# Mini Split Installation Cost: 2026 Pricing Breakdown

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Plain text: https://www.simplywise.com/blog/mini-split-installation-cost/llms.txt
Publisher: SimplyWise, Inc. (https://www.simplywise.com)
Published: September 25, 2026
Updated: October 27, 2026
Category: Project Cost Guides
Summary: Mini split installation cost by zone: systems by Btu, line sets by length, the federal SEER2 floor, and what installers actually earn. Free to try.

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## Mini Split Installation Cost: What Ductless Runs by Zone

Mini split installation cost is a head count problem. Zones, the line set run, and the hours, in published numbers.

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At a glance

1. AC Units For Less posted a complete 18,000 Btu system at $2,909 on September 14, 2026.
2. Across that line, 12,000 Btu ran $2,359 and 36,000 Btu ran $3,769.
3. Line sets for an 18K head posted at $239 for 16 feet, $510 for 35 feet, $599 for 50 feet.
4. Federal rule sets split system heat pumps at 14.3 SEER2 and 7.5 HSPF2, no regional lift.
5. Installer wages run $29.33 an hour median, payroll not a billing rate.

## Ductless or ducted, and why the line matters

Mini split installation cost prices a ductless system. Outdoor condenser, indoor heads, a line set per head, condensate, a circuit. Replacing central air on existing ductwork is a different job, priced in our ac installation cost guide (https://www.simplywise.com/blog/ac-installation-cost/).

## Mini split installation cost by zone size

AC Units For Less, read September 14, 2026. Each row is a complete MRCOOL DIY system: condenser, head, 25 foot line set, one box. The DIY line ships pre charged on a quick connect set for a homeowner to hang. Gear a crew evacuates and charges prices differently.

| Capacity | Model | Volts | Posted price |
| --- | --- | --- | --- |
| 12,000 Btu | DIY-12-HP-WM-115D25-O | 115 | $2,359 |
| 18,000 Btu | DIY-18-HP-WM-230D25-O | 230 | $2,909 |
| 24,000 Btu | DIY-24-HP-WM-230D25-O | 230 | $3,329 |
| 36,000 Btu | DIY-36-HP-WM-230D25-O | 230 | $3,769 |

Capacity does not price in a straight line. Going from 12,000 to 18,000 Btu adds $550, and the 12,000 runs on 115 volts. Going from 24,000 to 36,000 adds only $440 for twice the step.

These are fifth generation systems on R-454B. The superseded fourth generation R-410A line still turns up at other suppliers, and a clearance price on discontinued stock is not the market.

## Multi zone, and what nobody posted

The multi zone story is thinner, and we say so rather than fill it in. A fourth generation R-410A five zone condenser posted at $2,814, outdoor unit only, and no fifth generation multi zone price reached us. The two, three and four zone condensers returned no price, nor did the 9,000 Btu head.

## Turn the walk through into a signed quote

SimplyWise Cost Estimator turns a photo into an itemized, branded estimate in about 6 seconds. Every material and labor line stays editable. Pricing is $29.99/mo or $239.99/yr, about $20/mo on annual, with a 7-day free trial.

## Line set and line hide, the second biggest number

Every run past the included 25 feet needs its own set, and it has to match the generation. The fifth generation R-454B systems above take R-454B sets, sold by head size. For an 18K head the quarter by half inch set posted at three lengths. A 12K head takes a quarter by three eighths set instead, $502 for 35 feet, and a 24K or 36K head takes a three eighths by five eighths set, $271 for 16 feet.

| Length, 18K head, R-454B | Model | Posted price |
| --- | --- | --- |
| 16 feet | DIY16-1412-O | $239 |
| 35 feet | DIY35-1412C-O | $510 |
| 50 feet | DIY50-1412C-O | $599 |

Look at the steps. The 19 feet between 16 and 35 cost $271, and the 35 foot set adds the DIY Pro cable the 16 foot set lacks. The 15 feet between 35 and 50 cost $89. Same store, same head size, and still no price a foot.

A bracket for 9K to 18K condensers ran $89, a 12 foot cover kit $148.

## The federal floor is different on ductless

Title 10 of the Code of Federal Regulations, section 430.32, sets split system heat pumps at 14.3 SEER2 and 7.5 HSPF2.

That floor is national.

## Labor is a wage, not a billing rate

The federal wage survey for May 2025 covers 409,670 HVAC mechanics. Hourly median $29.33, 90th percentile $45.78.

That survey skips the self employed. These are wages an employer pays, with burden, vehicle, overhead and margin on top. Our hourly rate breakdown by trade (https://www.simplywise.com/blog/contractor-hourly-labor-rates-by-trade/) walks that gap.

## One 18,000 Btu zone, priced from stated inputs

One head, bracket, 12 feet of line hide, and a 35 foot run replacing the 25 foot set in the box rather than adding to it.

| Line | Basis | Amount |
| --- | --- | --- |
| 18,000 Btu system | posted 2026-09-14 | $2,909 |
| 35 foot line set | posted 2026-09-25 | $510 |
| Bracket and line hide | $89 plus $148 | $237 |
| Direct wage | 2 techs, 6 hours, $29.33 | $351.96 |
| Total | sum above | $4,007.96 |

That is not a bid. The circuit, disconnect, condensate and permit sit outside it, as does burden, overhead and margin.

## What we will not price, and why

- Two, three and four zone condensers. All returned no price.
- The electrical side. The pullout disconnects we checked are no longer stocked.
- Rebates and credits. None is a price, and nothing here is netted against one.
- Crew installed ductless. Every figure here is the DIY pre charged line.

## Build a mini split installation cost estimate in this order

1. Count the heads first Each head is its own run and its own condensate path.
2. Measure the real run, then buy the posted length Buy the next posted length up, never a rate a foot.
3. Quote the mounting and the line hide A bracket ran $89, twelve feet of cover $148.
4. Add the hours at your loaded rate The federal median wage of $29.33 is payroll, not what you charge.

## Keep reading

- AC Installation Cost (https://www.simplywise.com/blog/ac-installation-cost/)
- How to Estimate an HVAC Job (https://www.simplywise.com/blog/how-to-estimate-hvac-job/)
- HVAC Pricing Guide (https://www.simplywise.com/blog/hvac-contractor-pricing-guide/)

## Sources

### Supplier prices, read September 14, 2026

- Fifth generation systems at AC Units For Less, all in stock: 12,000 (https://www.acunitsforless.com/products/mrcool-12000-btu-diy-5th-generation-mini-split-air-handler-condenser-115v-diy-12-hp-wm-115d25-o), 18,000 (https://www.acunitsforless.com/products/mrcool-18-000-btu-diy-5th-generation-mini-split-air-handler-condenser-230v-diy-18-hp-wm-230d25-o), 24,000 (https://www.acunitsforless.com/products/mrcool-24000-btu-diy-5th-generation-mini-split-air-handler-condenser-230v-diy-24-hp-wm-230d25-o) and 36,000 Btu (https://www.acunitsforless.com/products/mrcool-36-000-btu-diy-5th-generation-mini-split-air-handler-condenser-230v-diy-36-hp-wm-230d25-o), plus the set for 24K and 36K heads (https://www.acunitsforless.com/products/mrcool-diy16-3858-o-16ft-3-8-5-8-lineset-for-diy-24k-36k-indoor-r454b).
- Line sets for the 18K head at AC Units For Less (16 feet (https://www.acunitsforless.com/products/mrcool-diy16-1412-o-16ft-1-4-x-1-2-lineset-for-diy-18k-indoor-r454b), 35 feet (https://www.acunitsforless.com/products/mrcool-diy35-1412c-o-35ft-1-4-x-1-2-lineset-for-diy-18k-indoor-w-diy-pro-cable-r454b), 50 feet (https://www.acunitsforless.com/products/mrcool-diy50-1412c-0-50ft-1-4-x-1-2-lineset-for-diy-18k-indoor-w-diy-pro-cable-r454b), read 2026-09-25). Bracket, cover kit and five zone condenser at Sutherlands (https://sutherlands.com/products/item/3170966/mrcool-wall-mounting-bracket-for-9k-12k-18k-mini-split-condensers), priced per branch.

### Regulation, federal wage data and the hero

- 10 CFR 430.32 (https://www.ecfr.gov/current/title-10/section-430.32), paragraphs (c)(5) and (c)(6) (2026-09-14).
- Occupational Employment and Wage Statistics, May 2025, code 49-9021, series OEUN000000000000049902108, from LABSTAT (2026-09-14).
- Photo by Shixart1985, Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Snow_covers_an_outdoor_air_conditioning_unit_in_a_winter_landscape_during_a_heavy_snowfall.jpg), CC BY 2.0 (https://creativecommons.org/licenses/by/2.0/).
- SimplyWise pricing (https://www.simplywise.com/blog/pricing/) (2026-09-14).

## Common questions on mini split installation cost

### Cost questions

**How much does mini split installation cost for one zone?**

A complete 18,000 Btu system posted at $2,909 on September 14, 2026. Add $510 for a 35 foot R-454B line set and $237 for bracket and line hide, so $3,656 before labor.

**Does a bigger head cost proportionally more?**

No. The line read $2,359 at 12,000 Btu and $3,769 at 36,000 Btu, about 60 percent for triple the capacity. The 12,000 runs on 115 volts, not like for like.

**What does a mini split line set cost?**

On September 25, 2026 the R-454B set for an 18K head posted at $239 for 16 feet, $510 for 35 feet and $599 for 50 feet. A 12K head takes a smaller quarter by three eighths set.

### Scope and equipment questions

**Should I price a mini split or central air?**

Different jobs. Ductless carries no trunk, no boots, no plenum. If the house has ductwork, price the ducted changeout instead.

**What efficiency rating does a ductless system have to meet?**

Split system heat pumps must hit 14.3 SEER2 and 7.5 HSPF2 under federal rule. That floor is national. The regional lift names air conditioners only.

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