Commercial Gas Safety Certificate (CP42/CP17) London

A commercial gas safety certificate confirms that the gas installation and appliances in a non-domestic premises are safe to use. For businesses in London using gas in shops, offices, restaurants or workshops, a valid certificate is a key part of meeting general safety duties under UK gas safety law and is often required by insurers and for compliance.

Book a service See pricing

Two main certificates apply: the CP17 Commercial Gas Installation Safety Report for general commercial premises, and the CP42 Commercial Catering Gas Safety Certificate specifically for kitchens with gas cooking equipment. These are distinct from the domestic CP12 certificate for rented homes. The inspection must be carried out by a Gas Safe engineer specifically qualified for commercial and non-domestic gas work.

We provide a quote-only pricing model for this service. After you contact us with details of your premises and appliances, we will provide a clear, fixed-price quote for the inspection and certification. No work begins until you have approved the quote.

Pricing for a commercial gas safety certificate is confirmed by quote only, based on the specific premises and the number and type of appliances to be inspected. You can find more information on our quote-only approach on our pricing page.

What you get

Gas Safe registered engineers specifically qualified for commercial and non-domestic gas work carry out all inspections.
Clear distinction between a CP17 for general commercial premises and a CP42 for commercial kitchens, ensuring the correct certificate is issued.
Thorough inspection of all accessible gas pipework, appliances, flues and ventilation within the scope of the certificate.
Detailed written report provided, listing any defects found and the actions required to make the installation safe.
Issued certificate provides documented proof of compliance for your business records, insurers, or other stakeholders.
Service covers all commercial premises across London, including shops, offices, restaurants, cafes, workshops and warehouses.

How it works

A method, not a guess

Request Your Quote

Contact us with details of your commercial premises, including the type of business and the number and type of gas appliances you use.

Receive Your Fixed-Price Quote

We review your details and provide a clear, fixed-price quote for the commercial gas safety inspection and certificate, with no hidden costs.

Schedule Your Inspection

Once you approve the quote, we book a convenient appointment for a qualified commercial Gas Safe engineer to visit your premises.

Receive Your Certificate

After the inspection, you will receive the relevant CP17 or CP42 certificate and a report. Any urgent safety issues will be identified immediately.

Questions

Commercial Gas Safety Certificate FAQs for London homeowners

What is the difference between a CP12 and a commercial gas safety certificate?

A CP12 Landlord Gas Safety Certificate is legally required for residential rented properties like houses and flats. A commercial gas safety certificate (CP17 or CP42) is for non-domestic premises like shops, offices, restaurants and workshops, as part of a business's general safety duties.

Who legally needs a CP17 or CP42 commercial gas safety certificate?

Landlords and owners of commercial or non-domestic premises with gas appliances need a certificate. This includes shops, offices, restaurants and cafes with catering equipment, workshops, warehouses, and managed buildings with commercial units.

How often is a commercial gas safety certificate needed?

Inspection intervals are typically annual, following standard industry practice. The specific frequency should be determined by the premises' risk assessment, and may be influenced by insurer or manufacturer requirements.

What does a CP42 certificate cover?

A CP42 Commercial Catering Gas Safety Certificate specifically covers gas cooking appliances in commercial kitchens, such as those in restaurants, takeaways, cafes, pubs, and institutional kitchens.

Can any Gas Safe engineer issue a commercial certificate?

No. Only a Gas Safe registered engineer who holds the specific qualification for commercial and non-domestic gas work may legally carry out inspections and issue CP17 or CP42 certificates.

What happens if defects are found during the inspection?

Any defects identified will be listed in the report provided with your certificate. You will be advised on the actions required to rectify them. In cases of immediate danger, the engineer will advise shutting off the appliance until repairs are made.

Explore the cluster