Commercial gas safety · Kent
Commercial Catering Gas Safety: Your Obligations as an Operator
If you run a commercial kitchen with gas appliances, the law puts the duty for keeping them safe squarely on you. It is not the engineer’s responsibility, or the landlord’s alone — the operator has to be able to show that gas equipment is maintained, inspected and used safely. Here is what that means in practice, and the paperwork an EHO or your insurer will expect to see.
Quick answer
As a commercial catering operator, your core gas safety obligations are:
- Use a properly qualified engineer — anyone working on your gas equipment must be Gas Safe registered and hold the commercial catering categories (COMCAT). Domestic registration alone is not enough.
- Keep everything maintained in a safe condition — the Gas Safety (Installation and Use) Regulations 1998 place a duty on you to maintain appliances, pipework and flues so they stay safe to use.
- Have an annual gas safety inspection — a documented examination by a commercial catering engineer, recorded on a catering gas safety record (commonly a CP42).
- Fit and maintain a gas interlock where gas appliances rely on mechanical extraction, so the gas cannot be on without adequate ventilation (BS 6173).
- Keep the records — inspection certificates, service history and your risk assessment are what prove due diligence to an EHO, an insurer or in the event of an incident.
What you need to have in place
A compliant commercial kitchen can show all of the following on demand:
- A Gas Safe registered commercial catering engineer — check the card, front and back. It lists the categories the engineer is qualified for. Commercial catering work needs COMCAT categories, not domestic ones.
- A current gas safety record — the written result of your annual inspection. There is no fixed statutory frequency for commercial premises, but annual is the accepted standard and is what most insurers require.
- A working gas interlock — tested and proven, so extraction has to be running before gas will flow. This is a requirement of BS 6173 where appliances depend on mechanical ventilation.
- Adequate ventilation and air supply — enough extraction and make-up air for the appliances installed, so combustion products are removed and the kitchen does not go into depression.
- A gas risk assessment — under the Management of Health and Safety at Work Regulations 1999, sitting alongside your wider HACCP and health-and-safety paperwork.
- A maintenance log — service dates, parts fitted and any faults, so the history of each appliance is traceable.
⚠️Stop — suspect a gas problem?
Act on any of these straight away — do not carry on trading and hope:
- You can smell gas — turn the gas off at the emergency control valve, do not touch electrical switches or use naked flames, ventilate the area, and call the National Gas Emergency Service on 0800 111 999.
- Lazy yellow or orange flames, sooting or heavy condensation — signs of incomplete combustion and a carbon monoxide risk. Shut the appliance down and get a Gas Safe engineer to it.
- The interlock keeps tripping or the extraction has failed — never bypass or defeat an interlock to keep cooking. It is there to stop gas running without ventilation.
- An appliance has been turned off or condemned — leave it isolated. It must not go back into use until a Gas Safe registered engineer has made it safe.
Due a gas safety inspection? Talk to a Kent engineer.
Gas Safe registered commercial catering engineers across east and central Kent. Service agreement holders get their gas safety inspection scheduled and certified as part of the cover.
📞 Call 01304 873469 Book an engineerNext steps
Gas interlock systems explained
How the interlock works, why it trips, and what BS 6173 expects of your kitchen.
Read the guide →Extraction & gas interlock repair
Canopy, extract and interlock installation, testing and compliance across Kent.
Extraction & interlock Kent →Stay compliant year-round
A service agreement builds your annual gas safety inspection and records into planned cover.
See service agreements →Commercial catering gas safety — common questions
How often does a commercial kitchen need a gas safety inspection?
There is no single fixed frequency written into law for commercial premises, unlike the annual landlord check for domestic lets. In practice, an annual gas safety inspection is the accepted standard, it is what insurers generally require, and it is the interval we recommend for any kitchen in regular use. Heavy-use sites may need more frequent servicing on individual appliances.
Who is legally responsible for gas safety in a commercial kitchen?
The duty falls on the person in control of the premises and the equipment — usually the employer or operator. Under the Gas Safety (Installation and Use) Regulations 1998 you must keep gas appliances, pipework and flues maintained in a safe condition. Where you lease the premises, responsibility can be split with the landlord, so check what your lease says, but the operator using the appliances always carries a duty.
Does my engineer need special qualifications for commercial catering?
Yes. Commercial catering gas work requires Gas Safe registration with the commercial catering appliance categories (COMCAT). An engineer qualified only for domestic gas work is not competent, or legally covered, to work on your commercial appliances. Always check the categories on the Gas Safe card.
What is a gas interlock and do I have to have one?
An interlock links your gas supply to the kitchen ventilation so the gas cannot be turned on unless the extraction is running and proven. Where gas catering appliances rely on mechanical extraction, BS 6173 requires an interlock. It protects against a build-up of combustion products and carbon monoxide, and defeating or bypassing it is never acceptable.
What records should I keep to prove compliance?
Keep your current gas safety record, the service history for each appliance, your gas risk assessment, and any interlock test and commissioning paperwork. Together these demonstrate due diligence to an EHO, satisfy your insurer, and give you a defensible position if there is ever an incident.
Gas safety sorted, on the record.
Gas Safe registered engineers across east and central Kent. 8am–5pm Mon–Fri. Out of hours, leave a message.
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