Professional hood cleaning should address the complete kitchen exhaust path, not just the stainless-steel canopy above the cook line. For an Ontario restaurant or food-service operator, that usually means confirming the scope for the hood, filters, plenum, accessible ducts, exhaust fan, and grease containment before approving a quote.
This guide explains what a complete service should cover, how to choose a practical cleaning interval, what Ontario’s Fire Code says about NFPA 96, and how to prepare for and verify the work.
What Professional Hood Cleaning Should Include
Commercial hood cleaning is the professional removal of grease and residue from the kitchen exhaust system. Its purpose is to reduce combustible buildup, support airflow, and help maintain safer operating conditions. It is broader than wiping the visible hood or washing removable filters.
| System component | What to confirm in the quote |
|---|---|
| Hood or canopy | Degreasing of interior surfaces, edges, seams, and grease collection areas. |
| Filters | Removal and deep cleaning, or a separately priced filter cleaning and exchange service. |
| Plenum | Cleaning behind the filters where grease and vapors collect before entering the ductwork. |
| Ductwork | Access to relevant horizontal and vertical sections, with inaccessible areas clearly identified. |
| Exhaust fan | Cleaning of blades and housing, plus notes about visible belt or mechanical defects. |
| Grease containment | Protection and cleanup of rooftop or other areas where grease and wash water could collect. |
The exact scope depends on the system design and available access. For a closer look at system components, cleaning methods, and documentation, read this practical guide to hood and duct cleaning.
Why Full-System Scope Matters
Grease-laden vapors travel from cooking equipment through the hood, filters, plenum, ducts, and exhaust fan. Cleaning only the visible canopy can leave residue in sections staff cannot safely inspect or reach.
A complete service can support fire-risk reduction, more consistent ventilation, improved odor control, and better inspection readiness. These are risk-management benefits, not guarantees that a kitchen will pass every inspection or avoid every equipment problem.
Full-system cleaning can also reveal a damaged access panel, worn fan belt, excessive grease at the fan, or poor containment. Cleaning and repair are different tasks, so recommended repairs should be documented and quoted separately unless the service agreement says otherwise.
Daily Staff Cleaning vs. Periodic Professional Service
Both types of cleaning belong in a commercial kitchen maintenance plan. Staff can handle routine wipe-downs and filter care according to kitchen procedures, while professional technicians address the exhaust path and areas requiring specialized equipment, containment, access, or rooftop work.
| Task | What it can address | What it cannot replace |
|---|---|---|
| Daily or frequent staff cleaning | Visible grease, spills, cooking equipment surfaces, and routine filter care when appropriate. | Deep cleaning inside ducts, plenums, fan assemblies, and difficult access areas. |
| Periodic professional service | System-wide degreasing, exhaust components, containment, documentation, and observed maintenance issues. | Daily housekeeping and immediate cleanup of new grease deposits. |
A quote limited to the visible hood may suit a narrowly defined touch-up, but it should not be described as full kitchen exhaust cleaning unless hidden components are included or their exclusion is explicit.
How Often Should a Commercial Kitchen Schedule Hood Cleaning?
There is no single interval for every Ontario kitchen. Cooking volume, menu, equipment, operating hours, grease accumulation, production changes, insurer expectations, and requirements applied by the relevant authority can all affect the schedule.
As practical planning ranges:
- High-volume kitchens: approximately every one to three months.
- Moderate-volume kitchens: approximately every three to six months.
- Light-duty kitchens: approximately every six to twelve months.
These ranges are planning guidance, not a universal legal rule. Frequent frying, grilling, or charbroiling may require more frequent service than a low-volume operation. Recheck the interval after a menu change, a major increase in service, visible grease accumulation, smoke-capture problems, or an inspection concern.
Ontario operators can use this Ontario hood cleaning guide to coordinate service intervals, inspection records, and access planning. Also confirm expectations with the authority having jurisdiction, insurer, and qualified service provider.
Ontario Fire Code and NFPA 96: What Operators Should Know
Ontario’s Fire Code states that commercial cooking equipment must have exhaust and fire-protection systems conforming to NFPA 96, “Ventilation Control and Fire Protection of Commercial Cooking Operations.” You can verify that requirement in Ontario Regulation 388/97.
This does not give every kitchen an identical cleaning schedule. System design, cooking operation, inspection expectations, insurance conditions, and local interpretation still matter. Treat NFPA 96 as a key compliance framework, then confirm the requirements that apply to your premises.
When comparing providers, ask what documentation is supplied after service and whether the team can explain which components were cleaned, which areas were inaccessible, and which repairs remain outstanding. Robinhood Cleaners states that its professionals are NFPA 96 certified and that the business is WSIB insured. Request the records relevant to your own requirements.
How Professional Hood Cleaning Works
A well-planned service follows a controlled sequence. Details vary by system, soil load, surface, and access, but a typical workflow includes:
- Pre-inspection: Review the hood, filters, access panels, duct path, fan, utilities, and grease pathways.
- Equipment protection: Cover cooking equipment, food-contact areas, floors, and nearby surfaces, and address shutdown requirements.
- Filter handling: Remove filters for cleaning or exchange and keep them organized for reinstallation.
- Hood and plenum degreasing: Use suitable products and agitation to remove deposits.
- Duct cleaning: Clean accessible horizontal and vertical sections using methods suited to the residue and construction.
- Exhaust fan service: Clean blades and housing. Belts, hinges, bearings, and other visible conditions may be checked, but repair is not automatically included.
- Grease containment: Control runoff and removed grease so surrounding surfaces and rooftops are protected.
- Reassembly: Replace filters and components, remove protection, and rinse or clean the work area.
- Documentation: Provide the agreed service record, tags, photographs, or other documentation, with notes about defects or exclusions.
Questions to Ask About Methods and Access
Methods should match the surface, soil load, equipment, and access conditions. Ask whether the provider expects to use manual agitation, degreasing products, hot-water pressure, steam, mechanical brushing, or a combination. The most aggressive method is not automatically the best if it could damage surfaces, seals, electrical components, or rooftop materials.
- Which access panels and duct sections will be opened or cleaned?
- How will equipment, floors, walls, and food-contact surfaces be protected?
- How will wastewater and grease be contained and removed?
- Is safe rooftop access available, and who will arrange it?
- Will the fan be opened, cleaned, and checked for visible belt or hinge problems?
- Which areas are excluded because they are sealed, inaccessible, or outside the quoted scope?
How to Prepare the Kitchen Before Service
Preparation reduces delays and helps the crew clean thoroughly. Schedule work outside active service whenever possible, then confirm the arrival window and expected shutdown period.
- Share the hood layout, access-panel locations, fan location, and last service date.
- Explain the menu, cooking volume, operating hours, and areas with unusually heavy grease.
- Remove food, utensils, and movable items from the work zone.
- Confirm access to power, water, the roof, and locked service areas.
- Tell staff which cooking equipment or ventilation systems must remain off.
- Agree in writing on filter exchange, fan belt work, appliance cleaning, or grease trap service if requested.
Related Services to Consider
Hood cleaning may form part of a wider maintenance plan, but related services are not automatically included in every appointment. Confirm each item separately.
- Filter cleaning and exchange: Useful when filters are damaged, heavily loaded, slow to dry, or needed immediately for replacement.
- Exhaust fan inspection or fan belt replacement: Relevant when airflow is weak, the fan is noisy, or a belt shows cracking, glazing, or slippage.
- Duct cleaning: Important when the quote does not already include the complete accessible duct path.
- Commercial appliance cleaning: Ovens, grills, fryers, and refrigerators may need separate deep cleaning. See this overview of commercial appliance cleaning.
- Grease trap service: A separate plumbing-related task addressing grease in the drainage system, not grease inside the exhaust system.
If you are deciding which equipment tasks belong with a specialist rather than your own team, this comparison of equipment cleaning services and in-house work can help.
How to Verify the Work After Cleaning
Before the crew leaves, compare the completed work with the written scope. A clean-looking canopy alone does not prove that the full service was completed.
- Confirm that the hood, filters, plenum, accessible ducts, and exhaust fan were addressed as quoted.
- Check that filters are correctly reinstalled and access panels are closed and secure.
- Inspect floors, equipment, walls, and rooftop areas for leftover grease, water, or slip hazards.
- Ask whether fan belt, hinge, bearing, access, or containment issues were found.
- Obtain the service date, service tag, invoice, report, and agreed photographs or certificate.
- Record inaccessible areas, recommended repairs, and the proposed next service date.
If repairs or inaccessible sections remain, do not treat the cleaning record as proof that every part of the system is in ideal condition. Keep the written notes and arrange follow-up with the appropriate qualified professional.
Hood Cleaning Booking Checklist
- What type of kitchen, menu, equipment, and cooking volume do we operate?
- When was the exhaust system last professionally cleaned?
- Does the quote include the hood, filters, plenum, ducts, fan, and grease containment?
- Which areas or repairs are excluded?
- What access, shutdown, water, power, and rooftop arrangements are required?
- What protection and runoff-control measures will be used?
- Are filter exchange, fan belt replacement, appliance cleaning, or grease trap service separate line items?
- What service tags, photographs, reports, or certificates will be provided?
- What interval does the provider recommend, and what conditions support that recommendation?
Frequently Asked Questions
Is cleaning the visible kitchen hood enough?
No. The visible canopy is only one component. Complete commercial hood cleaning should address filters, the plenum, accessible ducts, the exhaust fan, and grease containment when those components are part of the system and agreed scope.
Can restaurant staff clean the exhaust ducts themselves?
Staff can manage routine surface cleaning and housekeeping, but duct cleaning may involve elevated access, specialized equipment, chemical handling, runoff control, and shutdown procedures. Use qualified professionals for system-wide work.
What should be included in a commercial hood cleaning quote?
The quote should identify each component, planned method, access assumptions, equipment protection, cleanup, documentation, exclusions, and separately priced repairs or related services.
How should an Ontario restaurant document hood cleaning?
Keep the invoice, service date, service tag, report, photographs or certificate if supplied, component scope, noted defects, inaccessible areas, and recommended next interval.
What should operators do if the hood cleaning is overdue?
Arrange an assessment promptly and tell the provider how long service has been overdue and what cooking the kitchen performs. Ask for the full-system scope and any immediate safety or repair concerns.
Are filter exchange and fan belt replacement included in every service?
No. Inclusion depends on the written scope. Confirm whether filters will be cleaned or exchanged and whether belts will only be inspected or actually replaced.
Conclusion: Choose Complete Scope and Documented Service
The best hood cleaning decision is not based on how polished the canopy looks. Choose a service that clearly explains what happens to the hood, filters, plenum, ducts, exhaust fan, and grease containment, then set the interval around your cooking conditions and applicable Ontario requirements.
Prepare the kitchen carefully, ask about access and exclusions, and verify the completed work with written records. Daily housekeeping remains important, but it works alongside, rather than instead of, periodic professional exhaust cleaning.
Robinhood Cleaners serves Ontario with commercial kitchen exhaust cleaning and related services, including filter cleaning and exchange, commercial appliance cleaning, grease trap cleaning, and 24/7 scheduling.