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AC Installation & Replacement in Key West, FL

Citywide HVAC Services installs new central air conditioners, heat pumps and ductless systems throughout Key West, FL. We run a load calculation on your home, show you good-better-best options and complete most installations in a single day.

AC installation in Key West — 24/7
(855) 459-5498
  • Repair-first honesty: we only recommend replacement when it saves you money.
  • Flat, written pricing before any work starts — no hourly surprises.
  • Serving Key West and Marathon, Key Colony Beach & nearby

Signs you need AC installation in Key West

  • AC over 12–15 years old and needing frequent repairs
  • Repair quote is more than half the cost of a new system
  • R-22 refrigerant system that is expensive to recharge
  • Rooms that never get comfortable no matter the thermostat setting
  • Rising electric bills every summer
  • Adding square footage or a new addition

If any of these sound familiar, turn the system off and call (855) 459-5498. Running a failing unit can turn a small AC installation job into a much bigger one.

What to expect

  1. Book by phone. Same-day appointments for Key West; 24/7 for emergencies.
  2. Full diagnosis. We test the whole system, not just the obvious part.
  3. Written flat price. Approve it before we touch a tool.
  4. Done right. Repair completed, area cleaned, and we show you what changed.
Fast AC installation in Key West, FL. Residential and commercial. Every brand. Call (855) 459-5498 any time.

AC Installation & Replacement near you — Key West and surrounding areas

Our AC installation technicians serve Key West plus Marathon, Key Colony Beach, Layton, Islamorada, Everglades City, Marco Island, Florida City, Homestead. Looking for a different town? Browse every Florida location or the main AC Installation & Replacement page.

Key West customers on our AC installation

★★★★★

“Called three companies, Citywide was the only one that answered live and gave me a real arrival time. Fixed my heat pump that afternoon.”

— Ashley M., Key West, FL
★★★★★

“Fast, polite and fair. The price they quoted on the phone is exactly what I paid. Highly recommend for anyone in Key West.”

— Robert K., Key West, FL
★★★★★

“The heat went out during the cold snap and they came the same evening. Replaced the heat strips and we were warm again within the hour.”

— Dana W., Key West, FL

AC Installation & Replacement FAQ — Key West, FL

How long does AC installation take in Key West?

Most straight replacements are finished in one day. Ductwork changes or new line sets can add a day.

What size AC do I need for my Key West home?

We measure your home and run a Manual J load calculation instead of guessing — oversized units short cycle and leave Florida homes humid.

Do you offer financing on new AC systems?

Yes, financing options with approved credit are available on new system installations. Ask when you call (855) 459-5498.

Do you provide AC installation near Key West too?

Yes. Besides Key West, we cover Marathon, Key Colony Beach, Layton, Islamorada and every other city in Florida.

Other HVAC services in Key West

Learn more

Need AC installation in Key West today?

Call (855) 459-5498 — 24/7
☎ Call (855) 459-5498 — 24/7