Mini split installation cost
A single-zone ductless mini split costs $2,500 to $6,000 installed. Each extra indoor unit adds roughly $2,000 to $2,500, so a whole-home system with five zones runs $10,000 to $15,000.
Quick answer
$2,500 – $6,000single zone, installed
One-room mini splits cost $2,500 to $6,000 installed. A typical 1- to 2-ton system is $3,500 to $8,000, and whole-home systems with many zones reach $20,000+.
Cost by number of zones
| Zones | Installed |
|---|---|
| 1 zone (one room) | $2,500 – $6,000 |
| 2 zones | $4,500 – $8,000 |
| 3 zones | $6,500 – $11,000 |
| 5 zones (whole home) | $10,000 – $15,000 |
| 8 zones | $18,000 – $20,000+ |
Cost by size
| Size | Installed |
|---|---|
| 6,000 BTU (0.5 ton) | $2,500 – $3,500 |
| 9,000 BTU (0.75 ton) | $3,000 – $4,200 |
| 12,000 BTU (1 ton) | $3,500 – $5,000 |
| 18,000 BTU (1.5 tons) | $4,500 – $6,500 |
| 24,000 BTU (2 tons) | $6,000 – $8,000 |
| 30,000 BTU (2.5 tons) | $7,000 – $9,500 |
| 36,000 BTU (3 tons) | $8,000 – $11,000 |
| 42,000 BTU (3.5 tons) | $10,000 – $13,000 |
| 48,000 BTU (4 tons) | $12,000 – $15,000 |
Cost by indoor unit style
| Style | Installed |
|---|---|
| Wall-mounted | $2,500 – $5,000 |
| Floor-mounted | $3,000 – $5,000 |
| Ceiling cassette | $3,500 – $6,000 |
| Concealed ducted | $4,000 – $7,500 |
When a mini split makes sense
- Homes without ducts (radiators, baseboard, older houses)
- Additions, garages, finished basements and sunrooms
- Rooms that are always too hot or cold
- Replacing window units with a quiet, efficient system
Most mini splits are heat pumps, so they also heat. For unit prices by brand, see Ductless mini split cost: unit prices by brand; for several rooms, see Multi-zone mini split cost.
How to get a fair quote
- Get at least three written quotes that list the brand, model number, size (tons or BTU) and efficiency rating.
- Ask whether the price includes permits, removal of the old unit, refrigerant, a new thermostat and any duct or electrical work.
- Ask for a load calculation (Manual J) instead of matching the old unit's size by default.
- Compare labor warranties (1 to 10 years) as well as the manufacturer's parts warranty, and register the equipment.
- Schedule non-urgent work in spring or fall, when contractors are less busy and more willing to discount.
Frequently asked questions
How much does it cost to install a mini split?
About $2,500 to $6,000 for a single-zone system, including the outdoor unit, one indoor head and installation.
How much does a 12,000 BTU mini split cost installed?
About $3,500 to $5,000 for a 1-ton (12,000 BTU) single-zone system.
Can I install a mini split myself?
DIY-friendly kits with pre-charged line sets exist, but most systems need an EPA-certified technician to handle refrigerant, and DIY installs may void warranties.
Sources
Prices are national averages and typical ranges from published cost data. Your price depends on your home, region, equipment and contractor, so get several written quotes. Heat & Air Costs is not an HVAC contractor; read our disclaimer.