The total cost of purchasing and professionally installing a multi-zone mini-split system typically ranges from six thousand to fifteen thousand dollars or more, depending heavily on the number of indoor air handlers, total BTU capacity, brand tier, and home layout complexity. A dual-zone configuration usually starts around six thousand dollars, while larger three, four, or five-zone systems scaling across an entire house can easily reach twelve to eighteen thousand dollars. This comprehensive price includes the outdoor compressor condenser, multiple indoor heads, line-set extensions, branch boxes, electrical disconnects, municipal permits, and certified contractor labor.
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