Commercial Gas Safety Certificate (CP 42)
Start from £149.99
All inclusive (No hidden Cost)
What is considered as an appliance?
- Radiators are part of boiler for gas safety inspection and are tested with the boiler and are not considered as a separate appliance
What is a Gas Safety Certificate?
The CP 42 is a certificate confirming compliance with Gas Safety Regulations, issued by a qualified engineer and valid for one year, requiring annual renewal. As a commercial property owner or manager, you must ensure the safety of gas appliances and flues, including regular servicing and maintenance. A valid CP 42 demonstrates that a registered gas safe engineer has inspected your appliances. Failing to obtain this certificate could lead to legal issues and safety risks, as well as potential costly repairs. Ensure you secure your CP 42 annually to comply with the law.




Do You Want To Book Multiple Services?

Appliance Safety Assurance
A Commercial Gas Safety Inspection, or CP42, is a crucial evaluation for commercial properties with gas appliances, ensuring their safety and the absence of potential hazards.

Certified Technician
Gas safety inspections must be conducted by qualified, Gas Safe registered engineers. At Landlord Certificate London, all our engineers carry their Gas Safe ID cards for verification.

Gas Leak Inspection
The engineer will test the appliances and pipework for safety, checking for gas leaks and carbon monoxide (CO) emissions. A Gas Safety Certificate will be issued if all is in order.
What Does a Commercial Gas Safety Inspection Include?
A boiler inspection covers all components, including the flue, burner, controls, and related parts. A critical aspect is the boiler flue test, which ensures safe and efficient operation. This test typically uses a gas analyzer to measure Carbon Monoxide (CO) and other gas levels in the flue. The results indicate whether the boiler is functioning safely and if any repairs or adjustments are necessary.
- During a CP42 inspection, our engineer will assess the flue's condition, which is the pipe that vents waste gases from the boiler outside your property.
- A damaged flue can leak toxic carbon monoxide into your home, so ensuring it’s in good condition and properly sealed is crucial. Typically sealed with specialized flue cement, we offer gas safety inspections for commercial boilers at £159.99, with no hidden costs.
- During a commercial gas safety inspection of a hob or cooker, the ignition system, leak integrity, and overall condition are evaluated to ensure safe usage and eliminate any risks.

- For optimal safety, a boiler flue should be at least 12 inches from any openable windows to prevent gas fumes from entering your home. If you're due for a gas safety inspection, we can check this distance and, if necessary, extend the flue to ensure compliance and issue a pass for your Commercial Gas Safety Certificate (CP42).
FAQ's
Frequently Asked Questions
A CP42 is a certificate that confirms compliance with Gas Safety Regulations, ensuring that all gas appliances and flues in a commercial property are safe to use. It is issued by a qualified engineer and is valid for one year.
Commercial property owners and managers are required to obtain a CP42 to demonstrate that gas appliances and flues have been regularly inspected and maintained by a registered gas safe engineer.
The CP42 must be renewed annually to ensure ongoing compliance with safety regulations.
The inspection includes checking all gas appliances, such as boilers, hobs, and cookers, as well as associated pipework and connections for leaks, blockages, and safe operation.
Failing to obtain a valid CP42 can lead to legal issues, safety risks, and potential costly repairs if something goes wrong.
The cost starts at £154.99 for one gas appliance, with additional pricing for multiple appliances. All prices are inclusive with no hidden costs.
Inspections must be carried out by qualified, Gas Safe registered engineers. You can verify their credentials through their Gas Safe ID cards.
You can book a gas safety inspection by contacting us directly via phone or through our website.