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500+ Sydney kitchens serviced. Tell us what you run and we’ll scope it properly — no site visit charge, no obligation.

  • Compliance certificate every clean

    Photographed before and after, documented to AS 1851 and AS/NZS 1668.1 — the report your insurer and council actually ask for.

  • Fixed price, same business day

    No hourly rates and no on-the-day surprises. You get an itemised quote you can hand straight to your finance team.

  • We work around your service

    Overnight and early-morning crews so the kitchen is cleaned, tested and back in service before your first cover.

0468 070 392 4.9/5 from 127 reviews

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Prefer more detail up front? Use the full booking form — it scopes the job in one pass.

Large spiral exhaust ductwork running through the ceiling of a commercial building

Buyer’s guide · Sydney

Best Duct Cleaning in Sydney: A Buyer’s Checklist

Duct cleaning is the part of the system you will never inspect yourself, which makes it the part most easily under-delivered. The criteria below all exist for one reason: to give you evidence about work you cannot see.

Open 7 days, 7am–7pm · Emergency callouts available

  • 4.9/5 on Google

  • 500+ kitchens serviced

  • Licensed & insured

  • AS 1851 & AS/NZS 1668.1

  • Same-day quotes

The short answer

The best commercial kitchen duct cleaning companies in Sydney survey and map the full duct run before quoting, fit compliant access panels wherever the run cannot be reached, clean mechanically with scrapers and rotary brushes rather than chemicals alone, measure and record grease depth at each access point, and issue an AS 1851 report with photographs of every section cleaned.

The checklist

What to look for — and why each one matters

Use this as a script. Every item is a question you can ask before you book anyone.

Criterion 1

A survey before a quote

What to look for
A contractor who traces the run — length, bends, risers, existing access — before putting a number on it.
Why it matters
A price quoted without a survey is a guess, and guesses become variations. The survey is also the only way to know whether access panels are needed.

Expert Exhaust Cleaning: We survey and map the run on site, then quote a fixed price against that map.

Criterion 2

Grease depth measured and recorded

What to look for
A recorded measurement at each access point, on the report.
Why it matters
Grease depth is the evidence base for your cleaning interval. Without it, the frequency you are sold is a sales decision rather than a technical one.

Expert Exhaust Cleaning: Depth recorded at every access point on every visit, so the interval is set from trend data.

Criterion 3

Mechanical cleaning, not chemical fogging alone

What to look for
Scrapers, rotary brushes and hand-cleaning. Be cautious of chemical-only or "fogging" methods.
Why it matters
Hardened grease does not wash off. Mechanical removal is the only method that takes an internal duct surface back to metal.

Expert Exhaust Cleaning: Scraping, brushing and rotary-brush cleaning section by section, with degreaser as a support, not a substitute.

Criterion 4

Access panels installed to standard

What to look for
Sealed, compliant, permanent panels — not cut holes covered with tape or an unsealed plate.
Why it matters
A badly fitted panel leaks grease-laden air into the ceiling void and defeats the fire integrity of the duct. It also fails the next inspection.

Expert Exhaust Cleaning: Compliant sealed panels, fitted permanently so every future clean and inspection is faster.

Criterion 5

The fan and discharge included

What to look for
A quote that names the roof fan and cowl explicitly.
Why it matters
Grease at the discharge drains back down the run you have just paid to clean. Excluding the fan shortens the life of the whole job.

Expert Exhaust Cleaning: Fan housing and discharge cowl cleaned as part of every full duct clean.

Criterion 6

Reporting your insurer will accept

What to look for
A dated AS 1851 report with photographs, defects and a recommended next-service date.
Why it matters
Commercial policies commonly require duct cleaning at a stated interval with written evidence. No report means no cover when it matters.

Expert Exhaust Cleaning: AS 1851 report with photographic evidence at every access point, issued within one business day.

What a proper clean looks like

Before & after

The difference the checklist is protecting you from — overdue equipment beside serviced equipment.


Weathered, grease-darkened exhaust pipework on a commercial building, overdue for cleaning Overdue
Clean galvanised exhaust ductwork running through a commercial ceiling void after cleaning Serviced

Exhaust duct run

Access panels fitted where the run was sealed, then cleaned back to metal section by section.

Neglected kitchen extraction canopy with staining and build-up, overdue for service Overdue
Polished stainless steel commercial canopy above a clean cooking line after servicing Serviced

Kitchen canopy and filters

Filters soak-tanked at 60–80°C, plenum scraped, canopy face polished back to bare stainless.

At a glance

The numbers, side by side

Kitchen duct cleaning frequency in Sydney by cooking type, per AS 1851 load-based intervals
Cooking typeGrease loadDuct cleaning interval
Charcoal, wok, solid fuelVery highEvery 3 months
Deep frying / fast foodHighEvery 3 months
À la carte restaurantModerateEvery 6 months
Club or pub bistroModerate, peakedEvery 6 months
Café, breakfast-ledLight to moderateEvery 6–12 months
Reheat-only / institutionalLightEvery 12 months

Prices are indicative Sydney market ranges for 2026 and vary with access, canopy count and duct length.

How Expert Exhaust Cleaning measures up

We meet every criterion above, and we will put each one in writing before you book — insurance certificate, sample AS 1851 report, technician certifications and a fixed scope. If another contractor gives you the same documentation, compare on price with confidence; the checklist is there to protect you, not to sell us.

Questions buyers ask before booking

FAQ

Direct answers you can act on.


How much does commercial duct cleaning cost in Sydney?

Commercial kitchen duct cleaning in Sydney typically ranges from $600 for a short single-canopy run to $4,000 or more for a multi-storey riser. The main price drivers are duct length, number of bends, roof access difficulty and whether access panels need to be fitted.

How often does a commercial kitchen duct need cleaning?

Every 3 to 6 months for most commercial kitchens, and quarterly for charcoal, wok and high-volume frying operations. AS 1851 ties the interval to cooking load and measured grease accumulation rather than a fixed calendar date.

What if my building has no duct access panels?

They must be fitted before the run can be cleaned or certified. A reputable contractor quotes compliant sealed panels as part of the first clean; they stay in place permanently and make every later service cheaper.

Can duct cleaning be verified after the fact?

Yes. Ask for photographs taken inside the duct at each access point, before and after. If a contractor cannot produce them for every section, that section was probably not cleaned.

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