Ductless Mini-Splits: Complete Buying Guide for 2026
By Top HVAC Services Editorial Team · Mar 22, 2026 · 13 min read
Quick Answer: Mini-splits are the fastest-growing HVAC segment in 2026. Here is what you need to know about cost, sizing, and the best brands for your home.
Ductless mini-splits installs grew 22% year-over-year in 2025 and the trend continues. They make sense for additions, garages, basements, room-by-room conversions, and any home without ductwork.
Cost in 2026
| Configuration | Installed cost |
|---|---|
| Single-zone (12k BTU) | $3,500-$5,500 |
| Single-zone (24k BTU) | $4,500-$6,500 |
| Multi-zone, 3 heads | $8,500-$12,500 |
| Multi-zone, 5 heads | $13,500-$18,500 |
Best brands
- Mitsubishi Electric — best in cold climates (Hyper-Heat down to -13°F)
- Daikin — great efficiency, good warranty
- Fujitsu — quietest indoor heads
- LG — best WiFi/smart features
Sizing rule of thumb
- Bedroom (200 sq ft): 9k BTU
- Living room (400 sq ft): 18k BTU
- Open-plan main floor (800 sq ft): 24-30k BTU
- Whole house (2000 sq ft, well-insulated): 36k+ BTU multi-zone
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