HVAC reviews in Thornwood, New York

4.6 based on 72 reviews Back to the listing
    1

    CREATES MORE PROBLEMS TO MAKE MORE MONEY:

    CNS Heating & Cooling, Inc was called out in summer to address my AC system not cooling. While at the end of the day, the AC was working, it was not until October when I went to turn my heat on that I realized my heat was not working. I went back to the original invoice from CNS where it explicitly says wiring was removed from the boiler and heat would not be working, stating I would need a follow up call (and charge) for my "fixed" system to work.

    Upon trying to call and get the issue resolved, I was borderline reprimanded by the office manager for "not knowing what I was talking about", even after they themselves read the invoice back to me stating "I should have known this because it was on the receipt". For reference I am a general contractor, so while I don't pretend to know more than the HVAC tech, I do know more than the average Joe and understand how to read wiring diagrams that clearly show a jumper needed.

    Attached photos where you can see the thermostat wiring (white cable) cut off at 3 of the 5 wires. There is currently no communication between my Thermostat and my boiler.

    So if you want your systems fixed without having to pay for their mistakes, don't call CNS.

    EDIT***: The purpose of my call was for CNS to fix their mistake. For the hours worth of work to reinstall the jumper that was removed (whether or not it was wired incorrectly in the first place), CNS would rather reply to the reviews trying to discredit me as a disgruntled customer by saying I should be paying for a follow up visit to fix the wire they removed.

    5

    Charlie from CNS swooped in and saved the day (and my bank account!) My historic home needed a brand new steam boiler and CNS was very forthright in the quote and work that needed to be done. I appreciated Charlies honesty about what would be best in my situation. All work was done in a timely and respectful manner. A thorough check of all the steam pipes once installation was done ensured everything was running smoothly. The office personal were also very pleasant to communicate with.

    5

    Excellent Service and Reliable Team!

    We had a fantastic experience with CNS Heating & Cooling! From start to finish, their team was professional, punctual, and extremely knowledgeable. They presented a good solution for an HVAC system in our 100+ year old home and installed it quickly and according to the agreed-upon schedule. What also stood out was their clear communication and honest pricing—no surprises, just quality work.

    Everyone we interacted with was friendly and respectful, and they took the time to explain everything clearly. I highly recommend CNS Heating & Cooling to anyone looking for dependable, high-quality HVAC service.

    5

    I was very happy with the service I received from CNS. The office staff was very accommodating and pleasant to deal with. On the day my new ac unit was installed the men arrived early and did an outstanding job with the installation with minimal disruption. Most importantly they cleaned up before they left. I would recommend this company to anyone needing ac service.

    5

    CNS came by yesterday to service our HVAC system. Very professional, no delays, arrived within the scheduled time frame and also was easy to find an appointment. Prices were fair and aligned with market rate but just appreciated how easy they made everything. Will definitely be working with them again in the future!

    5

    They swooped in ahead of schedule (by ten minutes) and succeeded in running a long-overdue (my bad) maintenance and descaling effort on our Navien. Leo, Michael & CNS company were excellent.

    5

    Simply the Best! Better than all the rest……..professional, honest, reliable, responsive and courteous. It was a pleasure working with Charlie, his technicians and office staff. Happy the day a friend recommended CNS to me.

    5

    I recently had the pleasure of working with CNS Heating and Cooling, Inc. for a full A/C system installation, and I couldn't be happier with the service. From the moment I called for a quote, their team was professional, courteous, and incredibly knowledgeable.

    The installation was smooth and completed right on schedule. The technicians were punctual, respectful of my home, and cleaned up thoroughly after the job. Since the installation, my home has been noticeably more comfortable. I also appreciated the follow-up call a few days later to make sure everything was working well and to answer any questions I had.

    Overall, CNS Heating and Cooling, Inc. exceeded my expectations. If you’re looking for reliable, high-quality A/C service with great customer support, I highly recommend them.

    5

    I recently had a Navien combi-boiler system installed. The technicians were highly professional, courteous, and efficient throughout the process. I strongly recommend their services to anyone looking for quality HVAC work.

    5

    Our HVAC system was getting old and outdated. We got a few referrals and bid it out to about 3-5 companies. Charlie at CNS bid and gave us two different system offers. He was the only one who spent hours on the phone with us going over every detail of what we should get and why based on our house configuration. To boot his pricing was far superior to any other offer. We chose CNS and have been very pleased and happy with our choice.

    Additionally, recently we called Charlie to consult and diagnose a minor problem with the hot water heater that was installed. Charlie came over within a few days and spent at least an hour diagnosing the potential issue and solution. He spent time speaking to the manufacturer as to how to solve the issue. Within the week he came over again to make some changes to the heater

    and after further time spent running tests he suggested how to solve the issue.

    Great and personable service at very reasonable pricing. You can’t beat that combination. Highly recommended.

    5

    I recently had a consultation with One Hour Heating and AC, and I couldn’t be happier with the service. Kelvin stopped by my home and provided honest, straightforward advice about running additional ductwork. He was professional, knowledgeable, and extremely helpful, giving me a clear understanding of what to expect during the process. I truly appreciated his guidance and would highly recommend him and One Hour Heating and AC for anyone needing HVAC expertise.

    5

    Call one hour for a leaking water heater they came right away ! Provided with plenty of options and also gave me payment plan options. Work was done the same day very clean work nice people.. I recommend to call one hour and I promise you won’t be disappointed!!!

    5

    Fast and very professional service. Explained what would be better for us and an estimate. The day of replacing the furnace they were on time and other men showed up with Mark. When we saw the crew we knew they would be able to get it done fast. Great job.

    4

    Diagnosis of heating problem- heating fan in air handler seized up

    5

    Fast reliable service.. very professional

    5

    First experience with this company was pleasant all around....

    5

    On time in Budget and professional!!!!
    Thanks Guys.,,,.,,

    5

    This is a national wide company that provides the best guarantees and warranties and promises in the industry. What a refreshing change to dealing with private equity own companies that are only interest in their EBIDTA bottom lines.

    5

    This location's attention to detail begins at the leadership level! They look to hire the very best to bring quality service in the home! If you're in Stamford area and need some HVAC help, this is where I would look first!

    5

    Exceptional service from start to finish. Very impressed by there professionalism and knowledge of my equipment....

    5

    My heat was not working.. tech came in and found issue with my furnace and I had heat the same night.. very reliable