Jacksonville, FL
Replacing an air conditioner in Jacksonville, sized to the house
Change-outs sized from a load calculation, not the old unit's label, with the permit pulled, the old refrigerant recovered and the JEA rebate filed when the system qualifies.
Quick answer
How much does it cost to replace an AC in Jacksonville, FL?
Published 2026 figures put a full AC system replacement in Jacksonville at about $5,800 to $15,000 installed, with most 1,500 to 2,500 sq ft homes between $9,000 and $13,000 including permit and disposal. A qualifying ENERGY STAR system also earns JEA's $200 rebate.
Overview
The same size is often the wrong size
The easiest replacement is to read the tonnage off the old condenser and order the same thing. It's also how a lot of Jacksonville homes end up with systems that cool fast, shut off, and leave the house damp. Windows, insulation and roofs get upgraded over twenty years, and the original unit may have been oversized from day one.
We run a Manual J load calculation on every replacement quote. It often lands a half ton smaller than the old unit, and a correctly sized system running longer cycles pulls more humidity out of the air. The indoor coil or air handler is usually replaced as a matched set so the system's rated efficiency, and the JEA rebate, actually hold.
Cost factors
What drives the price of an AC replacement
- TonnageSet by the load calculation, not the old unit's label.
- SEER2 and stagingHigher efficiency and variable speed raise the equipment price.
- Indoor unitA matched coil or air handler keeps the rating and rebate eligibility.
- Ducts and line setReturn upgrades or a new line set add cost when needed.
- Coastal optionCoated coils add about $500 to $1,000 near the ocean.
Jacksonville 2026 figures: $5,800 to $15,000 installed, most homes $9,000 to $13,000, before JEA's $200 rebate. The federal 25C credit ended December 31, 2025.
Options
Repair it or replace it
| Situation | Usually repair | Usually replace |
|---|---|---|
| System age | Under about 10 years | 15 years or more |
| Failure | Capacitor, contactor, fan motor, drain | Compressor or coil on an older unit |
| Refrigerant | Current refrigerant, leak fixable | Repeated leaks or a corroded coastal coil |
| Comfort | House holds temperature and humidity | Always humid, hot rooms, short cycling |
| Running cost | Bills steady | Bills climbing with the same use |
We price both paths on major repairs so the decision is yours, with numbers in front of you.
What is included
Every replacement includes
- Manual J load calculation
- Matched outdoor and indoor equipment
- Old refrigerant recovered and equipment hauled away
- Line set flushed or replaced, brazed under nitrogen
- Pressure test and deep vacuum
- Charge set by superheat or subcooling
- Thermostat set up for the new system
- Jacksonville permit, inspection and JEA rebate filing
What we fix
Same size change-out
When the load calculation confirms the old tonnage was right and the ducts are in good shape, a straight change-out is the simplest job. We recover the old refrigerant, replace the outdoor unit and matched indoor coil or air handler, flush or replace the line set, and set the charge by superheat or subcooling rather than by guess. Most of these are completed in a day, and the house is cooling again by late afternoon. You get the startup readings in writing for your records.
Upsizing or downsizing after a load calculation
If the numbers say the old unit was too big, we'll show you why before recommending a smaller one. Downsizing is common after window or insulation upgrades and makes a noticeable difference to humidity. Upsizing is rarer and usually points to a duct or airflow problem that a bigger unit won't solve. Where the ducts can't carry the airflow a new system needs, we'll price the return or duct correction alongside the equipment so the new unit isn't choked by the same ducts.
Coastal grade condensers
Near the ocean, standard aluminum coils corrode years early. Coastal grade units carry anti-corrosive coil coatings and stainless hardware, and they add roughly $500 to $1,000 to the outdoor unit. For homes within a few miles of the beach that premium usually pays for itself in coil life. We'll also look at where the condenser sits, since shielding it from the prevailing ocean wind cuts the salt spray reaching the coil. A gentle freshwater rinse of the coil between visits helps too.
Brands we service and install
Trane, Carrier, Lennox, Rheem, Goodman, Daikin, Mitsubishi Electric, American Standard, Bryant, Ruud, Amana, Honeywell, York, Heil
Replacements near the beaches
At homes near Jacksonville Beach, Atlantic Beach and out toward Nocatee, the reason for a replacement is often a corroded outdoor coil rather than a worn compressor. Once salt has pitted the aluminum badly enough to leak, patching rarely holds and a coil or full system replacement follows. That's why we price a coastal grade unit alongside the standard one on every beach-side quote, and plan the new condenser's position so the house shields it from the ocean wind.
How the job runs
How a replacement runs
- 1
Home visit
Load calculation, duct and electrical check, and a look at the old system.
- 2
Written quote
Options with model numbers, SEER2 ratings and rebate eligibility.
- 3
Permit
We pull the Jacksonville permit.
- 4
Install day
Old system out, new system set, brazed, tested, evacuated and charged.
- 5
Startup and paperwork
Performance verified, inspection scheduled, JEA rebate filed.
FAQ
AC replacement questions
Should I replace my AC with the same size?
Only if the load calculation confirms it. Many older units here were oversized.
Do I need to replace the indoor unit too?
Usually yes, so the system is matched and keeps its rated efficiency and rebate eligibility.
How long does a replacement take?
Most are done in one day. Duct changes can add a second.
Is there a federal tax credit in 2026?
No. The Section 25C credit expired December 31, 2025. JEA's rebate still applies.
What SEER2 do I need for the JEA rebate?
At least 16 SEER2, ENERGY STAR certified, per the AHRI certificate.
Is coastal grade worth it?
Near the beach, usually yes. It adds about $500 to $1,000 and protects the coil.
Do you pull the permit?
Yes, on every replacement, and we schedule the inspection.
Related services
Other work on the same system
AC Installation
New systems for additions, new construction and older homes getting central air for the first time.
Learn moreDuctless Mini Split Installation
Single and multi-zone heads for bonus rooms, garages and homes with no room for ducts.
Learn moreDuctless Mini Split Repair
Error codes, dripping heads and weak cooling on mini split systems.
Learn moreEvaporator Coil Replacement
Leaking indoor coils replaced with a coil matched to the outdoor unit.
Learn moreReplace it once, sized right
Call any hour to book a visit. We'll run the load calculation and give you a written, itemized quote.