NFPA 96 for Oshawa Commercial Kitchens
NFPA 96 is the National Fire Protection Association standard for ventilation control and fire protection of commercial cooking operations. It sets out how a kitchen exhaust system is designed, how often it is inspected, when it is cleaned, and what records are kept. In Ontario the standard is not a law on its own. The Ontario Fire Code references NFPA 96, and the local fire service enforces the Fire Code: Oshawa Fire Services in Oshawa, Clarington Emergency and Fire Services in Courtice, Bowmanville and Newcastle. This guide references the published standard and is not affiliated with NFPA.
What NFPA 96 is, and what it covers
NFPA 96 is published by the National Fire Protection Association. It covers the whole grease-handling path of a commercial kitchen: hood, filters, duct, exhaust fan, the suppression over the appliances, and the clearances between hot duct and the building. Its cleaning chapter rests on three ideas.
Grease is fuel. Cooking grease inside the exhaust path is treated as a fire load, which is why the standard sets a measurable depth, 0.078 inches, at which a surface needs cleaning. The number is a depth, not a look.
Inspection comes first, cleaning follows. The standard publishes how often a system is inspected for grease build-up, by type and volume of cooking. Cleaning happens when inspection finds deposit at or over the limit.
Records are part of compliance. Dated records of inspection and cleaning, stating what was done and by whom.
Monthly vs quarterly vs annual: NFPA 96 inspection frequency by cooking volume
NFPA 96 publishes four inspection intervals, set by the type and volume of cooking rather than the size of the kitchen.
| Cooking volume vs published interval | Type of cooking operation in NFPA 96 | What it looks like in Oshawa or Clarington |
|---|---|---|
| Monthly | Solid fuel cooking | A wood-fired pizza oven or a charcoal grill, rare but present downtown and in Bowmanville. |
| Quarterly | High-volume cooking, including 24-hour operation, charbroiling and wok cooking | A burger or burrito franchise on the 401 corridor, a pub fryer line on Simcoe Street, a retirement residence cooking three services a day. |
| Semi-annually | Moderate-volume cooking | A single-shift restaurant on a mixed menu, a school servery closed for the summer. |
| Annually | Low-volume cooking, including churches, day camps, seasonal businesses and senior centres | A curling club kitchen open for the winter, a conservation area kitchen used in summer, a mission serving a few meals a week. |
Source: the published NFPA 96 standard, table of inspection frequency for grease build-up.
How the Ontario Fire Code brings NFPA 96 into force in Oshawa
The Ontario Fire Code is the provincial regulation governing fire safety in existing buildings, and it references NFPA 96 as the standard that commercial cooking exhaust systems are inspected and cleaned against.
The chain has three links. The Ontario Fire Code is made under the Fire Protection and Prevention Act. Its requirements for commercial cooking equipment point to NFPA 96 for the technical detail: what to inspect, how often, to what depth, and what to record. An inspector in Oshawa carries the Fire Code, and the Fire Code carries NFPA 96 inside it.
Two consequences follow. The standard applies whether or not an operator has heard of it, because the Fire Code applies to the building. And the published intervals are a legal floor, not a recommendation.
What Oshawa Fire Services and Clarington Emergency and Fire Services look for
Oshawa Fire Services enforces the Ontario Fire Code inside the City of Oshawa from six stations, and since 2024 it also runs the fire dispatch centre for Durham Region. Clarington Emergency and Fire Services enforces it in Courtice, Bowmanville and Newcastle from stations on Highway 2 and Trulls Road.
A fire inspection in either municipality tends to run in the same order. The inspector asks for the most recent cleaning record and reads what it names. A record listing the canopy and nothing else invites the next question, which is whether the duct was opened. The inspector looks behind the filters at the plenum, checks that duct access panels exist and that the rooftop fan can be opened, and confirms the suppression tag is current.
Fire services enforce. They do not issue cleaning certificates and they do not endorse contractors. The certificate on file is the operator's evidence, produced by the contractor, and the inspector reads it as evidence rather than proof. Durham Region Health Department runs a separate food-safety inspection that does not cover the exhaust path.
Top-rated NFPA 96 certificate in Oshawa: what it does and does not assert
A hood cleaning certificate asserts that named sections of a specific system were cleaned on a specific date by a specific contractor to the published NFPA 96 standard. It does not assert that the system passed a fire inspection, that NFPA has certified the contractor, or that any unnamed section was cleaned.
What it asserts. The sections cleaned, by name: canopy, filters, plenum, horizontal run, riser, fan. The date. The grease depth found where it was measured. Any section that could not be reached, with the reason. A signature. Oshawa Hood Cleaning issues a signed health and safety certificate on that basis, with before-and-after photographs attached, stating that the work references the published NFPA 96 standard and that the business is not affiliated with NFPA.
What it does not assert. It is not a fire inspection. It does not cover any section it does not name, which is why a certificate that says only "hood" is worth so little. And no certificate makes a contractor certified by NFPA, because NFPA publishes standards and does not certify companies.
The full-system scope is on the kitchen exhaust cleaning page, the hood assembly on the hood cleaning services page, every service on the services page, and the two fire services on the areas served page.
How much does an NFPA 96 compliant cleaning cost in Oshawa in 2026?
Oshawa Hood Cleaning prices a single-hood kitchen up to ten feet from $385 per visit and a multi-hood kitchen of two to four canopies from $725 per visit, with larger systems quoted on site after a free walk-through and the written quote back within 24 hours.
The walk-through is the useful document for an operator who has inherited a kitchen or been asked for records that do not exist, because it puts the current state of the system in writing.
Next step: call 289-274-5331 or request a written quote. Bring the last certificate if there is one.
NFPA 96 in Oshawa: frequently asked questions
Does NFPA 96 apply to a club or mission kitchen that cooks a few times a week?
Yes. The standard covers every commercial cooking operation that produces grease-laden vapour, however often it runs. Churches, seasonal businesses and senior centres are named in the published table with an annual interval, and a curling club or mission kitchen in Oshawa sits in that row.
What does the Ontario Fire Code actually say about NFPA 96?
The Ontario Fire Code references NFPA 96 as the standard for the design, installation, inspection and cleaning of commercial cooking exhaust systems. The Fire Code is the regulation. NFPA 96 is the technical document it points to.
Who is the authority having jurisdiction for a kitchen in Courtice?
Clarington Emergency and Fire Services. Courtice sits inside the Municipality of Clarington with Bowmanville and Newcastle, and Clarington runs its own fire service with a station on Trulls Road. Oshawa Fire Services covers the City of Oshawa only, and the certificate names the correct authority.
Is a hood cleaning certificate the same as passing a fire inspection?
No. The certificate is the contractor's record of what was cleaned. The inspection is the fire service's check of the whole kitchen, which reads the certificate as one piece of evidence among several. A certificate naming every section is the strongest evidence an operator can offer.
How is 0.078 inches measured, and what is it in millimetres?
About two millimetres. The depth is measured with a comb-style grease depth gauge pressed against the surface where deposit collects: the plenum wall, the inside of the duct at a panel, or the fan inlet. It is a physical measurement on the metal, recorded on the certificate.