Praised for their honest advice and efficient maintenance work, they offer cost-effective solutions and valuable tips for system upkeep. Whether it's a routine tune-up or a full system installation, their team, including experts like Charton and Peter, ensures customer satisfaction with thorough follow-ups and clear explanations. Their commitment to quality service and competitive pricing makes them a go-to for all heating and cooling needs.

Sam provided good service. However maintenance fee is too high.

- npu sh - Oct 23, 2025

Awesome and friendly technicians, I’ve booked appointments with them twice and both times, they went above and beyond! Highly recommend

- Style Swipe - Oct 17, 2025

Thank you High Efficiency (HE) technician coming in today to perform all furnace-related checkup and maintenance. I am confident with HE and am at ease all the way because I know in advance what the tasks will be (a list of the jobs has been forwarded to me days ahead) and the technician kept me informed of what he did as his job rolled out and completed.

- Yik Wilson - Oct 16, 2025

Sam from High efficiency cooling and heating has done a great job for my Furnace maintenance.

- Lili Jia - Oct 16, 2025

Liam was thorough with our annual furnace maintenance check and answered all of our questions. He laid out our options and made really helpful suggestions about how we could proceed with our aging furnace and also what to do with our A/C for an upcoming reno. We really appreciated his input. Weve used High Efficiency twice now and have been really pleased with the service.

- Rebecca L - Oct 15, 2025

Service guy is he did a great job I recomend him and the company to anyone the technicians explain everything to me great job keep up the good work

- Clyde Hosein - Oct 10, 2025

- Jai Paek - Oct 09, 2025

Always on time and very good service. Highly recommend High Efficiency for your heating and air conditioning needs.

- Sylvia Shatzky - Oct 09, 2025

Tech is really good for checking my furnace. Also give me the suggestions on the water tank as well.

- Peter Shen - Oct 08, 2025

Rana was very knowledgeable and helpful. I learned a lot about my Heat Pump today. He was very patient and methodical and checked all systems before leaving. I would recommend his service to anyone. Today I had Sam service my Heat Pump. He was very knowledgeable and personable. I would definitely recommend both Sam and High Efficiency for their prompt and professional service.

- Russ Machula - Oct 08, 2025

Had a great experience with my furnance tuneup. The tech went over all the details and took his time explaining his work.

- O A - Oct 08, 2025

Technician is very knowledgeable.

- Dennis Mariano - Oct 08, 2025

Ive worked regularly with High Efficiency for four years now and they are a highly professional and knowledgeable company. Specifically, Rana has done maintenance work for a couple of years and has been really wonderful to work with. Hes very efficient and knowledgeable. Thank you, Rana and thanks High Efficiency. I would definitely recommend.

- J Lee - Oct 08, 2025

I am very happy to have had my Smart Thermostat installed today and was pleased with the installers ( Liam ) knowledge of the product and professionalism … Thx 😊

- Gary C - Oct 06, 2025

- Davis Lin - Oct 02, 2025

Easy scheduling, quick call-back, excellent service from the technician - great experience!

- Sean McDonald - Oct 02, 2025

Very happy with the service. Sam, the technician, was very professional, very efficient, and answered all our questions.

- Mike Viola - Oct 02, 2025

- Carlos Melgarejo - Oct 02, 2025

- Bavan k - Oct 01, 2025

Fast service. Thank you Girin and hoping that the work be done as soon as possible.

- JON BARROS - Sep 30, 2025

The technician was quick and friendly. Thanks again :)

- Victoria Smith - Sep 29, 2025

- T C - Sep 26, 2025

- JianYing Sun - Sep 25, 2025

The service I received was exceptional. Lovely, honest and informative visit for maintenance on our heat pump. Thank you!

- Graham - Sep 25, 2025

High Efficiency Cooling & Heating Inc. installed a new Generalaire humidifier which includes a water saver. The technician patiently answered all of our questions. Hopefully, our water bill goes down and no more dry nose during the winter.

- Donna Ballmann - Sep 25, 2025

- FireFire - Sep 25, 2025

Harry was very professional and provided practical advice. He did a thorough diagnosis of our HVAC and AC to identify potential causes of an air quality issue, and we’re very happy with the service. Highly recommend this company for any heating & cooling needs!

- Sharon - Sep 22, 2025

Jason showed up on time, was courteous, respectful and amazing. He diagnosed the leak as a poor drainage connection, and didnt charge us. Perhaps it was a loose connection from previous work....not sure, but am happy there was no charge.

- Kim Latimer - Sep 18, 2025

Liam was very professional and thorough. Did a great job on my furnace tuneup and I hope I get him again next year

- Marlene - Sep 17, 2025

Good customer service. Technician is very helpful and provided good advices.

- Catherine Li - Sep 17, 2025

The technician is very patient, highly professional, and truly trustworthy.

- Kei Chun Ip - Sep 16, 2025

Girin the technician did a great job servicing my furnace and Central AC . Would highly recommend !

- Sanjeev Chowdhary - Sep 16, 2025

My technician Pirabaharan arrived on time, polite and courteous, professional and knowledgeable. Answers all my questions and make recommendations that meets and exceed my expectations. Highly satisfied with his service and works, would recommend him and this company to anyone. Jimmy

- Jimmy Pang - Sep 12, 2025

- C Mak - Sep 12, 2025

Giran from High efficiency cooling inc, explained the problem well and the resolution needed and it was quick though.

- prasath psm - Sep 02, 2025

Im very happy with the service I received on two occasions. Everything from the scheduling through to performing the service was excellent. The initial technician who came to diagnose and fix the issue was very knowledgeable and efficient. Then the two gentlemen who came to do a full cleaning of my unit were very thorough and overly polite. I couldnt have asked for better. You have a great team! Please pass along my thanks.

- Justin Jones-Ward - Sep 02, 2025

Service was on time and courteous.

- Randy Cheung - Aug 29, 2025

Been with this company since last year and couldn't be happier. They know what they're doing, charge fair competitive prices.

It's so much better to go with them than general contractors or other means to try to save a few hundred dollars.

You get what you pay for. I replaced my AC with them a year ago, serviced it at no cost since I have the diagnostics for life package.

They also fixed several mistakes from the previous home owner and a contractor I hired to install the smart thermostat. The furnace and AC would randomly fail at times and I had no idea why. Now I know and everything is working perfectly.

Genuine service. Genuine company.

- Jonathan Zhao - Aug 25, 2025

- David Chu - Aug 25, 2025

- Sachin Patel - Aug 22, 2025

On time, quick and friendly service.

- Eddy Chan - Aug 22, 2025

Sam is very polite and did a good job of getting our boiler running again. Marco at the office was also good to deal with.

- Ferris - Aug 22, 2025

- Hoi Kwan Lee - Aug 21, 2025

Fast and great service!

- Kevin Higa - Aug 19, 2025

Excellent service. Excellent communication. The process was smooth. Both AC units were installed and tested and explained.
They both work great without issue.
The men who came were kind and respectful and professional.
Everything was left clean.
I’m grateful for the experience they provided.
Would highly recommend.

- Kris Brown - Aug 18, 2025

- Season Chan - Aug 17, 2025

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 👍🏻👍🏻

- Fuwah Yip - Aug 15, 2025

Knowledgeable and hardworking .Found the solution pretty quickly

- Jamaal S - Aug 15, 2025

This company knows all about PTAC units. Omg they've helped out many of us condo owners manage and fix these antiquated heating systems.

I am very grateful. If you have an old heating system in the Dundas st area and its not functioning well, I would def hire this company.

- melissa (Lisa Lisa) - Aug 14, 2025

My wife and I have been in our current home for 38 years and have experienced three different HVAC companies. We have now found that our 3rd company namely High Efficiency Cooling % Heating Inc. to be our preferred company. Charton from sales returned our many phone calls with clear answers before our purchase of a dual furnace-heat pump system. Liu and his assistant did an excellent installation. Richard the technician has taken a systematic elimination approach to find the cause of a heat pump problem. Most importantly the technician Richard took the time to listen to our heat pump drainage concerns and came up with a perfect solution that demonstrated the great flexibility of our smart thermostat and great flexibility of our heat pump that when needed it can function solely as an ac thereby eliminating our drainage concerns. Thank you to the whole team and especially to the technician Richard for clearly explaining the multiple advantages of a dual furnace-heat pump system and smart thermostat and suggesting what we thought was a perfect mechanical solution to our heat pump drainage concerns!

On August 14, 2025, technician Girin from High Efficiency and Cooling Inc. came to replace the collector's box in our Carrier furnace. The need for a replacement was first diagnosed by technician Rana, Marco ordered the new part and Girin did an excellent job in replacing the old collector's box. Girin was very professional, performed excellent work, explained everything very clearly, doubled-checked to make sure everything was in excellent order, and answered all our questions about the Eco smart thermostat. Many thanks to Girin and the whole High Efficiency team for their excellent teamwork! We thoroughly are appreciative of High Efficiency's Annual Service membership program and their Residential Lifetime Free Diagnosis Membership Program. These 'worry-free' programs provide us with safety, security and efficient service!

- GERRY - Aug 14, 2025

Frequently Asked Questions

FAQ's from customer experiences

What types of HVAC systems does High Efficiency Cooling & Heating Inc. service and install?

They service and install various HVAC systems including air conditioners, furnaces, heat pumps, humidifiers, smart thermostats, and PTAC units.

How does the company handle scheduling and technician arrival times?

The company is noted for prompt scheduling and technicians arriving on time, often providing advance notifications or reminders before appointments.

What can customers expect during a service or repair visit?

Technicians perform thorough diagnostics, clearly explain issues and solutions, work efficiently and professionally, and maintain respectful communication while keeping the work area clean.

High Efficiency Cooling & Heating Inc. | 570 Alden Rd. Unit 3, Markham ON L3R8N5, Canada