02 / Commercial · Commercial gas safety certificate (CP42)
Commercial Gas Safety Certificate (CP42) for Kitchens & Landlords
The annual gas safety certificate for commercial kitchens and catering premises. Every appliance, the pipework, ventilation and interlock inspected by COMCAT-qualified Gas Safe engineers, with the CP42 issued on the day.
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“Thank you to Des, he has been my gas engineer since I started my business in 2022. He managed to safely inspect all my gas appliances and safety check everything, always a quality service.”OnFries, Google review
/ Call or email
Get a fixed-price quote
Two ways to reach us: call the 24/7 line, or send the form and we'll reply the same working day.
We call back within 30 minutes(working hours)
Smell gas? Turn it off at the meter, open windows and call the National Gas Emergency line on 0800 111 999 first — then call us.
/ What the CP42 inspection covers
A CP42 is the commercial catering equivalent of a landlord's gas safety record. Environmental health officers, insurers, landlords and franchisors all expect to see a current one, and it's the document that proves your kitchen's gas installation has been inspected by a suitably qualified engineer in the last 12 months.
We inspect every appliance, test the pipework for tightness, check the gas interlock works with the extraction and that the ventilation is adequate for the appliances installed. Anything that fails is reported clearly with a price to fix — and we can usually do the work on the same visit so you're not left without a certificate.
The engineer who signs your CP42 holds the commercial catering (COMCAT) qualifications that non-domestic work requires — check any engineer's Gas Safe ID card for these before letting them sign.
- Annual CP42 inspection
- All catering appliances
- Interlock & ventilation
- Certificate issued same day
Kitchen or plant room down? Call 07515 123196 — sites that have stopped trading are prioritised.
- Every gas catering appliance inspected and tested
- Tightness test on the installation pipework
- Gas interlock and emergency isolation checked
- Ventilation and extraction adequacy assessed
- Flue and combustion checks where applicable
- Burner pressures and heat inputs recorded
- Defects reported with a written quote to put right
- CP42 certificate issued to the operator and landlord
- Commercial landlord certificates for let non-domestic premises
/ Who we work for
Restaurants & takeaways
Fit-outs, catering equipment, CP42 and interlocks.
Pubs, bars & hotels
Kitchens, commercial boilers, plant rooms and certificates.
Schools & care homes
Planned maintenance, out-of-hours servicing, compliance records.
Offices & managed buildings
Commercial boilers, landlord certificates, portfolio contracts.
Dark kitchens & caterers
Container and mobile units, rapid fit-outs, repairs.
Landlords & agents
Commercial gas certificates and portfolio servicing.
/ Areas we cover
Greater London and a wide radius across Surrey, Hampshire and Berkshire, including London, Sutton, Woking, Basingstoke, Guildford, Reading, Epsom, Winchester, Slough, Andover, Bracknell, Farnborough, Windsor and Reigate. For multi-site contracts we'll travel further — see the full coverage map.
/ Other commercial services
/ Questions we get asked
Straight answers. If yours isn't here, call — it's quicker than a form.
Is a CP42 a legal requirement?
Employers and operators have a duty under the Gas Safety (Installation and Use) Regulations to keep gas appliances and installations safe, and an annual inspection by a qualified engineer is how that's evidenced. EHOs, insurers and landlords will ask for a current certificate.
How long does the inspection take?
Typically one to two hours depending on the number of appliances. We work around your prep and service times.
What if something fails?
We report it on the certificate and quote the fix. Immediately dangerous appliances have to be isolated — we'll do that, and put it right as fast as possible.
Do you also do the interlock and extraction?
Yes — interlock testing, repairs and new installations, and we can advise on extraction to DW172.
Ready when you are.