AC Replacement Cost in South Florida (2026)
Quick Answer: In 2026, replacing a central air conditioner in South Florida typically costs about $5,950–$12,650 installed in Miami-area cities such as Miami, Hialeah, Hollywood, Pembroke Pines and Miramar, according to Costadia's 2026 Florida data. System size (tons), efficiency (SEER2), ductwork condition and access move the price within that range.
Our pricing: most complete installations we quote range from $5,999 to $12,999, depending on system size, efficiency and ductwork condition. Every job gets a free in-home estimate and a written flat-rate quote.
How much does a new AC unit cost in Florida?
Costadia's 2026 data puts central AC installation across Florida at $5,700–$13,400, with Miami, Hialeah, Hollywood, Pembroke Pines, Miramar, Miami Gardens and Plantation each listed at $5,950–$12,650. Costadia says most Florida cities require a permit, which typically adds about $225 and is included in those ranges.
| Home size | Cost range (installed) |
|---|---|
| 2–3 ton (small home) | $5,350–$8,400 |
| 3.5–4 ton (mid-size home) | $7,350–$11,450 |
| 5 ton (large home) | $9,400–$16,550 |
Source: Costadia.
How much does it cost to replace an AC unit by size (tons)?
National 2026 HomeGuide figures for basic installation, not including ductwork changes:
| Tonnage | Unit only | Installed |
|---|---|---|
| 2 tons | $2,500–$3,800 | $5,000–$6,800 |
| 2.5 tons | $2,900–$4,200 | $5,400–$7,200 |
| 3 tons | $3,300–$4,800 | $5,800–$7,800 |
| 3.5 tons | $3,700–$5,300 | $6,200–$8,300 |
| 4 tons | $4,000–$5,800 | $6,500–$8,800 |
| 5 tons | $4,500–$6,500 | $7,000–$9,500+ |
HomeGuide's overall ranges: standard systems $5,000–$8,300, mid-range $8,300–$12,500, high-efficiency variable-speed $12,500–$14,000+.
How much is a new AC unit in Miami?
Modernize estimates $4,500–$9,000 (about $7,000 average) for single-story Miami homes, plus roughly $2,000–$3,000 for two-story homes, with labor about $1,000–$3,000. Costadia's Miami range is $5,950–$12,650. Sources define "replacement" differently (equipment tier, ductwork, permits, electrical), so compare written quotes line by line.
What adds to the cost?
- Ductwork: sealing/repairs $300–$1,500; replacement $1,400–$5,600+ (HomeGuide).
- Permits: $100–$250 for replacement; $250–$1,500 for new installs with ductwork (HomeGuide). Costadia cites about $225 typical in Florida.
- Efficiency: each step up adds roughly $350–$1,500 (Angi).
- Two-story homes / difficult access: +$2,000–$3,000 in Miami (Modernize). Tight closets, rooftop or condo access add labor.
- Season: HomeGuide notes prices run higher in peak summer (May–August).
Should I repair or replace my AC unit?
HomeGuide suggests considering replacement when the system is more than 10–12 years old, a repair would cost at least 50% of a new system, it uses older refrigerant, bills keep rising, or breakdowns are frequent. Typical repairs cost $150–$650 (HomeGuide). We quote both options before you decide.
FAQ
How much does it cost to replace an AC unit in Florida?
About $5,700–$13,400 installed in 2026 according to Costadia's statewide data, and about $5,950–$12,650 in Miami-area cities. Size, efficiency and ductwork drive the final price.
How much does a new AC unit cost in Florida for a 1,500 sq ft home?
HomeGuide's national table puts a 1,500 sq ft home (about 2.5–3 tons) at $6,000–$8,500 installed, before ductwork changes. Florida's heat and humidity can change the size you need, so get a load calculation.
How long does an AC unit last in Florida?
HomeGuide says new AC systems last 15–20 years on average. In South Florida, year-round cooling and coastal salt air add wear, which makes regular maintenance more important.
Do you need a permit to replace an air conditioner in Florida?
Yes. Most Florida jurisdictions require a permit (Costadia notes about $225 typical). A licensed contractor (we're CAC1824559) pulls the permit and schedules the inspection.
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