Commercial kitchen hood and duct cleaning should cover more than the visible stainless-steel canopy. For most Ontario restaurants and food-service operations, a complete service review should address the hood, filters, plenum, accessible ductwork, exhaust fan, and related grease-control points. Cleaning only the hood surface can leave combustible grease deeper in the exhaust path.
The practical buying decision is not simply which provider has the lowest quote. It is whether the quoted work covers your complete exhaust system, fits your operating schedule, follows appropriate safety procedures, and produces records you can retain for inspections, management reviews, and insurance discussions.
Quick summary
- Ask for full-system scope: hood canopy, filters, plenum, horizontal and vertical ducts, and exhaust fan.
- Ontario Regulation 213/07 requires applicable commercial cooking exhaust and fire-protection systems to be maintained in accordance with NFPA 96.
- Cleaning frequency depends on cooking volume, grease-producing appliances, operating hours, and observed buildup. There is no single interval for every kitchen.
- Request a service record, photographs where available, areas cleaned, deficiencies noted, and follow-up recommendations.
- Keep filter exchange, fan-belt work, appliance cleaning, and grease-trap service distinct even when scheduled during the same visit.
What commercial kitchen hood and duct cleaning includes
A commercial exhaust system captures heat, smoke, vapour, and airborne grease above the cooking line. Those contaminants travel through a connected path, so the condition of one component can affect the performance and cleanliness of the others.
- Hood canopy: The visible hood above the cooking appliances, including interior surfaces where grease can accumulate.
- Filters: Baffle filters that help separate grease from the moving exhaust stream. They may need deep cleaning or exchange.
- Plenum: The space behind or above the filters where grease and residue can collect.
- Ductwork: Horizontal and vertical sections that carry exhaust toward the exterior discharge point.
- Exhaust fan: The fan, housing, blades, and nearby grease-collection areas that move air out of the building.
- Access and containment points: Panels, roof-area protections, and work-area controls needed to reach components and manage runoff.
A provider should explain which components are included, which are inaccessible, and which require separate work. Review the commercial exhaust duct cleaning process when comparing how providers address hoods, ducts, fans, filters, and documentation.
A surface wipe-down may improve the canopy’s appearance, but it does not establish that grease has been removed from the plenum, duct interiors, or exhaust fan. Ask for the scope in writing before approving the work.
Compare the service scope before you book
| Service | What it addresses | What to confirm |
|---|---|---|
| Surface hood cleaning | Visible hood surfaces and sometimes nearby stainless steel | Whether filters, plenum, ducts, and fan are excluded |
| Full exhaust-system cleaning | Hood, filters, plenum, accessible ductwork, and exhaust fan | Access points, areas reached, grease-removal standard, and records supplied |
| Filter cleaning or exchange | Removal of grease from reusable filters or replacement with suitable filters | Whether cleaning, drying, tagging, and reinstallation are included |
| Exhaust fan service | Grease removal from fan blades and housing, with a visual condition check | Whether belt or mechanical work is separate and how roof-area cleanup is handled |
| Related kitchen maintenance | Ovens, grills, refrigerators, grease traps, or exterior areas | Whether it is included in the quote or scheduled as an additional service |
Full-system cleaning does not automatically include every maintenance task in the kitchen. Commercial appliance cleaning and grease-trap cleaning address different sources of grease and contamination. They can be coordinated with exhaust work, but should appear as separate line items so the manager knows exactly what has been completed.
Routine commercial kitchen exhaust cleaning can support grease removal, airflow maintenance, and related equipment care. However, cleaning alone may not correct every ventilation, appliance, or building issue.
Ontario safety and NFPA 96 context
Ontario Regulation 213/07 states that a cooking operation producing smoke or grease-laden vapours must have an exhaust system and fire-protection system maintained in accordance with NFPA 96. Review the requirement in the official Ontario Fire Code regulation.
This requirement explains why commercial kitchen hood and duct cleaning is a maintenance responsibility, not merely an appearance service. It does not mean every provider is officially certified by NFPA, and it does not guarantee that a particular cleaning will pass an inspection. Ask the provider to explain the procedures and documentation used to support NFPA 96-compliant maintenance.
Keep marketing claims clear when comparing providers. A provider may offer cleaning performed according to NFPA 96 procedures without presenting official certification for the company or each technician. Request evidence of technician training, insurance, service records, and the actual areas covered.
Why routine cleaning matters
Grease deposits inside a hood and exhaust path create combustible buildup. Removing that residue helps reduce the amount of fuel available in the system and supports a cleaner, more effective ventilation path. It is a risk-reduction measure, not a guarantee against fire.
Clean components can also make it easier for the exhaust system to move smoke, heat, and odours away from the cookline. If airflow appears restricted, cleaning may not be the only issue. Belts, fan condition, make-up air, duct design, and other building or equipment factors may need separate assessment.
Review your service timing if you notice visible grease beyond normal daily cleaning, persistent smoke or odours, recurring filter blockage, unusual fan noise, or worsening heat around the cooking line. These signs do not identify a specific fault, but they justify asking a qualified provider to inspect the system and reconsider the maintenance schedule.
What to expect during a professional visit
A thorough visit should begin with a discussion of the system layout, access points, cooking equipment, operating hours, and areas included in the quote. The work plan should also address protection for cooking equipment, floors, walls, and nearby food-contact areas.
- Pre-service review: Confirm the exhaust route, access requirements, work area, water and power needs, and known concerns.
- Preparation and protection: Cover equipment and nearby surfaces and arrange controls for water, debris, and degreaser residue.
- Component access: Remove filters and open access panels where appropriate.
- Degreasing and residue removal: Use suitable tools and cleaning products for the buildup and component being treated.
- Fan and filter work: Clean or service the exhaust fan and filters according to the agreed scope. Identify belt replacement separately.
- Reassembly and cleanup: Return filters and panels, clean the work area, and finish visible stainless surfaces as agreed.
- Verification and records: Record the service, note limitations or deficiencies, and supply photographs or other included documentation.
Ask whether the provider can explain any sections that could not be reached and whether follow-up access work is recommended. You can also review questions about safely cleaning commercial kitchen ducts before requesting a quote.
How often should you schedule hood and duct cleaning?
There is no universal schedule for every Ontario kitchen. A high-volume quick-service restaurant with fryers may accumulate grease faster than a lower-volume operation with limited cooking. Operating hours, appliance type, menu, solid-fuel cooking where applicable, seasonal demand, and previous findings all matter.
- Cooking volume: More meals and longer operating hours generally create a heavier exhaust load.
- Grease-producing equipment: Fryers, charbroilers, grills, and similar appliances can increase residue.
- Observed buildup: Rapid filter blockage or visible grease indicates that the schedule deserves review.
- Seasonal peaks: Catering periods, holidays, patios, or banquets can temporarily change the grease load.
- Inspection and insurance requirements: Align the maintenance plan with applicable requirements and written expectations from your insurer, landlord, or fire-safety authority.
Do not treat a provider’s general interval as an automatic legal requirement. Ask for a recommendation tied to your appliances, hours, previous findings, and documentation needs.
Coordinate related kitchen maintenance without confusing the scope
Managers can often reduce disruption by planning compatible services during one overnight or low-production window. These may include hood and duct cleaning, filter exchange, exhaust-fan inspection, commercial appliance cleaning, or grease-trap service.
Bundling the timing does not make the services interchangeable. Filter work focuses on airflow components, appliance cleaning focuses on cooking and refrigeration equipment, and grease-trap service addresses the plumbing system. Confirm each task, responsible technician, and record supplied.
A technician may identify belt wear or a tension concern during an exhaust-fan review, but belt replacement is a separate mechanical service. Make sure the quote states whether inspection, parts, and installation are included.
Provider-selection checklist for Ontario operators
- Does the quote include the hood, filters, plenum, accessible horizontal and vertical ducts, and exhaust fan?
- Which areas will technicians access, and what happens if a section cannot be reached?
- What training, insurance, and safety procedures support the work?
- How does the provider approach NFPA 96-compliant maintenance without overstating certification?
- Can the work be scheduled after hours or during a planned shutdown?
- How will equipment, floors, walls, food-contact areas, roofs, and runoff be protected?
- Will you receive a dated service record, photographs, areas cleaned, deficiencies, and recommendations?
- Are filter exchange, fan-belt work, appliance cleaning, and grease-trap service priced separately?
- What should the kitchen team do before arrival, and when can the area safely return to operation?
Pre-service preparation checklist
- Confirm the appointment window with the manager and closing team.
- Remove or secure loose items around the hood and access areas.
- Identify roof, ladder, electrical, water, and access-panel requirements.
- Tell the provider about equipment changes, recurring smoke, odours, leaks, or fan noise.
- Reserve time for cleanup, drying, reassembly, and operational checks.
- Keep previous service records available for comparison.
Frequently Asked Questions
Is cleaning the visible kitchen hood enough?
Cleaning the visible hood alone is not the same as cleaning the full exhaust system. Grease can remain in filters, the plenum, ductwork, and exhaust fan, so ask for a scope that follows the connected path to the discharge point.
What documentation should a commercial kitchen receive?
Request a dated service record identifying areas cleaned, access limitations, deficiencies, recommendations, and photographs if included. Retain it with your maintenance and inspection documents.
Are filters and exhaust fans normally included?
They may be included in a full-system quote, but inclusion varies. Confirm whether filters are cleaned or exchanged, whether fan blades and housing are addressed, and whether belts or repairs are separate.
What if smoke or odours continue after cleaning?
Report the issue to the provider and request a follow-up assessment. Persistent smoke or odours can involve airflow balance, fan condition, make-up air, cooking practices, duct design, or another issue that cleaning alone may not resolve.
Conclusion: Choose full-system scope, clear records, and a practical schedule
The strongest way to compare commercial kitchen hood and duct cleaning is to look beyond the hood’s appearance. Confirm that service addresses the hood, filters, plenum, accessible ducts, and exhaust fan, then compare safety practices, access planning, documentation, scheduling, and follow-up support.
For Ontario operators, the maintenance context matters. Ontario Regulation 213/07 points applicable commercial cooking operations toward NFPA 96 maintenance, while the right frequency depends on the kitchen’s cooking load and operating conditions. A written scope and useful service record make that maintenance easier to manage.
Robinhood Cleaners provides kitchen exhaust, hood, duct, filter, fan, commercial equipment, and grease-trap services for commercial kitchens across Ontario, with quick service in Southern Ontario.