Prepare for hood cleaning by confirming the service scope and shutdown window, removing food and loose items near the work area, clearing access from the hood to the exhaust fan and roof, and giving technicians safe entry instructions. The cleaner handles professional isolation, degreasing, duct and fan work, containment, reassembly, and documentation. Your kitchen prepares the site and verifies it before reopening. Related reading: What Should You Do Before Professional Upholstery Cleaning in Calgary?.
This guide gives Ontario restaurant owners, managers, chefs, and commercial kitchen operators a practical countdown plan for scheduled hood or kitchen exhaust cleaning.
Start With the Service Window and Scope
Preparation starts when the appointment is booked. Confirm the shutdown window, identify which exhaust systems are included, and trace the route from the hood through the ductwork to the exhaust fan.
A complete scope may include the canopy, filters, plenum, accessible horizontal and vertical ducts, and exhaust fan. Ontario’s Fire Code requires commercial cooking exhaust systems to have suitable inspection and cleaning openings with tight-fitting doors, so access planning is part of responsible maintenance. Read the Ontario Fire Code provision on commercial cooking exhaust systems.
Ask what is included and what is separate. Filter exchange, fan belt replacement, appliance cleaning, and grease trap cleaning should not be assumed to form part of every hood-cleaning appointment.
What to Tell Robinhood Cleaners When Booking
Give the cleaner enough information to plan equipment, access, labor, and timing. A detailed request for a commercial kitchen hood cleaning service should include:
- Location: Provide the full address, building name, and best entrance.
- System count: State how many hoods, fans, and separate exhaust systems serve the kitchen.
- Cooking profile: Describe fryers, charbroilers, ranges, ovens, woks, or solid-fuel appliances.
- Operating hours: Share closing, delivery, and staff schedules.
- Shutdown window: Identify when cooking can stop and when the kitchen must be ready again.
- Access: Explain roof hatches, ladders, gates, alarmed doors, security procedures, and escort requirements.
- Access panels: Point out panels above ceilings, in service rooms, or away from the cookline.
- Condition: Mention heavy grease, dripping residue, smoke, odors, fan noise, roof grease, or prior issues.
- Building constraints: Note shared roofs, restricted hours, parking limits, or landlord permissions.
- Related work: Ask whether filter, fan belt, appliance, or grease trap work should be discussed separately.
Assign one manager to own this information, brief staff, provide access, and receive the service handoff.
The Preparation Countdown
Assign each task to a named person instead of treating preparation as a general instruction.
When booking
- Confirm the date, arrival window, scope, and shutdown time.
- Record hood, fan, and access-panel locations.
- Describe cooking equipment, grease condition, and access restrictions.
- Notify management, kitchen staff, security, and building contacts.
- Decide who will unlock doors, manage alarms, and escort technicians.
The day before
- Plan the final cooking period and stop time.
- Move packaging, utensils, containers, and loose supplies away from the hood and panels.
- Remove food from exposed areas and protect anything remaining.
- Clear routes to panels, service rooms, exterior doors, ladders, roof hatches, and the fan.
- Prepare keys, access cards, gate codes, alarm instructions, and contact details.
Before technicians arrive
- Stop cooking and allow hot equipment to cool under your normal shutdown procedure.
- Remove food, ingredients, clean utensils, packaging, and portable equipment from the work zone.
- Leave fixed cooking equipment in place unless the cleaner gives different instructions.
- Make entrances, roof routes, access panels, and service areas available.
- Report electrical, gas, water, refrigeration, ceiling, roof, or security concerns before work begins.
- Keep staff and customers away once containment and cleaning begin.
During service
- Keep the designated manager available for questions.
- Do not restart cooking equipment or the exhaust fan while the system is isolated.
- Keep staff away from wet floors, solutions, open panels, ladders, and contained areas.
- Record issues such as damaged filters, worn belts, blocked access, or heavy accumulation.
Before reopening
- Confirm filters and access panels are correctly seated.
- Inspect the hood, cookline, nearby surfaces, floor, and equipment for residue, moisture, or debris.
- Confirm containment, waste, tools, and temporary protection are removed.
- Return food and utensils only when the work area is clean, dry, and usable.
- Review deficiencies and file supplied reports, photographs, tags, or recommendations.
Clear the Kitchen Without Creating More Work
Staff should clear the work zone but should not dismantle the exhaust system. Remove food, ingredients, packaging, utensils, smallwares, removable shelves, and portable equipment from beneath and around the hood. Cover or relocate items that could be affected by water, degreaser, loosened grease, or rinsing.
Leave fixed cooking equipment in place unless instructed otherwise. Moving gas appliances, electrical equipment, suppression components, or connected fixtures can create hazards and delay the visit.
If the technician will perform commercial exhaust hood cleaning, clear items near the filters, hood edges, access panels, and fan route. A tidy cookline is not enough if a shelf, box, or locked service-room door blocks the internal system.
The cleaner handles professional containment and protection. Your responsibility is to remove obstacles, protect food and clean utensils, identify sensitive equipment, and provide working space.
Prepare the Complete Access Route From Hood to Roof
Think of access as one continuous route: hood and filters, plenum, duct panels, ceiling or service areas, exterior doors, fan housing, and roof. Complete exhaust system cleaning may extend beyond the visible hood, so a locked hatch or blocked panel can prevent access to part of the system.
- Locate every duct access panel and clear nearby storage.
- Clear ceilings, corridors, mechanical rooms, and narrow routes.
- Confirm the correct exterior door, gate, ladder, stairwell, roof hatch, and fan location.
- Provide keys, access cards, alarm instructions, lighting, and security contacts.
- Arrange landlord or building escorts where required.
- Explain roof restrictions, shared tenant areas, and weather-sensitive access.
Do not ask kitchen staff to climb onto a roof, open electrical equipment, disconnect gas, enter a fan housing, or access internal ductwork unsafely. Provide information through the appropriate building contact and leave technical isolation and cleaning to the professionals.
Who Does What: Restaurant Preparation Versus Professional Cleaning
| Restaurant or facility handles | Professional cleaner handles |
|---|---|
| Confirm the appointment, scope, shutdown window, and contact. | Review the work area and set up the operation. |
| Notify staff, security, and building contacts. | Isolate relevant power and prepare the system. |
| Remove food, utensils, packaging, and loose items. | Protect equipment and floors with containment. |
| Provide keys, escorts, alarms, and route access. | Clean filters, hood, plenum, accessible ducts, and fan within scope. |
| Stop cooking and keep staff away. | Degrease, rinse, reassemble, clean up, and document findings. |
| Inspect the kitchen before reopening and file records. | Provide available service documentation and identify issues. |
What Happens During the Cleaning Visit
Proper commercial hood cleaning is a system-wide sequence, not simply wiping the visible canopy. The visit generally includes setup, power isolation, filter removal, hood and plenum cleaning, accessible duct cleaning, fan cleaning, rinsing, drying, reassembly, inspection, and documentation.
- Setup: Protect nearby equipment and floors.
- Isolation: Isolate relevant power before work begins.
- Filters: Remove them for cleaning or exchange.
- Hood and plenum: Treat and remove grease and residue.
- Ducts: Clean accessible horizontal and vertical sections.
- Fan: Clean the housing and blades within scope.
- Rinsing and drying: Finish surfaces and allow them to dry.
- Handoff: Reassemble components, clean the area, and document findings.
Duration varies with system size, access, grease accumulation, fan location, building restrictions, and related work. Plan around the stages and provider’s arrival window instead of assuming every appointment takes the same number of hours.
Hood cleaning and duct cleaning are related but not identical. Cleaning the visible hood alone does not prove that the plenum, internal duct path, filters, and fan are clean.
Frequency, Staff Cleaning, and Full-System Service
Routine staff cleaning cannot replace professional full-system service. Staff may clean accessible filters and visible surfaces without reaching the plenum, ducts, or fan.
Regular filter and canopy cleaning remains useful between visits because it limits surface buildup and helps staff notice dripping grease, smoke spillage, odors, or fan noise. It does not reset the complete-system schedule.
Robinhood Cleaners describes planning ranges of one to three months for high-volume operations, three to six months for moderate volume, and six to twelve months for light-duty kitchens. Cooking volume, equipment, grease load, solid-fuel cooking, applicable requirements, and inspection findings can change the schedule. Review hood-cleaning scheduling guidance.
The so-called “20-minute rule” is not a universal commercial hood-cleaning requirement established by the Ontario evidence available for this guide. Scope, condition, access, and completed work matter more than a fixed time.
Reopening Checks Before Food Preparation Resumes
Reopening is a handoff, not simply the end of the cleaning noise. Walk the work area with the technician or designated contact.
- Confirm filters and access panels are installed and secured.
- Check the hood, plenum, cookline, walls, floor, and nearby equipment for residue or moisture.
- Remove protective materials, waste, tools, and cleaning supplies.
- Confirm equipment is clean, dry, intact, and ready for normal restart.
- Return roof doors, gates, service rooms, and building areas to their required condition.
- Record damaged filters, belt concerns, blocked panels, or other follow-up items.
- Save supplied reports, photographs, tags, and recommendations.
Questions Managers Commonly Ask Before Service
How long does a hood cleaning take?
It depends on system size, access, grease condition, and scope. Setup, isolation, cleaning, drying, inspection, and documentation all affect the service window.
How long before hood cleaning should cooking stop?
Cooking should stop before setup and isolation at the time agreed during booking. Allow time for cooling, food removal, and staff handoff.
Does hood cleaning include the ducts and exhaust fan?
It can when the agreed scope is complete hood and exhaust-system cleaning. Confirm the included components for your appointment.
Can staff cleaning replace professional hood cleaning?
No. Staff cleaning visible surfaces and filters does not necessarily reach the plenum, ductwork, or fan.
What should I tell the cleaner when booking?
Provide the address, hood and system count, cooking equipment, hours, shutdown window, access-panel locations, roof arrangements, grease condition, previous issues, and building restrictions.
Does the 20-minute rule apply to hood cleaning?
There is no verified universal 20-minute rule for commercial hood cleaning in the available Ontario evidence. Adequacy depends on the system, condition, access, and scope.
Plan the Visit With Robinhood Cleaners
With the system details, shutdown window, access route, and manager contact ready, you can plan the visit without leaving important questions until cleaning night. Robinhood Cleaners serves restaurants and commercial kitchens throughout Ontario, with fast response in Southern Ontario. Discuss your site conditions and preferred service window through its commercial exhaust hood cleaning service.