Everything You Need to Know About Air Conditioner Changeover in Brisbane
Complete Brisbane homeowner’s guide to replacing an existing split system — what changeover involves, pricing by capacity, reusing existing pipework, brand picks for a 2026 upgrade.
Quick answer: Like-for-like split changeover from $1,800 fully installed including old unit recovery and disposal. Reuse existing pipework if R32-compatible and undamaged — saves $200–$400. 4–6 hours on site for a back-to-back swap.
Brisbane changeover pricing (2026)
| Capacity | Fully installed (from, inc GST) |
|---|---|
| 2.5kW like-for-like | From $1,800 |
| 3.5kW | From $2,000 |
| 5.0kW | From $2,200 |
| 7.0kW | From $2,600 |
Includes new unit, install, refrigerant, vacuum, pressure test, commissioning, old unit recovery + disposal, 10-yr workmanship warranty. Full breakdown: changeover cost guide.
Reusing existing pipework
Often saves $200–$400. Conditions:
- Pipe size matches new unit (most 2.5–7kW share 1/4″+3/8″ or 1/4″+1/2″)
- Pipework was R410A or R32-rated (R22 pipework needs replacement)
- No kinks, corrosion, or insulation damage
- Properly flushed before new charge
Checked at on-site assessment before quote.
When to upsize during changeover
If the existing unit struggled in peak summer — upsize by one capacity step. Brisbane climate has warmed measurably over the last decade. A 2.5kW that was adequate in 2013 may struggle in 2026 summer.
Upsize cost adds $200–$400 for the equipment; install labour unchanged.
Brand picks for changeover
- Daikin Cora — best parts (24hr), reliable, strong resale. From $1,750.
- Mitsubishi MSZ — quietest indoor. Best for bedrooms. From $1,800.
- Fujitsu Lifestyle — best value. From $1,650.
- LG Premium — 10-yr compressor warranty + WiFi standard. From $1,700.
Common questions
How much does AC changeover cost in Brisbane?
From $1,800 for 2.5kW like-for-like, including old unit removal.
Can existing pipework be reused?
Often yes — saves $200–$400. R410A/R32 rated, undamaged, properly flushed.
How long does changeover take?
4–6 hours for back-to-back like-for-like. Longer if pipework replacing or upsizing.
Is old unit removal included?
Yes — refrigerant recovered to ARC standards, units recycled.
Should I upsize during changeover?
If the existing struggled in peak summer — yes, one step up.
Is finance available?
Yes — Brighte and Humm offer 0% interest 12–24 months on approval.
AH Air Conditioning · 63 Britannia Ave, Morningside QLD 4170 · ARCtick licensed · 20+ years across Brisbane.