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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

48 neighbors recently requested a quote
Recommended by100%of homeowners
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ARI AIR MECHANICAL LLC
5.0(
3
)

Serving Key Largo, FL and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"Ariel has serviced and maintained my AC for awhile now and recently replaced my ancient metal ducts with new ducts and vents. He is the best! Reliable, honest, hard working, efficient, neat and well organized, exceptional work ethic, a master craftsman. He is a joy to work with and I highly, highly recommend him. You couldn't be in better hands when you work with him. Forget 5 stars ---- he is at least 10 stars!!!!"
4 Ton System
4 Ton System
Residential Installations
Residential Installations
Residential Installations

+6

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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 time3 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 👏 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

To make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

Excessive humidity in a room often manifests through visible signs like condensation on windows or walls, a musty or damp odor lingering in the air, peeling wallpaper or paint, and the presence of mold or mildew. Experiencing discomfort due to a consistently clammy or sticky feeling can also indicate high humidity levels.

High humidity is one of the most common reasons for air vents to sweat or produce condensation. When the cool, dry air from your HVAC unit meets warm and moist air in your home, it will cause condensation. Insulating your ductwork can help prevent this. If you live in a very humid region, a dehumidifier can also help.

It’s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won’t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.

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 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.

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