Full Service HVAC Provider in Marathon FL & Surrounding Keys including Key West

With South Florida’s tropical climate, a quality air conditioner and an outstanding air conditioning company are essential if Marathon residents want to be comfortable when the heat and humidity hit. Ellington Air Conditioning & Heat offers a broad range of HVAC services to homeowners in Marathon, FL, and all of the Middle and Lower Keys.

ellington ac logo

Middle and Lower Keys

10701 6th Avenue Gulf #1B
Marathon, FL 33050
United States (US)
Phone: (305) 307-5909

Comprehensive Air Conditioner Service in Marathon, FL

At Ellington, we’re not comfortable until you’re comfortable. We recognize that a host of factors affect your comfort, so we offer a wide range of services to homeowners in Marathon and the surrounding Keys:


Installation, repair, and service


Air purification and filtration


Home automation


Duct cleaning


Attic insulation


Air conditioning and heating

Expert Air Conditioning Repair in the Florida Keys

When you require air conditioning repair, you want fast action and top-notch service. Our certified technicians have the qualifications to fix equipment made by all companies. We quickly identify what’s wrong with your system, provide you with a clear explanation of the problem, and give you an accurate cost before we complete the repair. We offer 24/7 coverage for emergencies, so you don’t have to panic if your AC breaks down outside of normal business hours.

AC Repair Key West

Whether it’s a scheduled AC repair or a sudden system failure, our neighbors in Key West can rest assured that we’ll swiftly restore your air conditioner or heat pump to its proper working condition. We arrive promptly, carry replacement parts in our service vehicles, and have the experience you’re looking for in an air conditioning contractor. For AC repair in Key West, Ellington is the company you can trust.

Excellent Service, Lots of Options for Marathon, FL, and the Surrounding Keys

We install products from Trane and Mitsubishi. Our ductless systems, forced-air systems, and heat pumps offer energy-efficient, affordable solutions to the Florida heat, and we back all of our work with a 100-percent satisfaction guarantee.

Our customers in Marathon and throughout the Keys are our No. 1 priority. With Ellington, there aren’t any hidden surprises or unexpected fees, just friendly, courteous technicians performing high-quality work at reasonable prices.

Schedule Your Service

Please let us know what day and time works best for you! We do our best to accommodate your needs.

  • (1) Appointment dates and times are subject to availability.
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