How Often Does a Restaurant Hood Need Cleaning in Alberta?

In Alberta, how often your restaurant hood needs cleaning depends on your cooking volume, following the NFPA 96 standard: monthly if you cook with solid fuel (wood, charcoal), quarterly for high-volume cooking (fryer-heavy menus, charbroiling, wok cooking, 24-hour operations), semi-annually for moderate-volume kitchens, and annually for low-volume operations like seasonal concessions or church kitchens. Alberta's fire code applies NFPA 96 to commercial cooking operations, so these intervals are the practical benchmark inspectors and insurers work from.

Why volume, not the calendar, drives the schedule

Grease accumulates in your exhaust system in proportion to what and how much you cook. A charbroiler throwing grease-laden vapour up the duct twelve hours a day loads the system many times faster than a soup-and-sandwich café. NFPA 96's approach is that systems must be inspected at these intervals and cleaned to bare metal when grease buildup is found — in practice, kitchens in each category treat the interval as their cleaning cycle, because a high-volume system at the end of its quarter is never clean.

Which category is your kitchen?

• Monthly — solid fuel: wood-fired pizza ovens, charcoal grills, smokers. Solid fuel produces creosote as well as grease, the most aggressive buildup there is.
• Quarterly — high volume: most fast food, pubs with big fryer batteries, charbroiling steakhouses, wok lines, camp and 24-hour kitchens.
• Semi-annual — moderate volume: typical sit-down restaurants with mixed menus and standard hours. Many Red Deer kitchens fall here.
• Annual — low volume: seasonal operations, halls, churches, day camps, low-use care kitchens.

Honest self-assessment matters. Owners tend to file themselves one category too low, and the gap shows up as a grease-loaded duct at inspection time. If you're unsure, our frequency-by-volume guide goes deeper, or just describe your menu and hours to our intake assistant and our partner will slot you honestly.

What happens between cleanings

Your staff should still degrease filters on their regular cycle — often weekly in busy kitchens — and keep an eye out for visible grease at the hood edge, dripping, or smoke rolling out from under the canopy, all signs the system is loading faster than expected. Between-visit filter care doesn't replace professional cleaning; the duct and fan can only be done properly by a crew with the equipment and roof access, as our duct-versus-hood explainer covers.

Each professional visit should end with a certificate of performance — your proof of compliance for the fire inspector and your insurer. Typical Central Alberta pricing runs $400–900 per visit; on a quarterly cycle that's $1,600–3,600 a year, a known cost that protects the licence, the lease and the building.