*The Angi rating for Air Conditioning companies in Greenwich, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.
*The HomeAdvisor rating for Air Conditioning companies in Greenwich, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.
Last update on August 10, 2026
Serving Greenwich, CT and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"First time customer and we have asthma so need this fixed promptly. Very happy with the service. AC working great now!"
+172
Serving Greenwich, CT and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"I was very happy with my experience using this company. In the middle of a heat wave, right before the July 4th holiday, my AC stopped working. The man who installed it and had been servicing it was too busy to come for a week. I called MSD and was given an appointment for 8 AM the next morning. They were prompt and courteous, fixed my problem, and were reasonably priced. I will be calling them in the future."
+1
Serving Greenwich, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"The assigned technician, John, was on-time, knowledgeable, provided suggestions, and thorough. Oftentimes, people don’t realize how important this service is. If I were you, I would book AC Air Duct cleaning!"
+29
Serving Greenwich, CT and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Excellent experience. AC broke down during heat wave! Response was immediate and issue was resolved same day with replacement of outdoor condenser unit. Smart and professional. Highly recommended."
+6
Serving Greenwich, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Victor recently replaced my home AC unit. I have been using his services for many years. I have found his prices to be reasonable and the quality of his work superb. He does the work, not an apprentice or a new grad that you get with many other places. He has also always been quick to respond to emergencies, never longer than the next day."
+38
Serving Greenwich, CT and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"Y&M did a great job cleaning our air ducts and adding UV system. Very thorough and professional. Excellent service and plan to use again."
Serving Greenwich, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Wornderful job from the guys they were on time and left the house in excellent condition after the job was done, will definitely recommend them to my family and friends."
+2
Serving Greenwich, CT and surrounding areas
Approved
In business since 1969
Free estimates
Emergency services offered
"I was very happy with my service call today! The repairman, Scott, was knowledgeable and pleasant and wore a mask and gloves throughout., so I felt safe, despite the pandemic. He serviced both of my central air systems and diagnosed the problem with the malfunctioning one and fixed it. By the time he left my house was already a much more pleasant place to be!"
+13
Serving Greenwich, CT and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Entire house air duct cleaning and sanitation. Very efficient friendly came with masks gloves and bootie shoe covers. Fast and efficient very accommodating."
+29
Serving Greenwich, CT and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"The plumber was berybeasybto deal with and very experienced. He did a great job."
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