What Happens During a Commercial Gas Safety Inspection?
A commercial gas safety inspection is not just a quick certificate request. The engineer needs to understand the premises, equipment, fuel type, access route and reason for the paperwork before the visit can be planned properly. This guide explains what normally happens before, during and after the inspection so London businesses, landlords and agents can book with fewer delays.
Need a commercial gas inspection booked?
Send the details once so the right commercial gas route can be checked before an appointment is confirmed. This is especially important for restaurants, cafes, takeaways, shops, offices, landlords, agents, facilities teams and managed commercial premises.
- Your name
- Contact number
- Email address
- Site postcode
- Business or premises type
- Gas appliances and fuel type
- Access contact and opening hours
- Certificate wording and deadline
What happens before the engineer attends?
The enquiry should be checked before the visit is agreed. A vague request for a "commercial gas certificate" can mean different things depending on the site. A restaurant kitchen, office boiler room, shop water heater, LPG catering setup, landlord-controlled plant room and warehouse heater may each point towards a different route.
The first step is to send the practical details: site address, postcode, business type, appliance list, fuel type, access contact, opening hours, certificate wording and deadline. If the request came from an insurer, landlord, managing agent, buyer, lease file or facilities team, send the exact wording they used.
This preparation helps identify whether the enquiry is likely to involve commercial catering gas, non-domestic installation safety, commercial boiler plant, LPG, pressure or tightness records, or another site-specific commercial gas record.
What to send first
- Full site address, postcode and trading name.
- Business type and who controls the gas equipment.
- Appliance list, fuel type and any LPG details.
- Access notes, key holder and appointment restrictions.
- Certificate wording, reason for request and deadline.
What is usually checked on site?
The exact inspection depends on the equipment, site type and commercial category. The engineer should only carry out work that fits the correct registration and competence for the commercial gas appliances or installation involved.
Site and appliance identification
The engineer may confirm the address, business type, equipment list, appliance locations, fuel supply and which areas form part of the inspection request.
Access to relevant areas
Kitchens, boiler rooms, plant rooms, risers, basements, cupboards, yards, LPG stores and landlord-controlled areas may need access depending on the job.
Visual and safety checks
The inspection route can include visible condition, installation arrangements, ventilation, flues, controls, isolation, appliance location and other safety-related observations relevant to the work.
Operational checks where relevant
Some equipment may need to be available for testing or operation. A busy kitchen, locked boiler room or unavailable duty manager can make this harder to complete.
Questions for the site contact
The engineer may need to ask about appliance use, tenant control, previous defects, recent repairs, access restrictions, fuel arrangements and who needs the final paperwork.
Outcome explanation
If an issue is found, the engineer should explain the concern and the likely next step. The final paperwork depends on the inspection findings and the route requested.
What happens after the inspection?
After the inspection, the outcome is matched to the work carried out and the records that can be issued. If the site details, appliance list and certificate wording were clear at the start, the paperwork route is usually easier to confirm.
If the engineer finds missing access, unexpected equipment, changed fuel arrangements, unsafe conditions, unclear responsibility or certificate wording that does not match the site, extra information or remedial work may be needed before final paperwork is complete.
For landlords, agents and property managers, it is useful to confirm who should receive the paperwork: landlord, tenant, facilities manager, insurer, managing agent, buyer, solicitor or compliance file. Send that recipient information before the visit if possible.
After-visit checklist
- Confirm who receives the completed record.
- Keep appliance and site details with the certificate.
- Record any remedial advice or follow-up requirements.
- Plan renewal before the next insurance, lease or compliance deadline.
What can delay a commercial gas safety inspection?
Most delays are practical rather than complicated. They happen when the engineer cannot access the right areas, the appliance list is incomplete, the certificate wording is unclear, or the site contact does not know what has been booked.
- Locked or restricted areas: plant rooms, cupboards, basements, roof spaces, yards, kitchens, landlord areas and LPG stores should be accessible where relevant.
- Unclear appliance list: list boilers, water heaters, catering appliances, warm-air heaters, LPG equipment, plant and any landlord-controlled gas systems.
- Unknown fuel type: confirm mains gas, LPG cylinders, LPG tank, mobile LPG or mixed equipment if known.
- Wrong certificate wording: send the wording from the landlord, insurer, managing agent, lease, buyer or internal compliance request.
- No responsible contact: make sure someone on site can meet the engineer, answer access questions and stay reachable by phone.
- Trading-hour conflicts: restaurants, cafes, pubs and hotels should plan around prep, service, cleaning, deliveries and quiet periods.
Which record might be issued after a commercial gas inspection?
The phrase "commercial gas certificate" is broad. Depending on the equipment and reason for the request, the enquiry may involve CP42 commercial catering gas paperwork, CP17 non-domestic gas safety records, CP15 or CP16 records, LPG paperwork, commercial boiler or plant support, or another site-specific record.
Do not guess the certificate name if you are unsure. Send the site use, appliance list, fuel type and wording requested. The route can then be checked against the premises before the visit is confirmed.
Official guidance worth checking
Official sources explain why the right registration, category and competence matter. HSE guidance for employers refers to workplace gas safety duties and the need for appropriate gas work. Gas Safe Register provides the official route to check registration and commercial categories.
This page is practical booking guidance. If a request involves a legal dispute, enforcement issue, complex lease responsibility or insurance interpretation, check with the relevant adviser as well as arranging the right gas inspection route.
Who usually asks about the inspection process?
Different customers ask the same question for different reasons. The answer should reflect the site, the paperwork deadline and who controls the equipment.
Restaurant and cafe operators
Usually need to plan around trading hours, commercial kitchen access, catering appliances, ventilation arrangements and insurance or landlord deadlines.
Commercial landlords
May need records before a lease, renewal, tenant handover, sale, insurance request or managed-property compliance review.
Managing agents and property managers
Often need to coordinate tenants, key holders, site contacts, paperwork recipients and access to landlord-controlled areas.
Facilities and estates teams
Schools, offices, public buildings, care settings and managed sites may need plant-room access, contractor sign-in and appointment planning.
Useful next pages before booking
Use these pages if the inspection request is linked to a specific certificate route, renewal date, lease, handover or information request.
Request a commercial gas inspection
Use the form to send your contact details, site postcode, business type, certificate wording, appliance list, fuel type, access notes and deadline. We will confirm the suitable route by phone or email.
Commercial gas safety inspection FAQs
What happens during a commercial gas safety inspection?
The engineer checks the relevant commercial gas equipment, installation areas, fuel arrangement and access details for the job booked. The exact checks depend on the premises, appliances, commercial category and certificate route requested.
How should I prepare before the inspection?
Send the postcode, business type, appliance list, fuel type, certificate wording, access contact, opening hours and deadline. Make sure the engineer can access relevant kitchens, boilers, plant rooms, LPG areas or landlord-controlled spaces.
Will I receive the certificate straight away?
That depends on the inspection outcome, the record requested and whether any information or remedial action is still needed. Clear appliance, access and certificate details before the visit help avoid avoidable paperwork delays.
What can stop the inspection being completed?
Restricted access, missing key holders, unknown appliances, unclear fuel type, unavailable equipment, unsafe conditions or wrong certificate wording can delay completion or require a follow-up route.
Is CP42 the certificate issued after every commercial gas inspection?
No. CP42 is commonly linked to commercial catering gas equipment. Other sites may involve CP17, CP15, CP16, LPG, boiler plant or another commercial gas record depending on the equipment and reason for the request.
Who should be available on site?
A responsible contact or key holder should be available, reachable by phone and able to provide access to the relevant appliances, plant rooms, kitchen areas, tenant spaces, LPG storage or landlord-controlled areas.
Need a commercial gas safety inspection in London?
Send the postcode, business type, appliances, fuel type, access details and deadline. Call if the inspection is linked to an insurance renewal, lease, handover, opening date or urgent compliance request.