Mini-split pricing is driven by the number of indoor zones, line-set routing, electrical work and equipment efficiency. A single-zone project can look very different from a whole-home multi-zone system.
What a mini-split installation costs
A single-zone ductless project may start in the lower thousands, while multi-zone whole-home systems can reach $10,000 to $15,000 or more. The exact number of indoor heads and length of refrigerant piping are major cost drivers.
Single-zone vs. multi-zone
Single-zone systems are simpler and usually less expensive. Multi-zone systems require more indoor units, condensate routing, wall penetrations and refrigerant line work.
Common mini-split repairs
Drain problems, sensors and control issues can remain modest. Fan motors, boards, refrigerant leaks and compressor failures can become expensive, especially on older multi-zone equipment.
Quote details to compare
Confirm every indoor unit model, the outdoor unit model, electrical scope, line-hide materials, condensate routing, mounting hardware, permits and warranty.
Estimate your cost
Use the calculator below for a state-adjusted planning range. Your contractor still needs to diagnose, size or inspect the actual system before giving a firm quote.
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