How Often Should a Brampton Kitchen Hood Be Cleaned?
NFPA 96 sets exhaust system inspection frequency by cooking volume and fuel type, not by the calendar year. High-volume and solid-fuel operations are inspected quarterly, moderate-volume kitchens semi-annually, and low-volume kitchens annually. The awkward part is deciding which category a real kitchen belongs to, because the labels describe cooking intensity rather than seat count. This guide translates the schedule into the kinds of kitchens that actually operate in Brampton.
Last updated: August 2026.
The schedule, mapped onto Brampton kitchens
Find the row that describes what happens on your line during a normal week.
| Frequency | NFPA 96 category | What that looks like in Brampton |
|---|---|---|
| Monthly | Solid fuel cooking | Charcoal, wood or tandoor-style solid fuel equipment. Solid fuel produces creosote as well as grease, and it is the shortest interval in the standard. |
| Quarterly | High-volume operations | Busy independent restaurants running high-heat gas lines and fryers, quick-service locations on continuous fryer duty, and any kitchen serving long hours seven days a week. |
| Semi-annually | Moderate-volume operations | Most sit-down restaurants with regular but not punishing service, licensed club kitchens used several nights a week, and banquet halls with a steady booking calendar. |
| Annually | Low-volume operations | Cafes with minimal grease cooking, seasonal or occasional-use kitchens, church and small community hall kitchens, and serveries doing light reheating. |
The frequency is for inspection. Cleaning follows whenever the inspection finds grease at or beyond the NFPA 96 limit of 0.078 inches, which in a high-volume kitchen means most inspections turn into cleanings, and in a genuinely low-volume kitchen sometimes does not.
Cooking method vs seat count: which one sets your schedule?
Operators almost always guess using the wrong variable.
| Signal | Cooking method | Seat count or floor area |
|---|---|---|
| How well it predicts grease loading | Very well. Fryers, charbroilers, tandoors and flat-tops are what load a canopy. | Poorly. A large dining room can sit above a light-grease menu. |
| Example that breaks the other column | A twenty-seat kitchen with a tandoor and two fryers loading faster than a hundred-seat pasta room. | A banquet hall for four hundred that cooks eight times a month. |
| What NFPA 96 uses | Cooking volume and fuel type. | Not a factor in the standard. |
| What an inspector looks at | The plenum and the filters. | Nothing. |
Six signs a Brampton kitchen is overdue
None of these require a ladder, and any two of them together mean the system needs looking at now rather than at the next scheduled date.
- Filters are wet or dripping during service. Saturated baffles have stopped stripping grease from the airstream, and everything past them is now collecting it.
- The collection cups fill within days. A cup that needs emptying constantly is telling you how much is passing through.
- The kitchen has got hotter. Airflow loss from a grease-narrowed duct shows up as heat on the line long before anything is visible.
- Smoke hangs over the cook line. If the hood no longer clears smoke the way it did, the system is not moving the air it was designed to move.
- The rooftop fan is louder or vibrating. Uneven blade deposits throw a fan out of balance, which wears its bearings and costs more than a cleaning.
- Grease is showing on the roof near the fan. That means the discharge has been running heavy for a while. The rooftop grease containment page covers what it damages.
The other reliable signal is the sticker. If the dated service sticker on the hood is older than the interval in the table above, the answer is already known.
Questions about frequency
Who decides which category my kitchen is in?
In practice, the evidence does. The first visit photographs the plenum, the filters and the duct interior, and the state of those surfaces after a known interval settles the category far better than any conversation about how busy the kitchen feels. Brampton Hood Cleaning Pros sets the recommended schedule from that first set of photographs and adjusts it if the next visit shows something different.
Can we stretch to annual to save money?
A kitchen can, right up until an inspection or a claim. It is worth knowing what is actually being saved: a system cleaned on schedule costs less per visit than the same system left for years, because hardened deposits take longer to remove. Stretching the interval mostly moves cost rather than removing it, and it moves risk in the wrong direction at the same time.
Does a seasonal kitchen need cleaning if it sat unused?
Yes, and the timing matters. Grease left in a system over months of shutdown hardens and, in a solid-fuel or heavy-grease kitchen, can go rancid. The useful pattern for a seasonal Brampton operation, such as a club kitchen or an event venue with a defined season, is to clean at the end of the season rather than the start, so nothing sits in the duct through the quiet months.
Does my insurance set a frequency of its own?
Often, yes, and it can be stricter than the standard. Policies frequently name a cleaning interval as a condition, and the consequence of missing it only appears at claim time. Read the wording, then set the schedule to whichever is more frequent, the policy or NFPA 96. The NFPA 96 guide covers how the standard and the Ontario Fire Code fit together.
We just took over an existing restaurant. Where do we start?
Start with a walk-through before assuming anything. A kitchen bought as a going concern arrives with an unknown history, and the previous operator's schedule, if there was one, is rarely documented. The first visit establishes the real condition with photographs, which also gives the new operator a dated baseline that is genuinely theirs.