AC Repair in Key West
and the Lower Florida Keys

Common AC Problems We Fix in Key West

Island living is hard on air conditioners. Salt air, constant humidity and year-round use mean systems here fail in ways mainland systems often don't. The repairs we handle most:

• Salt-air corrosion. Salt eats through condenser coils, contactors and electrical connections faster here than almost anywhere in Florida.
• Refrigerant leaks. Corroded coils and fittings are a common source. We find the leak, repair it and recharge the system.
• Failed capacitors and motors. Heat and constant run time wear these parts out. They're one of the most common no-cool calls we get.
• Clogged drain lines. Year-round humidity means your system pulls a lot of water. A clogged line can shut the system off or cause water damage.
• Systems that won't turn on. From tripped breakers to failed boards, we track down the cause before replacing anything.

After-Hours & Emergency AC Repair

AC trouble doesn't keep business hours, and in Keys heat it can't wait. We always have a technician on call outside normal hours for residential customers. After-hours service is billed at a higher rate than a standard visit.

If storm surge or flooding reached your outdoor unit, leave it off until it's inspected. Saltwater does damage you can't see. Here's what to do with a flooded AC before turning it back on.

Repair or Replace?

Most AC systems in Key West last 8 to 12 years, shorter than on the mainland because of the salt and constant use. If your system is near that age and the repairs are adding up, replacement may save you more in the long run. Our technicians will give you an honest recommendation either way, never a sales pitch. Learn more about AC installation and replacement in Key West.

Not sure which way to go? Try our repair or replace tool to see how your system stacks up.

Brands We Repair

We repair almost all makes and models, including Trane, Carrier, Ruud, Rheem, Mitsubishi, Lennox and Goodman. The one exception is window units: we don't service those.

As part of Rocket Cooling, we're a Trane Comfort Specialist and a Mitsubishi Electric Diamond Contractor Elite, the highest tier of Mitsubishi Electric's contractor program. See the brands we install and service.

What Our Customers Say

"I called on a Saturday, and they answered right away and had someone out to fix our AC quickly."

"Thank you Carlos for coming out on 4th of July to get our AC back up and running!"

"They were here in under an hour… No upsell. Perfection."

"Called to have them look at my parents' AC and they were out there the same day that afternoon and fixed it."

Areas We Serve

Key West, Stock Island, Big Coppitt Key, Sugarloaf Key, Big Pine Key, Summerland Key and the surrounding Lower Keys, including Old Town, New Town, Casa Marina and Key Haven.

Pay Over Time

Flexible payment options are available through Affirm, subject to an eligibility check. See if you qualify.

Frequently Asked Questions: AC Repair in Key West

How much does AC repair cost in Key West?

Every repair is different. A service visit covers the first hour your technician is on site, and the repair itself is billed for time and materials from there. Your technician explains what's wrong and what the repair involves before doing the work.

Do you offer same-day AC repair?

In most cases, yes. When your AC is down in Key West heat, we work to get a technician to you the same day.

Do you offer emergency AC repair after hours?

Yes. We always have someone on call outside normal hours for residential customers.

Why does my AC corrode so fast in Key West?

Salt in the air settles on your outdoor unit and attacks the metal coils and electrical parts. Regular tune-ups and coil cleaning slow it down, and catching corrosion early keeps a small repair from becoming a replacement. Learn about AC tune-ups in Key West.

Is it worth repairing an older AC?

If your system is under about 8 years old and the repair is modest, repair usually makes sense. If it's 10 or more years old and needs a major part like a compressor, replacement is often the better investment. We'll lay out both options.

Do you repair window units?

No. We service central systems and ductless mini-splits, but not window units.

Schedule Your AC Repair

When you call Sub Zero, you're getting the same team Key West has trusted since 1989.

Schedule an Appointment   Prefer to text? (305) 294-9243

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