Gas Safety Certificate (CP 12)
Start from £20
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?
A Gas Safety Certificate CP12 confirms the safety of gas appliances and pipework in a property. It includes inspection details and the contact information of the qualified engineer. In England and Wales, landlords must have a valid gas safety certificate for each rental property, provided to tenants annually. Regular maintenance is vital for safety, and if you have concerns, contact a certified gas engineer from Landlord Certificate London for assistance.




Do You Want To Book Multiple Services?

Appliance Safety Assurance
A gas safety inspection, often referred to as a CP12, is an essential evaluation for any property with gas appliances. It ensures that all gas appliances are safe to operate and free from potential hazards.

Certified Technician
Gas safety inspections must be performed by qualified, Gas Safe registered engineers. At Landlord Certificate London, all our engineers are certified, and you can verify their credentials via their Gas Safe Register ID card.

Gas Leak Inspection
During the inspection, the engineer tests appliances and associated pipework, ensuring there are no gas leaks or carbon monoxide (CO) emissions. A Gas Safety Certificate is issued if everything is safe.
What Does a Gas Safety Inspection Include?
If the inspection involves a boiler, it will assess all components, including the flue, burner, controls, and other related parts. A boiler flue test is crucial for a gas safety certificate, as it verifies safe and efficient boiler operation. Typically conducted using a gas analyzer, this test measures 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 CP12, our engineer will inspect the flue of the gas boiler, which vents waste gases outside your property.
- A damaged flue can leak harmful carbon monoxide, so ensure it's properly sealed with flue cement; contact us to book a gas safety inspection for £45 with no hidden fees.
- Ensure your boiler flue is at least 12 inches from openable windows to prevent gas fumes from entering; if it's closer, we can extend it and provide a pass Gas Safety Certificate.
- The gas line inspection checks for leaks, blockages, and proper sizing and connections to the gas fireplace.

- During a gas safety inspection of a hob or cooker, the ignition system, leak checks, and overall condition are evaluated to ensure safe usage and eliminate risks.
- A gas safety inspection of a fireplace involves a thorough check of the fireplace and associated gas lines to ensure safe and proper functioning.
- The gas fireplace inspection assesses ventilation, gas leaks, and blockages, ensuring proper connection and secure fittings to the gas line.
FAQ's
Frequently Asked Questions
A Gas Safety Certificate (CP12) is a document that confirms the safety of gas appliances and pipework in a property. It provides details of inspections conducted and certifies that everything is safe for use.
Landlords in England and Wales are legally required to obtain a Gas Safety Certificate for each rental property and provide a copy to their tenants annually.
Gas appliances should be inspected at least once a year to ensure they are safe and functioning properly.
A Gas Safety Inspection includes checking gas appliances, pipework, flues, and connections for leaks, blockages, and proper functioning. It also assesses the overall safety and efficiency of the appliances.
Only qualified and Gas Safe registered engineers can conduct gas safety inspections. At Landlord Certificate Checks, all our engineers are certified.
You can easily book a gas safety inspection by calling us or using the booking option available on our website.
If a gas appliance fails the inspection, our engineer will provide a report detailing the issues found, and necessary repairs or adjustments will need to be made before a Gas Safety Certificate can be issued.
Yes, you can verify the qualifications of our engineers through their Gas Safe Register ID card, which they carry at all times.