What Happens If Your Kitchen Extraction System Fails a TR19 Inspection?

A TR19 inspection is not a pass/fail test in the traditional sense — but when a technician finds that your extraction system does not meet the BESA TR19 standard, the consequences can be significant. This guide explains what a TR19 failure means in practice, what the immediate risks are, and what steps you need to take to restore compliance.

What Does "Failing" a TR19 Inspection Mean?

A TR19 inspection involves measuring the thickness of grease deposits at multiple points throughout the extraction system — canopy, ductwork, risers, and fans. BESA TR19 specifies the maximum acceptable grease deposit thickness at each point. If the measured deposits exceed these limits, the system is non-compliant.

The most common reasons for a TR19 non-compliance finding are:

Cleaning interval exceeded — the system has not been cleaned at the required frequency
Inadequate previous clean — a previous clean did not reach all sections of the ductwork
Inadequate access — the ductwork does not have sufficient access panels to allow a full clean
System modification — the extraction system has been extended or modified without updating the cleaning programme

The Insurance Implications

This is the most immediately serious consequence for most kitchen operators. Commercial kitchen insurance policies typically contain a condition requiring the extraction system to be maintained in a clean and serviceable condition to TR19 standard. A non-compliant extraction system puts your insurance cover at risk in two ways:

At the point of claim: If a kitchen fire occurs and the extraction system is found to be non-compliant, your insurer may decline the claim — even if the fire was not directly caused by grease in the extraction system. The insurer's position is that the non-compliance represents a breach of the policy conditions, which voids the claim.

At renewal: Many insurers now request TR19 compliance certificates at renewal. If you cannot provide a current certificate, the insurer may decline to renew your policy, increase your premium, or add a specific exclusion for fire damage arising from the extraction system.

Our CII-qualified founder has seen both of these scenarios in practice. The financial consequences — a declined claim on a kitchen fire can easily exceed £500,000 — are far greater than the cost of maintaining a regular TR19 cleaning programme.

The Fire Safety Implications

A non-compliant extraction system is a genuine fire hazard. Grease deposits in ductwork are highly flammable — a flash fire in the cooking area can ignite deposits in the ductwork and spread rapidly through the building. UK Fire Statistics show that 61% of commercial kitchen fires are caused by grease buildup in extraction systems.

If a fire officer visits your premises as part of a fire risk assessment and finds that the extraction system is non-compliant, they have the power to issue an enforcement notice requiring the system to be cleaned within a specified period. In serious cases, they can issue a prohibition notice preventing the kitchen from operating until the work is completed.

The Enforcement Implications

Environmental Health Officers (EHOs) also have an interest in extraction system compliance, particularly in food businesses. A dirty extraction system can harbour bacteria and contribute to food contamination. An EHO who finds a non-compliant extraction system during a routine inspection may:

Issue a hygiene improvement notice requiring the system to be cleaned within a specified period
Lower your Food Hygiene Rating, which is publicly displayed and affects customer confidence
In serious cases, issue a prohibition notice preventing the kitchen from operating

What to Do If Your Extraction System Fails

Step 1: Book an emergency TR19 clean immediately

The most important step is to get the system cleaned as quickly as possible. BlueTick Extraction Hygiene offers an emergency response service and aims to attend within 24 to 48 hours. We produce the TR19 compliance certificate on the day of the clean.

Step 2: Notify your insurance broker

If you have received a non-compliance finding, you should notify your insurance broker immediately. They can advise on whether you need to inform your insurer and what steps are required to maintain your cover.

Step 3: Address any access panel deficiencies

If the non-compliance was caused by inadequate access panels — meaning the technician could not reach all sections of the ductwork — you will need to have access panels installed before a compliant clean can be completed. We provide access panel installation as part of our compliance programme.

Step 4: Establish a regular cleaning programme

Once the system is clean and compliant, establish a regular cleaning programme at the frequency required by BESA TR19 and your insurance policy. We provide a written cleaning schedule and reminder service to help you stay on track.

How Quickly Can Compliance Be Restored?

In most cases, compliance can be restored in a single visit. A full TR19 deep clean of a standard commercial kitchen extraction system typically takes 4 to 8 hours. We produce the compliance certificate on the day of the clean, so you can demonstrate compliance to your insurer, EHO, or fire officer immediately.

If access panel installation is required, this adds a day to the programme — but in most cases, we can complete the access panel installation and the TR19 clean in a two-day programme.

BlueTick Extraction Hygiene provides emergency TR19 kitchen extraction cleaning across Peterborough, Cambridgeshire, Lincolnshire, and Northamptonshire. Call us on 07840 992 246 for an immediate response.