Air conditioner cost and installation calculator

A single-head split system is typically $1,500 to $4,500 supply and installed in Perth (GST inc.), depending on the kW size, the brand, and how easy the install is. A multi-head system covering several rooms runs about $4,500 to $11,000+.

Most Perth ducted reverse-cycle installs land between $12,000 and $15,000. Smaller homes can start around $8,000, and large or double-storey homes can push past $22,000. Home size, number of zones, and any switchboard upgrade are the biggest variables.

Panasonic is our top pick — premium quality, in our experience on par with Daikin, but at a sharper price thanks to our supplier relationship. It's also the only brand offering nanoeX air purification in ducted systems, and its outdoor circuit boards are lacquer-coated to resist insects and rodents shorting them. Daikin and Mitsubishi Electric are also premium; Midea is the value option. We'll recommend what genuinely suits your room and budget.

The main factors are a long refrigerant pipe run, a two-storey or difficult-access install, the brand tier, and any new electrical circuit or switchboard work. Because we're dual-licensed, the electrical is handled in-house on the same job.

Not legally as a complete job in Australia. Connecting and charging the refrigerant requires an ARC refrigerant handling licence, and the dedicated circuit and any switchboard work must be done by a licensed electrician — and a DIY install voids most manufacturer warranties. Because we're dual-licensed in both air conditioning and electrical, we handle the whole job, refrigerant and wiring, compliantly and under warranty.

Big-box retailers usually advertise installation from around $600–$900 on top of the unit, but that covers a standard back-to-back fit only — longer pipe runs, brackets, second-storey access and electrical work are billed on top, and the install is subcontracted, so quality and accountability vary. We quote the whole job upfront — unit, install and any electrical — as one local, dual-licensed team.

It's a quick repair-or-replace guide: multiply the age of the unit in years by the repair cost. If the result is over $5,000, you're usually better off replacing it than repairing. For example, a 10-year-old unit needing a $600 repair is 10 × $600 = $6,000, so a new system is the smarter spend. We'll always give you the honest call for your system.

No — it's an indicative GST-inclusive guide for a standard single-storey install with good access. Your exact price is confirmed at a free, no-obligation on-site quote.