4.5 
605 *The Angi rating for Heating And Air Conditioning Service companies in Smithtown, NY 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 Smithtown, NY 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 July 31, 2025
Serving Smithtown, NY and surrounding areas
Approved
Super Service Award Winner
In business since 1999
Free estimates
Emergency services offered
"Rafael did a wonderful job installing 3 zone split HVAC system. On time, very clean and neat install. All questions gladly answered, just a great experience."
+173
Serving Smithtown, NY and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Excellent service,knowledgeable,fast,reasonable price, I highly recommend to anyone that needs HVAC services."
+1
Serving Smithtown, NY and surrounding areas
Approved
In business since 1995
Free estimates
Credit card accepted
"Eric showed up for the estimate on time and called back a few days later to check in. Eric and his crew replaced my central air today. They showed up on time and got right to work. The install went quick and it looks professional and neat. Will recommend him to anyone needs HVAC."
Serving Smithtown, NY and surrounding areas
Approved
In business since 2007
Free estimates
Warranties offered
"The guys at MassAir made having to get new central AC units installed, repairs on older units, new vents and ductwork, etc., actually a pleasurable experience! It is a family owned business, and I found Joe and his son Michael to be a real pleasure to work with. They are an extremely professional, proficient, knowledgeable, honest and hardworking team, and I trust them with any HVAC related projects that I have in the future. I 100% recommend giving these guys a call for your HVAC needs! -Mike Vedder"
+9
Serving Smithtown, NY and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"It went very well. The workers were professional, clean, prompt. They did a great job."
Serving Smithtown, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"The worker came on time and did a great job cleaning the dryer vent from the outside and inside my home."
+29
Serving Smithtown, NY and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"Everyone from the owner of the business down to the technicians were very professional, cardio, and thorough Any questions that I had, they answered completely, and in a language that I understood. I would highly recommend just chillin!"
+7
Serving Smithtown, NY and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"Kyle installed my AC system in 2023 and I have nothing but good things to say about him and his company. I had him come back recently to trouble shoot my heating system and he really went above and beyond what I expected. I would recommend this company for any of your HVAC needs."
Serving Smithtown, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"Joe was very respectful, personable and patient and explained what he would do and why to ensure our central air would finally work. It took ALL DAY but he installed an exhaust fan in the ceiling with attic ducts to draw out hot air, performed a chemical wash of the condenser, installed a wifi thermostat that required a new transformer and taught me how to use it. I LOVE being able to monitor indoor and outdoor temps on the app and I can see that our summer tenants are using it and that the AC is working great when needed."
+11
Serving Smithtown, NY and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Jonathan and his crew were very professional. There were no hidden costs. Quoted price, installed on time, cleaned up and made sure everything was working accurately. I would highly recommend them to anyone looking for HVAC work. I was very impressed by their quality."
+2
From average costs to expert advice, get all the answers you need to get your job done.
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