Gas, ventilation and equipment services for commercial kitchens: design and installation, repairs and maintenance, and the catering gas safety certificates your business needs.
ComGas looks after the gas, ventilation and equipment in commercial kitchens across Surrey, from restaurants, pubs and hotels to school kitchens. Regulation 35 of the Gas Safety (Installation and Use) Regulations 1998 requires employers and the self-employed to keep gas appliances, flues, pipework and safety devices in a safe condition, and HSE says the work should be done by a Gas Safe registered engineer.
Our work covers every stage of a commercial kitchen, from the design and installation of equipment to ongoing maintenance, repairs and the certification the kitchen needs. Every minute counts in a working kitchen, so we plan work around service, and isolations and access are agreed with you before we start.
Installing an appliance has rules of its own. Competent kitchen staff may disconnect a plug-in gas connection to move an appliance for cleaning, but installing and commissioning it is work for a Gas Safe registered engineer. After working on an appliance, the engineer must check the flue, the supply of combustion air, the operating pressure or heat input, and that it operates safely. HSE says second-hand appliances with open or enclosed burners should be fitted with flame supervision devices when they are installed.
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From a new kitchen fit-out to an annual catering gas safety inspection, one team covers the gas, ventilation and equipment work.
Whether you are opening a new kitchen or refurbishing an existing space, we work with you on layout and equipment selection to suit your budget and workflow, then install it to the required standards.
Regular maintenance and prompt repairs keep a kitchen running. Our engineers troubleshoot and repair commercial catering equipment, from ovens and fryers to ventilation, and planned maintenance helps reduce breakdowns and extend equipment life.
We inspect the appliances, the gas supply to them, and the ventilation and interlock that go with them, then issue a CP42 record for the kitchen’s files.
Kitchen extract and ventilation installed, replaced and maintained alongside the gas installation it serves. HSE advises cleaning ductwork regularly so grease and fat do not build up. When the weather protection on external ductwork fails, water can reach the kitchen through the extract canopy, as it did at South Farnham School.
New kitchen extract ductwork at South Farnham School, clad to match the ductwork on the roof.
Cooking produces heat and products of combustion, and the kitchen’s mechanical ventilation keeps them within safe limits. A gas interlock links that ventilation to the gas supply for the cooking appliances. If the ventilation fails, the interlock shuts off the gas.
HSE guidance says the installer should fit an interlock between any mechanical ventilation and the gas appliances. BS 6173, the British Standard for installing gas catering appliances, sets out the detail. It is not retrospective, so some older kitchens have none, and HSE says the risk should then be assessed and controlled. Manual bypasses of an interlock are not permitted.
HSE also notes that regular maintenance and cleaning of the extract helps prevent nuisance shutdowns.
The engineer needs to reach every gas appliance and check the supply, the ventilation and the interlock. Before the visit, it helps to have:
We confirm which records apply before the visit.
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If you have a certificate due, a fault or a new kitchen planned, call us or send the details and we’ll advise on the next step.
Call 01252 214120The law requires the employer or self-employed person in control to keep the kitchen’s gas appliances, pipework and flues safe. A CP42 is the record of an inspection that shows they have been checked. We inspect the installation, including the ventilation and interlock, and issue the CP42.
Yes. We plan work around service wherever possible, and isolations and access are agreed with you before we start.
Yes. We install, replace and maintain kitchen extract ductwork and ventilation alongside the gas installation, including checks on the interlock between them.
If you smell gas, turn off the supply if it is safe to do so and call the National Gas Emergency Service on 0800 111 999 before contacting us.
An interlock shuts off the gas to the cooking appliances if the mechanical ventilation fails. HSE guidance says one should be fitted where there is mechanical ventilation. BS 6173 is not retrospective, so where an older kitchen has none, the risk should be assessed and controlled. We check the interlock as part of a CP42 inspection.
The law requires them to be kept safe rather than setting a date. HSE guidance says to follow the manufacturer’s recommendations, with an annual inspection as a reasonable minimum and repairs carried out as necessary.
Yes. All our engineers and staff who attend schools and care homes hold enhanced DBS checks.
Whether it is a new installation, a fault or a certificate coming up, send the details and we’ll come back with the right next step.
Current accreditations and registrations.
Message the ComGas office on 01252 214120.
