HomeCostGuideDuctless Mini-Split Cost
Written and reviewed by the HomeCostGuide editorial team
Quick answer
$3k–$6ksingle-zone, installed; multi-zone systems run higher
A single-zone ductless mini-split typically costs $2,500–$6,000 installed. Multi-zone systems scale up from there — a 2-zone system generally runs $5,000–$8,000, and larger multi-zone systems covering 3-4 or more rooms can reach $8,800–$15,000 or beyond. Because mini-splits require no ductwork, they're often the more economical choice for cooling an addition, a converted attic or garage, or a home that never had central ducts installed, compared with adding ductwork for a central system. Installation typically takes 4-8 hours per zone, with additional zones added relatively efficiently to a single outdoor condenser.
How this differs from a full ac replacement
This page covers ductless mini-split systems specifically — a different equipment category from the central air systems covered in the parent AC replacement guide and the new central air installation page. Choose this page if you're cooling a single room, an addition, or a home without existing ductwork and want to avoid the cost of adding ducts.
What's typically included
Included at this scope
- Indoor air-handling unit(s) and outdoor condenser
- Refrigerant line set and electrical connection
- Wall or ceiling mount installation
- Additional zones on a shared outdoor unit
Not included (see the full guide)
- Central ducted systems (see the full AC replacement guide or the new central air installation page)
- Whole-house electrical panel upgrades
- Structural modifications beyond the mounting location
What affects the price
- Number of zones
- Each additional indoor unit adds cost, but less than a proportional amount once the outdoor condenser and initial electrical work are in place.
- SEER2 efficiency rating
- Higher-efficiency mini-split systems cost more upfront but lower operating costs, similar to central air systems.
- Line set length and routing
- A condenser placed far from the indoor unit, or requiring routing through multiple walls or floors, adds labor and material cost.
Frequently asked questions
Is a mini-split cheaper than central air?+
For cooling a single room, addition, or a home without existing ductwork, usually yes — a single-zone mini-split avoids the cost of adding ductwork entirely. For cooling an entire multi-room home, a multi-zone mini-split system can approach or exceed the cost of central air with existing ducts.
How many zones do I need?+
One zone per room or open area you want to cool independently is typical. Many homeowners use mini-splits for problem areas — a converted garage, a room addition, or an upper floor that runs hot — rather than the whole home.
Full guide
Cost ranges on this page are a narrower cut of our full AC Replacement Cost guide, which covers labor share, regional adjustment, resale value, financing, and sourcing in full. See it for the complete breakdown this page’s figures are drawn from.