4-Zone Mini Split Installation Cost
No verified complete 4-zone system exists in our dataset yet, and published guides usually fold 4-zone into the 4-5 zone band between the 3-zone range ($6,500-$11,000) and the 5-zone range ($10,000-$15,000+). Treat any single-number 4-zone quote with suspicion and price the equipment yourself from the multi-zone table. Verified equipment for this size runs $4,538 to $5,970. The gap between the equipment column and the installed range is labor, electrical, and permits.
Computed from our dataset
- 2 system(s) from our verified dataset appear on this page.
- Price range: $4,538 to $5,970 (verified 2026-11-04).
- Cheapest: MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18) at $4,538 (HVACDirect).
- Highest SEER2: MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18) at 23 SEER2.
- Best heating rating: MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18), rated to -13°F.
| System | Zones | BTU | Coverage | SEER2 | Heats to | Install | Price | |
|---|---|---|---|---|---|---|---|---|
| MRCOOL DIY 5th Gen 3-Zone 36k (9+9+18) DIY-MULTI5-36HP230D | 3 | 36,000 | Per-zone: 400 / 400 / 1,000 sq ft | 23 | -13°F | Pro / flare | $4,538 at HVACDirect | Check price at HVACDirect |
| MRCOOL DIY 5th Gen 5-Zone 48k (6+9+9+9+12) DIY-MULTI6-48HP-230 | 5 | 48,000 | Per-zone: 250-600 sq ft | 21.8 | — | Pro / flare | $5,970 at HVACDirect | Check price at HVACDirect |
Buying notes
- Labor is priced per zone because each zone is its own line set, vacuum, and electrical decision - that is why installed totals climb faster than equipment prices.
- A true-DIY single-zone (first row family in our dataset) collapses most of the labor line; multi-zone DIY claims need the line-set caveat in the DIY guide.