Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Key West, FL

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Key West, FL?

Select your specific project to find the pro for you.

TRUSTED BY KEY WEST, FL HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon85
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Key West

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 RepairElectric Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair - For Business+4 more

Serving Key West, FL and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"We couldnâ t be happier with the services we received from Powerhouse Air Conditioning LLC. Deanâ s response time to calls and messages were faster than any other company we have tried to contact. He came right out to our house, found the issue, then walked us through our options. He was both honest and professional. I would HIGHLY recommend Dean and his company any day!"
Mini Split Install
Line Set and Drain
Air Handler
38" Aluminum Stand
Response time7 hrs
Recommended by90%of homeowners
Core Mechanical
4.4(
28
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Key West, FL and surrounding areas

In business since 2004

Emergency services offered

Credit card accepted

"They came to the house 30 minutes after calling about a broken air-conditioner. This was about 7:00 in the evening. He was able to find the problem and repair it in approximately an hour. I was very relieved that they could fix it, without replacing the compressor. Great service and very professional. I feel the price was fair for an evening service call. Thank you Jason Daniels.


"
Additional Photos
Recommended by87%of homeowners
Ellington Air Conditioning & Heat
4.0(
7
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 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
...
Showing 1-10 of 59
Heating and Air Conditioning questions, answered by experts

Absolutely! You can seriously improve the overall value of your home by maintaining high-quality, compatible systems for heating and cooling. Potential buyers will love not having to worry about getting a new HVAC unit for 15 to 20 years and will pay more for it. For maximum efficiency and cost savings, replacing the furnace and air conditioner at the same time, when possible, gives you (and potential future buyers) reliable comfort and modern convenience.

There are ways to detect a refrigerant leak with several different testing methods. However, most homeowners can figure out something’s wrong with their AC unit by noticing these common signs:

  • Ice forming on the evaporator coil

  • Water leaks near the AC unit

  • Frequent hissing sounds

  • Increased electric bills

  • Unit takes longer than usual to cool

  • Unit is blowing hot air

As a general rule, you should have your HVAC system professionally serviced at least once a year, though it's best to follow the manufacturer's specific recommendations. Many experts suggest twice-yearly maintenance: once in the spring for the cooling system and once in the fall for the heating system. This is especially recommended for older units, systems with recurring issues, or heat pumps that provide both heating and cooling. Regular service, which can cost between $100 and $550, keeps the system running efficiently, helps prevent costly future repairs, and saves money on utility bills.

Air filters with a high MERV rating, 11 or above, shouldn't cause airflow problems in most residential systems. However, the airflow can be restricted in some HVAC systems if they aren't designed for high MERV ratings. If in doubt, a local duct installer should inspect your ductwork so that you know what your system can handle.

During the summer, it’s best to set your AC to 78 degrees when you’re home and awake, according to the Department of Energy (DOE). For better energy efficiency, raise the temperature slightly to 85 degrees while you’re out of the house. The National Sleep Foundation advises lowering your thermostat to between 60 and 67 degrees when you’re asleep.

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

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