How Much Does Ducted Air Conditioning Cost to Install in Perth? (2025 Guide)

 

If you're living in Perth, you already know what summers feel like—like walking straight into a hot blow dryer. That’s where ducted air conditioning steps in, offering relief that covers your whole home, not just one room. But let’s be honest, the first thing you’re thinking is: How much is this going to cost me?

In this guide, we break down everything you need to know about ducted air conditioning installation costs in Perth for 2025—no jargon, no fluff, just the real stuff. From average prices to cost factors and some sneaky little extras you’ll want to budget for, we’ve got it all here.



What Is Ducted Air Conditioning?

Let’s start with the basics. Ducted air conditioning is a system that cools or heats your entire home using one central unit, with air delivered through ducts in the ceiling. You get to control different zones (like bedrooms or the living area) from one panel, which feels pretty convenient—especially when one person in the house is always cold and another always hot.

Unlike a wall-mounted split system, a ducted unit is out of sight and out of the way. All you see are neat little vents, which is great if you hate the look of bulky machines on your wall.

Average Ducted Air Conditioning Installation Cost in Perth (2025)

Here’s the part you came for: the price tag.

 - Small Home (2–3 zones): $8,000 – $11,000
 - Medium Home (4–5 zones): $11,000 – $15,000
 - Large Home (6+ zones): $15,000 – $20,000+

These estimates include both the system and the installation. Of course, every home is different, and prices can shift based on layout, installer, and brand preferences. But if you’ve been hearing whispers that ducted costs “thousands and thousands,” well…they weren’t lying.

What Affects the Cost of Ducted Aircon Installation?

Now let’s talk about what can bump that cost up or down. You don’t want surprises on install day, trust me.

1. Home Size & Number of Zones

The more zones you want, the more ductwork and vents needed. A two-bedroom unit will be cheaper to kit out than a five-bedroom home with multiple living areas.

2. Brand & System Type

Top-tier brands like Daikin, Mitsubishi Electric, and ActronAir will naturally cost more than budget options. You’ll also pay more for inverter systems, but they offer better energy efficiency and long-term savings.

3. Ceiling Space and Home Layout

Installing ducting in a single-storey home with a standard pitched roof? Easy. Installing in a low-clearance flat-roof home? That’s where the installer’s back starts to hurt—and your quote creeps up.

4. Ducting and Zoning Technology

Smart zone controls (yes, there are apps for your AC now) cost more than basic manual systems. But if you love tech or want to control your temperature remotely, it could be worth it.

5. Labour and Installer Rates

Quotes vary between installers, depending on experience and workload. Some include extras like commissioning or post-install servicing. Others… not so much.

6. Electrical Upgrades

If your switchboard is older than your TV, it might need an upgrade to support the new system. Expect to pay $500–$1500 if this is the case.

Hidden Costs You Might Not Think About

These aren't deal-breakers, but they can sneak up on you:

  • Duct Cleaning (if retrofitting): $300–$600
  • Annual Servicing: Around $150 per visit
  • Ceiling Repairs (post-install): If access panels or holes need patching
  • Smart Thermostat Add-On: $200–$600

Budgeting for these now will save you that “wait, what is this extra charge?” moment later.

Can You Reduce Installation Costs?

Yes, and without cutting corners. Here’s how:

  • Get Multiple Quotes: Always. Perth has no shortage of licensed aircon installers. Compare apples with apples (same brand, same zones).
  • Bundle Upgrades: If you’re renovating, bundle ducted AC with other electrical work.
  • Size It Right: Oversized systems cost more and waste energy. Undersized ones underperform. Ask for a load assessment.
  • Look for Local Rebates: In 2025, some WA energy programs still offer rebates for energy-efficient systems. Worth checking.

Ducted vs. Split System Aircon: What’s More Cost-Effective?

Feature

Ducted System

Split System

Upfront Cost

Higher

Lower

Whole-Home Comfort

Yes

No (one room only)

Aesthetics

Discreet

Bulky unit visible

Energy Efficiency

High (if zoned well)

Moderate

Long-Term Value

Higher

Lower

If you’re staying long-term or looking to increase your home’s value, ducted aircon wins. But for apartments or single-room cooling, splits might be more practical.

How to Find a Reliable Aircon Installer in Perth

You want someone local who knows Perth homes—especially ones built in the '70s with surprise quirks in the roof.

Here’s what to look for:

  • ARCtick Certified: Legally required for aircon installers.
  • Experience in Ducted Systems: Not all tradies are equal.
  • Itemised Quotes: You should know exactly what you're paying for.
  • Customer Reviews: Check Google, not just their website testimonials.

Avoid anyone who gives a price without a home visit. That’s like buying shoes without knowing your size.

Final Thoughts

Installing ducted air conditioning in Perth isn’t cheap—but for many homeowners, it’s worth every dollar. You get full-home climate control, a cleaner look, and better long-term energy efficiency. Whether you're upgrading a tired system or planning a new build, understanding these costs will help you budget wisely—and avoid unwanted surprises.



FAQs

1. Is ducted air conditioning worth it in Perth?
Yes. With Perth’s hot summers and growing preference for whole-home cooling, ducted aircon offers great comfort and long-term value.

2. Can I install ducted aircon in a two-storey home?
Yes, but it may cost more due to extra ductwork, zoning, and installation complexity.

3. How long does ducted aircon last?
With regular maintenance, most systems last 10–15 years.

4. What size system do I need for my home?
It depends on your home size, insulation, and layout. A licensed installer will assess this for you.

5. Are there rebates for ducted air conditioning in WA?
In some cases, yes—especially for energy-efficient systems. Check with WA energy programs in 2025.

6. Can I install it myself to save money?
No. It’s illegal to install refrigerant systems without a certified technician.

7. Do ducted systems work well in winter too?
If you choose a reverse-cycle system, yes—it provides both heating and cooling.

8. What maintenance does it need?
Yearly servicing, filter checks, and occasional duct cleaning keep it running smoothly.

9. Will it increase my electricity bill?
It can—but with zoning and smart use, modern systems are surprisingly energy-efficient.

10. Can I control it from my phone?
Yes, many systems now offer smart controls via mobile apps.

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