Home / Services / Duct & Riser Degreasing

Exhaust Duct & Riser Degreasing

Internal duct degreasing including installation of access hatches where required to reach enclosed vertical & horizontal runs.

Exhaust Duct & Riser Degreasing

The duct is where kitchen fires spread. Grease that gets past the filters condenses on the inside of the ductwork, building up out of sight until a single flare-up runs the whole length of the system.

We clean the full run from the canopy spigot to the roof fan, using hot-water pressure equipment and food-safe degreasers. Where a duct has no way in, we install compliant access panels so it can be cleaned properly every time.

What's included

Worker using a hot water pressure washer
Combi oven beneath a stainless exhaust canopy

How it works

Quote

Use the instant quote tool or send us photos of your canopy and roof fan.

Book

We schedule an overnight or between-service window that suits your trade.

Clean

Our crew protects your line, cleans the system and removes all waste.

Certify

You get a dated certificate and photo report the same night.

Typical cleaning frequency

Cooking volume

Typical venue

Clean every
Heavy

Charcoal, wok, 24-hour or high-volume frying

Monthly – Quarterly
Moderate

Restaurants, pubs and clubs with daily frying or grilling

Quarterly
Light

Cafés, bakeries and low-volume kitchens

6-Monthly

Guide only. Your insurer, landlord or council may set a different schedule.

Frequently asked questions

Because the duct is where you can’t see the problem. Grease that gets past the filters condenses on the inside of the ductwork and builds up over months. If a flare-up reaches it, fire can travel the full length of the system, often into ceilings and roof spaces.

We work from access points along the run, using 3000 PSI hot-water pressure equipment and food-safe degreasers, then hand-clean bends, elbows and transitions. We photograph the inside of the duct before and after, so you can see exactly what came out.

That’s common, and it’s why grease gets left behind. Where a run is enclosed, we install compliant access hatches so it can be cleaned properly now and every time after. The quote calculator includes hatches as an option, so there are no surprises.

No. Your line is protected with drop sheets and plastic, and all wastewater and scraped grease is captured, contained and taken off site. Nothing goes down your drains or stormwater.

Yes. Vertical risers are cleaned from access points on each level and from the roof. Choose “Multi-storey / complex riser” in the quote tool and we’ll plan the job around your building.

Tell us your duct run and how many access points you have, or send us a photo of the canopy and any duct access. We’ll come back with a clear price. Get your instant estimate below, or call 1800 228 371 to talk to us now.

Instant estimate

Price your clean in 60 seconds

Venue type, canopy length, filters and duct run. Get a ballpark price straight away.

24/7 emergency & urgent compliance response

Every clean includes

Council notice or insurer deadline?

Urgent compliance cleans dispatched same day across South East Queensland.

© 2026 Caterware Cleaning Services. All rights reserved.

A division of Caterware