Split System Installation Cost Calculator & Price Guide
Use this Split System Installation Cost Calculator & Price Guide to estimate the split system installation cost for your home, whether you need a small bedroom unit or a larger open-plan system. In Australia, the split system air conditioner installation cost for supply and install split system jobs typically starts from around AUD 1,500 per system and can reach about AUD 3,000 per system for larger back-to-back installs before site complexity adjustments.
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Supply-and-install midpoints for Australia. Pick capacity, how many systems, and install complexity. Real quotes vary by brand, pipe run, electrical work and outdoor unit location.
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Split System Installation Price Breakdown
Typical job based on 1 system (Back-to-back, short pipe run). Prices are supply-and-install midpoints — actual quotes will vary.
| Type | Cost per system (Back-to-back, short pipe run) | Typical 1 system (Back-to-back, short pipe run) job |
|---|---|---|
| 2.5kW (bedroom / study) | $1,500 | $1,500 |
| 5kW (living area) | $2,400 | $2,400 |
| 7kW (large / open-plan) | $3,000 | $3,000 |
What Affects Split System Installation Cost?
- System size and capacity: The unit size is one of the biggest drivers of split system ac installation cost. Based on the pricing shown here, a 2.5kW system is AUD 1,500, a 5kW system is AUD 2,400, and a 7kW system is AUD 3,000 for supply and install split system work on a back-to-back, short pipe run basis.
- Pipe run length and electrical work: A standard back-to-back install is the base price, but longer pipe runs or the need for a new circuit increase the price. These jobs use a ×1.2 multiplier, so the cost to install air conditioner split system setups rises compared with a simple short-run installation.
- Property access and installation difficulty: If the home is 2-storey, brick, or has a difficult outdoor unit location, installation is more labour-intensive. These site conditions use a ×1.4 multiplier, which lifts the aircon split system installation cost above the standard rate.
- Number of systems: This calculator is based on the number of systems being installed, so total cost increases per unit. If the calculated price falls below the minimum job charge, a minimum of AUD 1,200 applies.
Split System Installation Cost - Frequently Asked Questions
For a typical 1-system job on a back-to-back, short pipe run basis, prices range from AUD 1,500 for a 2.5kW unit to AUD 3,000 for a 7kW unit. A common 5kW living area system is AUD 2,400. Displayed estimates are generally shown as a range of ±15% around the midpoint.
The supply and install split system price for a 2.5kW bedroom or study unit is AUD 1,500 per system for a back-to-back, short pipe run install. With the displayed estimate range of ±15%, that would show as roughly AUD 1,275 to AUD 1,725. This is the lowest standard tier in the pricing table.
A 5kW split system, which is the most common living-room size, is priced at AUD 2,400 per system for a back-to-back, short pipe run job. Using the calculator's displayed range, that equates to about AUD 2,040 to AUD 2,760. Costs increase if the install needs a longer pipe run or a new circuit.
For a 7kW system suited to a large room or open-plan living area, the base supply and install price is AUD 3,000 per system. The displayed estimate range would be about AUD 2,550 to AUD 3,450. More difficult access or a 2-storey or brick home can increase this using the ×1.4 multiplier.
The base rates apply to back-to-back, short pipe run installations, but more complex jobs cost more. A longer pipe run or new circuit uses a ×1.2 multiplier, while a 2-storey, brick, or difficult outdoor unit setup uses a ×1.4 multiplier. For example, a 5kW system at AUD 2,400 would be adjusted upward using those same multipliers.
On this page, supply and install split system pricing refers to the unit plus installation, priced per system. The listed base prices are AUD 1,500 for 2.5kW, AUD 2,400 for 5kW, and AUD 3,000 for 7kW on a back-to-back, short pipe run basis. If the calculated total comes in under the minimum, a minimum job charge of AUD 1,200 applies.
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