Ductless Mini-Split Installation Cost by Zone Count
Ductless mini-split installation with wall-mounted heads, standard line-set routing under 30 ft.
Good / Better / Best
Good
$4,800 – $7,500
Single-zone 9k – 12k BTU (Fujitsu / Goodman)
10 yr parts / 5 yr compressor
- • Best for single room / ADU up to 500 sq ft
- • Simple 1-head install
- • 6–8 hour install
Plan 970 · ~$115/mo (58 mo)
Better
$8,500 – $13,000
Dual-zone 18k – 24k BTU (Mitsubishi MSY)
12 yr parts / 12 yr compressor
- • Covers 2 rooms independently
- • 22 SEER2 typical
- • Hyper-Heat available
Plan 970 · ~$199/mo (58 mo)
Best
$16,000 – $28,000
3-5 zone 30k – 48k BTU (Mitsubishi Diamond)
12 yr parts / 12 yr compressor
- • Whole-home ductless
- • Independent zone control
- • 22 SEER2+ efficiency
Plan 942 · ~$212/mo (115 mo)
What affects the price
- • Line-set cover material (paintable trim adds $180 – $360 per head)
- • Long line-set runs (over 30 ft)
- • Electrical sub-panel work
- • Wall-mount vs ceiling-cassette head style
Financing options
| Plan | APR | Term | Monthly on $10k |
|---|---|---|---|
| Synchrony Plan 925 | 0% APR | 24 months | $417/mo |
| Synchrony Plan 970 | 5.99% APR | 58 months | $199/mo |
| Synchrony Plan 942 | 7.99% APR | 115 months | $125/mo |
Financing subject to Synchrony credit approval. See financing for full terms.
Frequently asked questions
Is a mini-split cheaper than adding ductwork?
Usually yes for 1-3 zones. Above 3 zones, ducted heat-pump systems often become cheaper per BTU delivered.
How long does a single-zone install take?
6–8 hours. Most installs are same-day.
Do mini-splits qualify for rebates?
Yes — ENERGY STAR ductless heat pumps qualify for SCE rebates ($300 – $1,000 depending on efficiency).
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