Duct Cleaning Cost in Sydney (2026)
In Sydney, the number of ducted systems and high labour rates shape what a duct clean costs.
Your duct cleaning details
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: June 2026.
What a duct cleaning costs in Sydney
Ducted reverse-cycle air-conditioning is common in Sydney's freestanding houses, and cleaning the ductwork, vents and return air of built-up dust, debris and any mould is the job here. Access to the ducts in a tight roof space, and in two-storey homes, is where the installer's time goes, and apartment ducted systems add strata access on top. The humid summers can encourage mould growth in ducts if a system runs cool and damp, which is a common reason Sydney households book the clean.
Sydney's labour rates are the highest in the country, so a duct clean carries a higher base here than elsewhere, and the extent of the system, the number of outlets and the roof access are the main variables. For a standard single-storey ducted home the job is moderate; for a large or two-storey system with poor roof access, the time climbs. The humidity makes mould in the ducts a genuine reason to clean here, not just dust.
Compare against the national picture: Duct Cleaning Cost in Australia →
Duct Cleaning Cost in other cities
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.