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Commercial Kitchen and Exhaust System Cleaning Risk Assessment

Commercial Kitchen and Exhaust System Cleaning Risk Assessment

  • • 100% Compliant with Australian WHS Acts & Regulations
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Commercial Kitchen and Exhaust System Cleaning Risk Assessment

Product Overview

Identify and control organisational risks associated with Commercial Kitchen and Exhaust System Cleaning through a structured, management-level WHS Risk Management framework. This Risk Assessment supports compliance with the WHS Act, strengthens Due Diligence obligations, and helps protect your business from operational and legal liability exposures.

Risk Categories & Hazards Covered

This document assesses risks and outlines management controls for:

  • WHS Governance, Legal Compliance & Duty of Care: Assessment of board, owner and senior management responsibilities, consultation arrangements, and systems to demonstrate ongoing compliance and due diligence for kitchen and exhaust cleaning operations.
  • Contractor, Subcontractor & Labour Hire Management: Management of pre-qualification, scope definition, supervision, and performance monitoring of external providers engaged in commercial kitchen and exhaust system cleaning.
  • Workforce Competency, Licensing & Training Systems: Evaluation of competency frameworks, licences, induction, refresher training and verification of competency for technicians working on exhaust hoods, ducts, fans and associated plant.
  • Safe Access, Egress & Traffic Management in Client Premises: Controls for accessing commercial kitchens and rooftops, managing interaction with venue staff and the public, and maintaining safe walkways, exclusion zones and vehicle movements.
  • Plant, Equipment & Maintenance Systems: Assessment of selection, inspection, testing and maintenance of pressure cleaners, scrapers, vacuums, access equipment and other tools used in exhaust and canopy cleaning.
  • Hazardous Chemicals, Grease Contamination & Biological Agents: Management of degreasers and cleaning agents, storage and labelling, exposure to built-up grease, mould and biological contaminants, and appropriate PPE and hygiene controls.
  • Electrical, Gas & Energy Isolation Management: Protocols for lockout/tagout, isolating kitchen appliances, fans and extraction systems, and coordinating with clients on gas and electrical shutdown requirements.
  • Work at Height, Roof Access & Above-Ceiling Exhaust Systems: Risk controls for accessing roofs, ceiling spaces and elevated ductwork, including fall prevention, edge protection, ladder systems and elevated work platforms.
  • Confined, Enclosed & Poorly Ventilated Spaces: Assessment of entry into ducts, tanks and restricted areas, atmospheric monitoring, ventilation, rescue planning and confined space permit systems where applicable.
  • Manual Handling, Ergonomics & Work Organisation: Management of repetitive tasks, awkward postures, lifting and handling of equipment and duct sections, and job design to minimise musculoskeletal injury risks.
  • Fire, Explosion & Hot Surface Risk Management: Controls for ignition sources around grease-laden surfaces, hot appliances, flues and fans, including cleaning sequencing, fire watch arrangements and emergency shutdown procedures.
  • Hygiene, Food Safety Interface & Environmental Management: Integration of WHS controls with food safety requirements, contamination prevention, waste and wastewater management, and environmentally responsible chemical use.
  • Fatigue, Scheduling, Remote & After-Hours Work: Assessment of rostering, night work in operating venues, travel to remote client sites, lone work arrangements and fatigue management systems.
  • Incident Reporting, Emergency Preparedness & First Aid: Systems for hazard reporting, incident investigation, spill response, fire and evacuation coordination with clients, and provision of first aid resources.
  • Information Management, Documentation & Records: Governance of risk assessments, procedures, permits, training records, maintenance logs and client reports to provide evidence of compliance and continuous improvement.

Who is this for?

This Risk Assessment is designed for Business Owners, General Managers, Safety Managers and Compliance Officers responsible for planning, overseeing and verifying the safety of Commercial Kitchen and Exhaust System Cleaning operations across their organisation or contractor network.

Hazards & Risks Covered

Hazard Risk Description
1. WHS Governance, Legal Compliance & Duty of Care
  • • Lack of documented WHS management system for commercial kitchen and exhaust system cleaning operations
  • • Failure to identify and comply with WHS Act 2011, WHS Regulations, Codes of Practice and relevant Australian Standards (e.g. AS 1851, AS/NZS 3666, AS/NZS 4801 / ISO 45001 equivalent systems)
  • • Unclear WHS roles, responsibilities and accountability for managers, supervisors and workers
  • • Inadequate consultation with workers, clients and contractors about WHS issues in kitchen cleaning activities
  • • Insufficient monitoring, review and continual improvement of WHS performance
  • • Poor integration of WHS requirements into contracts, tenders and service-level agreements with clients and subcontractors
2. Contractor, Subcontractor & Labour Hire Management
  • • Use of subcontractors or labour hire workers without adequate WHS vetting or competency verification
  • • Inconsistent safety standards between principal contractor, cleaning business and host clients
  • • Poor communication of site-specific risks (e.g. hot surfaces, gas isolations, allergen contamination, after-hours access) to external workers
  • • Lack of clarity regarding who controls plant, equipment, isolation points and emergency procedures
  • • Inadequate supervision of subcontractor activities in high-risk areas such as roofs, plant rooms and confined ceiling spaces
  • • Failure of contractors to report incidents, near misses or damage to kitchen infrastructure or exhaust systems
3. Workforce Competency, Licensing & Training Systems
  • • Inadequate training in hazards unique to commercial kitchen environments (e.g. hot oil, sharp equipment, gas systems, slippery floors, biological contaminants)
  • • Workers not competent to perform tasks such as enclosed kitchen hood cleaning, exhaust duct access, bulk grease tank cleaning or deep freezer cleaning
  • • Failure to confirm required licences or certifications for specialised tasks (e.g. EWP operation, high-risk work, electrical work performed by others, confined space work if applicable)
  • • Lack of refresher training leading to skill fade and unsafe short-cuts
  • • No structured induction covering client policies, after-hours work, food safety considerations and allergen control
  • • Limited supervisory capability to identify unsafe practices in complex cleaning jobs
4. Safe Access, Egress & Traffic Management in Client Premises
  • • Congested commercial kitchens, food courts and loading areas causing trip, slip and impact hazards
  • • Uncontrolled interaction between cleaners, client staff, delivery drivers and public, particularly during food court clean-up and outdoor grill areas
  • • Blocked, poorly lit or poorly signed emergency exits and evacuation routes during after-hours cleaning
  • • Inadequate systems to manage access to roofs, plant platforms, ceiling voids and restricted spaces for exhaust system inspection and cleaning
  • • Manual handling risks from moving equipment, bulk grease tanks, waste containers and ladders through narrow corridors and cool rooms
  • • Poor control of public access around wet, greasy or chemically treated floor surfaces
5. Plant, Equipment & Maintenance Systems
  • • Failure of high-pressure washers, pumps, extraction devices, vacuums or rotary scrubbers due to poor maintenance
  • • Uncontrolled movement or collapse of portable equipment such as ladders, mobile platforms and small scaffolds
  • • Inadequate guarding of moving parts on mechanical cleaning equipment
  • • Damaged or untested RCDs, extension leads and portable electrical equipment used in wet, greasy environments
  • • Unverified integrity of tools used in explosive grease-laden atmospheres (e.g. risk of ignition in confined or poorly ventilated ducts)
  • • Use of unsuitable tools or cleaning nozzles in bulk grease tanks, grease traps and ventilation ducts leading to splashing, aerosol generation and ergonomic strain
6. Hazardous Chemicals, Grease Contamination & Biological Agents
  • • Exposure to corrosive, irritant or sensitising cleaning chemicals used on ovens, grills, refrigerators, freezers, exhaust hoods and floors
  • • Lack of up-to-date Safety Data Sheets (SDS) and inadequate chemical risk assessments for degreasers, sanitisers and descalers
  • • Incompatible chemical storage, decanting and mixing practices leading to release of toxic gases or reactions in confined kitchen spaces
  • • Aerosolisation of grease, mould, bacteria and food residues from exhaust systems, grease traps and bulk grease tanks
  • • Uncontrolled chemical and grease run-off into drains, grease traps or stormwater systems causing environmental and health risks
  • • Inadequate hand hygiene and decontamination practices leading to cross-contamination of food preparation surfaces
7. Electrical, Gas & Energy Isolation Management
  • • Contact with live electrical components when cleaning around commercial ovens, cooktops, rangehoods, deep fryers, refrigeration units and exhaust fans
  • • Uncontrolled activation of gas appliances, exhaust fans or automated systems during cleaning
  • • Failure to isolate power to exhaust fan motors prior to working within or near fan housings and ductwork
  • • Inadequate coordination with client maintenance personnel regarding lock-out/tag-out of plant and shared isolation points
  • • Water and chemical ingress into electrical outlets, control panels and appliance housings during pressure cleaning or wet wiping
  • • Resetting of isolations or controls by client staff during after-hours works
8. Work at Height, Roof Access & Above-Ceiling Exhaust Systems
  • • Falls from height when accessing roof-mounted exhaust fans, ventilation hoods or ductwork over cooklines and food courts
  • • Falls through fragile roofing materials or ceiling panels when tracking exhaust systems above kitchen ceilings
  • • Use of unsuitable ladders or makeshift platforms to access high-level hoods, ductwork and bulk grease tanks
  • • Lack of certified anchor points, guardrails or walkways for regular exhaust system maintenance routes
  • • Inadequate planning for rescue in the event of a fall or worker incapacitation at height
  • • Weather exposure, wind loading and slippery roof surfaces during outdoor grill hood and fan cleaning
9. Confined, Enclosed & Poorly Ventilated Spaces in Exhaust and Tank Systems
  • • Entry into enclosed kitchen hood plenums, vertical exhaust risers, bulk grease tanks or grease traps with limited access and ventilation
  • • Accumulation of flammable vapours, cleaning chemical fumes or oxygen-deficient atmospheres in enclosed ducting or tanks
  • • Difficulty in extracting workers quickly in the event of medical emergency or exposure inside ducts, tanks or pits
  • • Misclassification of enclosed or restricted areas, resulting in work being carried out without appropriate controls or permits
  • • Biological contaminants, mould and bacterial growth in unventilated spaces leading to respiratory irritation
  • • Limited visibility and awkward body positions within enclosures increasing musculoskeletal and entrapment risks
10. Manual Handling, Ergonomics & Work Organisation
  • • Repetitive, forceful cleaning motions on vertical and overhead surfaces such as cooktops, rangehoods and ventilation hoods
  • • Awkward postures when working inside commercial ovens, refrigerators, freezers and under benches
  • • Lifting and carrying of heavy or awkward equipment, bulk grease containers and waste drums through kitchens and loading docks
  • • Sustained static postures in cramped spaces behind or between appliances
  • • Inadequate staffing levels or time pressures leading to rushing and unsafe manual handling practices
  • • Lack of systems to rotate tasks and manage cumulative musculoskeletal load
11. Fire, Explosion & Hot Surface Risk Management
  • • Ignition of residual grease in exhaust hoods, ducts and bulk grease tanks during hot water or steam cleaning
  • • Working on or near hot cooktops, ovens, grills and fryers in insufficiently cooled-down conditions
  • • Inadequate maintenance of client exhaust systems leading to concealed grease build-up and heightened fire loading
  • • Use of inappropriate ignition sources (e.g. grinding, cutting, smoking) near grease-laden surfaces and vapours
  • • Failure to coordinate with client fire protection systems, including automatic suppression in hoods and alarm isolations
  • • Inadequate emergency response planning for fire or thermal burns during cleaning activities
12. Hygiene, Food Safety Interface & Environmental Management
  • • Cross-contamination of food contact surfaces from dirty tools, footwear, hoses and PPE
  • • Inadequate separation of cleaning processes from food preparation, storage and service activities
  • • Incorrect management of grease and chemical waste leading to odours, pest attraction and pollution
  • • Failure to align cleaning methods with client food safety plans (e.g. HACCP, ISO 22000 systems)
  • • Residual chemical films on surfaces that may contaminate food or alter equipment performance
  • • Poor reinstatement of kitchen areas after deep cleaning, leading to hygiene non-conformances during inspections
13. Fatigue, Scheduling, Remote & After-Hours Work
  • • Excessive working hours and night shifts to accommodate kitchen operating schedules leading to fatigue-related errors
  • • Compressed schedules for food court clean-up and deep cleaning between trading periods causing rushing and risk-taking
  • • Working alone or in small teams in remote plant rooms, roofs or back-of-house areas without effective communication systems
  • • Reduced availability of supervision, first aid and emergency response during night or early morning shifts
  • • Long travel distances between multiple sites in one shift increasing fatigue and driving risks
  • • Inadequate planning for remote or regional work where emergency and medical support is limited
14. Incident Reporting, Emergency Preparedness & First Aid
  • • Delayed or incomplete response to incidents involving chemical exposure, burns, cuts, sprains, falls or electrical shock
  • • Lack of clear incident reporting procedures for workers operating across multiple client sites
  • • Insufficient availability of first aid equipment and trained first aiders during after-hours or remote works
  • • Poor coordination with client emergency procedures, warden systems and evacuation routes
  • • Under-reporting of near misses and property damage, resulting in missed opportunities for systemic improvement
  • • Inadequate post-incident investigation and corrective action processes
15. Information Management, Documentation & Records
  • • Out-of-date procedures, SWMS and risk assessments being used on site
  • • Loss of critical records relating to training, equipment maintenance, permits and waste disposal
  • • Inadequate documentation of exhaust system cleaning frequencies and verification for insurance or regulatory requirements
  • • Poor version control leading to conflicting instructions between head office and site documents
  • • Insufficient capture of site-specific variations and client requirements within standard documentation
  • • Lack of accessible documentation for workers in the field, particularly for remote and after-hours work
16. Psychosocial Risks, Consultation & Safety Culture
  • • High workload, time pressure and client expectations leading to stress and reduced attention to safety
  • • Poor communication or conflict between cleaners, client staff and supervisors, especially during disruptive deep cleaning activities
  • • Lack of worker input into job planning and risk control decisions for complex cleaning tasks
  • • Bullying, harassment or discrimination towards cleaning staff working in back-of-house and late-night environments
  • • Workers feeling unable to raise safety concerns or stop work when conditions change or become unsafe
  • • Job insecurity for subcontractors affecting willingness to report incidents or hazards

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Legislation & References

This document was researched and developed to align with:

  • Work Health and Safety Act 2011
  • Work Health and Safety Regulations 2017
  • AS/NZS ISO 31000:2018: Risk management — Guidelines
  • Model Code of Practice – How to Manage Work Health and Safety Risks: Guidance on risk management principles and processes.
  • Model Code of Practice – Managing the Work Environment and Facilities: Requirements for safe access, egress, amenities and work environment conditions.
  • Model Code of Practice – Managing Risks of Hazardous Chemicals in the Workplace: Controls for selection, storage, handling and use of chemical cleaning agents.
  • AS/NZS 4801 / ISO 45001: Occupational health and safety management systems — Requirements for systematic WHS governance and continual improvement.
  • AS/NZS 1891 Series: Industrial fall-arrest systems and devices — Requirements for harnesses, lanyards and anchorage when working at height.
  • AS 1657: Fixed platforms, walkways, stairways and ladders — Design and installation requirements for safe roof and plant access.
  • AS/NZS 1715 & 1716: Selection, use and maintenance of respiratory protective equipment and performance requirements for RPE.
  • AS 1851: Routine service of fire protection systems and equipment — Relevant to coordination with client fire safety systems during cleaning activities.
Standard Risk Assessment Features (Click to Expand)
  • Comprehensive hazard identification for all activities
  • Risk rating matrix with likelihood and consequence analysis
  • Existing control measures evaluation
  • Residual risk assessment after controls
  • Hierarchy of controls recommendations
  • Action priority rankings
  • Review and monitoring requirements
  • Consultation and communication records
  • Legal compliance references
  • Sign-off and approval sections

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