Cost engine
How much does mini split installation cost in St. Augustine, FL?
St. Augustine pricing for mini split installation, adjusted for local labor and material costs, plus the permit fees you should budget.
Verified August 2026
Mini Split Installation cost in St. Augustine
$2,400 – $12,500
Most St. Augustine homeowners pay around $4,800 for mini split installation, or $2,000–$5,000 per indoor head. Budget another $90–$300 for permit fees.
Full cost breakdown
| Budget scope | $2,400 |
|---|---|
| Typical project | $4,800 |
| Premium / complex | $12,500 |
| per indoor head | $2,000 – $5,000 |
| Permit fees | $90 – $300 |
| Local premium | 0% vs national |
| Timeline | 1 day per head, 1-3 weeks including permitting |
What makes the number move
- Number of indoor heads and total BTU
- SEER2 rating of the system
- Line set length and routing
- New electrical circuit and disconnect
- Condensate drainage or pump
How to pay less
- • Get three written bids — spread between local bids on this project is routinely 25% or more.
- • Schedule in the off-season; St. Augustine contractors price peak demand higher.
- • Confirm the permit fee is itemized rather than marked up inside the labor line.
- • Verify the license at DBPR before paying a deposit; unlicensed work voids most claims.
Nearby city pricing
Frequently asked questions
What size mini split do I need for a Florida garage?
An uninsulated Florida garage typically needs 30 to 40 BTU per square foot because of the heat load through the door and roof — roughly a 12,000 BTU head for a single-car garage.
Sources
Sources & verification
Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.