Quick answer
A CP12 — properly called a Landlord Gas Safety Record — is the document a Gas Safe registered engineer issues after checking that the gas appliances, pipework and flues in a rented property are safe. It records each appliance, the checks carried out and any defects. It is a safety check, not a service: a service is separate maintenance work, and many landlords sensibly book both together.
Letting agents and landlords ask us for "a CP12" every week. The name comes from an old form number, but the document is a Landlord Gas Safety Record and it exists to show the gas in a property has been checked by someone competent.
What the engineer checks
- Each gas appliance is safe to use and correctly installed
- Gas is burning correctly, with combustion checks where applicable
- Flues and chimneys are clear and terminating safely
- Ventilation to the appliance is adequate and not obstructed
- The gas pipework and installation soundness
- Any defects found, with the action taken
Safety check versus service
| Gas safety check (CP12) | Boiler service | |
|---|---|---|
| Purpose | Confirm appliances are safe | Maintain the appliance |
| Output | Landlord Gas Safety Record | Service record, often required by the warranty |
| Covers | All gas appliances, flues, pipework | The boiler itself, cleaned and checked |
| Typical timing | Annual | Annual |
Records and copies
You will need to keep the record and give a copy to your tenants — including new tenants at the start of a tenancy. Managed portfolios usually want it filed with the agent as well; we can send records directly to your agent.
For the official position on landlord duties and gas safety checks, refer to the Health and Safety Executive. HSE gas safety for landlords
Managing one property or fifty?
We carry out landlord gas safety checks and servicing across Tamworth, Birmingham and the surrounding areas, with records sent straight to you or your agent.
Landlord servicesWhen to call a professional
Safe homeowner checks stop at pressure gauges, radiator valves, controls and visible pipework. Anything involving gas, combustion, the boiler casing, the flue or internal components is work for a Gas Safe registered engineer. If you smell gas, follow the appropriate emergency gas safety guidance and do not attempt to work on the appliance.
Call 07881 963508The Betaflo recommendation
What is on a landlord gas safety record, what the check involves and why it is not the same thing as a boiler service. If you'd like a second opinion before spending money, speak to us first — we'd rather tell you your boiler is fine than sell you something you don't need.
Frequently asked questions
Is a CP12 the same as a boiler service?
No. The safety record confirms appliances are safe; a service is maintenance of the appliance. They're often done in the same visit but they are different pieces of work.
Who can issue one?
Only a Gas Safe registered engineer working within the scope of their registration. Betaflo's registration number is 936521.
What if the tenant won't give access?
Keep a clear record of your attempts to arrange access and follow current HSE guidance on what a landlord is expected to do.
About the author
Betaflo Heating UK
Betaflo Heating UK is founded and run by Miles Davis and Sam Boyle, Gas Safe registered heating professionals installing, servicing and repairing boilers across Tamworth, Birmingham and the surrounding areas. Our guides are written from the work we do in customers' homes every week. More about Betaflo.
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