If you're replacing an air conditioner in Florida, a handful of state and federal rules decide what can be installed, who can install it and what paperwork the job needs. Several of those rules changed in 2025 and 2026, so a lot of what's online is out of date. This guide covers what Florida homeowners need to know as of October 2026.
The Short Version
- You need a permit to replace an AC. Florida's building code requires one for new or replacement equipment. Minor repairs, like replacing a capacitor or fan motor, don't need one.
- Hire a licensed contractor. In Florida, AC installation and most repair work has to be done by a contractor with a state air conditioning or mechanical license.
- New systems must meet federal efficiency minimums. For most home-size split systems in Florida, that's 14.3 SEER2, about 15 SEER on the old scale.
- R-410A systems can still be installed and repaired. A 2026 EPA rule removed the deadline that would have stopped installations of R-410A systems built from older parts. New equipment uses R-32 or R-454B.
- R-22 is gone. It hasn't been made or imported in the U.S. since 2020, so repairs that need it are expensive.
- The federal tax credit has ended. The 25C credit doesn't apply to systems installed after December 31, 2025.
Do You Need a Permit to Replace an AC in Florida?
Yes. The Florida Building Code requires a permit to install or replace air conditioning equipment, whether it's the outdoor condenser, the indoor air handler or the whole system. The code exempts minor work, like replacing a part that doesn't change the equipment's approval or make it unsafe. That's why a technician can replace a capacitor, contactor or fan motor without a permit, while a system change-out needs one.
Your contractor applies to the building department that covers your address. That might be your city, since West Palm Beach, Boca Raton, Port St. Lucie and Royal Palm Beach all run their own building departments, or the county if you're in an unincorporated area. In Vero Beach, A/C permits go through the Indian River County Building Division. The application often includes an AHRI certificate showing the indoor and outdoor units are a matched, rated system, along with details on how the outdoor unit will be anchored. An inspector checks the work after installation.
Why the Permit Matters
- Inspections catch problems. Inspectors look at things like electrical connections, the disconnect, condensate drainage and how the equipment is secured.
- Hurricane safety. Outdoor units must be anchored to resist high winds under the Florida Building Code.
- Selling or insuring your home. Unpermitted work can show up in a permit search when you sell, and it can complicate insurance questions after a claim.
Notice of Commencement
Florida's construction lien law generally requires a recorded Notice of Commencement for improvements over $5,000. There's a specific exception for AC work: a direct contract to repair or replace an existing heating or air conditioning system doesn't need one if the contract is under $15,000 (section 713.135, Florida Statutes). A bigger job, like a system replacement plus new ductwork, may cross that line, and your contractor should tell you if it does.
Minimum Efficiency Rules (SEER2)
Since January 1, 2023, the U.S. Department of Energy has set regional efficiency minimums for central air conditioners and heat pumps, and Florida is in the Southeast region. Efficiency is now measured with a tougher test called SEER2, so the same system gets a lower SEER2 number than its old SEER rating. These are the minimums for new systems installed in Florida:
| System type | Minimum rating | About the same as (old scale) |
|---|---|---|
| Split-system AC under 45,000 BTU/h (3.5 tons and smaller) | 14.3 SEER2 | 15 SEER |
| Split-system AC, 45,000 BTU/h and larger | 13.8 SEER2 | 14.5 SEER |
| Split-system heat pump | 14.3 SEER2 and 7.5 HSPF2 | 15 SEER and 8.8 HSPF |
| Packaged AC (all-in-one unit) | 13.4 SEER2 | 14 SEER |
| Packaged heat pump | 13.4 SEER2 and 6.7 HSPF2 | 14 SEER and 8 HSPF |
These are floors, not recommendations. Florida systems run most of the year, so a higher-efficiency system often pays for itself faster here than in cooler states. Two-stage and variable-speed (inverter) systems also remove more humidity, which matters as much as temperature in a Florida home. When you compare quotes, ask for the AHRI certificate number. It shows the certified rating for the exact indoor and outdoor combination being installed.
Refrigerant Rules: R-22, R-410A, R-32 and R-454B
R-22 (Freon)
R-22 hasn't been produced or imported in the United States since January 1, 2020. You can keep running an R-22 system, and technicians can still service it with recovered or reclaimed refrigerant, but supply is limited and the price is high. If an R-22 system has a major leak or a failed compressor, replacing the system is usually the better use of your money.
R-410A
Under the federal AIM Act, the EPA is phasing down HFC refrigerants like R-410A. Since January 1, 2025, new home and light commercial AC and heat pump systems have to be built with a refrigerant whose global warming potential is under 700. The original rule also set a January 1, 2026 deadline to stop installing split systems made with older R-410A components. In 2026, the EPA finalized a rule that removed that installation deadline, so R-410A systems built from components made or imported before 2025 can still be installed while supplies last.
If you already have an R-410A system, nothing changes. You can keep using it, and technicians can still repair and recharge it. As production keeps stepping down, R-410A may cost more over time.
R-32 and R-454B
Most new systems use R-32 or R-454B. Daikin, for example, uses R-32. Both are classified A2L, which means mildly flammable, so the equipment includes added safety features and installers follow updated safety standards. Refrigerants can't be mixed, so a new outdoor unit generally needs an indoor coil designed for the same refrigerant. That's one reason most replacements today include both the indoor and outdoor units.
Who Can Handle Refrigerant
Section 608 of the federal Clean Air Act requires technicians who work with refrigerant to be EPA certified, and it's illegal to knowingly vent refrigerant into the air. When an old system is removed, the refrigerant has to be recovered.
Contractor Licensing in Florida
In Florida, AC installation and most repair work has to be done by a contractor with a state air conditioning or mechanical license under Chapter 489, Florida Statutes. Before you sign anything, look up the license on the Department of Business and Professional Regulation's site, myfloridalicense.com, make sure it's active, and ask for proof of insurance.
Swift Air Conditioning is a licensed Florida HVAC contractor (license CAC1820211). On every AC replacement we do, we pull the permit and schedule the final inspection.
Federal Tax Credits and Rebates
The federal Energy Efficient Home Improvement Credit (section 25C) used to cover 30% of the cost of a qualifying central AC or heat pump, up to set limits. The One Big Beautiful Bill Act ended the credit for equipment placed in service after December 31, 2025, so systems installed in 2026 don't qualify. If you installed a qualifying system in 2025, ask a tax professional whether you can still claim it.
Utility and manufacturer rebates change often. Ask your electric utility whether it has a current AC rebate, and ask your contractor about manufacturer promotions and financing.
HOA, Condo and Rental Rules
HOAs and Condo Associations
Your HOA or condo association can set rules for where outdoor units go, screening, roof access and when contractors can work. Many condos ask for the contractor's license and insurance before work starts. Check the rules before you schedule, especially in a high-rise, where equipment may have to go up a freight elevator or onto the roof.
Renters and Landlords
Florida's landlord-tenant law (section 83.51, Florida Statutes) lists things like heat, running water and hot water, but it doesn't specifically mention air conditioning. Whether a landlord has to fix the AC usually depends on the lease and local housing codes. Renters should check the lease first. Landlords can avoid a lot of emergency calls with a maintenance plan.
Hurricane and Flood Rules for Outdoor Units
The Florida Building Code requires outdoor AC equipment to be secured against high winds, which is why permit applications ask how the condenser will be anchored. In flood zones, local rules may also require a replacement outdoor unit to sit at or above a set elevation. A good contractor checks these requirements for your address before quoting the job.
Checklist Before You Replace Your AC
- Check the license: Look up the contractor at myfloridalicense.com and ask for proof of insurance.
- Ask for a load calculation: Sizing the system with a proper load calculation (often called a Manual J) beats matching the old tonnage, especially if you've added insulation, new windows or a room.
- Get the AHRI certificate: Confirm the matched system meets or beats 14.3 SEER2, or 13.8 SEER2 for larger split systems.
- Confirm the permit: The quote should say who pulls the permit and that the price includes the final inspection.
- Ask about refrigerant: New systems use R-32 or R-454B, and the indoor coil should be matched to the new outdoor unit.
- Check your HOA rules: Get any approvals you need before installation day.
- Register the warranty: Many manufacturers require online registration within 60 to 90 days to get the full parts warranty.
Frequently Asked Questions
Is it illegal to install an R-410A air conditioner in Florida in 2026?
No. A 2026 EPA rule removed the January 1, 2026 installation deadline for R-410A split systems built from components made before 2025, so those systems can still be installed while supplies last. Existing R-410A systems can also still be repaired and recharged. New equipment made today uses R-32 or R-454B.
What SEER rating is required in Florida?
Most home-size split-system air conditioners (under 45,000 BTU/h) must be rated at least 14.3 SEER2, about 15 SEER. Larger split systems need at least 13.8 SEER2, and split heat pumps need 14.3 SEER2 and 7.5 HSPF2.
Do I need a permit for AC repair in Florida?
Not for minor repairs, such as replacing a capacitor, contactor or fan motor. Replacing the condenser, the air handler or the whole system needs a permit. Some building departments also require permits for bigger component swaps, so ask your contractor.
Can I replace just my outdoor unit?
Only when the new outdoor unit is rated to work with your existing indoor coil and uses the same refrigerant. With new equipment moving to R-32 and R-454B, that's getting harder, and it isn't an option for R-22 systems. In most cases, replacing both parts gives you a matched system and a full warranty.
Is there a tax credit for a new AC in 2026?
Not at the federal level. The 25C credit ended for equipment placed in service after December 31, 2025. Check with your electric utility for current rebates, and ask your contractor about manufacturer promotions and financing.
Does my landlord have to fix my AC in Florida?
Florida's landlord-tenant statute doesn't specifically require air conditioning, so it depends on your lease and local housing codes. Many leases do make the landlord responsible for AC repairs, so start there, and check with your city or county if you're not sure.
Need Help With an AC Replacement?
Swift Air Conditioning has served South Florida since 2008, from Vero Beach to Fort Lauderdale. We're Daikin specialists, we handle the permit and inspection on every replacement, and we'll walk you through your options before you decide. Call us or book a free in-home estimate for AC installation and replacement, or schedule AC repair if your system just needs a fix.
This guide is general information, not legal or tax advice. Rules change, so confirm the details with your local building department or a tax professional.
