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TRUSTED BY KEY BISCAYNE, FL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon426
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Key Biscayne, 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 Biscayne, 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 February 09, 2026

Find Heating and air conditioning pros in Key Biscayne

Avatar for HVAC Specialist Air Duct Cleaners
HVAC Specialist Air Duct Cleaners
4.6(
385
)
Air Ducts & Vents - Clean

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I already HVAC to install 2 machines, fix another ACs and I can strongly recommend. The guys are fast, honest and never disappoint. If you are looking for a reliable AC company, try HVAC, just like me, you will be satisfied ."
Hvac
Hvac
hvac
hvac
hvac

+76

Response time4 hrs
3 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Weathershield Air Conditioning
Weathershield Air Conditioning
5.0(
17
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"These folks are great!  The first couple of years that I had this central AC installed, the main HVAC unit would freeze up and flood the closet and adjacent areas.  
After paying another company for the same repair for three years, I finally ditched them and called Weathershield.  They came out, noticed that I had a bad thermostat, replace that, serviced the unit and I haven't had a problem since then. 
The folks are super polite, arrive on time and have had my AC purring now for over four years now.  Can't say enough.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time10 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Air Supply A/C Services & More, Inc.
Air Supply A/C Services & More, Inc.
4.7(
641
)
Central A/C - Service or RepairAir Ducts & Vents - CleanHeat Pump - Repair or Service+1 more

Serving Key Biscayne, FL and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Emergency services offered

"Probably, THE BEST HVAC service we’ve ever gotten. Thank you, Jose for your expertise and know-how. And the customer service with the front office was top-notch and pleasant!"
Certified Technicians
Air Supply Trucks
Air Supply Trucks
Compressor replacement, before/after
Air supply New installation

+10

Response time6 hrs
Response rate88%
13 neighbors recently requested a quote
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Avatar for Con-Mech, Inc.
Con-Mech, Inc.
5.0(
67
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+6 more

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Yudel and his team did an amazing job. If you are in the market for HVAC service, installation, repair or new equipment look no further."
Job Complete
New High Efficiency Condensing Unit
Part of the team...
10 Tons Burnt Compressor
New High Efficiency Air Handler Unit

+41

Response time10 hrs
3 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Skyline HVAC LLC
Skyline HVAC LLC
5.0(
11
)
Central A/C - InstallAir Ducts & Vents - CleanCentral A/C - Service or Repair+12 more

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2017

Free estimates

"Skyline HVAC did an excellent job installing my AC. The installer was professional, on time, and clearly knew what they were doing. They explained the process, worked efficiently, and made sure everything was installed cleanly and correctly. Before leaving, they double-checked that the system was running perfectly. My AC works great and I’m very happy with the service. I’d definitely recommend Skyline HVAC to anyone needing quality HVAC work."
7.5 ton replacement
7.5 ton replacement
9 neighbors recently requested a quote
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Avatar for Breeze Air Heating and cooling
Breeze Air Heating and cooling
4.8(
48
)
Central A/C - Service or Repair

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Jose responded quickly. He was willing to help my senior mom understand the issue with the HVAC. He also showed her how to work the thermostat. He took pictures for me and made sure the job was done right."
New install
New install
New install
New install
New install

+22

Response time30 mins
Response rate92%
1 neighbors recently requested a quote
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Avatar for Happy Ducts HVAC Solutions LLC
Happy Ducts HVAC Solutions LLC
5.0(
23
)
Air Ducts & Vents - Clean

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I cannot say enough good things about Happy Ducts HVAC solutions. I used them a few months back to clean the air ducts in my home and was beyond impressed. Since then I have hired them to do all of my restaurants as well. They are extremely professional, do an immaculate job and have upfront, honest pricing. I had about five other companies bid on my restaurants to clean the air ducts and Happy Ducts was the clear winner when it comes to price, reputation and service. There is no need to look any further. Hire these guys for all of your HVAC needs."
Gallery
10 neighbors recently requested a quote
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Avatar for COOL AIR USA INC.
COOL AIR USA INC.
4.8(
74
)
Central A/C - InstallCentral A/C - Service or RepairDucts & Vents - Install or Replace+3 more

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"Cool Air was very professional. They explained what they were doing and what we needed and the job was completely in a timely manner. I’m a realtor and recommended them to several of my clients. All of my clients were very happy with the services they received."
Cool Air USA
Cool Air USA
Cool Air USA
11 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for LOWE'S Air Duct Cleaning Inc. -- Unlimited Vents
LOWE'S Air Duct Cleaning Inc. -- Unlimited Vents
4.6(
159
)
Air Ducts & Vents - Clean

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"For DC/ Northern VA: Best price in the area. Very methodical, evaluated the ducts as he worked, very knowledgeable. Dryer duct cleaned as well. Showed up 2 hrs late, so ensure you have a full day for the job to be completed."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time9 hrs
Response rate98%
15 neighbors recently requested a quote
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Showing 1-10 of 508
Heating and Air Conditioning questions, answered by experts

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

When first installed, flex ducts shouldn’t cause airflow problems in your home. However, because flex ducts aren’t the sturdiest and require extra support, they lose their durability over time and begin to sag, which can inhibit airflow down the road. Also, if your flex ducts aren’t tight enough, your HVAC could work twice as hard for the same air pressure. If you’re worried about the airflow in your home, a rigid duct may be your best bet.

No. Your furnace does not run your air conditioner. Both units use the same system of ductwork to move conditioned air throughout your home, but you can have a furnace without having an air conditioner and vice versa. Furnaces are only for heating your home. You can buy a system that does both, however, like a split system or a heat pump (yes, heat pumps cool, too).

A new air conditioner capacitor will cost less than replacing the entire air conditioner system. While a capacitor itself will cost between $8 and $25, paying a professional to replace an AC capacitor will cost $180 on average. It’s not safe to replace an air conditioner capacitor on your own. 

No, you don’t need a ductless unit in every room. Ductless AC units don't work the way that window units do, where the air doesn't travel outside that room. The indoor air handlers all attach to the outdoor condenser. While the air doesn't travel the way that traditional ductwork would, the ductless AC units create zones so that one part of the home can be cooler than another. They can spread effectively enough that indoor units only need to be placed in main living areas.

The Key Biscayne, 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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