4.5 
489 *The Angi rating for Heating And Air Conditioning Service companies in Union, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Union, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on May 18, 2026
Serving Union, NJ and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Came to my house to fix an HVAC problem which turned out to be an electrical problem. Anton did not charge me for his time and gave me recommendations as to my next step to fix the problem. Highly recommend."
+107
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Excellent professional and experienced service. Arrived on time, reviewed and completely tested and adjusted system. I have found a new HVAC and plumbing service. I highly recommend them to others in need of plumbing or HVAC service."
+11
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"My heating system wasn’t working properly, so I put the job at Angie’s list and Ray was the first one to call, very professional and he sent his tech (Isiah) right away and was able to remedy the issue in a timely manner. Very happy with the service with Ray’s HVAC and Isiah. Saving their contact details as my HVAC guy from now on."
+1
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Emergency services offered
Warranties offered
"A lifesaver! Kyle explained everything in a way that I could understand and was patient when he had to repeat himself. He is truly a professional who will be recommended to anyone looking for an honest HVAC person. Thank you again Kyle!!"
+22
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Free estimates
Emergency services offered
"We recently had the pleasure of hiring Dawson Mechanical to have a new Navien tankless water heater installed. This was a little more than a straightforward job since the water heater was being relocated from a utility closet to the garage which was about 20 feet away. From the time I made the first call to Dawson, I had a good feeling about this company. Dave came over within a few days on a Saturday to look the job over and give me an estimate. He is very knowledgeable and took the time to answer any questions we had. When the day came for the installation, a crew of 3 workmen arrived around 9:00 AM and did not stop until the job was finished around 5:00 PM. They did an excellent job, were very good about keeping everything clean and neat, and the workmanship was top notch. In short, we were very happy with everything and would not hesitate to use Dawson for our future plumbing/HVAC needs."
+20
Serving Union, NJ and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"Cleaned what they could. Couldn't clean heater/ac because water heater in the way."
+13
Serving Union, NJ and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Sheldon - the technician - was competent and friendly and stuck around to understand and explained some unusual behaviors of the furnace. Had to change a thermo coupler."
+26
Serving Union, NJ and surrounding areas
Approved
In business since 2020
Emergency services offered
Warranties offered
"Replaced & installed 3 ton coil & 3 ton condenser unit by Tony. He was prompt to respond, friendly and knowledgeable. I will continue to use him for any of my HVAC needs in the future."
+27
Serving Union, NJ and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Communicated through the job was great., Samer was knowledge about my HVAC systems and offered solutions to fix my heating issue . Confident to call again for other HVAC issues."
+17
Serving Union, NJ and surrounding areas
Approved
In business since 2000
Emergency services offered
Warranties offered
"Quick estimate appts, and fast service qppts. happy with the work they did to bring my hvac system up to code."
+12
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