What Is a Gas Safe Certificate Number and How Do You Verify It?

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Fraser Bond explains CP12 verification, legal obligations for landlords, and how to maintain gas safety compliance in London.

Understand CP12 Verification and Ensure Your London Rental Meets Legal Gas Safety Requirements

Gas safety is a legal priority for landlords in the UK, particularly in London where rental regulations are strictly enforced. A valid CP12 certificate—also known as a Gas Safety Certificate—is required by law to demonstrate that all gas appliances and fittings in your rental property have been checked by a Gas Safe registered engineer.

Fraser Bond, a leading London property consultancy, offers expert support for landlords to ensure CP12 compliance and peace of mind.

What Is a CP12 Certificate?

A CP12 certificate is issued following a successful gas safety inspection carried out by a Gas Safe registered engineer. It includes:

  • Details of the landlord and property

  • Description and location of each appliance or flue checked

  • Results of safety checks

  • Any defects identified and the actions taken

  • Confirmation of engineer credentials

This certificate must be renewed annually and a copy provided to existing tenants within 28 days of inspection—or before new tenants move in.

Why CP12 Verification Is Essential

Verifying your CP12 certificate ensures:

  • Legal Compliance: Without a valid certificate, landlords can face fines or even imprisonment.

  • Tenant Safety: Unchecked gas systems can lead to leaks, explosions, or carbon monoxide poisoning.

  • Insurance Validity: Property insurance may be voided without up-to-date gas safety documentation.

  • Peace of Mind: Regular checks and valid certification protect both landlord and tenant.

How to Verify a CP12 Certificate

Fraser Bond recommends the following steps:

  1. Confirm the Engineer’s Credentials
    Ensure the inspection was performed by a Gas Safe registered engineer. You can verify this at www.gassaferegister.co.uk.

  2. Check Certificate Details
    Review the certificate for complete property details, a valid issue date within the last 12 months, and correct engineer registration.

  3. Keep Digital Records
    Store copies of your CP12 certificates securely, ideally in digital format, for easy access during compliance audits or tenancy changes.

Fraser Bond's Gas Safety Compliance Support

Fraser Bond offers a full suite of landlord services to ensure compliance with all gas safety regulations:

  • Scheduling annual CP12 inspections with Gas Safe engineers

  • Storing and managing certificate records

  • Sending renewal reminders

  • Coordinating repairs for any faults found during inspections

  • Providing copies to tenants on your behalf

This hands-off solution allows landlords to stay compliant without navigating regulatory complexities alone.

Conclusion

A valid and verifiable CP12 certificate is essential for legally letting your property in London. With Fraser Bond’s expert compliance services, landlords can ensure their properties meet all gas safety requirements and safeguard their tenants.

To learn more about CP12 verification or to schedule an inspection, visit Fraser Bond.