Commercial Kitchen Cleaning in London: How to Choose the Right Service

That’s where professional commercial kitchen cleaning comes in. A proper deep clean tackles the areas routine cleaning simply can’t reach, and gives you the documentation and certification to prove the work’s been done to a proper standard, not just given the once-over and signed off.

For restaurants, hotels, care settings, schools and other food premises, picking the right cleaning contractor is crucial. You need to know what’s included, what health and safety requirements apply, how the extraction will be cleaned, and whether the company has the insurance, training and experience to do the job properly. Fully licensed kitchen cleaning in London should come with an accredited, background-checked cleaning team as standard, not as an upsell.

In this blog, we’ll cover what a professional kitchen deep clean should include, what UK food hygiene and fire-safety requirements mean for your food service business, and the checks worth making before you commit to one of the many kitchen cleaning contractors in London and beyond.

Why wiping down isn’t enough

Daily cleaning and commercial deep cleaning aren’t the same job. Legally and practically, they’re worlds apart.

• Daily cleaning is the routine wipe-down your kitchen staff do between shifts. It’s cosmetic, surface-level, and mostly about keeping the pass and prep areas clean and looking presentable.
• Deep cleaning is a scheduled, specialist service that strips grease and pathogens from the places daily cleaning never gets near.

While daily cleaning is necessary and useful, it’s only ever surface-deep. A proper deep clean reaches the kitchen’s hidden zones: inside ovens, fryer combustion chambers, extractor canopies, and the rubber gaskets around your cold storage doors. That’s exactly where grease, carbon and bacteria such as E. coli, Listeria and Salmonella like to build up, often for months, with nothing visible to give the game away.

Your chefs have enough on their plate without spending prep time scrubbing extraction systems and fryer parts. They’re not trained for it, they won’t have the right kit, and however hard they scrub, they still can’t produce the compliance paperwork an environmental health officer (EHO) or insurer will ask to see. A professional cleaning service people trust delivers both the clean and the paper trail.

What does UK law actually require?

The legal minimum

• The Food Safety Act 1990 provides the legal framework for requirements covering the construction, maintenance and cleanliness of food premises. Under UK food hygiene legislation, food premises must be kept clean and maintained in good repair and condition.
• In Great Britain, the assimilated version of Regulation (EC) No 852/2004 on the hygiene of foodstuffs requires food-contact surfaces and equipment to be kept in good condition, effectively cleaned and, where necessary, disinfected at a frequency sufficient to prevent contamination.
• The Workplace (Health, Safety and Welfare) Regulations 1992 require commercial workplaces to be kept sufficiently clean, with waste removed regularly rather than allowed to accumulate.
• COSHH, the Control of Substances Hazardous to Health Regulations 2002 (as amended), requires employers to assess the risks from hazardous cleaning substances and prevent or adequately control exposure to them. Businesses using a professional cleaning contractor should establish what substances will be used and how the associated risks will be controlled. Relevant COSHH information and risk assessments should be available, with a method statement where appropriate.

The TR19® grease fire insurance rule

Insurers may impose requirements that go beyond the legal minimum. Some commercial property and business insurance policies require kitchen extraction systems to be cleaned at specified intervals and may reference TR19® Grease as the relevant standard. This refers to a set of specifications drawn up and issued by the Building Engineering Services Association (BESA). If a fire occurs, insurers may ask for evidence that the extraction system was properly maintained and cleaned in accordance with the policy requirements.

That’s why it’s important to understand your policy’s specific cleaning requirements and keep clear records of the work carried out, including relevant TR19® documentation.

What a professional deep clean covers

A genuine deep clean covers five areas that daily cleaning never touches:

1. Extraction
2. Ductwork
3. Cooking equipment
4. Cold storage
5. Floors, walls and ceilings

None of this shifts with a squirt of washing-up liquid. Reputable kitchen cleaning services across London use proper products like industrial-grade alkaline chemicals and steam technology built to dissolve baked-on grease and carbon that ordinary products simply won't touch.

If a quote doesn’t cover most of these areas, ask exactly what you’re getting before you book. A low price isn’t much of a saving if half the kitchen gets left untouched.

How to choose the right kitchen cleaning partner

Not all cleaning companies are equal, and not every commercial cleaning services provider is set up to handle a working kitchen.

Before you sign up with a commercial kitchen cleaning company, there are five things worth checking: who’s actually doing the work, how they’re insured, which accreditations they hold, how staff are vetted, and what you’ll get in writing. These checks give you a much clearer picture of what you’re actually paying for.

1. Ask who’s actually carrying out the work. We operate across London and nationwide from our Hertfordshire base, using our own cleaning staff rather than subcontracting the work.
2. Check the contractor’s Public Liability Insurance. £5 million or more is commonly required by commercial clients, but the important thing is that the level of cover is appropriate for the work being carried out.
3. Look for recognised contractor accreditations or certifications, such as SafeContractor, CHAS or ISO 9001:2015, and check that kitchen extraction work is carried out in accordance with the relevant BESA TR19® Grease specification where applicable.
4. Ask how staff are vetted, particularly if the kitchen is in a school, hospital or care home. Depending on the setting and the work involved, DBS checks may be required by the client or appropriate for the role.
5. Be wary of unusually cheap quotes, especially if the scope of work isn't clearly set out in writing. A low price may reflect a narrower scope rather than a better deal.

What does commercial kitchen cleaning cost in London?

There’s no standard price for a commercial kitchen deep clean. A small café with straightforward access is a very different job to a large restaurant, hotel or institutional kitchen with extensive extraction and years of built-up grease.

When putting a quote together, a professional cleaning company will normally weigh up things like the size of the kitchen, the equipment and extraction system, access, the condition of the premises, and how much cleaning is actually needed. How often you need the service can also affect the overall cost, particularly if you set up a regular maintenance programme rather than booking occasional one-off cleans.

Be cautious about comparing quotes on price alone. Check what’s actually included: extraction and ductwork, cooking equipment, floors and other structural areas, and any documentation or certification you’ll receive once the work's done. A site survey gives the contractor a much clearer idea of what the job involves, and lets you compare quotes like-for-like.

For an accurate price on commercial kitchen cleaning in London, KDC Food Hygiene can provide a free quote. Simply complete this form with as much detail as possible and upload photos of the kitchen or equipment requiring cleaning. This helps us establish an accurate, competitive quote. For larger kitchens, a site visit may be required.

Why choose us

KDC Food Hygiene provides commercial kitchen deep cleaning and extraction cleaning across London and beyond, working out of its Hertfordshire base. We use our own trained staff rather than subcontracting the work, and offer flexible, out-of-hours cleaning to minimise disruption to your business. RAMS and COSHH documentation are available on request, and you’ll receive certification once the work is complete.

Every kitchen has its own requirements, so we agree the scope of work with you upfront rather than treating every job as a one-size-fits-all clean. If you want to discuss your requirements, our team is happy to help. Give us a bell on 0208 245 8850 or email lee@kdcfh.co.uk.

FAQs

How often should a commercial kitchen be deep cleaned?

There’s no single fixed schedule that suits every commercial kitchen. How often you need a professional deep clean depends on the type of food being prepared, how heavily the kitchen’s used, and how quickly grease and residue build up. Many businesses arrange a deep clean every three to six months, while high-volume kitchens may need it more often. Extraction systems should be assessed and cleaned according to the level of grease risk and the requirements set out in TR19 guidance.

What’s the difference between daily cleaning and a professional deep clean?

Daily cleaning is the routine work carried out by kitchen staff, like wiping food-contact surfaces, cleaning equipment after use, mopping floors. A professional deep clean is more intensive and covers the areas that aren’t practical to clean during normal service, such as extraction systems, the inside of ovens, hard-to-reach equipment and built-up grease. Both matter: a deep clean doesn’t replace good daily cleaning, it backs it up.

Is deep cleaning a legal requirement for commercial kitchens in London?

UK food hygiene law requires commercial food premises, equipment and surfaces to be kept appropriately clean and maintained, but it doesn’t prescribe a specific service called a “deep clean”. How often and what type of specialist cleaning you need will depend on the premises, equipment and food-safety risks involved. Extraction cleaning can also fall under fire-safety requirements and the terms of your insurance policy, so it’s worth keeping proper records and certification on file.

How much does commercial kitchen cleaning cost in London?

Prices vary quite a bit, because no two commercial kitchens are the same. A small café with straightforward access might cost a few hundred pounds to deep clean, while a large restaurant, hotel or institutional kitchen can run considerably higher. Contractors will usually factor in the size of the premises, the equipment and extraction system, access, the condition of the kitchen and how much grease has built up when putting a quote together. A site survey is generally the best way to get an accurate price.

How do I find a reliable kitchen cleaning service in London?

Start by checking what the contractor actually includes in the service. Ask who’ll be carrying out the work, whether they use their own staff or subcontractors, what insurance and accreditations they hold, what health and safety documentation they provide, and whether they can work around your kitchen’s operating hours. Most importantly, ask for a written quote that clearly sets out the areas to be cleaned and any certification or reports you’ll get afterwards. That’s the surest way to find a reliable kitchen cleaning service in London rather than just the cheapest one.