Cost guides › Ductless mini-split
United States
Mini-split installation cost
Installing ductless mini-splits in 3 rooms, with a separate single-zone system for each room, typically costs $9,950, with most quotes between $7,750 and $13,000. One multi-zone outdoor unit serving all rooms comes in around $4,950, and concealed ceiling-recessed units run about $18,600.
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Cost by region
| Location | Basic | Mid-range | Premium |
|---|---|---|---|
| District of Columbia | $5,300 | $11,100 | $20,000 |
| Illinois | $5,300 | $11,100 | $19,900 |
| Alaska | $5,250 | $10,900 | $19,900 |
| Massachusetts | $5,200 | $10,900 | $19,800 |
| Washington | $5,250 | $10,900 | $19,800 |
| Connecticut | $5,200 | $10,800 | $19,600 |
| Minnesota | $5,200 | $10,800 | $19,600 |
| New Jersey | $5,150 | $10,700 | $19,600 |
| New York | $5,150 | $10,700 | $19,500 |
| California | $5,150 | $10,600 | $19,400 |
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| Hawaii | $5,150 | $10,600 | $19,700 |
| New Hampshire | $5,100 | $10,500 | $19,200 |
| North Dakota | $5,100 | $10,500 | $19,100 |
| Oregon | $5,150 | $10,500 | $19,300 |
| Maryland | $5,100 | $10,400 | $19,100 |
| Rhode Island | $5,050 | $10,400 | $19,000 |
| Maine | $5,050 | $10,200 | $18,800 |
| Wisconsin | $5,000 | $10,200 | $18,800 |
| Colorado | $5,000 | $10,100 | $18,800 |
| Michigan | $5,000 | $10,100 | $18,800 |
| Montana | $5,000 | $10,100 | $18,800 |
| Ohio | $4,950 | $10,100 | $18,700 |
| Pennsylvania | $5,000 | $10,100 | $18,700 |
| Delaware | $4,950 | $10,000 | $18,600 |
| Indiana | $4,950 | $10,000 | $18,600 |
| Missouri | $4,950 | $10,000 | $18,600 |
| Nevada | $5,000 | $10,000 | $18,600 |
| Vermont | $4,950 | $10,000 | $18,700 |
| Iowa | $4,950 | $9,950 | $18,500 |
| Kansas | $4,950 | $9,950 | $18,400 |
| Arizona | $4,900 | $9,900 | $18,400 |
| Nebraska | $4,900 | $9,900 | $18,400 |
| South Dakota | $4,950 | $9,900 | $18,500 |
| Virginia | $4,950 | $9,900 | $18,500 |
| Kentucky | $4,900 | $9,850 | $18,300 |
| Louisiana | $4,900 | $9,850 | $18,300 |
| Utah | $4,900 | $9,850 | $18,400 |
| Wyoming | $4,950 | $9,850 | $18,300 |
| Idaho | $4,900 | $9,750 | $18,200 |
| North Carolina | $4,900 | $9,750 | $18,200 |
| Oklahoma | $4,900 | $9,750 | $18,300 |
| Texas | $4,900 | $9,750 | $18,300 |
| Florida | $4,850 | $9,700 | $18,200 |
| Georgia | $4,850 | $9,700 | $18,300 |
| South Carolina | $4,900 | $9,700 | $18,200 |
| Tennessee | $4,900 | $9,700 | $18,200 |
| New Mexico | $4,800 | $9,500 | $18,000 |
| West Virginia | $4,800 | $9,500 | $18,000 |
| Mississippi | $4,800 | $9,450 | $17,700 |
| Alabama | $4,750 | $9,350 | $17,800 |
| Arkansas | $4,750 | $9,250 | $17,600 |
What's included
Mid-range
- One single-zone ductless heat pump per room, about 12,000 BTU (1 ton), with its own outdoor unit
- Wall-mounted indoor head, core hole through the wall, vacuum and startup per room
- Pre-insulated copper line set, about 16 ft per unit
- Condensate drain line for each indoor unit
- Dedicated 240 V circuit with breaker and wiring in conduit for each outdoor unit
- Outdoor unit mounting and connection
- Cooling and heating from the same equipment
What affects the cost
Single-zone vs. multi-zone
Separate single-zone systems let each room run independently and a fault takes out one room, not the whole house. A multi-zone system uses one outdoor unit for several heads and usually costs less, but all rooms depend on that one compressor.
Capacity and climate
Most bedrooms and small living rooms need 9,000–12,000 BTU; large or sunny rooms need more. In cold climates a cold-climate model that keeps heating in sub-zero weather costs more but can replace a furnace for much of the winter.
Line set length and wall routing
The estimate assumes each indoor unit sits within about 16 ft of its outdoor unit on an outside wall. Interior rooms, long runs through attics or closets, and line-hide covers on the facade add labor and material.
Condensate and mounting
Where the drain can't run by gravity, a condensate pump is needed. Roof, wall-bracket or stand mounting for the outdoor units beyond a standard pad or bracket is extra.
Electrical capacity
Each outdoor unit needs its own 240 V breaker. An older 100 A panel with no free spaces may need a subpanel or a service upgrade, which is not in this estimate.
Indoor unit style
Wall-mounted heads are cheapest. Ceiling cassettes, floor consoles and concealed ducted units look cleaner but cost more and often need drywall work to hide them.
How to save
- Put one head in the main living area and use a multi-zone system only where rooms are close together.
- Place indoor units on exterior walls near the outdoor unit to keep line sets short.
- Size each unit to the room rather than oversizing; oversized units cost more and short-cycle.
- Ask your utility about heat pump rebates before choosing a model, since some programs require specific efficiency levels.
Grants, tax and rules
Federal tax credit ended
The federal 25C credit, which covered qualifying heat pumps, does not apply to property placed in service after 31 Dec 2025 (IRS).
State and utility rebates
Some states run IRA home energy rebate programs (HEAR/HOMES), and availability varies by state. Utilities often offer rebates for heat pumps; the DSIRE database lists state and utility incentives.
Permits and licensing
New electrical circuits usually need a local permit, and the electrical work must be done by a licensed electrician where local law requires it. Our figures are before sales tax, which varies by state.
Frequently asked questions
How much does a ductless mini-split cost for three rooms?
With a separate single-zone system in each of 3 rooms, expect about $9,950 installed. A single multi-zone outdoor unit for the same rooms costs around $4,950.
Do mini-splits heat as well as cool?
Yes. They are heat pumps, so the same units heat in winter and cool in summer. Heating output drops in very cold weather unless you choose a cold-climate model.
What size mini-split do I need for a bedroom?
A typical 150–250 sq ft bedroom is usually covered by a 9,000 or 12,000 BTU unit. Ceiling height, insulation, windows and sun exposure all matter, so ask the installer for a room-by-room load calculation.
Is a mini-split cheaper than central air?
In a home without ductwork, mini-splits are usually cheaper than adding ducts for central air. If the house already has good ducts, replacing a central system can cost less than heads in every room.
Do I need a permit to install a mini-split?
Usually yes, because each outdoor unit needs a new dedicated electrical circuit. Your installer or electrician normally pulls the permit.
How long does installation take?
A crew typically installs one to two single-zone systems per day, so three rooms take about two days, including vacuum testing and startup.
How this estimate is calculated
Work hours: 33.3 · Labour: $3,211 · Materials: $6,753
Sources: BLS Occupational Employment and Wage Statistics; Regione Toscana, Prezzario dei Lavori 2026 (CC BY 4.0); ECB exchange rates.