Commercial Kitchen Hood Cleaning San Diego: The Complete NFPA 96 Guide
Everything San Diego restaurant owners need to know — cleaning frequency, what a full service actually covers, and exactly how to pass a fire marshal inspection.
In This Guide
Your commercial kitchen exhaust system is your first line of defense against a grease fire. When buildup accumulates in the hood, ductwork, and rooftop fan, you're not just out of compliance — you're sitting on a fire hazard. San Diego fire marshals take NFPA 96 seriously, and a failed inspection means closure until you prove your kitchen is clean and safe.
This guide covers what NFPA 96 actually requires, how cleaning frequency is determined, what a compliant service includes from hood canopy to rooftop fan, and what fire marshals look for when they walk through your kitchen.
What NFPA 96 Requires
NFPA 96 — the Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations — is the national code adopted by San Diego County fire marshals and health departments. It sets the minimum cleaning frequency, defines what areas must be cleaned, and specifies what documentation is required after every service.
The code doesn't care how clean your hood looks. It cares about grease accumulation throughout the entire exhaust path — including ductwork and the rooftop fan that most restaurant owners never see. That's where fires start and where inspectors look.
Cleaning Frequency by Cooking Type
- MonthlyWood-burning ovens, charcoal grills, wok stations, 24-hour operations, and any high-volume frying operation. If your kitchen runs continuously or uses solid fuel, monthly is your interval.
- QuarterlyMost San Diego full-service restaurants fall here — moderate frying, grilling, and standard cooking volumes with lunch and dinner service. This is the most common tier.
- Semi-AnnualLow-volume operations — churches, senior centers, school cafeterias during limited hours, or seasonal operations. A certified technician must confirm this classification applies.
- AnnualNon-grease cooking only — facilities using only steamers, kettles, or similar equipment with no open-flame or high-grease output. Rare in commercial food service.
What a Full-System Cleaning Covers
Surface cleaning fails inspections. NFPA 96 requires the complete exhaust path — not just what you can see from the kitchen floor. Here is what every compliant service from Core Hood Cleaning includes:
The compliance certificate and photo documentation are what fire marshals and health inspectors ask for. If your current cleaning company doesn't provide both after every service, you don't have proof of compliance — and neither does your insurance carrier.
What San Diego Fire Marshals Check
When a fire marshal walks into your kitchen, they are looking at three things: your cleaning documentation, your grease accumulation levels, and whether your cleaning frequency matches your cooking volume. They are not just glancing at the hood surface — they check accessible ductwork, the exhaust fan, and grease containment.
- →NFPA 96 sticker date: The sticker on your hood shows the date of last service. Inspectors compare this against the required interval for your operation type. An expired sticker is an automatic violation.
- →Service documentation: The inspector may ask for your written service records — the report the cleaning company provides after each visit. Records must show date, areas cleaned, and technician certification.
- →Hood interior condition: Visible grease accumulation in the hood during an inspection can result in a violation even if the sticker is current — suggesting inadequate cleaning was performed.
- →Ductwork access points: Inspectors check accessible duct panels for grease accumulation inside the duct. Heavy deposits suggest the ductwork was not properly cleaned.
- →Cleaning interval vs. operation type: Experienced inspectors assess your cooking equipment and compare it against your documented cleaning interval. A quarterly sticker on a 24-hour wok kitchen will be questioned.
Restaurants without current documentation face violations regardless of how recently they were cleaned. If you cannot hand the inspector a compliance certificate with the date, areas cleaned, and technician certification, you do not have proof. That is the difference between passing on the spot and getting a violation notice.
Red-Tagged? Call Us First.
If you have been red-tagged or have a fire marshal re-inspection coming up, we offer same-day emergency service throughout San Diego County. Call (858) 361-2570.
Why Insurance Requires Documented Cleaning
Commercial kitchen insurance policies require documented proof of professional hood cleaning at the code-required frequency. When a grease fire occurs in a kitchen without proper records, insurers deny claims — leaving the restaurant owner personally liable for damages.
The compliance certificate provided after every Core Hood Cleaning service is what your insurance carrier needs on file. It documents the date, scope of work, and technician certification. Keep a physical and digital copy — you will need it if you ever file a claim.
San Diego Service Areas
Core Hood Cleaning serves commercial kitchens throughout all of San Diego County:
Book a Certified Hood Cleaning
Core Hood Cleaning provides NFPA 96 certified hood cleaning throughout San Diego County — full documentation, before/after photos, and compliance certificate on every service.
Frequently Asked Questions
How often should commercial kitchen hoods be cleaned in San Diego?
NFPA 96 sets cleaning frequency by cooking type and volume: monthly for high-volume and solid-fuel operations, quarterly for most full-service restaurants, and semi-annually for low-volume institutional kitchens. San Diego fire marshals enforce these frequencies during inspections.
What happens if I fail a fire inspection due to a dirty hood system?
A failed inspection can result in an immediate closure order, fines, and voided insurance coverage. You need to schedule emergency cleaning and pass a re-inspection before reopening. Core Hood Cleaning offers same-day emergency service throughout San Diego County — call (858) 361-2570.
What does a full commercial hood cleaning include?
A compliant NFPA 96 service covers the complete exhaust path: hood canopy, baffles, plenum, all ductwork, the rooftop exhaust fan, and grease containment. Every Core Hood Cleaning service includes before and after photos, a written service report, and an NFPA 96 compliance certificate.
Does hood cleaning include the rooftop exhaust fan?
Yes — a fully compliant NFPA 96 cleaning must include the rooftop exhaust fan. Technicians access the roof, open the fan housing, and clean the blades, housing interior, and curb area. Any company that does not go to the roof is not providing a fully compliant service.
Can a failed fire inspection affect my insurance?
Yes. Commercial kitchen insurance policies require the policyholder to maintain the exhaust system in compliance with NFPA 96. If a grease fire occurs and cleaning records show an expired interval, the insurance carrier can deny the claim — even if the policy appeared valid at the time.
What documentation do I receive after a hood cleaning?
After each service you receive a written service report, before and after photos, a statement of NFPA 96 compliance, and an NFPA 96 sticker applied to the hood. This is the documentation fire marshals, health inspectors, and your insurance carrier require.
What areas of San Diego County do you serve?
Core Hood Cleaning serves all of San Diego County — La Jolla, Pacific Beach, Downtown San Diego, Mission Valley, Chula Vista, Oceanside, Carlsbad, Escondido, El Cajon, Vista, San Marcos, National City, La Mesa, Coronado, Encinitas, Del Mar, Miramar, Rancho Bernardo, Poway, and Santee.