AAC Gas provide commercial and industrial gas safety certificates across Merseyside and the surrounding areas. Gas Safe registered and working exclusively with commercial and industrial clients, our engineers carry out thorough gas safety inspections and issue CP15, CP16, CP17, and CP42 certificates to businesses across all five Merseyside boroughs — Liverpool, Knowsley, St Helens, Sefton, and Wirral.
From warehouses and factories on Knowsley Industrial Park to commercial kitchens across Liverpool city centre, care homes throughout Merseyside, and manufacturing facilities on the Wirral industrial estates, AAC Gas provide clearly documented, audit-ready gas safety certification that keeps your business compliant, your insurance valid, and your operations running safely.
Call us on 01772 382971 to arrange a commercial gas safety inspection anywhere across Merseyside.

Yes — any business operating gas appliances on commercial premises is legally required to ensure those appliances are inspected, maintained, and certified safe by a Gas Safe registered engineer. This applies to every business regardless of size or sector, from a small restaurant kitchen on Liverpool's Bold Street to a large manufacturing facility on Knowsley Industrial Park.
Failure to maintain valid gas safety certification can result in insurance policies becoming void, enforcement action from the Health and Safety Executive, prohibition notices, and in serious cases, criminal prosecution. For care homes and healthcare facilities across Merseyside, gas safety compliance is also directly linked to CQC inspection outcomes and ongoing regulatory fitness.
AAC Gas provide legally compliant, clearly documented gas safety certificates that protect your Merseyside business, your staff, and your operations.
The CP15 is the standard commercial gas safety certificate for commercial premises. Issued following a thorough inspection of all gas appliances, pipework, ventilation, flues, and associated equipment — covering factories, warehouses, offices, schools, care homes, and all general commercial premises across Merseyside.Our engineers inspect every gas appliance on site, verify adequate ventilation, check for gas leaks and pipework deterioration, test safety devices and emergency controls, and issue the CP15 certificate on completion. Commonly required by insurers, facilities managers, and commercial landlords across Merseyside as evidence of annual gas safety compliance.
The CP16 is issued specifically following inspection of commercial boiler installations. Our Gas Safe engineers carry out a detailed assessment of the boiler plant, heat exchangers, flue systems, controls, pressurisation equipment, and associated pipework — verifying safe and compliant operation before issuing the CP16 certificate.Particularly relevant for the large boiler plant installations found across Merseyside's care homes, hotels, schools, hospitals, and large commercial and industrial premises on Knowsley Industrial Park and the Wirral industrial estates.
The CP17 covers the safety inspection and certification of existing gas installations in commercial premises — including pipework, meter installations, emergency controls, and associated equipment. Commonly required for commercial property acquisitions, lease renewals, insurance purposes, and where gas installations have not been recently assessed.We carry out CP17 inspections across Merseyside for commercial landlords, property managers, facilities managers, and duty holders responsible for commercial premises gas safety compliance.
The CP42 is the annual legally required gas safety certificate for commercial kitchens. It covers all gas-fired catering appliances — ranges, ovens, fryers, grills, salamanders, combi ovens, pasta cookers — along with the gas interlock system, ventilation, and gas pipework.Liverpool's extensive hospitality sector — from the Albert Dock and Baltic Triangle restaurants to hotels across the city centre, pubs and bars across all five boroughs, and institutional catering in hospitals, schools, and care homes throughout Merseyside — all require annual CP42 certification. Our engineers carry out inspections with minimum disruption to kitchen operations and issue certificates on the day.

Every commercial gas safety inspection carried out by AAC Gas across Merseyside includes:
All work is carried out by Gas Safe registered engineers holding commercial ACS qualifications. We work exclusively in commercial and industrial environments.
Factories, manufacturing plants, and industrial units across Knowsley Industrial Park, Speke, Haydock, Aintree, Bromborough, and Wirral's industrial estates all require annual CP15 certification for commercial boilers, industrial heating systems, and process equipment.
Merseyside's significant warehousing and logistics sector — concentrated across Knowsley, Speke, Aintree, and the wider M57 and M62 corridor — requires annual certification for warm air heaters, radiant tube heaters, and loading bay heating systems.
Care homes and nursing homes across all five Merseyside boroughs require CP15 and CP42 certification as part of their CQC compliance obligations. Our DBS checked engineers carry out inspections across Liverpool, Knowsley, St Helens, Sefton, and Wirral with minimum disruption to residents.
Restaurants, hotels, pubs, takeaways, staff canteens, and all commercial kitchen operators across Merseyside require annual CP42 certification. This is checked by Environmental Health Officers and required by insurers and licensing authorities.
Schools, colleges, and universities across Merseyside require annual commercial gas safety certification for boilers, heating systems, and catering equipment. We schedule inspections to avoid disruption to term-time operations.
Office buildings, business parks, retail premises, and mixed-use commercial developments across Merseyside with gas heating systems require regular CP15 and CP16 certification.
St Helens has a historically significant manufacturing and glass production sector with specialist process heating requirements. We provide gas safety certification for manufacturing and process facilities across St Helens and the surrounding area.
Commercial premises associated with the Port of Liverpool and the wider Mersey waterfront — including logistics operations, port-side industrial facilities, and commercial buildings — require regular gas safety inspection and certification.
Every commercial gas safety inspection carried out by AAC Gas across Merseyside includes:
All work is carried out by Gas Safe registered engineers holding commercial ACS qualifications. We work exclusively in commercial and industrial environments.
Factories, manufacturing plants, and industrial units across Knowsley Industrial Park, Speke, Haydock, Aintree, Bromborough, and Wirral's industrial estates all require annual CP15 certification for commercial boilers, industrial heating systems, and process equipment.
Merseyside's significant warehousing and logistics sector — concentrated across Knowsley, Speke, Aintree, and the wider M57 and M62 corridor — requires annual certification for warm air heaters, radiant tube heaters, and loading bay heating systems.
Care homes and nursing homes across all five Merseyside boroughs require CP15 and CP42 certification as part of their CQC compliance obligations. Our DBS checked engineers carry out inspections across Liverpool, Knowsley, St Helens, Sefton, and Wirral with minimum disruption to residents.
Restaurants, hotels, pubs, takeaways, staff canteens, and all commercial kitchen operators across Merseyside require annual CP42 certification. This is checked by Environmental Health Officers and required by insurers and licensing authorities.
Schools, colleges, and universities across Merseyside require annual commercial gas safety certification for boilers, heating systems, and catering equipment. We schedule inspections to avoid disruption to term-time operations.
Office buildings, business parks, retail premises, and mixed-use commercial developments across Merseyside with gas heating systems require regular CP15 and CP16 certification.
St Helens has a historically significant manufacturing and glass production sector with specialist process heating requirements. We provide gas safety certification for manufacturing and process facilities across St Helens and the surrounding area.
Commercial premises associated with the Port of Liverpool and the wider Mersey waterfront — including logistics operations, port-side industrial facilities, and commercial buildings — require regular gas safety inspection and certification.

We provide commercial gas safety certification across all areas of Merseyside including Liverpool city centre, Knowsley, Knowsley Industrial Park, Speke, Aintree, Bootle, Sefton, Southport, Birkenhead, Bromborough, Ellesmere Port, Wirral, St Helens, Haydock, Runcorn, Widnes, and Halton.#
To arrange CP15, CP16, CP17, or CP42 certification for your Merseyside business, contact AAC Gas today.
📞 Call: 01772 382971 — 24/7 for emergencies
🌐 aacgas.co.uk
📍 Based in Higher Walton, Preston — serving Merseyside and the wider North West
Same-week appointments available across Merseyside.
Phone: 01772 382971
24/7 Emergency: 07592 333187
Email: info@aacgas.co.uk