(Your down-to-earth, no-fuss guide to keeping your ducted aircon fresh and firing on all cylinders—wherever you are in Australia.)
Are You Cleaning Your AC Often Enough?
Let’s be honest—when was the last time you gave your aircon some love? If you’re like most Aussies, the answer is probably “ages ago”. And look, we get it. Life’s full-on. But here’s the deal: ignoring your ducted system is like never servicing your car—eventually, it’ll let you down (and cost you a heap).
Whether you’re melting through a Gold Coast summer or battling chilly nights in Canberra, your ducted system’s always working overtime. And if you want it to keep doing its job without guzzling electricity or blowing dusty air, a bit of regular TLC is the key.
Here’s what we’re going to walk you through:
- Why cleaning matters more than you think in Aussie homes
- How often to clean what (and when)
- Tradie-approved tools that make cleaning way easier
- Handy tips that actually save you time and money
- When it’s worth upgrading or calling in a pro
- A real story from a Western Sydney family
- FAQs, image ideas, and how to get started today
Let’s roll up the sleeves and sort your ducted system out.ducted air conditioning
Why It Matters: Aussie Homes Cop It All Year Round

No matter where you live—Perth, Brisbane, Ballarat or Broome—your ducted aircon works hard. Heating in winter, cooling in summer, and filtering air 24/7. But with that comes dust, mould, clogged filters, and stale smells. Yep, the usual Aussie mix.
Here’s why a regular clean’s a game-changer:
- Less strain, less spend – A clean system runs more efficiently, which means lower power bills.
- Better air – Say goodbye to that musty smell or sneezy mornings.
- Longer lifespan – Skip the early breakdowns by keeping things tidy.
- No more surprise breakdowns – Especially when it’s 38°C outside or freezing on a school morning.
"We saved $30 a month on electricity just by giving the system a proper clean. It’s not rocket science." — Nathan, Geelong VIC
How It Works: A Realistic Ducted Cleaning Schedule

Don’t worry—we’re not going to hit you with a 10-step checklist every week. Here’s a fuss-free schedule that works for most Aussie homes:
Every Month (or Every 2 Months in Cooler Regions):
- Quick check and rinse of return air filters
- Peek inside the indoor unit—if it’s dusty or smelly, time for a clean
Every 6 Months:
- Take off grilles and give them a clean
- Spray indoor coils with a Viper coil cleaner or AC wash
- Shine a torch into the ducts and look for dust or mould
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Every 12 Months:
- Full duct clean with a brush and vacuum
- Give the outdoor unit a wash with a portable pressure washer
- Use a hydro bag for indoor coil cleaning—no mess, no dramas

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Every 2 Years:
- Book a licensed tech to check pressure and airflow
- Replace old or dodgy filters
Stick to this routine and your system will thank you—your wallet will too.
Aussie Buyer’s Guide: Tools That Actually Work
Let’s face it, trying to clean your ducted system without the right tools is like mowing the lawn with scissors. These are our go-to essentials, all tried and tested by sparkies and homeowners alike:
Tool | Best For | Why It Works in Aussie Homes |
---|---|---|
Flexible duct brush kit | Dusty duct runs | Perfect for older homes and long ductwork |
Viper Evap+ Coil Cleaner | Indoor coils | Ideal for humid QLD and coastal towns |
Hydro bag kit | Mess-free indoor cleaning | Great in apartments or tight laundry areas |
Portable pressure washer | Outdoor units | Clears off cobwebs, dirt, and leaf build-up |
AC Wash Kit (Concentrated) | Repeated use | Saves $$ in multi-unit or tradie setups |
Mini sprayer bottle | Touch-ups | Easy to use and won’t over-soak your coils |
👉 Browse all cleaning tools here
Not Sure Where to Start? Try This Kit First

If you’re new to DIY AC maintenance, keep it simple: get the Viper Indoor Coil Cleaner and a Hydro Bag Kit.
Why?
- It’s no-rinse and foolproof
- You won’t flood your floor
- It works even when it’s cold out
These come bundled in most AC Cleaning Kits, so you’re not left guessing.
Maintenance Tips Straight from Aussie Tradies
- Write the clean date on your filter – sounds boring, but saves headaches later
- Morning cleans are best – cooler coils, less sweat
- Bin the bleach – always go with HVAC-safe sprays
- Use your phone torch – you’ll be shocked what’s lurking in those ducts
- Old filters? Replace 'em – every 12–18 months max
When to Upgrade or Call in the Cavalry
Sometimes, the gear’s just had it. Watch for:
- Worn-out brushes or brittle bags
- Cleaning sprays that don’t foam anymore
- Your unit still smells or underperforms after cleaning
If your system’s pushing 10–15 years and still hasn’t had a proper clean or inspection—it’s probably time to ring a pro.
Real Customer Story: Belinda from Western Sydney
“It was our third summer in Parramatta, and the AC just wasn’t doing the job. We saw the ducted cleaning kits on HVAC Shop, gave it a go, and honestly—we felt the difference within a day. It’s been quieter, cooler, and way less dusty ever since.”
— Belinda, Parramatta NSW
Key Takeaways
- Aussie ducted systems work hard all year—don’t ignore them
- A proper cleaning schedule saves you money, hassle, and sick days
- The right gear makes maintenance quick and painless
- Most of it can be done DIY (with a little help from us)
- Shop HVAC Shop for fast, Aussie-wide shipping and tools that tradies trust
Ready to Breathe Easier?
We make it simple to stay on top of ducted AC maintenance. Whether you're in the bush, by the beach, or smack in the city, we’ve got tools that work and ship fast across Australia.
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👉 Start with a cleaning kit that has it all
Don’t wait for the system to stink or struggle. Give it a clean and feel the difference.
FAQs
Q: What’s the #1 mistake with ducted AC?
A: Waiting too long. A little dust becomes a lot of dust real quick.
Q: Should I really clean filters monthly?
A: If you’ve got pets, allergies, or kids—yep. Otherwise, every 2 months can do.
Q: Can I just spray it with regular cleaner?
A: Nope. You need HVAC-safe stuff. Otherwise, you’ll wreck the coils.
Q: What can I DIY, and what should a pro handle?
A: Filter cleaning, duct brushing, and basic spray-downs are all DIY. Deep duct cleans and airflow balancing? Leave that to a tech.
Q: I rent—can I still clean it?
A: Absolutely. Most landlords appreciate tenants keeping things in good nick. Just don’t open anything you’re not meant to.