Split System Installation Cost Calculator
Estimate the cost to supply and install a split system air conditioner in Australia. Choose the capacity for your room, the install type and any extras.
Your split system installation details
Your estimate sits within the typical range.
The unit itself is often less than half the cost, installation, electrical and pipe work make up the rest, so a cheap unit badly installed is false economy.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- A back-to-back install on an existing circuit is the cheapest configuration.
- Buy the right capacity for the room rather than oversizing to be safe.
How we estimate this
A split system install in Australia typically costs $900 to $5,000 in 2026 depending on capacity and install type. A small bedroom unit back-to-back is cheapest; a large open-plan unit with a long pipe run and new circuit reaches the top.
Pricing reviewed: October 2026.
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Pricing reviewed October 2026. Indicative Australian costs, not a quote.
Understanding split system installation costs in Australia
A split system install in Australia typically costs $900 to $5,000 in 2026 depending on capacity and install type. A small bedroom unit back-to-back is cheapest; a large open-plan unit with a long pipe run and new circuit reaches the top.
Match the capacity to the room: an undersized unit struggles, an oversized one short-cycles and wastes energy. Installation, electrical and pipe work are often more than the unit itself.
Frequently asked questions
How much does split system installation cost in Australia?
Typically $900 to $5,000 in 2026 depending on capacity and install type. A small back-to-back install is cheapest; a large unit with a long pipe run costs the most.
What size split system do I need?
Roughly 2.5kW for a small bedroom, 3.5 to 5kW for a living room, and 6kW+ for open-plan. Match it to the room, oversizing wastes energy.
Are you a trades business?
Everyone on this page is working out what split system installation costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.