Gas Safety Certificate (CP12) — Landlord Inspections
Gas safety certificate CP12 inspection
If you're a landlord, an annual Gas Safety Certificate — known as a CP12 — is a legal requirement for every property you let. It confirms that the gas appliances, fittings and flues in the property have been checked and are safe.
Who needs a CP12?
- Landlords letting residential property (a legal requirement)
- Anyone selling a property who wants to reassure buyers
- Homeowners who simply want peace of mind
What the check involves
A Gas Safe registered engineer will inspect each gas appliance, check for correct operation and ventilation, test for leaks and gas tightness, and issue the certificate. As a landlord you must give a copy to your tenants and keep records.
How much does a CP12 cost?
A gas safety certificate typically costs £60–£120 for one appliance, with a small extra charge per additional appliance. Booking it together with a boiler service is often cheaper.
Watch: what is a CP12?
Watch: what is a CP12 landlord gas safety check
Related services
Frequently asked questions
How often do I need a CP12? Every 12 months for let properties. What happens if I don't have one? Landlords without a valid CP12 can face significant fines and invalidated insurance, so it's not worth the risk.
Find a Gas Safe engineer for your CP12 — select your city above.