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Best air conditioning pros near Key West, FL

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Top-Rated Air conditioning pros in Key West - Updated Nov 2026

Avatar for Cool Aid Air Conditioning Of SW Florida, Inc.
Cool Aid Air Conditioning Of SW Florida, Inc.
4.4(
84
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Key West, FL and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"The owner Dave was very responsive and easy work with. Zack and Matt were extremely punctual, informative and communicative. They were able to answer any questions, no hard sale approach. We had 4 estimates, all close though we felt we received the best value from Cool Aid Air. Very neat, efficient and the product, Mitsubishi mini splits are wonderful. My wife and I deliberated as she was not a proponent of minis but absolutely loves them. Quiet and efficient.ful. he company and personnel. Highly recommend t"
Response time10 mins
Recommended by93%of homeowners
Avatar for Powerhouse Air Conditioning, LLC
Powerhouse Air Conditioning, LLC
4.6(
11
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Key West, FL and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"They installed a dual-zone Mitsubishi mini split system in my home, did a wonderful job! Best purchase I've made, I love my mini splits. They are quiet and cool the house in a short time, they look great and were installed professionally with required permits. Highly recommend this contractor for all AC installations and services. They've serviced and cleaned them as well, came with a 12 year parts warranty. I will not let anyone else work on my AC!"
Mini Split Install
Line Set and Drain
Air Handler
38" Aluminum Stand
Response time7 hrs
Recommended by90%of homeowners
Core Mechanical
4.4(
28
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Key West, FL and surrounding areas

In business since 2004

Emergency services offered

Credit card accepted

"Core Mechanicals' tech Jason came in and inspected our A/C system. We had problems with it freezing up. They checked the pressures and added refrigerant to fix that. They did an inspection of the entire system and found our air handler to be extremely dirty. He removed the handler and brought it outside where he thoroughly cleaned it (it took a couple of hours to do. It had a lot of dirt and hair. It was really gross to see that was where the air that my family and I were breathing in came from!) The system is almost 5 years old and he removed the dirt and hair that had accumulated in it over that period of time. I highly recommend getting that done by them! The air quality in my house is so much better now. My family's allergies have been so much better, especially with the dog in the home. My system works and cools much more efficiently and they showed me how properly install the filters, that is very important for capturing dirt and dust. So worth the cost! Cleaner air and my electric bill was even a little less! Jason was very informative and explained the workings of my system to me, I never really gave it much thought before. I am having them back out to install UV light/ air purification system. I highly recommend them! Very prompt, knowledgeable service, very professional! Jason said he works from Key West all the way to Key Largo, and works on all brands. I believe they are a Lennox dealer and they also do pool heaters. They are my A/C guys from now on!
"
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Recommended by87%of homeowners
Avatar for Xelor Air And Heat Corp
Xelor Air And Heat Corp
4.2(
10
)
Air Ducts & Vents - CleanCentral A/C - InstallCentral A/C - Install - For Business+4 more

Serving Key West, FL and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Their service and professional is amazing. They have the best pricing and top of the line quality in the AC units they sell and install. The work is done fast and without a mess. Available anytime you call them, and will resolve any issue you may have relating to your AC. A+ company"
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+2

Recommended by80%of homeowners
major league contracting services
5.0(
10
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Key West, FL and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"I had debated installing a new system for months. I shopped around; looked at reviews; and decided to go with Major League Contracting Services! The owner, Laz, came from Miami to my home in West Delray to give me an estimate. He said my current unit was too small, and that after 12 years it was time to replace it. We agreed on a price, and set an installation day. They came up on a Saturday and installed my new "York 3.5 ton unit." The air handler is in my attic so it was a tad tricky. After a couple of hours the unit was installed! The installers were very quick, informative, knowledgeable, and polite. Laz even came up and explained the work and even offered to file my registration with York. If you want to work with a local company that goes above and beyond to provide excellent service as well as a competitive then Major League Contracting is the company to use. Call Laz today at 786-344-1846."
4 TON RHEEM...Flood Zone....
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+13

Recommended by100%of homeowners
Ellington Air Conditioning & Heat
4.0(
7
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Key West, FL and surrounding areas

In business since 1998

Free estimates

Warranties offered

"I called Ellington Ac to see about a quote for our House in Marathon Key, I had scheduled a free quote . The Morning of the quote Mr. John Page called before hand to let me know he was on his way to the house to present a quote for a new hvac unit and ductwork, For starters he was On time and that is a good sign. He knew all the answers to any questions we had about the Trane Hvac unit. And Ductwork. He even used a thermal Camera::: How impressive:::We decided to go forward with the quote and got the middle of the road unit. The day of the installation Mr Page met the Crew at our House to introduce us to the Installing crew, they were all excellent to have in my house. Very cautious of all our belongings and also worked non stop until the job was complete. They are top notch , attention to detail was excellent ! No corners cut. Thanks again Ellington Ac your my new Go to company when I'm in need! We can't say enough good things about you John page and your installation Crew. Hats off to you all ."
Recommended by83%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Key West, FL and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Computer did the "gotta send info to Microsoft" but when tried to reboot it ran through automatic repair without success. I did all the alternative without any success. He came and picked up the hard drive on Tuesday and returned it on Saturday. Fortunately he was able to "restore" without any data loss. Very happy with outcome."
2014 Super Service Award Winner!
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Recommended by97%of homeowners
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Air Conditioning FAQs, answered by experts

The outdoor portions of air conditioners are designed to weather the rain, so you don’t need to worry about it. An awning or roof will help protect them from snow or falling debris, which can do more damage. This is true of both window AC and outdoor units for larger systems.

Yes, you can put an AC unit on the roof of your home or commercial building. For proper installation, you’ll need to ensure the roof surface is flat, it’s accessible for maintenance and cleaning, and an AC installation pro agreed that your home is a candidate for package units. Don’t forget to consider the climate in your area, as homes that experience frequent tropical storms or hurricanes may not benefit from this type of system.

The $5,000 rule for HVAC systems helps homeowners decide whether to repair or replace an AC or furnace. Take the quote for the HVAC repair cost and multiply that by the age of the HVAC system. If the total is higher than $5,000, it’s more cost-effective to replace the system. If the total is lower than $5,000, consider repairing the system.

If you know how to identify supply and return ducts, you’ll find that only the supply ducts will have dampers. Although your return ducts can have dampers, it’s not common. If you have one return duct that is pulling in too much air, adding a damper to it can help with overall system performance. However, dampers on return ducts are not a necessary addition for most homes.

It is normal for the attic to be hotter than the rest of the house in the summer, but only by about 10 or 20 degrees. Attics that aren’t properly insulated or ventilated can reach temperatures of 130 degrees or more which can cause damage to the home’s structure, including the roof, wood framing, and HVAC system.

The Key West, FL homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.