Kitchen Deep Cleaning, Exhaust & Duct Cleaning Services in UK

Kitchen exhaust and duct cleaning is the professional removal of accumulated grease, carbon deposits, grime, and other contaminants from the exhaust hoods, ductwork, fans, filters, and vents in a commercial kitchen. Over time, cooking produces airborne grease and steam that stick to the inner walls of ventilation systems. If left unaddressed, this buildup significantly increases the risk of fire, reduces ventilation efficiency, and creates an unhealthy environment for kitchen staff. Regular professional cleaning ensures your kitchen remains safe, hygienic, and compliant with UK health and safety standards.

The recommended cleaning frequency is guided by the TR19 standard published by the Building Engineering Services Association (BESA). According to these guidelines, heavy-use kitchens operating 12–16 hours per day should be cleaned every 3 months, moderate-use kitchens operating 6–12 hours per day every 6 months, and light-use kitchens operating 2–6 hours per day at least once a year. Most commercial kitchens fall under moderate or heavy use, meaning cleaning every 3 to 6 months is generally the recommended practice to maintain safety and compliance.

A professional kitchen duct cleaning service typically covers a thorough inspection of the entire ventilation system, followed by deep cleaning of the ductwork interiors, exhaust hoods, canopies, extraction fans, filters, grease traps, and vents. At Crystal, our process begins with a detailed inspection to identify hazards, followed by comprehensive cleaning using specialist equipment, any necessary maintenance, and a final quality check to confirm everything meets safety standards. The service targets all the areas that a standard kitchen clean-down simply cannot reach.

Yes. Crystal Facilities Management uses eco-friendly products and environmentally responsible techniques during all cleaning processes, ensuring effective results without causing unnecessary harm to the environment.

Yes, professional deep cleaning includes high-level cleaning of canopies, extractor fans, ductwork, and ventilation systems to ensure optimal performance and hygiene. 

The duration of a kitchen duct cleaning service depends on the size of the kitchen, the complexity of the ductwork layout, and the level of grease accumulation. For an average-sized commercial kitchen, the process typically takes around 4 to 6 hours. Larger kitchens with extensive ducting and multiple extraction points may require more time. Professional cleaning companies typically schedule the work outside of your normal operating hours or during quieter periods to minimise disruption to your kitchen operations.

Minimal disruption is one of the key priorities for professional duct cleaning services. Crystal schedules all kitchen cleaning work at times that are most convenient for your business, such as late evenings, early mornings, or during off-peak days. Professional teams arrive fully equipped, use protective coverings to safeguard floors, walls, and equipment from any mess, and work efficiently to complete the job without impacting your daily service. The goal is always to restore full kitchen operation as quickly as possible.

Yes, clean ductwork directly contributes to better energy efficiency in your commercial kitchen. When ducts are clogged with grease and debris, the ventilation system has to work significantly harder to maintain adequate airflow, consuming more energy in the process and putting additional strain on motors and fans. Regular cleaning restores the system to its optimal capacity, improves airflow, reduces the load on ventilation equipment, and can lead to lower energy bills over time — making it both a safety investment and a cost-saving measure.

Professional kitchen duct cleaning typically involves a combination of specialist techniques including mechanical brushing, high-powered vacuuming with HEPA-filtration systems, agitation devices, application of degreasing chemicals, and hot water pressure washing. The exact methods used will depend on the type, size, and condition of your ductwork system. Professional technicians are trained to handle different types of ductwork — including systems with difficult access points — ensuring a thorough clean throughout the entire extraction system.