Grease and carbon buildup in commercial kitchen exhaust systems is a leading cause of restaurant fires in the United States. Keeping your hood system clean is not just a health code requirement — it directly affects the safety of your kitchen staff, your property, and your business license. At Extreme Cleaning, we provide professional hood cleaning services to commercial kitchens across Alabama and surrounding areas.
We work with restaurant owners, cafeteria managers, and commercial kitchen operators who need reliable, code-compliant hood cleaning done right. This page covers everything from what our service includes to the risks of skipping regular cleanings, why businesses choose us, and the areas we cover across Alabama.
We clean every part of your commercial kitchen exhaust system — from the hood filters and canopy down through the ductwork and rooftop fan — keeping grease buildup under control and your kitchen compliant with NFPA 96 standards.
A kitchen exhaust system includes more components than most owners realize. Grease doesn’t just collect in the hood — it travels through the entire system and builds up in places that are difficult to inspect without proper equipment.
Our cleaning process covers:
We use hot-pressure washing and hand scrubbing to remove grease deposits throughout the system. This isn’t a surface-level wipe-down — we clean to bare metal where required.
The canopy and filters are the first line of defense against grease entering your ductwork. When filters are clogged or improperly seated, grease bypasses them and accumulates deeper in the system — increasing both fire risk and cleaning costs over time.
We remove, degrease, and reinstall hood filters during every service visit. Baffle filters are scrubbed and inspected for damage. If a filter is bent, corroded, or no longer sealing correctly, we flag it so it can be replaced before it creates a problem.
Filter cleaning frequency guidelines (NFPA 96):
Cooking Volume | Recommended Frequency |
High (solid fuel, 24-hr operations) | Monthly |
Moderate (standard commercial kitchen) | Quarterly |
Low (churches, seasonal kitchens) | Annually |
The exhaust fan sits at the top of the system — usually on the rooftop — and it takes a significant grease load over time. A fan caked in grease runs less efficiently, wears out faster, and can become a fire source on its own.
We clean fan blades, the fan housing, and the grease drip tray or containment system at the rooftop unit. Inside the ductwork, we remove grease buildup using pressure washing and hand tools to reach bends and joints where grease pools. Access panels are used and replaced correctly, and we document the condition of the duct interior for your records.
Routine hood cleaning directly reduces fire risk, keeps your operation aligned with health code requirements, and extends the working life of your exhaust equipment.
Grease accumulation in hoods, ducts, and exhaust fans is one of the leading causes of commercial kitchen fires. The National Fire Protection Association (NFPA) 96 standard exists specifically because of how quickly grease buildup can ignite under high heat.
We remove grease from every layer of the system — not just the visible hood surface. This includes the ductwork and exhaust fan, where buildup is often heaviest and most hazardous.
Key fire risk factors tied to grease buildup:
Keeping these areas clean measurably lowers the chance of a grease fire starting or spreading.
Health inspectors in Alabama assess kitchen exhaust systems as part of routine inspections. A grease-laden hood or duct system can result in violations, fines, or temporary closure.
NFPA 96 outlines cleaning frequency based on cooking volume and equipment type:
Cooking Type | Recommended Cleaning Frequency |
High-volume / 24-hour cooking | Monthly |
Moderate cooking operations | Quarterly |
Low-volume or seasonal use | Annually |
We provide inspection-ready photo documentation after every cleaning. This gives you a verifiable record to present to health inspectors or your insurance provider.
Exhaust fans and hood systems are significant investments. Grease buildup forces motors to work harder, which accelerates wear and increases the likelihood of mechanical failure.
Benefits of regular cleaning on equipment longevity:
Replacing a commercial exhaust fan or duct section is costly. Consistent cleaning is far less expensive than early equipment replacement.
Skipping hood cleaning leads to real, measurable risks — including grease fires, failed health inspections, and poor air quality that affects both staff and customers.
Grease accumulates inside the hood, filters, ducts, and exhaust fan every time your kitchen operates. Over time, that buildup becomes highly flammable.
The National Fire Protection Association (NFPA) reports that cooking equipment is the leading cause of fires in commercial kitchens. Grease-laden ducts are a primary contributor.
A few key points:
Regular hood cleaning directly reduces this risk by removing the fuel source before it becomes a danger.
Commercial kitchens in Alabama are subject to fire codes and health regulations that require hood systems to be cleaned at scheduled intervals. The frequency depends on your cooking volume and equipment type.
Cooking Type | Recommended Cleaning Frequency |
High-volume (24-hour operations) | Monthly |
Moderate (burgers, pizza, etc.) | Quarterly |
Low-volume (churches, seasonal) | Annually |
Failing an inspection can result in:
We help you stay compliant so your business keeps running without interruption.
A dirty hood system cannot ventilate your kitchen effectively. When grease and debris clog filters and ducts, smoke, heat, and cooking fumes circulate back into the kitchen instead of being expelled outside.
This creates a working environment that is uncomfortable and potentially harmful to kitchen staff. Prolonged exposure to poor air quality can contribute to respiratory irritation and reduced productivity.
Customers seated near the kitchen may also notice odors that reflect poorly on your establishment. A properly maintained hood system keeps air moving cleanly and efficiently, protecting both your team and your reputation.
Commercial kitchen owners across Alabama choose us because we bring certified expertise, flexible scheduling, and professional-grade equipment to every job.
Our technicians are trained and certified in commercial kitchen exhaust cleaning standards. We follow NFPA 96 guidelines, which govern the cleaning and maintenance of kitchen ventilation systems used in commercial settings.
This matters because compliance isn’t optional — it affects your fire insurance, health inspections, and operating permits. Our team understands the difference between a surface clean and a thorough degreasing of every component in your exhaust system.
We’ve worked with a range of commercial kitchens, including:
That experience means we recognize issues quickly and clean efficiently without disrupting your operation longer than necessary.
Not every kitchen runs the same, and cleaning frequency should reflect how hard your system actually works. A high-volume fry kitchen needs more frequent service than a low-use prep kitchen.
We assess your kitchen’s cooking volume and equipment type, then recommend a schedule that keeps you compliant and your system clean. Common service intervals include:
Kitchen Type | Recommended Frequency |
High-volume frying/grilling | Every 1–3 months |
Moderate-use commercial kitchen | Every 3–6 months |
Low-volume or seasonal kitchen | Every 6–12 months |
You won’t be locked into a one-size-fits-all plan. We build schedules around your operation, not the other way around.
We use commercial-grade pressure washing systems and degreasers rated for heavy grease buildup in exhaust hoods, fans, filters, ducts, and plenum areas. Standard cleaning tools don’t reach the grease that accumulates deep inside ductwork — ours do.
Our equipment also allows us to work faster and more thoroughly, reducing downtime for your kitchen. After every service, we leave a before-and-after report so you have a clear record of the work completed — useful for insurance documentation and health code compliance.
Every job starts with a clear assessment, follows a defined cleaning procedure, and ends with documented results you can use for compliance purposes.
When we arrive at your facility, we inspect the full exhaust system before any work begins. This includes the hood canopy, filters, ductwork, and rooftop exhaust fan.
We use this inspection to identify grease buildup levels, access points, and any components that need special attention. This determines the scope of work and allows us to give you an accurate, upfront quote — no surprises once the job is underway.
What we assess:
Hood canopy and filters
Interior ductwork and plenum
Exhaust fan and rooftop components
Grease trap and drip trays
Before cleaning begins, we cover surrounding surfaces and equipment with protective sheeting to prevent contamination and mess.
We then apply commercial-grade degreasing agents and use heated pressure washing to break down and remove accumulated grease from all system components. This method is more effective than cold water or chemical-only approaches, particularly in high-volume kitchens.
The process covers:
| Component | Method |
|---|---|
| Hood filters | Hand-scrub + pressure wash |
| Plenum and ductwork | Heated pressure wash |
| Exhaust fan blades | Manual degreasing |
| Grease drip trays | Removal, clean, and reinstall |
Once cleaning is complete, we remove all protective coverings and dispose of grease waste properly.
After cleaning, we reassemble all hood components and verify that the exhaust system is properly aligned and functioning. We check airflow and fan operation before leaving the site.
You receive a written service report documenting what was cleaned, the condition of each component, and confirmation that the system meets applicable fire safety standards, including NFPA 96 requirements.
This report serves as your compliance record and can be presented during health or fire inspections. We also note any components that may need repair or replacement, so you can address issues before they become problems.
Commercial kitchen owners often have specific questions about cleaning frequency, what the service covers, scheduling, pricing, and compliance documentation.
The required frequency depends on how heavily your kitchen is used and what type of cooking you do. High-volume operations using solid fuel or wok cooking typically require cleaning every month. Kitchens with moderate cooking activity are usually cleaned quarterly, while low-volume operations may only need service once or twice a year.
NFPA 96 outlines these intervals as the standard for commercial kitchen ventilation maintenance.
We clean the full exhaust system, not just the visible hood. This includes the filters, interior hood surfaces, grease traps, exhaust fans, and the ductwork running from the hood to the rooftop. All grease buildup is removed throughout the entire ventilation path.
Most appointments take between two and four hours. Larger kitchens with multiple hood systems or heavily built-up grease may take longer. We give you a realistic time estimate before we arrive based on the scope of your system.
Several things influence the cost:
We typically schedule service during off-hours, such as late nights or early mornings, to avoid interrupting your staff and customers. The work involves degreasing chemicals and water, which makes operating in the kitchen during cleaning impractical. We work with your schedule to find the least disruptive window.
Yes. After each service, we provide a certificate and inspection report that documents the cleaning date, technician information, and the condition of the system. This paperwork is required by many fire marshals and insurance providers. Keeping these records on file protects your business during inspections.
