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Gas Interlock System Installation
Same-Day Certificates Available

Gas Interlock System Installation

Supply, install and certify gas interlock systems in the UK commercial kitchens — a legal requirement under BS 6173 / DW172 wherever ventilation serves gas appliances.

Gas Safe registered commercial engineers
Same-day & next-day availability
Covering the UK and surrounding areas
Fixed written quotes — no hidden fees
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Need your annual check booked? Get a commercial gas safety certificate London from Gas Safe registered engineers, from £150 + VAT.

About Gas Interlock System Installation

Supply, install and certify gas interlock systems in the UK commercial kitchens — a legal requirement under BS 6173 / DW172 wherever ventilation serves gas appliances.

What's Included in Gas Interlock System Installation

  • Air-pressure or current-sensing interlock
  • Wired to ventilation (extract & make-up air)
  • Solenoid valve, control panel & emergency stop
  • Commissioning and signed certificate

Combine your gas work with AC or refrigeration — save a call-out

Gas Safe + REFCOM F-Gas registered engineers can handle both trades in the same visit. Add air conditioning or refrigeration work while we are already on site and avoid a second call-out fee.

How Gas Interlock System Installation Works

  1. 1

    Get in touch

    Call or book online for gas interlock system installation anywhere in the UK. We'll confirm scope and a fixed price.

  2. 2

    Engineer attends

    A Gas Safe registered commercial engineer attends at the agreed time, fully equipped and qualified for the work.

  3. 3

    Work completed & certified

    Work is completed to the relevant standard (IGEM, BS, manufacturer spec) and you receive the appropriate certificate or report on the day.

Gas Interlock System Installation: Quick Answer

We supply, install, and certify gas interlock systems for commercial kitchens in London and the M25, a legal requirement wherever ventilation serves gas appliances. Appointments are available same-day and next-day, seven days a week, 07:00–21:00. Installation starts from £950 + VAT, with fixed written quotes and no call-out fee.

Common Problems We Solve

Ensuring compliance for commercial kitchen gas safety

We supply, install, and certify gas interlock systems, which are a legal requirement under BS 6173 / DW172 for commercial kitchens where ventilation serves gas appliances. Our Gas Safe registered engineers ensure your installation meets all UK regulations.

Urgent need for new gas interlock system installation

We offer same-day and next-day appointments across London and the M25, operating seven days a week from 07:00–21:00. This ensures your commercial kitchen can quickly become compliant with essential gas safety regulations.

Uncertainty about installation costs and hidden fees

We provide fixed written quotes for gas interlock system installations, starting from £950 + VAT. There is no call-out fee, ensuring transparency and no surprises for your business's budgeting.

What People Ask About Gas Interlock System Installation

What does a gas interlock system do?

A gas interlock system is a safety device designed to shut off the gas supply to commercial kitchen appliances if the ventilation system fails or is not operating correctly. It ensures that gas appliances can only function when there is adequate extraction and air supply, preventing the build-up of harmful fumes and ensuring safety.

Is a gas interlock system a legal requirement for commercial kitchens?

Yes, gas interlock systems are a legal requirement in commercial kitchens under BS 6173 and DW172. They must be installed wherever ventilation serves gas appliances to ensure a safe working environment and compliance with UK gas safety regulations. Our Gas Safe registered engineers can install and certify these systems.

How much does a commercial gas interlock system installation cost?

Our commercial gas interlock system installations start from £950 + VAT. We provide fixed written quotes before any work begins, ensuring full transparency with no hidden call-out fees. The final price may vary depending on the specific requirements of your commercial kitchen in London or the M25.

Do commercial premises need a gas safety certificate?

Yes, commercial premises with gas appliances require regular gas safety checks and certificates. UK law, specifically the Gas Safety (Installation and Use) Regulations 1998, mandates that commercial gas appliances need checking at least every 12 months. We provide CP42, CP15, CP16, CP17, and CP44 certificates.

What are the regulations surrounding gas interlock systems?

Gas interlock systems are regulated by UK standards BS 6173 and DW172, which outline their mandatory installation in commercial kitchens where ventilation serves gas appliances. These regulations ensure proper air exchange and prevent gas supply when ventilation is inadequate, promoting safety and compliance. Our Gas Safe engineers are fully compliant.

How quickly can you install a gas interlock system?

We offer same-day and next-day appointments for gas interlock system installations across London and the M25 area. Our service operates seven days a week from 07:00 to 21:00 to accommodate your business needs efficiently. We aim to complete installations promptly to ensure your kitchen is compliant.

Key Terms

  • Gas Safe registered engineers
  • London
  • M25
  • Gas Interlock Systems
  • BS 6173
  • DW172
  • Commercial kitchens
  • Gas Safety (Installation and Use) Regulations 1998
  • CP42 catering certificate
  • CP15 non-domestic boilers/heating

FAQs about Gas Interlock System Installation

How much does gas interlock system installation cost in the UK?+

Pricing depends on the size of your premises, the number of appliances and any access requirements. We always provide a fixed written quote before any work starts in the UK.

Are your engineers Gas Safe registered for gas interlock system installation?+

Yes. All of our engineers are Gas Safe registered for the relevant commercial categories (COMCAT 1–5, CODNCO1, CORT1) and carry the right qualifications for gas interlock system installation in the UK.

How quickly can you attend in the UK?+

For most the UK jobs we can attend the same day or next day. For emergencies we offer a 24/7 call-out service across the UK and surrounding areas.

Do you provide a certificate or report on completion?+

Yes — every job is completed with the correct documentation, whether that is a CP-series certificate, a tightness test record, a service report or an interlock commissioning certificate.

Do you cover commercial premises throughout the UK?+

Yes. We cover restaurants, pubs, hotels, schools, care homes, offices and industrial sites across the UK and the surrounding areas — including landlords, managing agents and facilities companies.

Is a gas interlock system a legal requirement for commercial?+

Compliance with the law: Yes, you heard it right. According to the UK's gas safety regulations and the British Standard BS6173, any food business operating a commercial kitchen must install a gas safety interlock system. Therefore, you need to have a gas safety interlock system fitted to comply with the law.

How much is a gas interlock system?+

The £995.00 package deal includes the Merlin CT1200s panel, two air pressure differential switches, one remote emergency shut-off button and a ¾” or 1” gas solenoid valve.

What is classed as a commercial gas installation?+

A job is legally considered “non-domestic” or commercial if the gas appliance is rated above 70kW (kilowatts) net input. Appliances below this are generally domestic, though the location (e.g., a boiler in a shop vs. a house) can sometimes influence the necessary certification.

How does an interlock system work?+

If you do not complete the test or do not pass your initial test you will need to try. Again. Once you have passed the initial test you may start the vehicle and be on your way.

Our Gas Safe engineers can carry out any of the works below in the same visit across the UK.

FAQs about related services

Can I book related commercial gas services with my gas interlock system installation in the UK?+

Yes — when our engineer attends in the UK for gas interlock system installation, they can also carry out boiler servicing, gas tightness testing, interlock work, pipework or emergency repairs in the same visit, saving you a second call-out fee.

Do you cover all of the related services across the UK?+

Yes. Every service listed in the "related commercial gas services" section is delivered by our own Gas Safe registered commercial engineers throughout the UK and the surrounding areas — no subcontractors.

Will I get one combined quote for gas interlock system installation and any related work in the UK?+

Yes. Tell us what you need when you book and we'll send a single fixed written quote covering gas interlock system installation plus any additional commercial gas works at your the UK premises.

Every CP-series certificate below can be completed on the same visit as your gas interlock system installation.

FAQs about gas safety certificates

Which gas safety certificates can I get alongside gas interlock system installation in the UK?+

On the same visit in the UK we can issue CP42 (commercial catering), CP44 (mobile catering & LPG), CP17 (installation), CP15 (plant commissioning), CP16 (testing & purging) and CP2 (leisure industry) certificates wherever the work falls within scope.

Do landlords and managing agents in the UK need a CP-series certificate as well as gas interlock system installation?+

In most cases, yes. Commercial landlords and managing agents in the UK have a legal duty under the Gas Safety (Installation and Use) Regulations 1998 to hold a current annual gas safety certificate for every commercial gas appliance, in addition to any one-off works.

Are the certificates issued in the UK accepted by insurers and Environmental Health?+

Yes. All certificates we issue in the UK are produced by Gas Safe registered commercial engineers and are accepted by insurers, Environmental Health Officers, the HSE, building control and managing agents.

Ready to Book Your Gas Interlock System Installation?

Secure your certificate today. Our Gas Safe registered engineers are available seven days a week with same-day service as standard.

Starting from £150 + VAT for 1 appliance • Same-day service available