TR19 Compliance in Scotland: What Catering Operators Need to Know in 2026

TR19 is the industry standard that governs how often commercial kitchen extract systems must be cleaned in the UK. For Scottish catering operators, compliance is not optional — it affects your insurance, your food hygiene rating, and your fire safety obligations. Here is what you need to know in 2026.

What Is TR19?

TR19 is a technical guidance document published by BESA (the Building Engineering Services Association). It sets out the standards for the inspection, cleaning, and maintenance of kitchen extract ventilation systems in commercial premises. The current edition — TR19 Grease — was updated in 2019 and remains the definitive standard used by insurers, environmental health officers (EHOs), and fire services across Scotland.

The guidance covers everything from how grease depth should be measured before and after cleaning, to the documentation that must be produced, to the qualifications a cleaning contractor should hold. It is not a legal requirement in itself, but it is referenced in insurance policies, fire risk assessments, and food hygiene legislation — which means non-compliance has real consequences.

Why Does TR19 Compliance Matter in Scotland?

There are three main reasons Scottish operators need to take TR19 seriously:

1. Insurance

Most commercial kitchen insurance policies in the UK now explicitly require TR19-compliant cleaning records. If a fire starts in your kitchen extract system and you cannot produce a valid TR19 certificate, your insurer may refuse the claim — regardless of the cause. This is not a hypothetical risk: kitchen extract fires account for a significant proportion of commercial kitchen insurance claims in Scotland each year.

2. Food Hygiene Inspections

Scottish local authorities — including Edinburgh City Council, Glasgow City Council, Aberdeen City Council, and Highland Council — conduct food hygiene inspections under the Food Standards Scotland framework. EHOs routinely ask to see extract cleaning records as part of these inspections. A TR19 certificate from an accredited contractor demonstrates that you have taken reasonable steps to manage fire risk and maintain hygiene standards.

3. Fire Safety Legislation

The Fire (Scotland) Act 2005 and associated regulations require the responsible person for a commercial premises to carry out and regularly review a fire risk assessment. Grease accumulation in kitchen extract ductwork is one of the most significant fire risks in commercial kitchens. A TR19-compliant cleaning programme is the recognised way to manage that risk.

TR19 Cleaning Frequencies

TR19 does not specify a single cleaning frequency for all kitchens. Instead, it sets out four risk categories based on cooking type and volume:

• Heavy use (12+ hours per day, high-fat cooking): every 3 months
• Moderate use (6–12 hours per day): every 6 months
• Light use (2–6 hours per day): every 12 months
• Seasonal or occasional use (less than 2 hours per day): every 12 months or as required

These are minimum frequencies. Your actual cleaning schedule should be based on a grease depth assessment — if grease is accumulating faster than expected, more frequent cleaning may be required. A reputable contractor will measure grease depth before and after each clean and advise on the appropriate frequency for your operation.

What a TR19-Compliant Clean Covers

A compliant kitchen extract clean is not just a wipe-down of the visible canopy. Under TR19, the full extract system must be cleaned — from the canopy and filters, through the ductwork, to the fan unit and discharge point. The clean must be documented with:

• Pre-clean grease depth measurements at multiple points in the system
• Post-clean grease depth measurements confirming the system has been cleaned to standard
• Before-and-after photographs of all cleaned areas
• A written report identifying any defects or areas of concern
• A TR19 compliance certificate issued by the contractor

If a contractor cannot provide all of these, the clean does not meet TR19 standard — regardless of what they claim on their invoice.

Choosing a TR19-Compliant Contractor in Scotland

Not all kitchen cleaning contractors in Scotland are TR19-compliant. When selecting a contractor, look for:

• BESA Vent Hygiene Register (VHR) membership — the industry register for TR19-compliant contractors
• CHAS Elite accreditation — the highest level of health and safety pre-qualification
• SafeContractor accreditation — widely recognised by facilities management companies
• PVG-checked technicians — essential for contractors working in healthcare, education, and care home settings

Deep Clean Scotland holds all four of these accreditations and has been providing TR19-compliant kitchen extract cleaning across Scotland since 2002.

Summary

TR19 compliance is not a box-ticking exercise — it is the practical standard that protects your business, your staff, and your customers from the risk of a kitchen extract fire. In Scotland in 2026, the consequences of non-compliance — refused insurance claims, poor food hygiene ratings, and enforcement action — are too significant to ignore.

If you are unsure whether your current cleaning programme meets TR19 standard, or if you need to arrange a compliant clean for your Scottish premises, contact Deep Clean Scotland for a no-obligation quote.