Split System vs Ducted Air Conditioning: Which is Right for Your Home?
If you’re thinking about upgrading or installing air conditioning in your Perth home, one of the first decisions you’ll face is choosing between a split system and a ducted system. Both are popular, and both have their merits — but the right choice depends on your home, your budget, and how you live.
Perth summers are no joke. With temperatures regularly climbing above 40°C, a reliable air conditioning system isn’t a luxury — it’s a necessity. In this guide, we’ll break down the key differences between split systems and ducted air conditioning so you can make the best decision for your home.
Quick Summary: Split systems are affordable, energy-efficient, and perfect for cooling specific rooms — making them the most popular choice for Perth homeowners. Ducted systems offer whole-home comfort but come with a significantly higher price tag. Read on to find out which option suits your home, budget, and lifestyle.
What Is a Split System Air Conditioner?
A split system consists of two units: an indoor head unit mounted on the wall, and an outdoor compressor unit. They’re connected by refrigerant piping and are designed to cool (and heat) a single room or open-plan area.
Split systems are the most common type of air conditioner installed in Perth homes — and for good reason.
Pros of Split Systems
- Cost-effective to purchase and install
- Quick and straightforward installation — usually completed in a day
- Energy-efficient: only cool the rooms you’re using
- Ideal for apartments, smaller homes, or single rooms
- Wide range of brands and sizes available
- Inverter technology keeps running costs low
Cons of Split Systems
- Only cools one area per unit (multiple rooms require multiple units)
- Indoor unit is visible on the wall
- Multiple units can add up in cost for larger homes
What Is Ducted Air Conditioning?
Ducted air conditioning uses a central unit (usually in the roof space) connected to a network of ducts that deliver cooled or heated air to multiple rooms through ceiling or floor vents. A single thermostat or zoning system controls the whole home.
Pros of Ducted Systems
- Cools the entire home from one central system
- Discreet — only ceiling vents are visible
- Zoning options let you control which rooms are cooled
- Adds value to your property
- Ideal for larger homes with multiple bedrooms
Cons of Ducted Systems
- Significantly higher upfront cost to purchase and install
- Installation is more complex and disruptive
- Higher running costs if cooling the whole home at once
- Requires adequate roof space for ducting
Split System vs Ducted: Side-by-Side Comparison
| Split System | Ducted | |
|---|---|---|
| Upfront Cost | Lower | Significantly higher |
| Installation Time | ~1 day | Several days |
| Coverage | Single room or zone | Whole home |
| Visibility | Wall-mounted unit | Ceiling vents only |
| Running Costs | Low (zone-specific) | Higher if whole home running |
| Best For | Units, smaller homes | Larger homes, whole-home comfort |
Which Is Right for Your Perth Home?
Choose a Split System If…
- You’re on a tighter budget
- You only need to cool one or two rooms
- You’re in an apartment, unit, or smaller home
- You want a fast installation with minimal disruption
Split systems are also perfect if you want to gradually cool your home room by room — starting with the main living area or master bedroom, then adding more units over time.
Choose Ducted Air Conditioning If…
- You have a larger home with four or more bedrooms
- You want whole-home cooling from a single, discreet system
- You’re building or renovating and can plan ductwork in advance
- Long-term comfort and property value are a priority
What About Multi-Split Systems?
There’s a third option worth knowing about: the multi-split system. This connects multiple indoor units to a single outdoor compressor, giving you room-by-room control without the cost and complexity of full ducted installation.
Multi-splits are a great middle ground for medium-sized homes. Learn more on our installation options page.
How Much Does Each System Cost in Perth?
Pricing varies based on unit size, number of rooms, installation complexity, and brand. As a general guide:
- Single split system: $1,200 – $2,500 fully installed
- Multi-split system (2–4 rooms): $3,000 – $6,000+
- Ducted system (full home): $8,000 – $15,000+
For a personalised, obligation-free quote, visit our pricing page.
Split System Installation in Perth — The Smart Choice for Most Homes
For the majority of Perth homeowners, a split system is the clear winner. It’s affordable, fast to install, and built to handle our harsh summers without sending your energy bills through the roof. Whether you’re cooling a single bedroom, a large open-plan living area, or gradually working through your whole home one room at a time, a split system gives you the flexibility and value that ducted systems simply can’t match at the same price point.
At Air-Cond Installs WA, split system installation is our specialty. With over 30 years of experience serving Perth and the northern suburbs, we know exactly which systems perform best in our climate, and we’ll make sure yours is sized, positioned, and installed to get the most out of every degree. We supply and install top brands including Daikin, Mitsubishi Electric, and Toshiba — all backed by our expert workmanship.
Ready to get your split system installed? Contact our team today for a free, no-obligation quote.
