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 did an amazing job by fixing an issue with my A/C. He was very polite and professional!
- Alik Ovesyan - May 20, 2025
We needed a 2nd opinion re our 20-year old A/C unit and Harry was scheduled to evaluate the equipment. He did a great job of explaining the details and answering all the questions - great work!
- Steve Stefanidis - May 17, 2025
Sam, the service technician has done a great job on the AC checkup. Thanks.
- Herb Hon - May 16, 2025
Sahil provided great service! Walked me through all details and answered all questions. 5 stars deserved
- Wafik Hert - May 15, 2025
Sahil (Sam) was very thorough to clean the condenser of my heat pump during this year's maintenance. He checked and made sure the system was working as designed. He answered all my questions with patience and provided very good advice. He did the same with my brother's heat pump next door. Excellent work!
- Lenny Lai - May 15, 2025
Jason was great. On time, friendly, knowledgable. He answered all my questions clearly and provided tips and pointers
Will use him and High Efficiency again
Update Oct 2021 - since my original review I've used High Efficiency for all my HVAC needs. Jason just installed a humidifier for me and did a great job + took the time to explain the functions and features
Update Nov 2022 - Great as always. I had an issue with my furnace and Gilbert helped me every step of the way, from explaining my options to helping me order the part required
May 2025 - Sam was fantastic. Did more than previous techs and was very helpful. Happy customer for years!
- Charles Farah - May 13, 2025
Sam was very knowledgeable and spent the time to explain everything to us. We had a heat pump problem and they sent Sam the next day we called, he was able to quickly diagnose it and fix it. Highly recommend this company!
- Jill Chen - May 11, 2025
Awesome work Sam did, thanks.
- David Alegbe - May 08, 2025
The technician’ very nice and his skill so good
- Bin Long - May 08, 2025
Install Central Humidifier
All job was done fast and with good price!
- Vincent feng - May 08, 2025
Technician attend a scheduled maintenance services for our home cooling and heat pump system. Sahil was the technician, he called before arriving. He was punctual and completed the services to our satisfaction. He was cordial and answer all my questions.
- Eric Ho - May 06, 2025
To: High Efficiency cooling & Heating
Thanks for your kindly, friendly & patiently with professional excellent service.👍
- chuekhung wong - May 02, 2025
We scheduled an annual service of our heat pump and a technician came in promptly to do the work. He was very knowledgeable and professional and we are very pleased with his work.
- Hans Munger - May 02, 2025
Air cleaners and humidifiers: Repair; Air Exchange
Excellent work and reasonable price. Troubleshooted the issue and took his time to fix the problem with my air exchange unit.
- Darrin Cappe - Apr 26, 2025
I had to laugh when I got an invitation from High Efficiency to submit an opinion on Google. Along with the invitation I got a recommendation of what to write here. So it would not surprise me if you see another Google entry saying the same thing! However, I will say, having used them several times before, every word they have asked me to write is true. They are excellent people to deal with. So here it is:
The service technician arrived in the time window quoted and completed it within the time window too. He was polite, worked safely and cleanly, and explained what he had found and exactly the service he performed.
- Jon Maxim - Apr 23, 2025
Sahil was very helpful and knowledgeable. He fixed the heating issue for me.
- sanjana ahid - Apr 21, 2025
Harry provided great service and advice
- Daphne Lee - Apr 16, 2025
Sam came to help and he was a very helpful, friendly, and nice man. Highly recommend his services to everyone.
- Michael Arena - Apr 14, 2025
Sam is the technician who finally fixed our furnace after no one else could figure out the issue. He’s responsible, smart, and a pleasure to work with. We truly appreciated his service!
- Jake Yang - Apr 08, 2025
- Jonathan Lukito - Apr 05, 2025
We can't thank High Efficiency Cooling & Heating company for their superb service with our Heat Pump. They were recommended to us by our neighbour in our townhome complex and they didn't disappoint. Charton who is our Sales Rep/contact took the time to explain everything to us before we've made a decision and eventually had our heat pump installed over a year ago. We've had just two service calls within the year and in each instance, their promptness and attentive help have been both amazing. The last service call was today and I've again contacted Charton. I found out he's overseas on a vacation but this didn't deter him from arranging for a service department visit to check out the issue and to address it promptly. Hats off to Charton's promptness, through Marco as well who did the immediate follow -up with me for an appointment and lastly, Rana who came by today to work on the issue which is amazing. They've addressed the issue we've reported and we are completely happy with the level of service they always provide. I highly recommend them to anyone looking to replace their heating/cooling unit in the future. Charton, Marco, Rana - thank you to the three of you for your amazing help, promptness and great work!
- J Doumakis - Apr 03, 2025
Leon, the technician from High Efficiency Cooling and Heating Inc arrived on time to install a Honeywell Pro thermostat at my condo unit. He was very professional. He answered all my questions patiently and was methodical in getting the job done. Way to go Leon (Hope I got your name right).
- Bhavan Manickam - Apr 01, 2025
I was very lucky to have Mr. Sahel as the service man to fix my leaking pipe gas problem. He was very thorough and knew his job very well. Very efficient and was patient to answer all my questions. Thumbs up to the High Efficiency Cooling and Heating Inc.and five stars to Mr. Sahel. May your tribe increase!
- Toni Raagas - Apr 01, 2025
The experience with the technician was excellent. Sam was patient in answering all my queries and his work was very efficient.
- sahiba bhatti - Mar 28, 2025
Sam was knowledgeable and very helpful.and also very pleasant
- Dorota - Mar 28, 2025
Sam came over for maintenance on our furnace. He was very professional and explained every detail on how it works, what he did and what we need to do to extend the life of the unit.
Thank you, Sam! 👍
- Alin Mardare - Mar 27, 2025
Very professional. Easy to schedule. Liam & Sam were professional, tidy, efficient, knowledgeable & courteous. Would recommend! Jen
- Jennifer Smith - Mar 26, 2025
Liam and Sam are awesome and professional!
- LU XIAN ZHANG - Mar 26, 2025
Sam & Liam did a great job ! 5 star service
- Ivanka Tessak - Mar 24, 2025
I have my whole house humidifier replaced, not sure it's working well or not at this time. Will tell in winter time.
- Erika Mak - Mar 24, 2025
Great work done by Sam and Liam，nice attitude and efficient work
- Zepeng Jiang - Mar 21, 2025
- Linda Wang - Mar 21, 2025
Liam did a great job in explaining and repairing the equipment. Thank you!
- Arthur Wang - Mar 21, 2025
Thank you Johnny and Rane for your excellent customer service.
- Pjm - Mar 19, 2025
Sam from High Efficiency cooling and heating came today to service my furnace. He was very professional and on time and gave me a very detailed report on what he did today and provided me with recommendations. Thanks Sam for your visit today.
- CHANT SLEIMAN - Mar 19, 2025
My furnace system sent me an email indicating there is a blower motor fault. Harry Yan (technician) of High Efficiency Coolong & Heating Inc. came on March 18, 2025 and he diagnosed that it only occured once. However, he noticed the inductor was extremely noisy and he recommended it to be replaced since it is still under warranty, I just have to pay for the repair labour cost. Harry Yan will return when the part is available.
- Allan Foo - Mar 19, 2025
Sam did an excellent job
- Freda Woo - Mar 18, 2025
Sam came for our furnace service. He is very reliable and knows his job very well. I highly recommend him.
- Khryzz Garcia - Mar 18, 2025
We had a great experience with Sam who was professional and knowledgeable about the service provided.
- Sonia Mills-Minster - Mar 17, 2025
Very efficient
- Joanna Fan - Mar 14, 2025
Job was done to perfection. The person that installed it was extremely knowledgeable.
- Carlos Francisco - Mar 11, 2025
Sam and Rana were great and solve our problems!
- Maitê Marroni - Mar 10, 2025
Thanks Sam for fixing my furnace. He is very nice and helpful. Explained me everything and gave me tutorial for everything. I liked the services very much.
- Timothy Brooker - Mar 08, 2025
Sam did a great job in explaining and fixing the issue. Thank you!
- Arthur Wang - Mar 07, 2025
Sam was amazing. Friendly, courteous and fixed my problem efficiently. He also took the time to show me what the problem and the fix.
- Julie Burks - Mar 06, 2025
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 set ip my thermostat to get me the temperatures correctly programmed which I had been trying to do dince the fall! He made sure to wear his booties to ensure my floors would remain clean. He checked all aspects of my system, cleaned the humidifier and replaced my filters. He was welcoming when I asked questions yet totally unintrusive when I set about other tasks. Delighted with his attention to detail and his overall service. Thank you for another year of great service! See you next year!
- Doris Bauer - Mar 05, 2025
I was concerned about some heating issues in my home, called High Efficiency as they had installed the heating system.
Promptly the next day the technician arrived and spent two hours working on the issue , made sure all was good .
Thank you Harry for your patience and perseverance, for explaining the work to me.
Grateful to High Efficiency and their dedicated staff like Harry.
Can’t say enough good things about his expertise, patience and kindness.
- eileen murray - Mar 04, 2025
Liam & Sahel were very informative, professional and helpful. They installed my heater and did a great job!
- Sude Kavrulmus - Mar 03, 2025
Marco the Service Coordinator from High Efficiency Heating & Cooling has been amazing to work with. The heat pump chassis that I had purchased less than 2 years ago was leaking and so my condo wasn’t heating to temperature set. Marco dealt with the distributor and managed to get me a replacement chassis installed within days. He’s very responsive and always manages to squeezes me in at the earliest available slot whenever I’m in need of an annual cleaning or for any diagnostic. Thank you Marco & team for the amazing work!
- Phoebe D - Mar 02, 2025
Sam and Rana, very good tech
- Singkwong luk - Feb 27, 2025
Excellent service! The HVAC technician, Liam, was very knowledgeable and professional. He arrived on time, diagnosed the issue efficiently, and provided high-quality service at a very reasonable price. I appreciate his expertise and attention to detail. Highly recommended! Thank you Liam!
- Meng Chua - Feb 27, 2025
Rana, is really helping me out on fixing my HVAC, I asked the previous technician from another company last time, they mess everything up, and Rana is very professional and passion to figure out everything. And eventually I have my working HVAC back.🥳🥳
- Zachary - Feb 26, 2025
Professional and patient.
Very good experience.
- Andy Yang - Feb 21, 2025
We placed a service call and a technician came out same day within a few hours. The technician was super polite and was very thorough with checking everything and resolved the issue with my furnace within the first 10 minutes. He took the time to ensure all the thermostat settings were correct and to ensure the furnace was heating correctly before leaving. Very satisfied with the service provided by the technician!
- Gary Wong - Feb 21, 2025
Excellent service from a professional technician.
I would hire Liam again for any HVAC related issues.
- Rick Schwartz - Feb 20, 2025
- Justin Persaud - Feb 19, 2025
- carmen iacob - Feb 17, 2025
High Efficiency has shown their high level of service as well as their efficiency in dealing with our heating broken down during the holiday season and gone subzero. The thorough tested the heater and demonstrate their professionalism in quality assurance.
Thank you Marco for the unparalleled service.
We highly recommend this contractor for any heating/cooling jobs, big or small.
- Lawrence Law - Feb 16, 2025
Liam was amazing in his help to fix a number of issues including my ecobee thermostat, clearing up dead bugs from the furnace, fixing humidifier pipe, and giving me tips to take care of the heating and cooling. He was a professional through and through and I really appreciated him taking time to inspect everything.
- Aditya - Feb 16, 2025
Customer service is very helpful and the technician is very professional and experienced. Follow up is promptly and within reasonable time.
- Doris Lam - Feb 15, 2025
The technician was very knowledgeable and polite . He checked everything carefully and gave a detailed explanation about the the problem .
- Elizabeth D'Attolico - Feb 09, 2025
Harry was very professional and courteous. He found the problem quickly and resolved the issue. I have been using High Efficiency for a few years now and have not been disappointed.
- Hercules Drakopoulos - Feb 07, 2025
I recently had High Efficiency Cooling & Heating Inc. install a new heat pump system in my condo, and I couldn’t be happier with the entire experience! From start to finish, their team was professional, knowledgeable, and efficient.
- Omair Cheema - Feb 04, 2025
Very quick and professional installation
- Jerry YU - Jan 31, 2025
- Luis Barros - Jan 29, 2025
- Lindsay Silverberg - Jan 29, 2025
- Tao Yang - Jan 27, 2025
- Kin Chan - Jan 27, 2025
Extremely efficient and professional service. Replacement part for Carrier furnace sourced and installed within 24 hrs. Curteous and knowledgeable technician.
- Stuart - Jan 25, 2025
Harry did a great job. He is knowledgeable and experienced. He fixed my furnace in no time and gave some valuable advice to me.
- Angel Cai - Jan 22, 2025
Had my furnace inducer motor overheat and almost die right as the weather got cold. They came out the same day I called to diagnose it and replaced it as soon as the replacement came in about a week later (thanks Harry!).
I'm a repeat customer for a reason - their service is top notch and they're honest and fair about pricing. I can't recommend these guys enough.
- Michael East - Jan 21, 2025
Awesome service with Daniel. He is professional and nice.
- Jerry YU - Jan 21, 2025
High efficiency responded to my inquiry and provided the quote within a week and arranged the service the next day, appericate the efficiency, Harry the technician was very helpful and professional as well, highly recommended
- Ka C - Jan 16, 2025
Reliable company with professional services. My home gradually use this company's furnace, water tank, heat pump and attic insolation over the past ten years. They also installed new things quickly when the old one broken down. Liam - the technician was very skilled and solved the problems efficiently with very good manner. Thank you!
- Jane Meng - Jan 10, 2025
Our technician Harry was great. He completed the repair quickly and efficiently, and gave us helpful tips for optimizing our system.
- A N - Dec 24, 2024
Daniel did a great job. Very professional, came on time and explained everything while he was performing the maintenance work. Very enjoyable experience. Great service overall.
- Kulbir Sarl - Dec 18, 2024
Daniel, the technician, came to our house and did a through assessment of the furnace and found the reason why our humidifier wasn't working! He showed me what to look for to keep it running smoothly in the future. Very professional and very good service. Thank you.
- Jackie Fleischer - Dec 13, 2024
- Pooja Narayan - Dec 12, 2024
Ram the technician did an excellent job doing the annual maintenance of the furnace and heat pump - came on time and completed to my satisfaction
- Hema Panchapakesan - Nov 29, 2024
Jamie Lanys just sold us a brand new furnace and A/C system. He was extremely pleasant, informative, and most importantly, professional. I would absolutely recommend his services. We were very happy with the interaction.
- Matejka Mazgon - Nov 28, 2024
Your service was excellent and very fast. Daniel was very professional technician,great guy, so experienced, kind. Thanks for the professional service.
- Atilla Caliskan - Nov 25, 2024
Their technician is knowledgeable, fixed my hotel’s control system right away.
- Slim H - Nov 22, 2024
High efficiency and good service
- Xing Su - Nov 21, 2024
Courteous and knowledgeable, very professional. Sorted out my humidity issues
- d n - Nov 20, 2024
Harry很专业，做事非常细致，老板超级nice.非常专业的公司，专业的团队.
- Zhang - Nov 19, 2024
I’m so impressed with the service provided by this company. I had to change my appointment and they were friendly and accommodating. The technician showed up exactly when scheduled and answered all my questions. I will definitely continue to have my furnace serviced through them in the future
- Joni Sternthal - Nov 18, 2024
The furnace maintenance service was completed as scheduled and on time. The only thing that I was not informed of, before the servicing, is that there is now a 3% surcharge if you pay with a credit card which was never the case in the past.
- Mike - Nov 16, 2024
My furnace stopped working one morning. The fan worked but no hot air was coming out. At technician, Liam, came in the afternoon and quickly diagnosed the problem: a faulty thermostat. I replaced it from one I bought from Home Depot. The heating is back! Thanks Liam!
- Trader One - Nov 12, 2024
Excellent service. Responsible and professional.
- Michael ni - Nov 08, 2024
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
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
- Ray Woon - Oct 24, 2024
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
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
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
Annual service & contract renew. Always pleasant & thorough. Take their time & show you what they did. Respond promptly
- Carol Phillips - Oct 04, 2024
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High Efficiency Cooling & Heating Inc. | 570 Alden Rd. Unit 3, Markham ON L3R8N5, Canada