UK commercial-kitchen gas decision guide

A commercial kitchen needs evidence that its gas system is safely maintained—not a certificate name without a defined scope

If the kitchen uses natural gas or LPG, identify the dutyholder, every appliance, the supply and pipework, ventilation, extraction and interlocks. Upkeepone can then check the suitable fixed-kitchen, mobile-catering, service, repair or commissioning route before quoting.

CP42 label explainedEngineer categories checkedQuote based on the full kitchen

The short answer

Gas-using kitchens need safe maintenance and suitable evidence; CP42 is a common record name

The legal duty

Keep gas equipment in a safe condition

HSE says employers in hospitality and catering must ensure applicable gas appliances, flues, pipework and safety devices are safely maintained and competently inspected.

The useful evidence

Record the kitchen that was actually checked

A CP42-style record can help demonstrate maintenance, but it should name the fuel, supply, appliances, scope, tests, findings, limitations and responsible engineer.

The inspection interval

Annual is guidance, not a blanket expiry rule

HSE says intervals vary with equipment and use and should follow manufacturer recommendations, with annual inspection a reasonable general minimum.

The engineer

Match the exact Gas Safe categories

Restaurants and similar premises need a Gas Safe registered engineer qualified for the fuel, commercial catering equipment and work involved.

Choose the closest route

The right visit depends on the kitchen, fuel, recent changes and requested evidence

Your situation Likely route to discuss Evidence to send first Do not assume
Fixed restaurant, pub, hotel, school or takeaway using gas Commercial catering inspection and CP42-style gas-safety record, with service added if required. Postcode, fuel, appliance list, pipework, ventilation, interlock and previous records. That every appliance is covered simply because one certificate exists.
Food truck, trailer, horsebox, stall or mobile bar using LPG Mobile catering LPG or CP44 route with the complete unit and supply arrangement. Unit, cylinders, regulators, hoses, pipework, every appliance, movement and organiser wording. That a fixed-kitchen CP42 record covers the vehicle or event.
New, replaced, moved or converted appliance Installation or commissioning checks, followed by the appropriate wider inspection record. Appliance data, fuel, input, layout, extraction, make-up air, pipework and commissioning history. That an older kitchen record remains suitable after the change.
Known fault, unsafe notice, failed flame or smell of gas Emergency action where appropriate, then diagnosis, repair and separately scoped return checks. Do not delay the emergency route; provide the notice, appliance and fault information when safe. That a routine certificate appointment is an emergency-response service.
Landlord, council, insurer, franchise, venue or contract asks for evidence Forward the exact request so the inspection and record can be matched to it. Requester wording, deadline, dutyholder, kitchen scope, fuel and complete equipment list. That the words "gas certificate" identify one universal document.

What CP42 should mean in practice

A record is useful only when the scope can be understood later

CP42 is widely used as shorthand for a commercial catering gas-safety record, particularly for fixed kitchens. It should not be sold as a universal licence to trade or as proof that every legal, fire, electrical, food-hygiene, landlord or building duty has been met.

The premises, natural-gas or LPG supply, every included appliance, accessible pipework, ventilation, extraction, interlocks, checks, findings, defects and limitations should be identifiable. Omitted or inaccessible equipment should not be silently treated as covered.

Potential inspection scope

Show the complete gas path, kitchen airflow and appliance load

Fuel and supply

Natural gas, cylinders or bulk LPG

Identify the meter or LPG storage, regulators, supply pressure, isolation, emergency controls and any landlord or supplier boundary.

Pipework and connections

Accessible routes, joints and appliance inlets

Show visible pipework, valves, supports, flexible connectors, quick-release devices, restraints and damage or alterations.

Every gas appliance

Cookers, ovens, grills, fryers and water heaters

Provide make, model, fuel, input and data-plate photographs for installed, movable, spare or externally used equipment.

Combustion and flues

Safe operation and products of combustion

Applicable combustion, flame supervision, flues, clearances and signs of heat damage or incomplete combustion are considered.

Ventilation and extraction

Canopy, fans and make-up air

HSE highlights adequate make-up air and ventilation because poor airflow can contribute to carbon-monoxide accumulation.

Interlocks and controls

Match the arrangement to the appliances

The gas and ventilation relationship, proving arrangement, shut-off controls and relevant appliance or flue requirements need competent assessment.

Inspection and maintenance frequency

Use the earliest applicable maintenance requirement

HSE says catering gas inspection periods may vary depending on the equipment and its use, and should follow manufacturer recommendations. Annual inspection is described as a reasonable general minimum—not a guarantee that every kitchen is safe until the same date next year.

High use, heat, grease, movement, outdoor exposure, recurring faults, appliance changes, hose condition, ventilation problems or an unsafe finding can justify earlier checks or repairs. Stop using equipment that is known or suspected to be unsafe.

Choose what the appointment must achieve

Inspection, servicing, repair and commissioning are not interchangeable

Inspection and record

Document defined checks and findings

Use when the kitchen needs current evidence for the declared gas system and appliance scope.

Inspection plus service

Combine condition evidence with maintenance

Request both when manufacturer-led servicing is due; confirm each appliance and what servicing includes.

Fault diagnosis and repair

Price remedial work separately

Provide the symptoms and previous notice. Parts, further investigation and return checks cannot be promised before diagnosis.

Installation or commissioning

Assess a change before relying on old records

New equipment can affect pipework capacity, ventilation, extraction, interlocks, clearances and the combined appliance load.

Prepare a quotation without avoidable delay

Send six groups of information before requesting attendance

1. Site

Postcode, kitchen type and access

Give the address, restaurant, takeaway, school, hotel or other setting, parking, opening hours and shutdown restrictions.

2. Gas supply

Fuel, meter or LPG arrangement

Send photographs of the supply, regulator, isolation, visible pipework and any bulk tank or cylinder storage.

3. Appliance schedule

Every item and data plate

List make, model, serial, input and fuel for each appliance, including movable, spare or disconnected equipment.

4. Air system

Extraction, make-up air and interlock

Provide canopy, fan, permanent ventilation, interlock-panel and previous airflow or commissioning information.

5. History

Records, faults and alterations

Attach the last gas record, service sheets, unsafe notices, repairs, new equipment and any access limitation.

6. Requested output

Exact words and deadline

Forward the landlord, insurer, council, franchise, venue or contract requirement so the proposed record can be checked.

If gas may be escaping

Use the emergency route for the actual fuel

Do not operate electrical switches or use flames. For mains gas in Great Britain call the National Gas Emergency Service on 0800 111 999. For LPG, follow the supplier's emergency instructions for the cylinders, tank and installation.

If there is fire, an uncontrolled release, immediate danger or any doubt, evacuate and call 999. Upkeepone's routine enquiry numbers are not emergency reporting services.

Postcode-qualified commercial catering enquiries

Where Upkeepone can consider commercial-kitchen gas work

Regular work covers London, Essex and Kent. Hertfordshire, Surrey, Buckinghamshire, Berkshire and Sussex can be considered when the right commercial catering gas or LPG trade is available. Other UK areas are considered by request after the postcode, kitchen or unit, fuel, appliances, ventilation, work and engineer categories have been checked.

Continue with the closest service

Commercial kitchen certificate questions

Commercial catering gas certificate FAQs

Does every commercial kitchen need a CP42 certificate?
A commercial kitchen using gas needs an effective system for keeping applicable appliances, flues, pipework and safety devices in a safe condition. CP42 is a common name for a fixed commercial-catering gas-safety record, but the legal duty is not satisfied by the label alone. The inspection, maintenance and evidence must match the premises, fuel, appliance list and work actually completed.
Is a commercial catering gas inspection legally required every 12 months?
HSE says inspection periods may vary with the equipment and its use and should follow manufacturer recommendations, with annual inspection a reasonable general minimum. More frequent attention may be needed because of intensive use, condition, previous faults, manufacturer instructions or risk assessment. Do not treat every record as an automatic 12-month permission to keep using unsafe equipment.
What does CP42 mean?
CP42 is commonly used in the industry to describe a commercial catering gas-safety record for a fixed kitchen. The useful evidence is the named premises, fuel, supply, appliances, pipework, ventilation, extraction, interlocks, tests, findings, defects and limitations. Ask the requester what evidence they need rather than relying only on the code.
Is CP42 suitable for a food truck or catering trailer?
Mobile catering normally needs a different LPG and mobile-unit route, often requested as CP44. The complete unit, cylinders, regulators, hoses, pipework, every installed or stored appliance, ventilation, isolation and movement arrangements must be declared. A fixed-kitchen record should not be relabelled as a mobile catering inspection.
Who can inspect gas equipment in a restaurant or takeaway?
For restaurants, shops, schools, hotels and similar premises, gas work must be carried out by a Gas Safe registered engineer who is currently qualified for the work. Check the engineer's ID card for the fuel, commercial catering and appliance categories involved. Registration alone does not mean every engineer holds every category.
What should a commercial kitchen gas inspection cover?
The agreed scope may include the gas supply, accessible installation pipework, isolation, gas soundness, appliances, burners, flame supervision, combustion, flues, ventilation, extraction, make-up air, interlocks, flexible connections, restraints and visible condition. The exact scope depends on the kitchen and should be confirmed before attendance.
Does a gas-safety inspection include servicing and repairs?
Not automatically. An inspection records the checks and findings within the agreed scope. Servicing, cleaning, adjustment, investigation, parts, repairs and return attendance may be separate work. Ask for an inspection-and-service quotation if both are required, and do not assume remedial work is included in a certificate price.
Do I need a new gas record after changing a catering appliance?
New, replaced, moved or converted gas equipment needs suitable installation and commissioning by an appropriately qualified engineer. The wider installation, pipework, ventilation, extraction, interlock and appliance load may also need reassessment. Send the new appliance data and previous records before booking.
What information should I send for a commercial catering gas quote?
Send the postcode, kitchen type, natural-gas or LPG supply, complete appliance list and data-plate photos, visible pipework and isolation, ventilation and interlock details, previous records, faults or alterations, access times and the exact wording requested by a landlord, council, insurer, venue or contract.
What should I do if I smell gas in a commercial kitchen?
Treat it as a possible emergency. Do not use flames or operate electrical switches. For mains gas in Great Britain call the National Gas Emergency Service on 0800 111 999. For LPG follow the supplier's emergency instructions. If there is fire, immediate danger or any doubt, evacuate and call 999.

Need the correct commercial-kitchen route?

Send the postcode, kitchen, fuel, supply, complete appliance list and requested evidence

Upkeepone can check the likely fixed-kitchen CP42-style, mobile LPG, inspection, service, repair or commissioning route, engineer categories, service area and quotation before attendance is agreed.

Possible gas escapes must follow the emergency route above.