Licensed Air Conditioning & HVAC Specialists Across Australia
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Air conditioning costs — common questions
How much does air conditioning installation cost in Australia?
Air conditioning installation in Australia typically costs $600–$2,500 for a single split system, $3,000–$12,000 for a ducted system, and $800–$2,500 for an evaporative cooler. A standard 2.5kW split system supply and install costs $900–$1,400. A 5–7kW split system costs $1,200–$2,200. Ducted systems for a 3–4 bedroom home cost $5,000–$12,000 depending on the number of zones. Prices are typically 10–20% higher in Sydney and Melbourne. Compare free quotes on A Couple Quotes — rates vary by up to 40% between installers for the same job.
What size air conditioner do I need for my home?
Air conditioner sizing depends on room size, ceiling height, insulation, and climate. As a guide: 2.5kW suits rooms up to 20m²; 3.5kW suits 20–35m²; 5–6kW suits 35–60m²; 7–9kW suits 60–80m². In Queensland and WA, size up by one tier due to higher heat loads. An undersized unit runs constantly and wears out faster; an oversized unit short-cycles and doesn't dehumidify properly. A licensed HVAC installer will calculate the correct capacity for your space.
How much does ducted air conditioning cost in Australia?
Ducted air conditioning in Australia typically costs $5,000–$15,000 supply and installed for a 3–4 bedroom home. A basic 3-zone ducted system costs $5,000–$8,000. A 5–6 zone system for a larger home costs $8,000–$15,000. Premium inverter systems with smart zoning cost $12,000–$20,000+. Ducted systems require ceiling space for ductwork — your installer will assess suitability during a site visit. Compare free quotes on A Couple Quotes for ducted air conditioning near you.
How often should I service my air conditioner in Australia?
Air conditioners in Australia should be serviced every 1–2 years for residential systems and every 6–12 months for commercial systems. Regular servicing includes cleaning filters, checking refrigerant levels, inspecting electrical connections, and cleaning coils. Skipping servicing reduces efficiency by 10–25%, shortens the unit's lifespan, and can void the manufacturer's warranty. In coastal areas, annual servicing is recommended due to salt air corrosion. A service call typically costs $100–$250 depending on the system type and location.
Do I need a licensed installer for air conditioning in Australia?
Yes — in Australia, anyone who installs, services, or repairs air conditioning systems that contain refrigerant must hold an ARCtick licence issued by the Australian Refrigeration Council (ARC). Electrical work must be performed by a licensed electrician. Installing an air conditioner without a licensed technician is illegal and can void your home insurance. Always ask your installer for their ARC licence number and check it at the ARC website before work begins.
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