Grease Build-Up in Ducts: A Hidden Fire Risk for Restaurants

If you run a busy commercial kitchen, your focus is likely on food quality, service speed, and customer satisfaction. But behind the scenes—deep within your commercial kitchen duct ventilation system—a hidden danger could be putting everything you’ve built at serious risk.

We’re talking about grease build-up in commercial kitchen duct systems.

This isn’t just an issue of hygiene—it’s a silent fire hazard that could devastate your business in seconds.

The Fire You Don’t See Coming

Every time your kitchen sizzles, spits, and steams, microscopic particles of grease are sucked into your extraction system. Over time, they build up—layer upon sticky layer—along the insides of your kitchen ducts, canopies, and fans.

You might not see it. Your team might not notice it. But fire doesn’t care.

Grease is highly flammable. When it builds up in a duct, even a small spark or flare-up on the hob can ignite a blaze that spreads invisibly, uncontrollably, and with terrifying speed through your ventilation system.

Did You Know?

• Over 70% of commercial kitchen fires originate in extraction systems due to grease build-up.
• Many insurance claims are voided if proper duct cleaning and maintenance records can’t be provided.
• The law requires you to maintain safe duct systems under NAAD 21 guidelines and the Regulatory Reform (Fire Safety) Order 2005.

Don’t Let Hidden Grease Shut You Down

Restaurants across the UK are closed every year due to fire damage caused by neglected grease build-up. The consequences?

• Weeks—or months—of lost revenue
• Reputational damage with customers and staff
• Expensive repairs or even total business loss
• Legal action and invalidated insurance claims

It’s not worth the risk.

That’s where Lex Hygiene comes in.

Expert Duct Cleaning That Keeps You Safe—and Compliant

At Lex Hygiene, we specialise in deep, certified cleaning of commercial kitchen duct systems. Our experienced technicians use industry-grade equipment to remove dangerous grease deposits from every inch of your extraction network—from canopy to fan outlet.

We follow the TR19® standard rigorously, and we’ll provide full photographic documentation and compliance reports for your records, insurers, and EHO inspections.

With Lex Hygiene, you get:

• Complete duct system cleaning by trained professionals
• Fire risk reduction and NAAD 21 compliance
• Peace of mind knowing your kitchen is safe and clean
• Proof-of-clean certificates for insurance and legal protection

We don’t cut corners—because fires don’t, either.

Don’t Wait Until It’s Too Late

Grease build-up in commercial kitchen duct systems is a ticking time bomb. Just because you can’t see it doesn’t mean it’s not growing. And once a fire starts, it’s already too late.

Your kitchen, your staff, your customers—they’re counting on you to keep them safe.

Let us help you eliminate the risk before disaster strikes.

🔥 Schedule a Safety Clean Now 🔥

Book your professional duct cleaning with Lex Hygiene today. Our team is fast, fully insured, and available across the UK. One visit could save you from catastrophe—and keep your business cooking.

👉 Schedule your safety clean now
Or call us on 01302301401 to speak with one of our friendly experts.

---

Lex Hygiene – Because what’s out of sight should never be out of mind.