Commercial Kitchen Duct Cleaning Services | Full System Degreasing
We offer professional commercial kitchen duct cleaning services for restaurants, hotels, aged care facilities, hospitals, schools, food courts, catering companies, and food manufacturing facilities. We clean the entire exhaust duct system from rooftop to cooktop, every horizontal and vertical duct run, the plenum chamber, inline fans, rooftop exhaust fan units, access hatches, duct connections, and every component in the exhaust path that accumulates grease.
Your ductwork is the part of the kitchen exhaust system you cannot see, and it is the part that poses the greatest fire risk. Grease builds up silently on internal duct walls over months and years, creating a continuous fuel path that can carry fire from your kitchen to your roof and throughout your building.
- ISO Certified
- Fully Insured
- Police-Checked Staff
- After-Hours Service
ISO Certification Standards
Westlink Commercial Cleaning provides professional commercial kitchen duct cleaning services to remove grease buildup, smoke residue, and contaminants from kitchen exhaust ducts. Our expert team uses industry-grade equipment to thoroughly clean ductwork, improving airflow, maintaining hygiene, and reducing fire risks in commercial kitchens.
We service restaurants, cafés, hotels, and commercial kitchens, delivering reliable duct cleaning that helps businesses stay safe, compliant, and inspection-ready. Contact us today for a free quote and keep your kitchen exhaust system clean and efficient.
Reliable Cleaners
Trusted By Major Australian Brands
We’re proud to serve some of Australia’s leading companies, offering reliable cleaning services that meet the highest safety and hygiene standards.
Eco Friendly
We use environmentally safe and sustainable cleaning products to protect your workspace, your employees, and the planet.
What’s Included in a Commercial Kitchen Duct Clean
When we say we clean your commercial kitchen duct system, we mean every component in the exhaust path. Not just the easy-to-reach parts. Not just the visible surfaces. Every section, every connection point, every component from your commercial kitchen canopy to the rooftop exhaust fan.
Exhaust Ductwork Horizontal and Vertical Runs
The primary duct runs are the core of your exhaust system, connecting the canopy and plenum to the exhaust fan. Horizontal runs collect grease through gravity and condensation as grease-laden air cools during its journey through the system. Vertical risers carry grease-laden air upward, and grease accumulates heavily at bends, direction changes, and seam joints. We degrease every metre of ductwork, horizontal and vertical, and every transition between them.
Exhaust Plenum Chamber
The plenum sits directly behind the filters and is the first collection point where grease enters the duct system. It is one of the heaviest grease accumulation points in the entire exhaust system because it receives the most concentrated flow of grease-laden air. AS 1851 requires annual plenum cleaning at a minimum. We access, degrease, and inspect the plenum on every service.
Rooftop Exhaust Fan Unit
The rooftop exhaust fan is the endpoint of the kitchen duct system, pulling grease-laden air through every duct run before expelling it. Grease accumulates heavily on the fan blades, motor housing, and surrounding cowling. A grease-coated fan is an overheating risk, a potential ignition point, and an efficiency drain. We clean and degrease the fan blades, motor exterior, fan housing, and the area immediately surrounding the rooftop unit.
Inline Exhaust Fans and Booster Fans
Some exhaust systems include inline booster fans installed within the duct run to improve airflow in longer or more complex duct layouts. These fans accumulate grease just like the main rooftop fan and present the same overheating and fire risks. We clean every inline fan in the system as part of our full duct cleaning service.
Duct Connections, Collars, and Joins
Grease collects heavily at every point where duct sections connect collars, flanges, seams, and joints. These connection points create small ridges and gaps where grease accumulates faster than on smooth duct walls. They are high-risk accumulation points that are frequently missed in superficial cleans. We target every connection and joint specifically during our cleaning process.
Grease Gutters and Drip Trays
Grease collection points within the duct path catch liquid grease runoff as it drains from duct walls and components. If these are not cleared regularly, they overflow and drip contaminated grease back into the system or, worse, onto surfaces below. We clear, clean, and inspect all grease gutters and drip trays on every service.
Book Your Free Quote Now: https://westlinkcommercialcleaning.com.au/get-a-quote/
Email Us: info@westlinkcommercialcleaning.com.au
Our Commercial Kitchen Duct Cleaning Process
Kitchen duct cleaning is more complex than canopy cleaning. The ductwork is hidden, often difficult to access, and requires specialised equipment and techniques to clean properly. We follow a process on every job that ensures complete kitchen cleaning, full compliance, and documented results.
Step 1: System Inspection and Assessment
We inspect the entire duct system, including duct runs, plenum, exhaust fan, inline fans, and all access points. We assess the grease buildup severity and measure grease thickness. We document the system's condition in a pre-clean status report.
Step 2: Kitchen and Equipment Protection
Before any cleaning begins, we cover and protect all cooking equipment, food preparation surfaces, benchtops, and surrou nding floor areas with protective plastic sheeting. Duct cleaning can generate drips and debris as grease is loosened and removed from above.
Step 3: Access Preparation
We open all existing access hatches and inspection ports throughout the duct system. Where access hatches do not exist or are insufficient to reach every duct section, we cut and install new access panels.
Step 4: Chemical Degreasing and Pre-Treatment
We apply commercial-grade alkaline degreaser to all internal duct surfaces, plenum walls, fan components, and inline fan housings. Each application is given the proper dwell time to emulsify and break down carbonised grease deposits that have hardened over months or years of operation.
Step 5: Mechanical Cleaning, Scrubbing, Pressure Washing, and Extraction
We scrub duct interiors with specialised rotary duct cleaning brushes sized for your specific duct dimensions. We follow this with a hot water pressure flush to remove all loosened grease from the duct walls. We then extract all grease waste and debris using industrial wet/dry vacuum equipment.
Step 6: Grease Waste Removal and Disposal
All grease waste removed from the ductwork is collected, contained, and disposed of properly. We do not leave grease residue on your floors, equipment, rooftop, or anywhere on your property. When we leave, the only evidence of our work is a clean duct system.
Step 7: Reassembly, Function Test, and Final Clean
We close and secure all access hatches and panels. We conduct a post-clean equipment function test to verify that the exhaust system is operating correctly, fans are running smoothly, and airflow has been restored.
Step 8: Inspection, Documentation, and Certification
We conduct a final walkthrough inspection with you to verify every component meets the standard. We take before-and-after photographs documenting the interior condition of the ducts, plenum, fan blades, and all cleaned components.
Book your kitchen duct cleaning consultation; it is fast and free:
Email Us: info@westlinkcommercialcleaning.com.au
Call Us: +61 416 053 815
Cleaning Frequency: How Often Should Commercial Kitchen Ducts Be Cleaned?
Kitchen duct cleaning frequency is based on how many hours per day your kitchen operates. The more your commercial kitchen cooks, the faster grease accumulates throughout the duct system.
Kitchen Usage Level | Daily Cooking Hours | Duct Cleaning Frequency | Typical Examples |
Light Use | 2–6 hours/day | Annually | Small cafés, office kitchens, light food prep, canteen warmers |
Moderate Use | 6–12 hours/day | Every 6 months | Mid-size restaurants, hotel kitchens, school canteens, and aged care kitchens |
Heavy Use | 12+ hours/day | Every 3 months | High-volume restaurants, fast food, hospital kitchens, and food manufacturing |
Solid Fuel / Charcoal | Any hours | Monthly | Charcoal grill, wood-fired pizza, smokers, open-flame cooking |
Request a customised duct cleaning schedule for your kitchen. → https://westlinkcommercialcleaning.com.au/get-a-quote/
Industries and Commercial Kitchens: We Offer Our Duct Cleaning Services
We provide commercial kitchen duct cleaning to every type of food service operation. If your kitchen has an exhaust duct system, we clean it.
Restaurants and cafés
They produce the widest variety of cooking grease and operate at volumes that demand regular duct maintenance. We schedule cleaning around your service hours so there is zero disruption to your trade, and our compliance documentation keeps you ready for council inspection at all times.
Hotels and resorts
They often operate multiple kitchens with complex, interconnected duct systems running through multi-storey buildings. We coordinate full-system cleaning across your entire facility, managing the logistics of accessing ductwork across different floors, ceilings, and rooftop locations.
Hospitals and healthcare facilities
Require the highest hygiene and safety standards across every area of the facility, including the kitchen exhaust system. We clean hospital kitchen duct systems to both AS 1851 fire safety requirements and the facility’s broader infection control protocols.
Shopping centres and food courts
Typically have shared exhaust duct systems serving multiple food tenancies. We work with centre management, strata managers, and individual tenants to coordinate cleaning across the entire shared system, ensuring full compliance from every tenancy through to the rooftop fan.
Fast food chains and franchise kitchens
Operate at high volume with cooking methods that produce consistent, heavy grease loads. We offer scheduled duct cleaning programmes aligned to franchise compliance standards and brand operating requirements.
Food manufacturing facilities
They run industrial-scale cooking and processing operations that generate extreme grease and fat vapour loads. The duct systems in these facilities are often larger, longer, and more heavily contaminated than standard commercial kitchens. Our heavy-duty degreasing service is built for the intensity these environments demand.
Function and event centres
Operate kitchens that run at full capacity during events and may sit idle between bookings. We schedule duct cleaning between events so your kitchen is compliant and ready for the next function without any last-minute rush.
Get a Quote Now: https://westlinkcommercialcleaning.com.au/get-a-quote/
Email Us: info@westlinkcommercialcleaning.com.au
Why Choose Westlink Commercial for Kitchen Duct Cleaning
Choosing who cleans your commercial kitchen duct system is a decision with real consequences. You need a provider who actually cleans the ducts, not just the canopy, and who gives you the documentation to prove it. Here is why Westlink Commercial is that provider.
Rooftop-to-Cooktop Full System Cleaning
We clean the entire commercial kitchen duct system, not just the canopy, not just the filters, not just the sections that are easy to reach. From the rooftop exhaust fan down through every vertical riser, horizontal run, plenum, connection point, and inline fan to the canopy.
Before-and-After Photo Documentation
Every job is photographed before and after cleaning duct interiors, plenum surfaces, fan blades, access hatches, and all cleaned components. This visual documentation gives you indisputable proof of the work completed and the condition of your system.
Certified, Insured, and Police-Checked Team
Westlink Commercial is ISO certified with full public liability insurance coverage. Every technician is police-checked and background-verified. We never use subcontractors; every person working in your kitchen and on your roof is a direct Westlink Commercial employee. You know exactly who is in your facility at all times.
After-Hours and 24/7 Scheduling
Your commercial kitchen must be cool and offline for safe, effective duct cleaning. We offer evening, overnight, and weekend scheduling as standard. We coordinate directly with your kitchen manager or facility manager to find the window that causes zero disruption to your service hours. Your commercial kitchen is clean, certified, and ready for service
Full Satisfaction
We do not issue a compliance certificate until every component of your commercial kitchen duct system is properly cleaned and meets the AS 1851 standard. If any section does not meet our quality benchmarks or your expectations during the final walkthrough, we address it before we leave your site.
Equipment and Solutions We Use for Kitchen Duck Cleaning
We use specialised equipment and cleaning products designed specifically for internal ductwork cleaning. Standard kitchen cleaning equipment cannot effectively clean inside duct systems; the enclosed spaces, varying duct sizes, and hardened carbonised grease require purpose-built tools.
Equipment:
- Rotary duct cleaning brushes in multiple sizes to match different duct dimensions and configurations
- High-pressure hot water unit for flushing loosened grease from duct walls after chemical treatment
- Commercial steam cleaner for high-temperature degreasing of heavily contaminated surfaces
- Wet/dry industrial vacuum for extracting grease waste and debris from duct interiors
- Access panel cutting and installation tools for creating access points in duct systems that lack sufficient hatches
- Hinge fan installation kit for safely accessing and cleaning rooftop exhaust fan units
Cleaning Solutions:
- Commercial-grade alkaline degreasers formulated to break down carbonised grease deposits
- Eco-friendly, biodegradable degreasing agents are effective against heavy grease without environmental harm
- Food-safe cleaning chemicals are safe for use in food preparation environments with no toxic residue
- pH-balanced cleaning agents protect duct surfaces and coatings during the cleaning process
Testimonial or Client Reviews & Success Stories
Our clients’ success is the best proof of our quality. We’re proud to be the trusted cleaning company for hundreds of offices across Australia / Sydney..
Frequently Asked Questions
What is the difference between kitchen canopy cleaning and duct cleaning?
Kitchen canopy cleaning covers the visible hood, filters, and immediately attached components. Kitchen duct cleaning covers the internal ductwork, plenum, risers, connections, and exhaust fans, the hidden components where grease accumulates most dangerously.
Can dirty ducts void my fire insurance?
Yes. Most commercial insurance policies require documented evidence that the complete exhaust system, including ductwork, has been maintained. If a fire occurs and your records only show canopy cleaning without documented duct cleaning, your insurer can deny the claim.
Do you install access hatches for duct cleaning?
Yes. If your duct system lacks sufficient access points to reach every section, we cut and install new access panels before cleaning begins. This ensures every metre of ductwork is properly cleaned, and no section is skipped because it was inaccessible.
How often should commercial kitchen ducts be cleaned?
It depends on daily cooking hours. Light-use kitchens (2–6 hours/day) need annual duct cleaning, moderate-use kitchens (6–12 hours/day) every 6 months, and heavy-use kitchens (12+ hours/day) every 3 months. Solid fuel and charcoal cooking require monthly duct cleaning.
Who is responsible for kitchen duct cleaning in a multi-tenant building?
Responsibility is typically split. The tenant maintains the canopy, filters, and in-tenancy ductwork. The building owner or strata body maintains communal ducts, shared risers, and the rooftop exhaust fan. Both parties must coordinate to ensure the full system is compliant.
How long does commercial kitchen duct cleaning take?
It varies based on the duct system size, layout complexity, number of access points, and grease buildup severity. A standard commercial kitchen duct system typically takes half a day to a full day. We provide a time estimate after our initial system inspection.
Do you provide a compliance certificate after duct cleaning?
Yes. Every service includes a written AS 1851 compliance certificate, a detailed service report, and before-and-after photo documentation. This documentation is ready to present to your insurer, council inspector, or auditor.
Can you clean ducts outside business hours?
Yes. We offer evening, overnight, and weekend scheduling as standard. Your kitchen needs to be cool and offline for safe duct cleaning, so we always work outside your operating hours to ensure zero disruption.
Have more questions?
Call 0416 053 815 and we’ll explain everything.
Protect & Clean Your Kitchen Duct From the Inside Out
The parts of your commercial kitchen exhaust system you cannot see are the parts that pose the greatest fire risk. If your ducts have not been professionally cleaned and documented, your system is not compliant, and your business is exposed to fire risk, insurance denial, and legal liability.
Our certified technicians are ready to inspect your full duct system and recommend the right cleaning schedule for your kitchen’s usage level and cooking methods.
We provide a free, no-obligation on-site inspection and quote.
Request Your Free Quote → https://westlinkcommercialcleaning.com.au/get-a-quote/
Phone: +61 416 053 815
Email: info@westlinkcommercialcleaning.com.au