In the UK rental market, a valid CP12 certificate is a legal requirement for landlords and a critical safety document for tenants. But how do you know if yours is still valid?
Fraser Bond provides a clear guide to help you confirm your gas safety certificate status, understand the expiry rules, and take action if it’s out of date.
A CP12 is a Gas Safety Certificate issued by a Gas Safe registered engineer after checking all gas appliances and systems in a property. It confirms they are safe to use and legally compliant.
UK landlords must:
Conduct an annual gas safety check
Retain each CP12 for at least two years
Provide copies to tenants before move-in and within 28 days of each inspection
A CP12 is valid for 12 months from the date of the inspection. After that, the certificate expires automatically, even if all systems passed the check.
Important:
If your CP12 is dated more than 12 months ago, it is no longer valid, and you are legally non-compliant.
Find your most recent CP12 certificate (PDF or printed copy). Look for:
The inspection date
The expiry date (not always listed, but assumed to be 12 months from the inspection)
The engineer’s Gas Safe licence number
If the inspection was:
Less than 12 months ago → Your CP12 is still valid
More than 12 months ago → The certificate is expired and must be renewed immediately
Visit the Gas Safe Register and:
Use the “Check an Engineer” tool
Enter the engineer’s 7-digit licence number
Confirm they were registered and qualified at the time of the inspection
For landlords:
You are in breach of UK gas safety laws
Your property insurance could be void
You risk fines, prosecution, or tenant complaints to local authorities
You cannot legally start a new tenancy without a valid CP12
For tenants:
Your safety could be at risk due to uninspected appliances
You have the right to request an up-to-date certificate
If your landlord refuses, contact your local council’s housing team
Fraser Bond ensures full legal coverage for landlords by offering:
Automatic CP12 tracking and reminders
Annual gas inspections by Gas Safe registered engineers
Secure digital certificate storage and access
Delivery of certificates to tenants within legal timeframes
We prevent expiry risks before they happen—keeping landlords protected and tenants safe.
A CP12 is only valid for 12 months, and letting it expire can put your property and legal standing at risk. Fraser Bond helps landlords monitor, renew, and distribute CP12s seamlessly—ensuring full gas safety compliance at every stage.
Not sure if your CP12 is still valid? Contact Fraser Bond for expert support and digital gas certificate management.
