Cleaning Your Commercial Kitchen HVAC Duct

Commercial kitchens are bustling hubs of activity, where delectable meals are prepared and served. But behind the scenes, hidden in the maze of ductwork, grease and grime accumulate over time. Neglecting the cleaning of your kitchen’s HVAC ducts and components not only affects air quality but also poses fire hazards.


Prepping the Area

Before starting to work on commercial kitchen HVAC duct cleaning in Los Angeles, it’s essential to prepare the area:

  1. Clear Workspace: Ensure that the kitchen workspace is clear of any obstructions or obstacles that may hinder the cleaning process.
  2. Protection: Cover appliances, countertops, and equipment with protective sheets or plastic to prevent them from getting soiled during the cleaning process.
  3. Safety Measures: Adhere to safety protocols, including wearing appropriate protective gear such as gloves, eye protection, and masks, as well as turning off gas lines to prevent accidents.
  4. Turn Off Equipment: Switch off all kitchen equipment, including stoves, ovens, and grills, to ensure safety during cleaning.


Two Primary Methods of Cleaning Kitchen Grease Exhaust

Commercial kitchen grease exhaust systems are notorious for accumulating grease and other contaminants over time. To maintain a safe and hygienic kitchen environment, two primary methods of cleaning are commonly used:

1. Scraping

Scraping involves manually removing grease and debris from the interior surfaces of the exhaust system. This method typically requires dismantling parts of the system to access and scrape away accumulated grease.


  • Effective at removing thick layers of grease.
  • Allows for a detailed inspection of the system’s condition.
  • Can be a cost-effective method for lighter cleaning needs.


  • Labor-intensive and time-consuming.
  • May require more frequent cleaning due to incomplete removal of grease.
  • Requires expertise to ensure thorough cleaning.

2. Pressure Washing or Steam Cleaning

Pressure washing or steam cleaning employs high-pressure water or steam to dislodge and remove grease, dirt, and contaminants from the surfaces of the exhaust system. This method is highly effective for deep cleaning and is favored for its efficiency.


  • Thoroughly cleans surfaces, including hard-to-reach areas.
  • Removes both visible and hidden contaminants.
  • Reduces the need for frequent cleaning.


  • Requires specialized equipment.
  • Must be performed by trained professionals.
  • Adequate drying time is essential to prevent moisture-related issues.


Parts Involved in Commercial Kitchen HVAC Duct Cleaning

Commercial kitchen HVAC duct cleaning is a meticulous process that involves several critical components:

1. Filters

Filters are the first line of defense in trapping grease and contaminants from the air. Regular filter maintenance and replacement are crucial to ensure proper airflow and prevent grease from entering the ductwork.

2. Canopy Hood

The canopy hood, also known as the range hood or exhaust hood, is positioned directly over cooking equipment to capture and channel grease-laden vapors and smoke. It plays a vital role in directing these contaminants to the exhaust system.

3. Exhaust Plenum

The exhaust plenum is the chamber where air from the canopy hood is collected before being routed into the ductwork. It is a prime location for grease accumulation and must be thoroughly cleaned to prevent fire hazards.

4. Ducting

Ductwork is the network of pipes or channels that transport air and contaminants from the kitchen to the exterior. Cleaning the ducting is essential to remove accumulated grease and ensure proper ventilation.

5. Exhaust Fan

The exhaust fan propels air through the ductwork and out of the building. Regular maintenance and cleaning of the fan blades and housing are necessary to prevent contamination and ensure efficiency.

6. Fire Protection Systems

Fire suppression systems, such as automatic fire extinguishers or fire suppression nozzles, are often integrated into commercial kitchen exhaust systems. Regular inspection and maintenance of these systems are critical for safety.

Benefits of Professional Commercial Kitchen HVAC Duct Cleaning Services

While some aspects of kitchen exhaust cleaning can be performed in-house, it’s highly recommended to enlist the services of professionals. Here are the top reasons why:

  1. Expertise: Trained technicians have the expertise to perform thorough cleaning and inspections, ensuring your system is operating at its best.
  2. Compliance: Professional cleaning services are well-versed in industry regulations and codes, helping you stay compliant with safety standards.
  3. Safety: Keeping your exhaust system clean reduces fire hazards, protecting your kitchen and staff.
  4. Improved Air Quality: Clean systems promote better indoor air quality, which is vital for the health and comfort of your kitchen staff.

Commercial Kitchen HVAC Duct Cleaning Los Angeles

We offer commercial kitchen air cleaning services for a range of commercial kitchen spaces, including restaurants, bars, office buildings, and production facilities. We have extensive experience in the Los Angeles and Southern California area, including Santa Barbara, Orange County, Ventura County, San Francisco and San Diego.

Our cleaning services help improve the overall appearance of cleanliness and safety, which enhances employee morale and customer satisfaction. Contact Safe Kitchens today for a free estimate on our commercial sanitization services.

safe-kitchens-logo-C-1-1-1 (2)
Contact Us

(833) 472-3548

    How can Safe Kitchens help?

    Contact Information

    Company Information