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TRUSTED BY MARATHON, FL HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon29
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Marathon - Updated Nov 2026

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 Marathon, 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 Marathon, 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
Hallmarc, Inc.
5.0(
5
)
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 Marathon, FL and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Amazing technical expertise and physical strength displayed by Mr. Hall who got the water heater to second floor by himself and safely installed my brand new unit. He's also maintained my AC for the last 7 years and recently replaced my thermostat. He is also knowledgeable and able to make electrical repairs and wiring. He is also an honest person who will advise you accordingly."
Water Heater Install
Insulation
Insulation
Recommended by100%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 Marathon, 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
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
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 Marathon, FL and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Excellent service, very fast response to my request for service, picked up laptop, diagnosed issues. Initially thought it was an OS update issue but the hard drive had failed along with other components (including 'CPU). Because other components were involved, a new solid state hard drive was put into a laptop with a working processor - same type CPU as in the failed unit. The laptop was repaired and returned in less than a week. This company picked up and dropped off the laptop (driving from Huntsville, AL (about 60-70 minutes)-- great service in this covid environment. I would recommend this company to my family./friends and will use again."
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

Many HVAC manufacturers provide warranties that encompass the cost of a new compressor, with durations ranging from 5 to 10 years, depending on the brand. These warranties cover critical components such as the compressor, condenser, connecting tubing, evaporator, and refrigerant charge. Moreover, they often include the necessary labor for replacement or repairs. Keep in mind that premium-brand compressors may offer lifetime warranty options. It's essential to note that these warranties rarely cover labor costs.

While it is possible to add Freon to your AC unit yourself, it is not recommended. In fact, the U.S. Environmental Protection Agency (EPA) prohibits the handling of Freon without a license. Freon is a dangerous gas that can cause irreversible damage to your AC or yourself if not installed correctly. It is worthwhile to hire a professional to add Freon to your AC.

Yes, you can run an attic fan with the AC on. In fact, you don’t have a choice with a passive attic fan. Plus, when an attic fan draws out hot air from the attic, it helps regulate the temperature of your whole home, so your AC doesn't have to work as hard.

Yes, you should turn off your AC if it’s leaking. Turning off the system prevents more condensation from leaking and reduces strain on the unit if a damaged internal component or lack of refrigerant is the cause. While this may temporarily stop the leak, water can continue to drip from a thawing coil even after the system is off. As soon as you notice a leak, turn off the unit and investigate the source or call a professional for an inspection.

Don’t run your AC with a wet filter. It can cause your AC to work too hard, which will run up your utility bill and cause extra wear and tear on the system. You could also spread moisture and mold throughout your house. Turn off the AC, remove the wet filter, and check for cracks or clogs. Fix the problem (with a pro’s help, if you need it), and put a dry filter in place before you turn the system back on.

The Marathon, 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.