One of the most common questions we hear from restaurant owners across Ontario is simple: how often does my hood actually need to be cleaned? The answer depends on how much cooking your kitchen does, what type of cooking you do, and what NFPA 96 compliance requires for your specific operation. Getting the schedule right matters – clean too infrequently and you risk fire hazards and failed inspections; guess wrong about your cooking volume and you may be paying for services more often than necessary.
As certified specialists in commercial hood cleaning, Fast Hood Cleaners has put together this guide to help Ontario restaurant owners understand exactly what NFPA 96 requires and how to build a cleaning schedule that keeps their kitchen safe and compliant.
What Is NFPA 96?
NFPA 96 is the national standard for fire protection and ventilation control in commercial cooking operations, and it forms the basis for hood cleaning requirements referenced under the Ontario Fire Code. It covers everything from the hood canopy and baffle filters to the grease ducts and rooftop exhaust fan, setting expectations for how thoroughly these components must be cleaned and how often, based on your kitchen’s cooking volume.
Cleaning Frequency Based on Cooking Volume
NFPA 96 generally breaks cleaning frequency down into four categories. Solid-fuel cooking operations, such as those using charcoal or wood, typically require monthly cleaning due to the heavy grease and residue produced. High-volume cooking operations – think 24-hour diners, busy fast-food kitchens, and establishments doing continuous wok or char-broiling – usually need quarterly kitchen exhaust cleaning. Moderate-volume kitchens, which describes most full-service restaurants, are generally recommended semi-annual service, while low-volume kitchens such as seasonal operations or smaller cafes may only require annual cleaning.
These are general guidelines, and every kitchen is different. A technician who understands NFPA 96 compliance can assess your specific setup and recommend the right interval, rather than applying a one-size-fits-all schedule.
Why Grease Duct Cleaning Cannot Be Skipped
A lot of kitchens focus only on the visible parts of the hood and filters, but grease duct cleaning is just as critical. Grease travels up through the ductwork with every cooking session, and because ducts are hidden inside walls or ceilings, buildup can go unnoticed for a long time. A standalone hood cleaning that leaves the ducts and rooftop fan untouched does not meet NFPA 96 requirements and will not hold up during a fire marshal inspection. A complete service should always include the hood, filters, ductwork, and exhaust fan as one connected system.
What Happens If You Fall Behind on Compliance
Falling behind on your kitchen exhaust cleaning schedule creates more than a fire risk. Insurance providers often require proof of regular hood cleaning as a condition of coverage, and a claim can be denied if a fire is traced back to a neglected exhaust system. Health and fire inspectors can also issue fines or shut down operations until the system is brought up to standard. Staying proactive with a documented cleaning schedule protects your business from all of these outcomes.
Let Fast Hood Cleaners Build Your Schedule
Every kitchen has a different rhythm, and your hood cleaning schedule should reflect that. Fast Hood Cleaners works with commercial kitchens throughout Ontario to assess cooking volume, set up the right cleaning frequency, and keep detailed inspection records on file for every visit. Whether you need monthly service for a high-volume kitchen or a semi-annual plan for a smaller restaurant, our certified technicians will make sure your exhaust system stays fully compliant with NFPA 96. Contact Fast Hood Cleaners today to schedule an assessment and set up a cleaning plan built around your kitchen.