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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

Find Heating and air conditioning pros in Key Largo

Avatar for One Hour Air Conditioning & Heating of Miami
One Hour Air Conditioning & Heating of Miami
4.4(
13
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+3 more

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

31 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ARI AIR MECHANICAL LLC
ARI AIR MECHANICAL LLC
5.0(
4
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+3 more

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

5 neighbors recently requested a quote
Avatar for S.B.R.P.E CONTRACTORS, INC.
S.B.R.P.E CONTRACTORS, INC.
5.0(
7
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+20 more

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%
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 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
Avatar for Centry Air Designs
Centry Air Designs
4.9(
14
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+48 more

Serving Key Largo, FL and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"I was not sure what was wrong so I called these guys, described what I knew, and they said they would come look at it. They said there was an $85 minimum charge for an assessment but that it would be credited toward any kind of services and equipment that I needed. They showed up within 2 hours and even called me ahead of time to double check that I would be there. Once they arrived they checked several things before opening up the unit and then showed me where the electrical part of the system had melted, likely due to a power surge. So it had to be replaced, but they said they could replace the whole system (inside, outside and thermostat) that day. They even got a crane because the outdoor unit is on the roof of my condo unit. The techs were all quick, polite and respectful. They also helped provide photos and documentation should we need to submit a claim to the homeowners insurance company. I would highly recommend them and would use them again in a heartbeat. Big thanks to Alex Rodriguez and his team."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
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+8

Recommended by100%of homeowners
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Heating and Air Conditioning questions, answered by experts

The length of an AC cycle depends on the settings in your thermostat and the unit you have. Central AC doesn't constantly run at full blast the way that a window unit does. A cooling cycle in most homes is 15 to 20 minutes. Then, the unit stays off for seven to 10 minutes to circulate the cold air in the house before the cycle repeats. It should repeat two or three times per hour. A short cycle lasts less than 10 minutes and then turns off.

There are several AC unit problems to troubleshoot, but luckily you can identify them by keeping a close eye on your system. Look out for the following signs that your AC needs repair:

  • Unusual noises during operation

  • AC unit blows warm air

  • AC unit doesn’t come on or turn off with temperature changes

  • Strange odors come through the vents

  • AC unit cycles on and off rapidly

  • Indoor air is more humid or less comfortable than usual

  • AC unit keeps tripping your breaker

  • Fan in the outdoor compressor doesn’t operate when the AC is on

There are two main reasons your furnace and AC are turning on at the same time. The first could be that you’re confusing the furnace with the blower. The blower is located in the furnace and will turn on to distribute cool air from the air conditioner through the ductwork in the home. This is normal. If the actual furnace is turning on at the same time as the AC and hot and cool air are coming into the home, it could be a result of incorrect writing to a new thermostat or new systems.

Most AC repair technicians will take between two and six hours to carry out repairs, depending on the work needed and the accessibility of the unit. For example, recharging refrigerant lines should take one to two hours to service, while replacing a compressor, blower fan, or other major components can take five to eight hours. You can ask your AC repair technician how long they expect the job to take, but just in case, you should plan on being home and available for most of the day.

A blocked return air vent can cause your HVAC system to work much harder and, therefore, less efficiently. The result is higher utility bills and poorer air quality. A blocked return air vent can also cause unpleasant dust, dander, and odors to linger in your home’s air.

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.