03 January 2024 23:26
Nathan T provided excellent HVAC service today. Efficient and professional. Explained clearly what he did and the results of his tests. Left the area clean and orderly. Thanks Nathan!
05 December 2023 10:21
Prompt response to my service request was appreciated.
Service rep identified the issue and corrected the problem.
21 November 2023 7:20
Josh was extremely professional, polite & helpful. Heat pump maintenance is easy with Northern Air & Mechanical. The very best with your new ownership. Keep up the good work.
22 September 2023 20:19
Nathan Trottier was terrific. Arrived on time. Friendly and respectful. Patiently answered all my questions.
19 September 2023 19:02
Love 669
Heat. They're reliable and have great service. We've never been disappointed with their employees!
11 July 2023 17:45
Where can I start. We had a technician come into our home to install a thermostat. We needed wires installed so that the thermostat could work. The technician did the job and told us our equipment was 100% working. When he was leaving I noticed we couldn’t control our fan and the thermostat was set to a boiler (we have a gas furnace). So my dad rushed to his van and asked him why the fan wasn’t working he said you just had to configure the thermostat and it should work and he drove off. I talked to the technician again he told me he was coming right back and I replied I will be waiting. I called back four times and patiently waited four hours. I was promised by the last person I talked to from the call centre that someone would come today. Then the manager called me and gave me the run around saying he’ll do his “best” to have someone over tomorrow. I’m speechless I’ve never dealt with such an unprofessional badly managed company before. We will never be calling them ever again after they finish the job that should’ve been done correctly. The honest truth is that their technicians didn’t want to come back because they want to watch their precious Maple Leafs game. Well I hope the Leafs will lose. We paid 190$ for someone to install a thermostat incorrectly. We should get a credit towards the wire installation!
22 June 2023 7:11
Mitul did maintenance on our Furnace. Technician was very thorough and informative. Actually took photos of everything he worked on. Exceptional service!
05 June 2023 14:51
Good knowledge of Heating system and good response of every question I have. Definitely I am recommending this company and guy to everyone.
05 June 2023 11:31
We had our furnace and central air serviced today by Wei Wang. We are happy with the service received as he was very courteous, efficient and friendly. Thank you Wei!
30 May 2023 16:39
Wei is a good technician. He is so professional to help me fix my furnace problems. Highly recommend him to do the service
29 May 2023 15:56
Great experience with the entire sales team at 669 heat. All four of them (James x2, Kyle and Amelio) were personable and made the experience enjoyable, and finished the job in a timely manner. Can’t wait to fire up my new A/C unit this summer. Thanks again!
27 October 2022 4:10
Very polite and knowledgeable staff, prompt and professional and it feels great to know our furnace and A/C are working as effeciently as possible
25 September 2022 14:05
Our A/C unit needed replacing. They were able to accommodate our needs very quickly and professionally.
12 September 2022 7:01
Always great service. They replaced the thermostat sensor that stopped functioning after only 2 years.
24 August 2022 13:35
Called 669 Heat about my water heater which was not working. Friendly staff, showed up in a timely fashion and diagnosed the problem. All good until the tried charging me $375 for a $48 part. So glad I checked Home Depot. Parts mark up is expected but 8.3 times retail, shamefully greedy.
15 August 2022 12:36
Both installation crews answered questions when asked cordially.
When issues were brought up, both installation crews addressed our concerns. Work was started and completed as agreed.
24 July 2022 12:40
The guys were very friendly and very competent. They put our new Furnace and AC in and answered all of our questions. They even did a good job of cleaning up after the job. I highly recommend them! Thanks!
22 July 2022 5:22
Our Carrier ductless A/C unit was showing an error and wasn’t cooling after starting it up for the first time this summer. Josh came out the next day to assess it, and found it would need a new motherboard. He ordered the part, it arrived a week later, and Josh returned to install it 2 days after it had arrived (my earliest convenience). He had the old one removed and the new one installed in the same amount of time it took me to wash a sink full of dirty dishes! He also took some extra time to explain some functionalities of the system and remote. Super efficient, kind, and worth every penny.
05 July 2022 1:06
We have been dealing with this company for many years. Service is always professional and courteous.
01 July 2022 16:15
Our hot water heater is nearing the end of its life and the first time our pilot needed to be cleaned we had called a few companies with all of them stating they wouldn’t be able to come in within a week. We then called 669-heat and not only were they quick to answer and helpful over the phone, but they sent a technician within the hour. Ray was so informative and let us know what we needed to look at if this happens again. Price was fair and the work was well done. The second time our pilot light went out we called again and spoke with Emma (very helpful and lovely on the phone) who directed us to Kyle. Kyle came to our home within a couple hours, fixed the issue and was able to inform us on the next steps now that this has happened a second time. We requested a quote for a new water heater and will be using them again in the future.

Price is fair, the work is top notch, and the service and information given by both technicians all culminated in great service. We recommend this company to anyone.
12 June 2022 16:46
Had a new furnace and a/c unit installed last fall. I tried to turn on a/c, no go! Called 669-HEAT spoke with a lady and within 5 minutes a technician called me back and walked me through it. Great service as always. Thanks!
02 May 2022 7:26
Technicians arrived on time worked extremely well together pleasant knowledgeable easy to speak with great value for furnace and ac installation would highly recommend to everyone
29 April 2022 15:24
I have only gotten a quote so far but Jacques Beaudoin was friendly, knowledgeable answered all my questions helpful i still have to think things through but I would highly recommend.
24 April 2022 9:56
The man that came to fix our fireplace was polite explained everything to me I felt as though he was very competent I was very pleased with what he did.
11 April 2022 20:22
Service, price and equipment is and was top notch! I had asked some people who had used Northern Air and how the company was to deal with before I went ahead. The people that used them said they were very happy with their service even after they had their furnace and a/c installed. Some had a few minor issues that were resolved and taken care of promptly. I would recommend dealing with Northern Air. We are glad we did.
23 November 2021 2:05
Absolutely awesome experience, from the sales team (Kyle) to the install guys led by Mike. Will let my family and friends know you folks are the one to choose! Excellent job!
18 November 2021 22:54
Very Professional- arrived on time did an excellent job I recommend this technician and 669 Heat Northern and Air and Mechanical Systems Inc.
11 November 2021 14:23
We've been extremely happy with the customer service and the technicians from this company. They're responsive, polite, informative, and just overall good people. Prices are comparable, and quotes are clearly explained. I wouldn't hesitate to recommend them to anyone.
06 November 2021 8:29
John was very pleasant and easy to understand, and asked me if I had any questions. I just had shoulder replacement surgery and even asked me if I needed anything moved or done. This is above what he does. Very well appreciated. Thank you
20 October 2021 0:49
The service received was great, the rep showed up early, was very friendly and efficient! He explained the work that was done, and assured me everything was in a good working condition, being a new homeowner and not having much knowledge about maintenance he gave me lots of information! Will definitely use there services again
13 October 2021 7:28
We have been using Northern & Air Mechanical Systems for a number of years and have been very happy with their maintenance work.
11 October 2021 3:30
Rude person you sent
As an indigenous person i do not need to be told my treaty rights and who owns the land
I was not afforded the opportunity for financing on approved credit as it says on your website but instead told my history by a non native man
I do have credit approvals presently
Waste of my time and a waste of your companies time
So to all First Nations Reserves in Ontario
PLEASE DO NOT CALL OR HIRE 669 Heat as they dont approve first nations people.
06 October 2021 8:23
Took care of my annual furnace maintenance and whole home duct cleaning. Very professional service and did the work in a timely manner.
18 September 2021 2:23
I've used Northern Air for years because they're always good to deal with and feels like a smaller shop you can "pick up the phone and call"
Very good service and always professional.
16 September 2021 12:34
We were very happy with the professional job Mitul did in testing our Furnace, a/c unit and fireplace.
14 September 2021 11:53
Michael was friendly and knowledgeable about he was doing. Got right to the job and kept going till it was done. I was curious to see what he was seeing while cleaning. He was accommodating showing me before and after photos. I feel much more confident about my ducts and ready to go when it's time to turn on my furnace. Thanks for making this an enjoyable visit!
13 September 2021 0:02
Very professional and courteous, he followed all Covid19 protocol without hesitation. He explained what needed repair. I have been using this company for over 15 years, and very pleased. The service person was Josh.
03 September 2021 20:57
I’ve been using Northern Air for about 3 years now and couldn’t be happier with the service. Every time they have been able to come and assess the situation the same day and resolve it the same day (unless parts need to be ordered). Will definitely be staying with them!
03 September 2021 2:41
Always a positive experience. Most recently Mitul performed a thorough annual inspection and maintenance of our furnace and air conditioning systems.
27 August 2021 8:50
They installed our ductless AC unit, excellent work! Super nice guys, showed me how to use the machine and they did a great job with clean up when they were finished! Excellent service, would highly recommend them to anyone looking for their services.
20 August 2021 6:39
Very good customer service, maintenance did a thorough check and clean of system, overall satisfied with services provided
15 August 2021 17:04
They were very knowledgeable and identified possible issues and solutions which was much appreciated.
10 August 2021 4:31
Wow great customer service. Your boys are almost done and they have been professional, Clearly experienced and patient. They answered all my questions, with friendly smiles. Very pleasant. GREAT JOB, thank you

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