CP42
Commercial kitchen gas certification
- Usually for
- Restaurants, cafés, pubs, hotels, takeaways and other fixed commercial catering premises.
- Purpose
- Inspection and certification of qualifying commercial catering gas installations and appliances.
Safety Hub · Certificates
Commercial gas certificates explained
A practical route map for choosing between CP42, CP44, CP17, CP15, CP16 and domestic CP12 services without duplicating the detailed service pages.
Book Online 24/7Start with the installation
The certificate code is not the starting point
Begin with the premises, fuel, appliances and work required. A restaurant kitchen, mobile catering trailer, landlord property and commercial plant room do not follow the same service route. This guide helps narrow the choice before you book or request a quote.
Certificate route map
Choose the closest service category
Each card links to the existing service page containing the current scope, price or quotation route.
CP44
Mobile catering gas certification
- Usually for
- Food trucks, trailers, vans, temporary catering units and other mobile LPG catering setups.
- Purpose
- Inspection and certification focused on qualifying mobile catering gas and LPG arrangements.
CP17
Commercial gas safety report
- Usually for
- Non-domestic premises requiring broader inspection and reporting across gas installations, appliances, pipework or flues.
- Purpose
- A quote-led commercial gas safety inspection and reporting route where CP42 or CP44 is not the complete scope.
CP15
Plant commissioning and servicing records
- Usually for
- Commercial boiler rooms, plant rooms and qualifying non-domestic gas equipment.
- Purpose
- Commissioning or servicing records for applicable commercial plant and equipment.
CP16
Commercial testing and purging
- Usually for
- Commercial pipework projects requiring strength testing, tightness testing or purging.
- Purpose
- A specialist, quote-led route for qualifying non-domestic gas pipework work.
CP12
Landlord gas safety certificate
- Usually for
- Landlords, letting agents and residential rental properties.
- Purpose
- The domestic landlord certificate route, included here to prevent confusion with commercial certification.
Before booking
Four-step selection check
- Identify whether the premises are domestic, fixed commercial catering, mobile catering or broader non-domestic plant and pipework.
- List the appliances, fuel type, cylinders, pipework, ventilation, interlocks and plant that may need to be included.
- Use the published booking route for standard CP12, CP42 or CP44 work, or request a quotation for specialist commercial scope.
- Send photographs and site details before attendance where the installation is unusual, mixed-use or difficult to describe.
Prepare the site
Information and access reduce wasted visits
Good preparation helps the engineer understand the installation, complete the agreed scope and identify any separate remedial work clearly.
- Make appliances, controls, emergency stops and isolation points accessible.
- Have existing records, previous certificates and known fault information available.
- Confirm that extraction, ventilation and interlock systems can be operated during the visit.
- Ensure a responsible person can explain the site layout and authorise access.
- Report suspected leaks, unsafe operation or emergency concerns immediately rather than waiting for a routine certificate visit.
Common questions
Certificate selection FAQs
Is one certificate suitable for every commercial gas installation?
No. The appropriate route depends on the premises, appliances, fuel, installation and work required. A fixed commercial kitchen, mobile catering unit and commercial plant room can require different inspection and reporting scopes.
Can CP42 cover a food truck or catering trailer?
Mobile catering is normally directed to the CP44 service route on GetGasCert. Mixed or unusual installations should be described before booking so the correct scope can be confirmed.
What happens when the job is outside a fixed-price certificate service?
CP15, CP16, CP17, plant-room and broader commercial work is assessed from the site details and quoted according to the required scope.
Does a certificate replace servicing or repairs?
No. Inspection, servicing, fault diagnosis, remedial work and certification are distinct activities. Findings may identify work that needs to be completed separately.