How Often Should A Commercial Kitchen Be Deep Cleaned?

Daily cleaning keeps a commercial kitchen running, but it doesn't reach everything. Grease builds up behind equipment, extraction systems collect residue, and hard-to-reach areas get missed, even in kitchens with a strict daily routine. That's what a deep clean is for.

There's no single answer that fits every kitchen, but there are clear factors that determine how often yours should be scheduled, and clear risks if it's left too long.

Below, we'll cover what affects deep cleaning frequency, general guidelines by kitchen type, and the signs you've left it too long.

Need help right now? Call us on 0208 066 0360 — we offer commercial kitchen deep cleaning across the UK.

Why daily cleaning isn't enough

Standard daily cleaning covers surfaces, equipment exteriors and general tidiness, but it doesn't typically reach:

• Behind and underneath heavy equipment
• Extraction canopies, filters and ductwork
• Grease build-up in hard-to-reach corners and joints
• Deep cleaning of ovens, fryers and grills beyond surface wiping
• Floor drains and areas prone to grease and food debris accumulation

Over time, these areas build up residue that daily cleaning simply isn't designed to remove.

What affects how often you need a deep clean

• Type of food prepared — fried and grilled food produces far more grease than lighter menus
• Volume of covers served — busier kitchens generate more build-up, more quickly
• Extraction system usage — heavily used extraction systems need more frequent attention to stay compliant and reduce fire risk
• Kitchen layout and equipment age — older equipment and tighter layouts tend to trap more grease and debris
• Insurance and compliance requirements — some insurers and local authorities set minimum deep cleaning frequencies, particularly for extraction systems

General guidelines

These are starting points. Extraction systems in particular often have specific compliance requirements that are worth checking with your insurer, as usage-based servicing is standard practice for fire safety compliance.

Signs you've left it too long

• Visible grease build-up on walls, ceilings or equipment surfaces
• Persistent greasy or stale smells that daily cleaning doesn't resolve
• Reduced extraction performance, with more heat or smoke lingering in the kitchen
• Pest activity, as grease and food residue attract pests over time
• Failed hygiene inspection scores relating to cleanliness beyond visible surfaces

What happens if deep cleaning is neglected

• Fire risk, particularly from grease build-up in extraction systems
• Hygiene rating impact, as inspectors look beyond what's immediately visible
• Insurance issues, since many policies require evidence of regular extraction cleaning
• Pest problems, as accumulated grease and food debris attract infestations
• More expensive cleaning later, as heavily built-up grease takes longer and costs more to remove than regularly maintained areas

Building a deep cleaning schedule

1. Start with the guidelines above based on your kitchen type and volume
2. Check your insurance policy for any specific extraction cleaning requirements
3. Factor in busy periods, such as Christmas or peak trading seasons, which may warrant additional cleaning
4. Keep cleaning records, useful for hygiene inspections and insurance purposes
5. Set up a recurring schedule rather than booking reactively, so cleaning happens consistently

Our commercial kitchen deep cleaning service is built around your kitchen's actual usage, covering everything from extraction systems to equipment and hard-to-reach areas.

Contact us today

ICE Cleaning provides commercial kitchen deep cleaning for restaurants, pubs and commercial premises across the UK.

To set up a schedule or book a clean, contact our team on 0208 066 0360 or contactus@icecleaning.co.uk