Air Conditioning Installation Costs

Air Conditioning Costs

Typical installed prices:

• Split system 2.5kW: $1,200-1,800 installed
• Split system 5kW: $1,800-2,500 installed
• Split system 7kW: $2,200-3,200 installed
• Multi-head (2 indoor): $4,000-6,000 installed
• Ducted (small home): $8,000-12,000 installed
• Ducted (large home): $12,000-20,000 installed

Split System Sizing

• 2.5kW: 20-30m² (bedroom, small office)
• 3.5kW: 30-45m² (medium bedroom, study)
• 5kW: 45-60m² (living room)
• 7kW: 60-80m² (large living area)
• 8-9kW: 80-100m² (open plan)

Ducted vs Split

Ducted

Pros: Whole home cooling, hidden, zone control

Cons: Higher cost, needs roof space, harder to retrofit

Split System

Pros: Cheaper, easy install, individual room control

Cons: Visible indoor unit, multiple units needed

Running Costs

Approximate running costs (6 hours/day):

• 2.5kW split: $150-250/year
• 5kW split: $300-500/year
• Ducted (medium): $600-1,200/year