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TRUSTED BY KEY LARGO, FL HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon88
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Key Largo, FL

*The Angi rating for Heating And Air Conditioning Service companies in Key Largo, FL 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 Key Largo, FL 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 October 26, 2025

Find Heating and air conditioning pros in Key Largo

Avatar for Ice City AC, Inc.
Ice City AC, Inc.
4.9(
212
)

Serving Key Largo, FL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Ozzie was able to quickly repair my HVAC system and had great customer service. Overall extremely satisfied"
New Rheem Shorty Install
High Efficiency Installation
Jayden Mr.IceCity Checking pressure.
Mr.IceCity cooling off
Ice City AC Junior shirts

+3

Response time4 hrs
11 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for One Hour Air Conditioning & Heating of Miami
One Hour Air Conditioning & Heating of Miami
4.4(
13
)

Serving Key Largo, FL and surrounding areas

Approved

In business since 1987

Emergency services offered

Warranties offered

"They did an excellent job & were very professional. My air conditioner is like brand new again. I would highly recommend them to anyone. They also have a membership package for maintenance which is well worth it and I highly recommend that as well."
Testing Outdoor Unit
Testing Outdoor Unit
Greeting Clients
Working On Indoor Unit
Testing Indoor Unit

+7

45 neighbors recently requested a quote
Recommended by100%of homeowners
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ARI AIR MECHANICAL LLC
5.0(
4
)

Serving Key Largo, FL and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"My experience could not have been better, every time I needed Ariel. More than once my medical practice has had air conditioning problems and he has done everything he could resolve the situation as fast as possible. The same has happened at my home. I have the utmost respect for him and his business. He is efficient, very responsive and his price is very fair. He has never disappointed and I think anyone can expect the same outcome!!"
4 Ton System
4 Ton System
Residential Installations
Residential Installations
Residential Installations

+6

1 neighbors recently requested a quote
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Avatar for S.B.R.P.E CONTRACTORS, INC.
S.B.R.P.E CONTRACTORS, INC.
5.0(
7
)

Serving Key Largo, FL and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"Excelente servicio me presto el señor, muy amable, y profesional, quede satisfecha de sus servicios, lo puedo recomendar a otras personas,. Excelente servicio me presto el señor, muy amable, y profesional, quede satisfecha de sus servicios, lo puedo recomendar a otras personas,."
Response time5 days
Response rate100%
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Avatar for City Electric Engineering, Inc.
City Electric Engineering, Inc.
5.0(
6
)

Serving Key Largo, FL and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"Installed a 'ULTRA VIOLET LIGHT' above my A/C Filter to kill germs, was done Very Professionally with out creating a mess. Arrived on time and ready to do the work needed to get the job done.Cost was Very Reasonable, cleaned and put all things back where they belonged. when asked questions answered in a way that anyone could understand. Will use him always for any Electrical Work at home or Business."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

Recommended by100%of homeowners
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Core Mechanical
4.4(
28
)

Serving Key Largo, FL and surrounding areas

In business since 2004

Emergency services offered

Credit card accepted

"We've had two visits by Core Mechanical.
One for diagnosis and customer approved temporary repair to allow time to acquire a replacement unit.
Second for replacement of faulty a/c unit.
Both occasions the service tech telephoned with expected arrival, and an updated weather delay.
Services performed quickly and with no difficulties.
Costs were as quoted.
We were happy to provide a gratuity beyond the quoted price.
We would not hesitate to recommend Core Mechanical to anyone needing their services.
"
Additional Photos
Recommended by87%of homeowners
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Avatar for Centry Air Designs
Centry Air Designs
4.9(
14
)

Serving Key Largo, FL and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"Robert and his team showed up at the time we specified and finished the work ahead of schedule. His team was courteous, clean, and professional."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Recommended by100%of homeowners
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Avatar for Miami Electric & Air Conditioning Corp
Miami Electric & Air Conditioning Corp
5.0(
6
)

Serving Key Largo, FL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Carlos is amazing trusted and reliable đź‘Ź we replace our old electrical panel and the experience was great punctuality, smooth service and very good price. Totally recommend this company"
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Heating and Air Conditioning questions, answered by experts

If your whole house is cold that’s one thing, but what if you only have a few rooms that are cold? First, you need to determine why this may be happening. A good place to start is to investigate the potential causes listed in this article—heat transfer, airflow, thermostat problems, humidity, and insulation. Once you’ve narrowed down the issue, you’d apply the same principles to the cold rooms as you would to the entire home.

No, you should not attempt to replace an AC evaporator coil yourself. This is a complex task that must be performed by a licensed HVAC technician. The process involves handling hazardous and flammable refrigerants, which poses significant safety risks. Attempting a DIY replacement can also cause further damage to your HVAC system and will likely void its warranty. It is necessary to hire a local AC repair professional for this job.

Most HVAC service calls include diagnostic fees, which could include checking on a specific issue you’re experiencing or running through a routine inspection checklist. If you called for a particular problem, the service call will also include an estimate to fix the issue, including materials and labor. Depending on your HVAC technician and the service you requested, you might also get a general inspection of your system components to ensure everything is working as intended.

Most HVAC companies recommend against setting your AC below 70 as it could freeze up the system and cause more problems. Regardless of how hot it is outside, there is generally a 20 degree difference between the outside and inside temperatures, so even if it’s 100 degrees outside, your AC will likely not be able to cool your home to 70 degrees.

Yes. Your air supply should be balanced. The return and supply ducts need to maintain that balance, and this only occurs because an equal amount of air should be entering and leaving your HVAC system. Changes in pressure, extreme weather, and blocking vents with furniture or your stuff can make the air supply unbalanced and cause your home to get too cold or hot.

The Key Largo, 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.

See all articles