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.
Google Review
5 stars
Excellent service. Responsible and professional.
- Michael ni - Nov 08, 2024
HomeStars Review
5 stars
Met Jamie for an evaluation. He made some good recommendations which I went with(lower blower box and larger coil). Booking was easy, installers were fantastic and a very competitive price to replace my 30 yr old furnace and AC.

Not only the units were replaced, they replaced all the copper lines and intake/exhaust..literally a new HVAC system

The installers did a good job and made sure to use drop cloths, all equipment installed as per contract.

Office support (Natalie) is amazing as well. Followed through with replacing an AC bracket that I requested and provided me with a Lennox warranty certificate 2 weeks later. Just as promised.

Overall, a very good job by the whole team and I would definitely use them again!
- Domenic Martino - Oct 31, 2024
Google Review
5 stars
I recently had Harry from High Efficiency Cooling & Heating Inc. repair a leakage in my furnace, and I couldn't be more satisfied with the service. Harry was skilled, efficient, and clearly knowledgeable about the job. What really stood out was his positive attitude and his willingness to explain the problem and the steps he took to fix it. It's great to see someone who takes pride in their work and truly cares about doing a good job. I highly recommend Harry and High Efficiency Cooling & Heating Inc. to anyone needing furnace repairs!
- reiri yo - Oct 25, 2024
Google Review
5 stars
- Ray Woon - Oct 24, 2024
HomeStars Review
5 stars
Were able to clean burners and replace gas valve and clear red tag to make boiler pass safety inspection Other companies had said couldnt be done and were insisting on replacing boiler. Boiler is working fine so happy that could pass safety inspection
- Nicholas Koussoulis - Oct 18, 2024
Google Review
5 stars
I purchased my furnace and AC from High Efficiency and order annual maintainenace from them since then. Everything works fine and the technician has just come in for a service yesterday. I have to say the young man is really professional. He cleaned and checked every details. Explained to me clearly what he has done for the visit.
I am impressed with the service.
- Niiko B. - Oct 10, 2024
Google Review
5 stars
Excellent Service

Rana was great! I received a text that a service tech would be arriving today per scheduled furnace maintenance a couple of weeks ago. He arrived between the stated time and was very respectful of one's property. He was prompt and diligent at ensuring all parts of the furnace that needed to be maintained & adjusted. He also indicated that that igniter is working but may be needed to be replaced. However, he assured me that it is fine for this winter and maybe next winter, too. He was great going over what I needed to know and if I needed to monitor anything in particular. He left, job done, very clean but then came back realizing he had not replaced the humidifier filter that I had & brought out. I was fine to replace it but very pleased he came back and we both did it.

Great job, Rana! And have been with High Efficiency for almost 15 years for both heating & air conditioning. Very satisfied and highly recommended.
- Simon Mah - Oct 10, 2024
HomeStars Review
5 stars
Annual service & contract renew. Always pleasant & thorough. Take their time & show you what they did. Respond promptly
- Carol Phillips - Oct 04, 2024
Google Review
5 stars
- Sanjeev Chowdhary - Oct 04, 2024
Google Review
5 stars
The technician who came to service our furnace was very efficient and knowledgeable about the work. He provided very useful ideas about how a home owner can understand the best operation of the equipment.
- John Sparkes - Sep 30, 2024
Google Review
4 stars
- Toronto Veterinary Rehabilitation Centre - Sep 18, 2024
HomeStars Review
5 stars
We have a service membership program with High Efficiency Cooling & Heating which includes the furnace maintenance. The technician also changed the humidifier filter and recommended a fix to the broken humidifier knob, explaining how it works. Great service!
- Donna Ballmann - Sep 18, 2024
Google Review
5 stars
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 - Sep 15, 2024
Google Review
5 stars
- lin ding - Sep 10, 2024
Google Review
5 stars
- Andrew Z - Sep 08, 2024
Google Review
5 stars
They responded promptly to my inquiry, had someone down same-day, took care of the issue on the same day as the assessment, and accepted payment on the spot. Great company to work with.
- David Peer - Sep 06, 2024
Google Review
5 stars
Great service and very knowledgeable.
- S Venancio - Aug 30, 2024
Google Review
5 stars
Had them to install the Ecobee smart thermostat in my condo unit. Friendly staff and technician, price is reasonable. Recommended.
- Xiao Xiao - Aug 28, 2024
Google Review
5 stars
Very thankful to technician Liam. He solved an HVAC concern that other technicians weren't able to fix, and stayed late to make sure the job was completed correctly. High attention to detail and great at diagnosing tricky problems.
Thank you High Efficiency - Liam is an excellent technician
- Tiffany F - Aug 28, 2024
Google Review
5 stars
Harry diagnosed our A/C issue and provided clear and concise details in regards to both solving the immediate issue and next steps that needed to be done to rectify the issue permanently. Communication and on-site timing was excellent. Thanks again.
- Jason Fung - Aug 23, 2024
HomeStars Review
5 stars
Jamie is very professional and well informed individual. He answered all my questions patiently and provided guidance in regard to the various options available to me so that I could make an informed decision about replacing my furnace, AC and water Heater units.
- Anna De Falco - Aug 22, 2024
Google Review
5 stars
- Michael ni - Aug 16, 2024
Google Review
5 stars
Very professional, informative and efficient. Thanks Harry for your service and patience.
- A. Ari - Aug 13, 2024
Google Review
5 stars
Excellent sales, administration, installation and maintenance service
Rana experience and excellent service
- smusadilal - Aug 02, 2024
Google Review
5 stars
- YU HE JESSIE JIANG - Aug 02, 2024
Google Review
5 stars
Randeep was very professional and explained the problem and solution. He made sure everything was upto my satisfaction before leaveing. Thanks Randeep Rana for an excellent job.
- Mudasser F. Wyne - Aug 01, 2024
Google Review
4 stars
Technician arrived on time and was very helpful and thorough in his work.
- Murtaza Mohamedtaki - Jul 30, 2024
Google Review
5 stars
High Efficiency was great to deal with, definitely use them again.
- Claudio Perruzza - Jul 30, 2024
Google Review
5 stars
Just wanted to let you know that I had a wonderful experience with High Efficiancy Cooling & Heating. The technician was knowledgeable, helpful and so courteous. He not only diagnosed the problem right away but also did some maintenance on my unit. He also suggested a few tips about programming and other practical instructions to implement which would help with the functioning of my AC. Will definitely use this company the next time I have cooling or heating issues.
- Lydia Attard - Jul 30, 2024
Google Review
5 stars
- Shirley Wang - Jul 30, 2024
Google Review
5 stars
The technician is very knowledgeable and figure out our furnace shut down issue quickly. The overall experience is pretty good and I definitely gonna choose them again
- Cynthia Fu - Jul 29, 2024
Google Review
5 stars
- lin ding - Jul 26, 2024
Google Review
4 stars
High Efficiency Cooling installed the energy efficient heat pump for me in late November last year. Last week, we were not getting cool air and discovered that the furnace fan stopped working. We had no choice and had to replace our furnace with a new one. Lo and behold, after installation, High Efficiency Cooling had to spend 4 hours to replace the "coil" unit above the furnace.
Rana, the technician very professional and stayed to ensure the unit in good working conditions and there is no blockage in the drain tube.
Thanks, Rana.
- Peter Lee - Jul 26, 2024
Google Review
5 stars
I recently had the pleasure of working with Richard, and I couldn't be more satisfied with his service. He arrived right on time and demonstrated a high level of professionalism throughout the entire process. Richard efficiently diagnosed and fixed the issue with my AC, ensuring it was up and running smoothly. His expertise and dedication to quality work were evident, and I highly recommend him to anyone in need of reliable and skilled AC repair services.
- G L - Jul 26, 2024
Google Review
5 stars
Courteous and knowledgeable, very professional. Sorted out my humidity issues
- d n - Jul 26, 2024
Google Review
5 stars
I am very satisfied with the HVAC service I received. The technician Harry Yan was very punctual, arriving on time, and worked quickly and efficiently. His professionalism was impressive. Not only did he solve the issue with my HVAC system, but he also patiently answered all my questions. Overall, it was a great experience, and I highly recommend their service!
- Hongliang Lu - Jul 25, 2024
Google Review
5 stars
This is regarding the maintenance that was performed by Harry. He did a great job doing the check of my equipment. He has excellent knowledge of the equipment he was servicing. Furthermore, he took the time to answer any questions I had regarding the heat pump and proper settings of the thermostat.
- Chris Filippou - Jul 24, 2024
HomeStars Review
5 stars
Harry was very professional in diagnosing the issue for my AC and very through in coming up with solutions.
- William Wang - Jul 23, 2024
Google Review
5 stars
I just got 2 heat pumps installed with High efficiency cooling and heating. They did an immaculate job of staying through the day and completing the installation. Their work was thorough and neat. The wires that run outside the house was covered neatly with a case. The wires inside were alone missed to be covered with a case for which I have already reached out. Hope they address this as well. Overall very good experience. Highly recommend them to others.
- Pavithra Viswanathan - Jul 19, 2024
HomeStars Review
5 stars
We called High Efficiency Cooling & Healting Inc. for a/c maintenance. Liam came and did maintenance on the a/c. We had drain pipe blockages, so Liam explained clearly the benefit of installing an automatic condensation drain pump. We had this installed and we also signed up for an a/c & furnace maintenance plan. Thanks Liam!
- Stuart & Cherie - Jul 17, 2024
Google Review
5 stars
Excellent service! Experienced technician.
- Mon Poke - Jul 12, 2024
Google Review
5 stars
Again we are happy with the work that was performed!
- saveusplease1 - Jul 11, 2024
Google Review
5 stars
The technician -Liam knows his job well and explained every steps he did. Very knowledgeable! Thank you.
- Roet C - Jul 10, 2024
Google Review
5 stars
Harry came and look at few issues I was having and was able to fix them quickly. He knew everything about my furnace and also provided very good advice.
- Gehan K - Jun 29, 2024
Google Review
5 stars
Excellent service, salesman and good prices.
- Maged farag - Jun 28, 2024
Google Review
5 stars
The technician was very knowledgable and pleasant to talk to. Very satisfied with his service.
- James Wong - Jun 28, 2024
Google Review
5 stars
The technician -Liam knows his job well and explained every steps he did. Very knowledgeable! Thank you.
- Roet C - Jun 28, 2024
Google Review
5 stars
Quick and on time. Very knowledgeable.
- Edward Ng - Jun 25, 2024
Google Review
5 stars
Air conditioner was not cooling satisfactory. The service technician Harry was polite, careful, explained options, not pushy. Did the work efficiently and took the time to confirm all is working as it should. I took on some risk by adding refrigerant to a system with a leak but believe it was the best option. Time will tell. In any case am very satisfied with the service.
- Len Lipp - Jun 25, 2024
Google Review
5 stars
We could not recommend this great company more. Ali came to help us with furnace that was turned off by a tech from another service provider who came that same morning, claiming that the furnace is dangerously out of order and we should buy new one. He came from a company from which we bought the Carrier furnace 10 years earlier and which was serviced every year with no issues. We thought it an inaccurate suggestion and sought second opinion. Carrier assured us that our factory warranty is a lifelong one, will expire in 2051(!) and gave us names of several associated companies in our area. We called High Efficiency Cooling & Heating and are we happy that we did that! Ali came promptly (the same afternoon), examined the furnace and found disconnected wire, tube and a faulty fuse! After repairing and replacing what had to be done, he then checked everything, found it running well and we had heat! We cannot praise Ali, the company and its staff more. They provided us with honest, prompt, efficient, knowledgeable and conscientious service. We shall always call them for any service. Thank you, High Efficiency Cooling & Heating Inc.
- Marie Attard - Jun 25, 2024
Google Review
5 stars
I was very impressed by their service and kindness.
Especially, Richard who came to my home for the service was very professional. And, his advice was very helpful!
- Jin Hoo Park - Jun 24, 2024
Google Review
5 stars
Excellent service!
- Jovial Si - Jun 22, 2024
Google Review
5 stars
- dong jiao - Jun 21, 2024
Google Review
5 stars
Liam precisely diagnosed the issue and fixed it on spot. A perfect job done in no time when I needed it the most. Thanks a lot!
- Simon Dai - Jun 20, 2024
Google Review
5 stars
Thank you High Efficiency Heating for the prompt service call. The service technician did a very thorough inspection and explained what are next steps were. I highly recommend this company.
- Bruce Rossiter - Jun 19, 2024
Google Review
5 stars
The technician is very patience and responsible.
- I Zhang - Jun 17, 2024
Google Review
5 stars
- Hercules Drakopoulos - Jun 14, 2024
Google Review
5 stars
- James Liao - Jun 13, 2024
Google Review
5 stars
my Sales rep Jamie and technician Harpreet are both very knowledgable in the AC product and system, Jamie was very helpful on helping me to determine what is suitable for my housewith the consideration of pricing and compatibility of the product. Harpreet performed a smooth installation of the unit. overall they are both very easy to work with and very helpful in cooling your home. highly recommend.
- Jun Hui - Jun 01, 2024
Google Review
5 stars
We have an annual service contract with High Efficiency. This year, they reached out to us early to ensure that we would be serviced in time for winter during Covid. The technician as always was on-time, friendly and helpful. We continue to be very satisfied with this company and we recommend them highly.

Update for 2022: Harry showed up on time, and did the annual maintenance on our AC. He allowed me to ask questions, and i learned some new things. Thanks!
- Martin Hubel - May 31, 2024
Google Review
5 stars
HEC&H responded quickly to my request for an appointment. Liam who serviced us was thorough and was happy to answer any questions I had on what he was doing to handle the repairs to our AC. Great service this time and every time I've called them in the past.
- Richard McGuff - May 30, 2024
HomeStars Review
4 stars
Service was quick and efficient, the technician arrived on time, was polite and answered all my questions,
- Private User - May 29, 2024
Google Review
5 stars
I had an existing A/C unit that did not function after the installation of my new furnace by another company. Since my A/C unit was installed 8 years ago by this company, I contacted them and they promptly came to address my issue. The technician (I believe he is called Harry?) fixed the problem and now my A/C is running OK again. Great job! Definitely recommend this company for their great heating/cooling services.
- John Chang - May 27, 2024
Google Review
5 stars
Rana is very knowledgeable and thorough on his work. Keep-up the good job!
- Alex Frialde - May 27, 2024
Google Review
5 stars
Very good service. Satisfied!
- James Zhu - May 27, 2024
Google Review
5 stars
High Efficiency Cooling & Heating is the best! I called today with a query about alerts I was receiving on my Ecobee. Harry was there within a few hours, checked things out, addressed the issue, alleviated my concern, & provided very clear & helpful explanations. Thank you Harry!!!
- Mary Lou - May 21, 2024
Google Review
5 stars
Chartan did an outstanding job of providing all the details for furnace and ac options, performance of each type that made our decision all that easier. He and his Team arrived on time for each meeting and installation time. The install team was very efficient and clean. I believe Chartan gave us the best price when comparing other estimates from other Vendors. I would highly recommend to others interested in updating their HVAC system. to go with High Efficiency Cooling & Heating Inc. We are very pleased with our decision to go your Team.
- Morris
- Morris Calautti - May 17, 2024
HomeStars Review
5 stars
Liam the technician came to do the AC maintenance service. He was super to talk to. He did the AC maintenance and cleared the condenser in a timely manner. He checked the condenser pressure and ensured the pressure was ok before he left.
- Sheila Wing - May 16, 2024
Google Review
5 stars
Professional customer service; we have had very positive experiences with the quality of work.
- Natalie Mathews - May 09, 2024
HomeStars Review
5 stars
Liam did a great job, very knowledgeable and professional. This is a part of the yearly service membership.
- Larry Morris - May 07, 2024
HomeStars Review
5 stars
Rana was fantastic! He remembered doing our furnace service and thermostat installation.

He was very thorough with his service and explanations of what he was doing.

Rana was efficient, on time, and appeared to be a very happy employee.
- Private User - May 07, 2024
Google Review
5 stars
- Kintul Patel - May 06, 2024
Google Review
5 stars
Rana
Was extremely trained and sincere professional. Solved the problem by using all basics and fixed the issue with air conditioner. I would recommend him anytime if some one needs problem solving with HVAC unit
- Milind Nene - May 05, 2024
Google Review
5 stars
The technician’ very nice and his skill so good
- Bin Long - May 04, 2024
Google Review
5 stars
Harry was very professional. He gave me a very detail explanation on what are the causes of my issues and how to prevent it in the future.
- Ho Clinton - May 03, 2024
Google Review
5 stars
I had my A/C maintenance by Rana today. He is very professional and helpful. Looking forward for his service again.
- bob chau - May 02, 2024
Google Review
5 stars
Used for two years now. Great service and fast response
- Samuel Chan - Apr 29, 2024
Google Review
5 stars
Harry is an excellent, professional, knowledgeable technician. Very patient, detail orientated. Strongly recommend.
- Helen Cao - Apr 25, 2024
Google Review
5 stars
I had my A/C unit maintenance done by Harry. He was very knowledgeable , efficient and took extra time to give me lots of advice. He was friendly and helpful. This is the third time I’ve used this company’s service and they never disappoint. Highly recommend.
- Chokey Tsering - Apr 24, 2024
Google Review
5 stars
- Lawrence Mante - Apr 23, 2024
Google Review
5 stars
People were nice, helpful and knowledgeable. The communication was good and prompt. Definitely recommended.
- Robert Li - Apr 18, 2024
Google Review
5 stars
- Xinyi Dong - Apr 15, 2024
Google Review
5 stars
Excellent job fixing my Heat/AC unit by Rana !
- winter summer - Apr 12, 2024
Google Review
5 stars
I have used this company's services for many years and have always been completely satisfied with the service provided. The servicemen have always been courteous and friendly beyond expectation. The gentleman who came yesterday was not only polite and knowledgeable he actually grabbed a rag and helped me clean water off my wood floor when I spilled a full glass of water on the floor. I had moved too quickly to get up when he asked me where to find the thermostat. It was in no way his doing but he still felt impelled to help me. Having a bad hip and difficulty with mobility this gesture was more than appreciated. I have always had great experiences with this company and am sure you will too because their service providers are carefully chosen for these skills on top of their abilities!
- Doris Bauer - Apr 02, 2024
Google Review
5 stars
- margaret xu - Apr 01, 2024
Google Review
5 stars
I wasn’t sure what was wrong with my furnace, as it was making a grinding noise every time it started up. Liam arrived on time and was able to diagnose the issue shortly after arrival. Not long after he was able to fix the issue. He was very professional and gave me some good tips on my furnace’s condition.

This is the second time I’ve used High Efficiency and will be using them again if I have any issues.
- Mark R. - Mar 30, 2024
Google Review
5 stars
Harry so professional!
- Sherry Ching - Mar 25, 2024
Google Review
5 stars
技术人员非常详细的向我们说明了热泵的使用方法和如何设置必要的参数,细致耐心。技术人员懂得很多,每个问题都能讲得非常清楚。
- ???Stan - Mar 21, 2024
Google Review
5 stars
- Monica lee - Mar 20, 2024
Google Review
4 stars
HEC&H installed a Heat Pump in place of my existing 20 yr old air condition connected through my furnance. They did a reasonable job were on time and cleaned up after. Harpreet was polite and explained the install and steps well. Communication from the office was missed on detail regarding the Heat pump model being different but was later clarified and Harry the service tech who did a follow-up visit on my request for some minor noise was also very polite and helpful explaining the issue. I like that they have customers available and connected via text and always responsive.
- fuad ahmed - Mar 16, 2024
Google Review
5 stars
Professional staff, appreciate.
- donald li - Mar 15, 2024
Google Review
5 stars
Richard did a great job servicing our furnace. He was very friendly, professional and knowledgeable answering all my questions related to the furnace and A/C. He was very honest and did not try to push me into buying anything despite the old age of the furnace which otherwise works well.
Great service from ‘High Efficiency Cooling & Heating Inc.’ company which I highly recommend!
- Ovidiu Irimia - Mar 12, 2024
Google Review
5 stars
Harry was patient and professional for the heat pump diagnose. He explained the reason for the recommendation of the parts to be replaced.
- Michelle Zhang - Mar 01, 2024
Google Review
5 stars
They were very informative and friendly
- WILLIAM MCCORMICK - Feb 25, 2024
Google Review
5 stars
Excellent customer experience..helpsam &friendly ... we very satisfied with this service ..we highly recommend...
- Luy Mak - Feb 24, 2024
Google Review
5 stars
good and professional service
- judy fan - Feb 24, 2024
Google Review
5 stars
- ??? - Feb 23, 2024
Google Review
5 stars
- F.n nikkhoo - Feb 17, 2024
HomeStars Review
5 stars
Technician was punctual, professional and courteous. He provided a comprehensive and thorough service on the furnace system. When he was done, he provided a detailed report and explanation of the maintenance service.
- Helen - Feb 13, 2024
Google Review
5 stars
Technicians came and replaced the gas valve under warranty immediately upon the discovery of a leak. Great service and response time!
- J Must - Feb 09, 2024

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