- Hoi Kwan Lee - Aug 21, 2025 - Reviewed on Google

Fast and great service!

- Kevin Higa - Aug 19, 2025 - Reviewed on Google

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 - Reviewed on Google

- Season Chan - Aug 17, 2025 - Reviewed on Google

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 - Reviewed on Google

Knowledgeable and hardworking .Found the solution pretty quickly

- Jamaal S - Aug 15, 2025 - Reviewed on Google

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 - Reviewed on Google

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 - Reviewed on Google

Very good experience and get the job done very efficiently.

- Ghassan Rashid - Aug 14, 2025 - Reviewed on Google

Technician was on-time, friendly, competent, clear and straightforward. Highly recommend

- Erin Hobin - Aug 14, 2025 - Reviewed on Google

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. One idea that the technician gave me was to shut off the A/C system when the outside fan stops, to avoid further damage.

- John Sparkes - Aug 12, 2025 - Reviewed on Google

Sam and Giran were great! They were prompt, polite and efficient. I would recommend them to anyone!

- Ian Perry - Aug 12, 2025 - Reviewed on Google

AI customer service works amazing for my first phone call, the technician is super professional and knowledgable. He quickly diagnosed the issue and provided the good reccommendation.

- Jun Zhang - Aug 12, 2025 - Reviewed on Google

My 18 years old AC broken down and I décider to give High Efficiency Cooling & Heating Inc. a call, as they were the one that installed the system. To my surprise, the company quickly sent they Tech to have a diagnostic. The price is reasonable. Girin, the tech was very knowledgeable and friendly. He explained all the issues and was quickly resolve the issues, without upselling a new AC unit.
I highly recommended this company.
I will definitely use this company for future maintenance and repair.

- Tiffany N. - Aug 08, 2025 - Reviewed on Google

Had a great experience with High Efficiency Cooling & Heating Inc.! From start to finish, the entire team—from sales to the technicians—was professional, knowledgeable, and efficient. They provided honest advice on what would work best for my home, installed the new AC, and fixed the issues with my air handler quickly and smoothly. Everything was done on time and with great attention to detail. Highly recommend them for anyone looking for reliable and high-quality HVAC service!

- Aakash Rohra - Aug 08, 2025 - Reviewed on Google

Great work and super friendly! Had it fixed in no time!

- Gavin Smith - Aug 07, 2025 - Reviewed on Google

- Denny Yang - Aug 06, 2025 - Reviewed on Google

Big thanks to Liam and Girin for getting our AC back up and running! They were punctual, professional, and efficient. They replaced the part, tested the system thoroughly, and made sure every was working before wrapping up. Highly recommend their service!

- Irina Balzamova - Aug 05, 2025 - Reviewed on Google

Great service — they did a good job and were very professional. Thank you!

- Wang Yuanyu - Aug 04, 2025 - Reviewed on Google

Amazing service. Good technicians. Friendly guy. You tell them the day and they are there! Trust