Commercial Kitchen Hood Cleaning Code Requirements: NFPA 96 Guide for Long Island & NYC Restaurants

Grease fires in restaurants don’t usually begin at the grill. They begin in the places nobody checks: the inside of the hood, the long run of duct above the ceiling, the fan on the roof. Months of buildup sit there quietly until a flare-up on the line finds it.

That’s the reason fire inspectors look so hard at exhaust systems, and the reason the commercial kitchen hood cleaning code requirements are worth understanding before anyone asks you about them. If you run a kitchen on Long Island or in the five boroughs, the rules are manageable. What catches people out is the fine print: which standard applies, how often, who’s allowed to do the work, and what has to be sitting in the building when an inspector walks in.

Quick answer: Commercial kitchen hood cleaning code requirements in New York follow NFPA 96, the national standard for commercial cooking ventilation and fire protection. It sets how often the exhaust system must be inspected, requires qualified contractors to remove grease buildup, and calls for a service certificate and a dated sticker on the hood. Local fire authorities enforce it.

Key Takeaways

• NFPA 96 is the standard fire officials use for commercial cooking exhaust, and local codes in New York point to it.
• Your inspection schedule depends on what you cook and how much of it.
• Trained, qualified people have to clean contaminated hoods, ducts, and fans.
• Keep the service certificate in the building and the dated sticker on the hood.
• Code editions and local amendments vary by town, so confirm yours with the fire authority.

What Are the Commercial Kitchen Hood Cleaning Code Requirements?

They come from NFPA 96, the national standard for ventilation control and fire protection of commercial cooking operations. It covers how often your exhaust system is inspected, when it has to be cleaned, who is qualified to clean it, and what proof you keep afterward. Fire officials use it as the yardstick, and local codes in New York point back to it.

In everyday terms, it adds up to this:

• Your whole exhaust system, hood to fan, gets inspected on a schedule that depends on what kind of cooking you do and how much.
• Grease found during an inspection has to be cleaned out by someone trained and qualified to do it.
• “Cleaned” means the buildup is gone. Making the visible parts look better doesn’t count.
• A certificate with the servicing company’s name and the date stays at the restaurant.
• The hood carries a sticker showing when the next inspection or cleaning is due.

One caution. Section numbers and wording shift between editions of NFPA 96, and your town decides which edition counts. Check before you quote it in a contract, and treat this article as a starting point rather than the final word.

Why Does Grease Buildup in a Kitchen Exhaust System Matter So Much?

Because grease burns. Cooking pushes greasy vapor into the exhaust, the vapor cools and condenses on the filters, the duct walls, and the fan, and it stacks up in layers. If a flare-up on the line reaches that coating, the fire has somewhere to go, and it can travel through the building.

That’s why the code cares about the parts you can’t see from the kitchen floor. A hood can look spotless while the duct above it hasn’t been touched in years. Some warning signs do show up: a kitchen that runs hotter than it used to, a hood that seems to pull less air, grease dripping around the rooftop fan. Any of those is worth a phone call before an inspector makes the call for you.

How Often Does a Commercial Kitchen Hood Need to Be Cleaned?

It depends on how you cook. NFPA 96 sets the inspection schedule by cooking type and volume, so a charbroil line running all day sits on a tighter cycle than a low-volume kitchen. A qualified contractor inspects first, then cleans if grease has built up.

Don’t read that table as a target to hit. Think of it as the floor. If your inspections keep turning up heavy grease between visits, the schedule is wrong, whatever a chart says. A kitchen running a deep fryer and a charbroiler through two meal services is a different animal from one that serves weekday lunch, even though both can sit under the same heading on paper. And since your local fire authority can have expectations of its own, ask before you lock anything in.

Who Is Allowed to Clean a Commercial Kitchen Exhaust System?

NFPA 96 expects cleaning to be done by properly trained, qualified people, and some inspectors ask to see proof of that training. Your kitchen staff can handle daily upkeep. Ductwork and rooftop fans belong to contractors.

Training standards exist outside the code, too. ANSI/IKECA C10 is an industry standard for kitchen exhaust cleaning, and some training programs test against it alongside NFPA 96. Ask any contractor which standards they actually work to. A specific answer is a good sign. A shrug isn’t.

What Can Kitchen Staff Do Between Professional Cleanings?

Quite a bit, as long as the work stays on the kitchen side of the system: wiping the hood exterior, washing or swapping filters, keeping the area around the cooking line clean, assuming your procedures and local rules allow it. The duct and the fan are another story, and that’s where most of the risk sits.

Try a short weekly look with a flashlight. Inside the hood, at the filters, and at the roof fan if you can get up there safely. Jot down what you see. When your contractor asks how things have been between visits, those notes beat memory every time.

What Happens During a Professional Hood and Duct Cleaning?

A proper job follows the whole path grease takes, from the hood over the cooking line to the fan on the roof. A hood wipe-down is a different thing entirely.

• The technician inspects the system and documents its condition before anything gets cleaned.
• Cooking equipment is covered and protected, and power to the exhaust fan is shut off.
• Filters come out, and the hood interior is degreased and rinsed.
• Access panels open so the duct interior can be cleaned along its full length.
• The rooftop fan comes next, often the hardest part of the job.
• Everything is reassembled and tested, and the work area is cleaned up.
• A final inspection, the service certificate, and the dated sticker close out the visit.

How long all of this takes depends on the size of the system, how much grease is in it, and how easy it is to reach the duct and the roof. Anyone who quotes you a firm answer without seeing the system is guessing.

What Records and Stickers Do Inspectors Look For?

Inspectors want proof that the cleaning happened. That means a service certificate with the servicing company’s name and the date, kept in the building, plus a dated sticker on the hood showing what’s due next.

A sticker alone doesn’t prove much, and fire officials can ask for complete documentation of past cleanings. So don’t leave your records sitting in a contractor’s inbox. Put them in a folder at the restaurant. SaniTech Services includes detailed before-and-after reports and compliance certificates with every project, which gives you something solid to hand over.

A small log next to the certificates helps too: date, company, what got cleaned, anything the technician flagged. It’s five minutes of effort, and the next inspection feels a lot calmer.

How Do the Rules Differ in Nassau County, Suffolk County, and NYC?

NFPA 96 is the common baseline, but the edition and any local amendments depend on who enforces the code where your restaurant sits. In NYC, the FDNY and the city’s fire code come into play. On Long Island, the town, village, or county fire marshal is typically your point of contact.

So just ask. Call the inspector or the fire marshal’s office, find out which edition applies, write it down, and give it to whoever cleans your system. It saves a lot of arguing later.

Is Kitchen Exhaust Cleaning the Same as Air Duct Cleaning?

No. Kitchen exhaust systems carry grease-laden vapors and fall under NFPA 96, while HVAC ducts carry conditioned air and follow different guidance, such as NADCA’s Assessment, Cleaning and Restoration (ACR) standard. The methods differ, so one job doesn’t cover the other.

Most restaurants end up needing more than one service. The grease side is kitchen exhaust cleaning. The dining room and office air handling falls under HVAC air duct cleaning. A hotel or catering operation with on-site laundry will want dryer duct cleaning on the list as well, and larger properties, NYC schools included, fall under commercial and NYC school duct cleaning.

What Affects the Cost of Kitchen Hood Cleaning?

There’s no flat rate that fits every kitchen. Price follows the size of the system, how much grease has built up, how hard the duct and rooftop fan are to reach, and what the scope includes. Two quotes can land far apart simply because one covers the whole system and the other stops at the hood.

That’s why the written scope matters more than the number at the bottom. A suspiciously low quote often means something was left out, so ask what’s included and compare like with like. For a commercial kitchen, a contractor who wants to look at the system before quoting it is usually doing you a favor.

How Do You Choose a Kitchen Exhaust Cleaning Contractor?

Look for someone who can show training, writes the scope down, documents the work, and hands you the certificate and sticker an inspector expects. Local experience helps too, since a contractor who works in your area has dealt with your local inspectors before.

A few questions worth asking up front:

• Can you show proof of training?
• Will you clean the hood, filters, ducts, and rooftop fan, and is that in writing?
• Do you take before-and-after photos?
• What certificate and sticker do I get when you’re done?
• Will you flag access panels or fan hinges that need repair?

If the quote is a single line with no scope, or nobody wants to talk about the rooftop fan, or there’s no paperwork at the end, move on.

How Do You Get Ready for a Fire Inspection?

Start with the paperwork and work your way up to the roof.

• Find your most recent service certificate and confirm it’s in the building.
• Check the sticker on the hood. If the date has passed, book service before anyone else notices.
• Look at the hood and filters. Grease that’s dripping or caked on invites a closer look.
• Clear the access to the duct. Shelving, stored boxes, and equipment have a way of ending up in front of access panels.
• Pull the last before-and-after report so you know what condition the system was in.
• Write down which code edition your inspector uses and who to call with questions.

What Mistakes Cause Problems at Hood Inspections?

Most trouble comes from paperwork gaps and the parts of the system nobody sees. Inspectors commonly flag grease in the ductwork or on the rooftop fan, a missing or expired sticker, no certificate on site, a cleaning scope that skipped the duct interior, and access panels blocked by shelving or stock. None of these is hard to fix. They’re just easy to forget.

What Should You Do Before Opening or Taking Over a Restaurant?

Have the exhaust system inspected before the first service. A previous tenant’s grease doesn’t disappear when the lease changes hands, and the sticker on the hood may tell you very little about what’s behind it.

Ask the landlord or prior operator for service records, and get a written inspection of the hood, duct, and fan. If the duct has no access panels, or the fan is hard to reach, learn that before you sign. Fixing it later costs time you’d rather spend opening.

Meeting Commercial Kitchen Hood Cleaning Code Requirements Without the Scramble

Commercial kitchen hood cleaning code requirements boil down to a short list: inspect on schedule, clean when grease builds up, use qualified people, and keep the paperwork where you can find it. Nothing exotic. Most of the stress comes from putting it off until an inspector is already on the way.

SaniTech Services has served Long Island and NYC from Hauppauge since 2011. If you’d like a second set of eyes on your system, you can request a free quote. For commercial buildings, we start with an inspection and a written scope, so the quote reflects the system you actually have.

Frequently Asked Questions

Is NFPA 96 a law or just a guideline?

NFPA 96 is a published standard, not a law on its own. It becomes enforceable when a state or local government adopts it into its fire or mechanical code, which is why inspectors in New York hold restaurants to it. Ask your local fire authority which edition applies to your building.

How often does a restaurant need hood cleaning on Long Island?

NFPA 96 ties frequency to your cooking type and volume. Solid-fuel and high-volume kitchens are inspected more often than moderate or low-volume ones, and cleaning follows whenever grease has built up. A qualified contractor can inspect your system and recommend a schedule that fits how your kitchen actually runs.

Can my kitchen staff clean the hood themselves?

Staff can handle daily upkeep like wiping the hood exterior and washing filters, if your procedures allow it. Ductwork and rooftop fans are different. NFPA 96 expects trained, qualified people to clean contaminated portions of the exhaust system, and you will need a certificate to show an inspector.

What paperwork should I keep after a hood cleaning?

Keep the service certificate showing the cleaning company’s name and the service date on the premises, along with any before-and-after reports. The dated sticker on the hood shows when the next inspection or cleaning is due. Fire officials can ask for full documentation, so store everything in one place at the restaurant.

Does a hood cleaning include the rooftop exhaust fan?

A complete cleaning should cover the hood, filters, ductwork, and the rooftop exhaust fan, but scopes vary between contractors. Confirm in writing what’s included before work begins. A job that stops at the hood leaves much of the grease path untouched and won’t hold up well under an inspection.