Duct Cleaning Cost Calculator
Estimate the cost of cleaning ducted heating or air conditioning ducts in Australia.
Your duct cleaning details
Your estimate sits within the typical range.
Your estimate sits within the typical range.
Ways to save
- Treat any '$12 a duct' Facebook ad as a hook, the real money comes from a high-pressure upsell to 'urgent' mould or sanitising treatment once they're on site. Consumer Affairs Victoria has warned about exactly this on community pages.
- Ask for before-and-after photos taken inside the actual ducts as proof of work; and don't book duct cleaning at all for a wall-mounted split system, it has no ducts to clean.
How we estimate this
Duct cleaning for a standard home in 2026 runs about $200–$500, and it scales with the number of outlets: six vents or fewer is roughly $200–$300, seven to ten vents $300–$400, and eleven-plus $400–$600. Per vent the going rate is around $25–$50 ($25–$40 in Melbourne). Sanitising and deodorising are extra, and genuine mould remediation adds $150–$300 on top.
Pricing reviewed: October 2026.
Duct cleaning prices by city
Costs vary by city. See the local breakdown for your capital.
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Pricing reviewed October 2026. Indicative Australian costs, not a quote.
Understanding duct cleaning costs in Australia
Duct cleaning for a standard home in 2026 runs about $200–$500, and it scales with the number of outlets: six vents or fewer is roughly $200–$300, seven to ten vents $300–$400, and eleven-plus $400–$600. Per vent the going rate is around $25–$50 ($25–$40 in Melbourne). Sanitising and deodorising are extra, and genuine mould remediation adds $150–$300 on top.
Be clear-eyed about what you're paying for. This is the most scam-prone service in the home-cleaning space, the classic playbook is a too-good-to-be-true 'dollar-a-duct' ad from a Facebook account that's only weeks old, blasting air through a couple of vents, then pushing 'urgent' mould treatment. Red flags are stock photos (sometimes showing overseas power points), the same images reused across unrelated posts, and pressure to decide on the spot.
Even done honestly, routine duct cleaning has weak evidence for improving air quality in an ordinary, dry home. It genuinely earns its keep when there's visible mould, vermin, post-renovation debris or water damage after a flood, not as an annual ritual. And remember ducts only exist on ducted heating and cooling: anyone quoting 'duct cleaning' on a ductless split is either confused or fishing.
Frequently asked questions
How much does duct cleaning cost?
About $200–$500 in 2026 for a typical home, roughly $25–$50 per vent, with six-vent homes around $200–$300 and eleven-plus around $400–$600. Sanitising and mould treatment add more.
How often should ducts actually be cleaned?
For a normal dry home the evidence for routine cleaning is weak. It's genuinely worthwhile when there's visible mould, vermin, post-renovation debris or flood damage, not on a fixed annual schedule.
How do I avoid a duct-cleaning scam?
Be wary of dollar-a-duct ads, brand-new Facebook accounts, stock photos and on-the-spot 'urgent mould' upsells. Ask for before-and-after photos taken inside your own ducts, and never book duct cleaning for a ductless split system.
Are you a cleaning business?
Everyone on this page is working out what duct cleaning costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.