Is a certificate required for all new gas installations?

Yes, any new gas appliance installation, pipework alteration, or significant repair should be signed off with a relevant Gas Safety Certificate by a Gas Safe registered engineer.

What types of certificates are issued for new installations?

Common certificates include a Gas Safety Certificate (CP12) for domestic properties, or a Gas Installation Safety Report. The specific certificate depends on the nature and scope of the work.

What if my installer didn't provide a certificate?

It is the installer's legal duty to provide a certificate. If they haven't, you should contact them immediately. If unsuccessful, you can arrange for another Gas Safe engineer to inspect and certify the work.

Does this cover both appliance and pipework?

Yes, a proper 'sign-off' for a new gas installation will cover the newly installed appliance and any new or modified gas pipework leading to it, ensuring the entire new system is safe.

New gas installation sign-off

Book New gas installation sign-off

When new gas pipework or appliances are installed, they must be inspected and certified by a Gas Safe registered engineer. This 'sign-off' confirms that the installation is safe, leak-free, and compliant with current regulations, providing peace of mind and validating the work.

When do you need a New gas installation sign-off?

This certificate is required immediately after any new gas appliance is installed or significant modifications are made to existing gas pipework. It's often issued by the installer, but can be done independently for verification.

What happens on the day

A Gas Safe registered engineer will visit to inspect the newly installed gas appliance or pipework. They will conduct gas tightness tests, check flue integrity, ventilation, and ensure the appliance is operating safely and correctly according to manufacturer instructions and Gas Safe regulations. They will need full access to the new installation.

How to prepare

Ensure the new gas appliance or pipework is fully installed and accessible.
Have any installation manuals or specifications ready for the engineer.
Ensure the gas supply to the property is active.
Be prepared to show the engineer the extent of the new work.
Ensure someone over 18 is present to provide access and answer questions.

How to improve your result

Always use a Gas Safe registered engineer for any gas work.
Keep the installation certificate in a safe place for future reference.
Ensure the area around the new appliance has adequate ventilation.
Familiarise yourself with the operation of your new appliance.
Install a carbon monoxide alarm in rooms with gas appliances.

Why it is useful day to day

Receiving a certificate for a new gas installation confirms that your new appliance or pipework is safe to use and installed correctly. It provides assurance against gas leaks or hazards, protecting your home and family.

Why we ask these questions

We ask for details about the new gas installation (e.g., type of appliance, extent of new pipework) to ensure the Gas Safe engineer has the specific qualifications for that type of work and to estimate the time required for a thorough inspection and certification.