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Commercial Kitchen Gas Interlock Supply & Installation

Call us today on 01745 798390 for a quick quote

We suppy, install and maintain commercial kitchen gas interlock systems thoughout North Wales, Chester and Liverpool areas.

Our experienced commercial gas safe engineers can repair and install every type of commercial kitchen gas interlock system. We offer advice and can provide a free quotation call us today on 01745 798390 for a quote or to book a site visit.

Gas interlocks are a legal requirement for commercial kitchens fitted out since 2001. They check that the ventilation is working.

You need to have a gas interlock system fitted in all new commercial kitchens with a gas appliance. Older kitchens without a gas interlock system must have one fitted when carrying out major refits. If you install a new canopy, replace gas appliances or alterations to the gas pipework. If a kitchen pre dating 2001 doesn't have an interlock fitted a risk assessment must be carried out to establish whether an unacceptable risk is likely to arise. You're advised to consult a commercial catering gas safe engineer if your kitchen pre dates 2001.


There are two methods that gas interlocks can use. Air pressure differential switches fitted in the ducting; this method physically checks for airflow before allowing the gas solenoid valve to open. Modern method for gas interlocks uses current monitors to check the power supply going to the fans and control the gas solenoid valve accordingly. If the fans fail or when turned off the gas solenoid valve will automatically close.

Energy saving gas interlock systems are ideal for those looking to reduce the energy used during cooking.

For advice and a free quote contact us today on 01745 798390. Or for a quick quote fill out the form below.

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CONTACT US 01745 798390

Get in touch today for a fast response for gas interlock system, supply, installation and repair. Free quotes and advice available by fully qualified commercial catering gas safe engineers.

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  • Are gas interlocks easy to install?
    Gas interlocks are quick and easy to install and can be done within a couple of hours. More complicated installations that require new pipelines may take a day to complete. Installs must take place by a competent commercial gas safe engineer. Our experienced commercial catering gas safe engineers can install your gas interlock for you whilst your kitchen is in operation. They will work around your busy periods and leave the disruptive part of the installation for a convenient time of day. Contact us today for a free quote.
  • Are gas interlock systems a legal requirement?
    Since 2002 any business that operates a commercial kitchen has been a required to have a gas interlock system in place for new commercial kitchens and kitchens with major refurbishments. When installing new appliances, a kitchen without a gas interlock system will need to install one. If your kitchen installation is older than 2002, BS 6173:2020 recommends you have CO2 monitors installed. To notify when to increase the ventilation in the kitchen. Only CO2 monitors designed for use in a commercial kitchen should be used. Look for one with a PTFE filter that you can have changed easily. It is essential if you run a commercial kitchen with the following to have a gas interlock installed: Power operated flue system for a gas appliance A new ventilation system installed New appliance layout or gas pipework New gas appliance installed even if like for like for example combi ovens, fryers, salamanders. For a free quote for a new gas interlock supply and installation contact us today on 01745 798390
  • What are the commercial kitchen gas interlock regulations?
    Commercial kitchen regulations are BS6173:2020, IGEM UP19 and DW/172. BS6173:2020 specifies gas installations within commercial kitchens. It states gas should not be available within the commercial kitchen if the ventilation is not in operation, and this should be controlled by a gas interlock system. The interlock system must be CE marked. For more information HSE Gas Safety in catering and hospitality information sheet is available to download for free from the HSE website. IGEM UP/19 is a recommendation this goes further than BS6173:2020 and states that a carbon dioxide monitor should be installed when there is a variable speed controller to control the ventilation. This is because the end user can have all appliances on with the ventilation at low speed. The CO2 monitor should alarm at 2800 to alert that the ventilation needs to be increased. If ventilation is not increased once the CO2 levels reach 5000ppm the gas solenoid valve should close. DW/172 is the BESA specification for Kitchen Ventilation Systems and is acknowledged as the authoritative specification for kitchen ventilation design and installation for the UK.
  • What is a gas safety interlock system?
    A commercial kitchen gas safety interlock system is designed to shut off the gas if the mechanical ventilation in the kitchen fails. All commercial kitchens fitted out since 2002, in the UK must have a gas interlock installed. A pressure switch or current sensor is fitted to the extraction system and connected to the solenoid valve. If the system detects that the extractin system is working correctly the gas solenoid valve will allow you to use the gas appliances. Interlock systems also have a stop button that enables users to shut off the gas in an emergency.
  • Gas interlock system supply and installation price?
    Prices vary depending on the size of the gas pipework in the kitchen, the type of gas interlock required and if new pipework is necessary. For a free quotation contact us today.
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