The cost of a ductless solution for your home can vary tremendously depending on the size of the system, the number of systems, the numbers of indoor heads, and the complexity of the install. The very nature of the ductless architecture means that it has a building block approach to solving the comfort and /or operating costs you may have in your home. When we talk about a building block approach to the solution you can use a simple one small outdoor unit with a matched wall unit to meet just a small room cooling need, through to a very large system for a whole home, with 5 indoor heads some of which are floor mounted, some of which are cut into the ceiling (Cassette), even a ducted unit for a couple of rooms and some of which are standard high wall units providing both a heating and cooling solution with integrated thermostats in each room, then the cost can vary significantly.
Not only will the cost depend on the amount of equipment purchased but also impact the cost of the install. Furthermore the structure of the house and its building material can also have an impact on the house. In some cases 2 separate systems may be more efficient and cost effective than one single system - again impacting the cost of the solution. For more information on the install of ductless please review the ductless install tab.
Please note all costs are approximates and will vary from contractor to contractor.
As an approximate guide to cost a very simple Air Conditioning only small system with a simple through the wall line-set install to a High Wall system would be around $3000. From there the cost can increase if the system is also going to perform heating as well (heat pump), if the size of the system increases, if the number of indoor heads to the outdoor unit increase (and type used on the inside), if the home needs more than one system, and how complex the install is based on the construction of the home and layout of rooms that need the ductless solution. For a multiple headed solution with different types of indoor heads installed in a old stone home the cost can be over $20,000, with cost possibilities between $3000 and up depending on the ductless solution appropriate to the comfort needs of your home.
To help offset the cost of ductless installs, and because they are seen as some of the most efficient heating and cooling solutions for the home there are multiple rebates available from utilities for the install of a ductless system.
Also many manufacturers offer rebates as well. The combined value can be over $1000.